[kernel] r14807 - in dists/trunk/linux-2.6/debian: . config patches/features/all/vserver patches/series
Dann Frazier
dannf at alioth.debian.org
Thu Dec 24 04:27:52 UTC 2009
Author: dannf
Date: Thu Dec 24 04:27:48 2009
New Revision: 14807
Log:
Re-enable vserver
Added:
dists/trunk/linux-2.6/debian/patches/features/all/vserver/vs2.3.0.36.27.patch
dists/trunk/linux-2.6/debian/patches/series/3-extra
Modified:
dists/trunk/linux-2.6/debian/changelog
dists/trunk/linux-2.6/debian/config/defines
dists/trunk/linux-2.6/debian/patches/series/base-extra
Modified: dists/trunk/linux-2.6/debian/changelog
==============================================================================
--- dists/trunk/linux-2.6/debian/changelog Wed Dec 23 22:28:45 2009 (r14806)
+++ dists/trunk/linux-2.6/debian/changelog Thu Dec 24 04:27:48 2009 (r14807)
@@ -9,6 +9,7 @@
* Input: ALPS - add support for touchpads with 4-directional button
* Input: ALPS - add interleaved protocol support (Dell E6x00 series)
(Closes: #561589)
+ * Re-enable vserver
[ Ben Hutchings ]
* sfc: Apply changes from 2.6.33-rc1 adding support for SFC9000 family
Modified: dists/trunk/linux-2.6/debian/config/defines
==============================================================================
--- dists/trunk/linux-2.6/debian/config/defines Wed Dec 23 22:28:45 2009 (r14806)
+++ dists/trunk/linux-2.6/debian/config/defines Thu Dec 24 04:27:48 2009 (r14807)
@@ -27,7 +27,7 @@
enabled: false
[featureset-vserver_base]
-enabled: false
+enabled: true
[featureset-xen_base]
enabled: false
Added: dists/trunk/linux-2.6/debian/patches/features/all/vserver/vs2.3.0.36.27.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ dists/trunk/linux-2.6/debian/patches/features/all/vserver/vs2.3.0.36.27.patch Thu Dec 24 04:27:48 2009 (r14807)
@@ -0,0 +1,28743 @@
+diff -NurpP --minimal linux-2.6.32.1/arch/alpha/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/Kconfig
+--- linux-2.6.32.1/arch/alpha/Kconfig 2009-12-03 20:01:49.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -674,6 +674,8 @@ config DUMMY_CONSOLE
+ depends on VGA_HOSE
+ default y
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/alpha/kernel/entry.S linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/entry.S
+--- linux-2.6.32.1/arch/alpha/kernel/entry.S 2009-06-11 17:11:46.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/entry.S 2009-12-03 20:04:56.000000000 +0100
+@@ -874,24 +874,15 @@ sys_getxgid:
+ .globl sys_getxpid
+ .ent sys_getxpid
+ sys_getxpid:
++ lda $sp, -16($sp)
++ stq $26, 0($sp)
+ .prologue 0
+- ldq $2, TI_TASK($8)
+
+- /* See linux/kernel/timer.c sys_getppid for discussion
+- about this loop. */
+- ldq $3, TASK_GROUP_LEADER($2)
+- ldq $4, TASK_REAL_PARENT($3)
+- ldl $0, TASK_TGID($2)
+-1: ldl $1, TASK_TGID($4)
+-#ifdef CONFIG_SMP
+- mov $4, $5
+- mb
+- ldq $3, TASK_GROUP_LEADER($2)
+- ldq $4, TASK_REAL_PARENT($3)
+- cmpeq $4, $5, $5
+- beq $5, 1b
+-#endif
+- stq $1, 80($sp)
++ lda $16, 96($sp)
++ jsr $26, do_getxpid
++ ldq $26, 0($sp)
++
++ lda $sp, 16($sp)
+ ret
+ .end sys_getxpid
+
+diff -NurpP --minimal linux-2.6.32.1/arch/alpha/kernel/osf_sys.c linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/osf_sys.c
+--- linux-2.6.32.1/arch/alpha/kernel/osf_sys.c 2009-09-10 15:25:14.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/osf_sys.c 2009-12-03 20:04:56.000000000 +0100
+@@ -872,7 +872,7 @@ SYSCALL_DEFINE2(osf_gettimeofday, struct
+ {
+ if (tv) {
+ struct timeval ktv;
+- do_gettimeofday(&ktv);
++ vx_gettimeofday(&ktv);
+ if (put_tv32(tv, &ktv))
+ return -EFAULT;
+ }
+diff -NurpP --minimal linux-2.6.32.1/arch/alpha/kernel/ptrace.c linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/ptrace.c
+--- linux-2.6.32.1/arch/alpha/kernel/ptrace.c 2009-09-10 15:25:14.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/ptrace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -14,6 +14,7 @@
+ #include <linux/slab.h>
+ #include <linux/security.h>
+ #include <linux/signal.h>
++#include <linux/vs_base.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+diff -NurpP --minimal linux-2.6.32.1/arch/alpha/kernel/systbls.S linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/systbls.S
+--- linux-2.6.32.1/arch/alpha/kernel/systbls.S 2009-03-24 14:18:08.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/systbls.S 2009-12-03 20:04:56.000000000 +0100
+@@ -446,7 +446,7 @@ sys_call_table:
+ .quad sys_stat64 /* 425 */
+ .quad sys_lstat64
+ .quad sys_fstat64
+- .quad sys_ni_syscall /* sys_vserver */
++ .quad sys_vserver /* sys_vserver */
+ .quad sys_ni_syscall /* sys_mbind */
+ .quad sys_ni_syscall /* sys_get_mempolicy */
+ .quad sys_ni_syscall /* sys_set_mempolicy */
+diff -NurpP --minimal linux-2.6.32.1/arch/alpha/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/traps.c
+--- linux-2.6.32.1/arch/alpha/kernel/traps.c 2009-06-11 17:11:46.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -183,7 +183,8 @@ die_if_kernel(char * str, struct pt_regs
+ #ifdef CONFIG_SMP
+ printk("CPU %d ", hard_smp_processor_id());
+ #endif
+- printk("%s(%d): %s %ld\n", current->comm, task_pid_nr(current), str, err);
++ printk("%s(%d[#%u]): %s %ld\n", current->comm,
++ task_pid_nr(current), current->xid, str, err);
+ dik_show_regs(regs, r9_15);
+ add_taint(TAINT_DIE);
+ dik_show_trace((unsigned long *)(regs+1));
+diff -NurpP --minimal linux-2.6.32.1/arch/alpha/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/mm/fault.c
+--- linux-2.6.32.1/arch/alpha/mm/fault.c 2009-09-10 15:25:14.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/alpha/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -193,8 +193,8 @@ do_page_fault(unsigned long address, uns
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk(KERN_ALERT "VM: killing process %s(%d)\n",
+- current->comm, task_pid_nr(current));
++ printk(KERN_ALERT "VM: killing process %s(%d:#%u)\n",
++ current->comm, task_pid_nr(current), current->xid);
+ if (!user_mode(regs))
+ goto no_context;
+ do_group_exit(SIGKILL);
+diff -NurpP --minimal linux-2.6.32.1/arch/arm/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/arm/Kconfig
+--- linux-2.6.32.1/arch/arm/Kconfig 2009-12-03 20:01:49.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/arm/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -1512,6 +1512,8 @@ source "fs/Kconfig"
+
+ source "arch/arm/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/arm/kernel/calls.S linux-2.6.32.1-vs2.3.0.36.27/arch/arm/kernel/calls.S
+--- linux-2.6.32.1/arch/arm/kernel/calls.S 2009-12-03 20:01:50.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/arm/kernel/calls.S 2009-12-03 20:04:56.000000000 +0100
+@@ -322,7 +322,7 @@
+ /* 310 */ CALL(sys_request_key)
+ CALL(sys_keyctl)
+ CALL(ABI(sys_semtimedop, sys_oabi_semtimedop))
+-/* vserver */ CALL(sys_ni_syscall)
++ CALL(sys_vserver)
+ CALL(sys_ioprio_set)
+ /* 315 */ CALL(sys_ioprio_get)
+ CALL(sys_inotify_init)
+diff -NurpP --minimal linux-2.6.32.1/arch/arm/kernel/process.c linux-2.6.32.1-vs2.3.0.36.27/arch/arm/kernel/process.c
+--- linux-2.6.32.1/arch/arm/kernel/process.c 2009-12-03 20:01:50.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/arm/kernel/process.c 2009-12-03 20:04:56.000000000 +0100
+@@ -269,7 +269,8 @@ void __show_regs(struct pt_regs *regs)
+ void show_regs(struct pt_regs * regs)
+ {
+ printk("\n");
+- printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm);
++ printk("Pid: %d[#%u], comm: %20s\n",
++ task_pid_nr(current), current->xid, current->comm);
+ __show_regs(regs);
+ __backtrace();
+ }
+diff -NurpP --minimal linux-2.6.32.1/arch/arm/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/arm/kernel/traps.c
+--- linux-2.6.32.1/arch/arm/kernel/traps.c 2009-12-03 20:01:50.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/arm/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -234,8 +234,8 @@ static void __die(const char *str, int e
+ sysfs_printk_last_file();
+ print_modules();
+ __show_regs(regs);
+- printk(KERN_EMERG "Process %.*s (pid: %d, stack limit = 0x%p)\n",
+- TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk), thread + 1);
++ printk(KERN_EMERG "Process %.*s (pid: %d:#%u, stack limit = 0x%p)\n",
++ TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk), tsk->xid, thread + 1);
+
+ if (!user_mode(regs) || in_interrupt()) {
+ dump_mem(KERN_EMERG, "Stack: ", regs->ARM_sp,
+diff -NurpP --minimal linux-2.6.32.1/arch/avr32/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/avr32/mm/fault.c
+--- linux-2.6.32.1/arch/avr32/mm/fault.c 2009-09-10 15:25:20.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/avr32/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -216,7 +216,8 @@ out_of_memory:
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk("VM: Killing process %s\n", tsk->comm);
++ printk("VM: Killing process %s(%d:#%u)\n",
++ tsk->comm, task_pid_nr(tsk), tsk->xid);
+ if (user_mode(regs))
+ do_group_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/cris/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/cris/Kconfig
+--- linux-2.6.32.1/arch/cris/Kconfig 2009-06-11 17:11:56.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/cris/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -685,6 +685,8 @@ source "drivers/staging/Kconfig"
+
+ source "arch/cris/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/cris/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/cris/mm/fault.c
+--- linux-2.6.32.1/arch/cris/mm/fault.c 2009-12-03 20:01:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/cris/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -245,7 +245,8 @@ do_page_fault(unsigned long address, str
+
+ out_of_memory:
+ up_read(&mm->mmap_sem);
+- printk("VM: killing process %s\n", tsk->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ tsk->comm, task_pid_nr(tsk), tsk->xid);
+ if (user_mode(regs))
+ do_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/frv/kernel/kernel_thread.S linux-2.6.32.1-vs2.3.0.36.27/arch/frv/kernel/kernel_thread.S
+--- linux-2.6.32.1/arch/frv/kernel/kernel_thread.S 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/frv/kernel/kernel_thread.S 2009-12-03 20:04:56.000000000 +0100
+@@ -37,7 +37,7 @@ kernel_thread:
+
+ # start by forking the current process, but with shared VM
+ setlos.p #__NR_clone,gr7 ; syscall number
+- ori gr10,#CLONE_VM,gr8 ; first syscall arg [clone_flags]
++ ori gr10,#CLONE_KT,gr8 ; first syscall arg [clone_flags]
+ sethi.p #0xe4e4,gr9 ; second syscall arg [newsp]
+ setlo #0xe4e4,gr9
+ setlos.p #0,gr10 ; third syscall arg [parent_tidptr]
+diff -NurpP --minimal linux-2.6.32.1/arch/frv/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/frv/mm/fault.c
+--- linux-2.6.32.1/arch/frv/mm/fault.c 2009-09-10 15:25:22.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/frv/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -257,7 +257,8 @@ asmlinkage void do_page_fault(int datamm
+ */
+ out_of_memory:
+ up_read(&mm->mmap_sem);
+- printk("VM: killing process %s\n", current->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ current->comm, task_pid_nr(current), current->xid);
+ if (user_mode(__frame))
+ do_group_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/h8300/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/h8300/Kconfig
+--- linux-2.6.32.1/arch/h8300/Kconfig 2009-03-24 14:18:24.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/h8300/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -226,6 +226,8 @@ source "fs/Kconfig"
+
+ source "arch/h8300/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/ia64/ia32/ia32_entry.S linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/ia32/ia32_entry.S
+--- linux-2.6.32.1/arch/ia64/ia32/ia32_entry.S 2009-06-11 17:11:57.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/ia32/ia32_entry.S 2009-12-03 20:04:56.000000000 +0100
+@@ -451,7 +451,7 @@ ia32_syscall_table:
+ data8 sys_tgkill /* 270 */
+ data8 compat_sys_utimes
+ data8 sys32_fadvise64_64
+- data8 sys_ni_syscall
++ data8 sys32_vserver
+ data8 sys_ni_syscall
+ data8 sys_ni_syscall /* 275 */
+ data8 sys_ni_syscall
+diff -NurpP --minimal linux-2.6.32.1/arch/ia64/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/Kconfig
+--- linux-2.6.32.1/arch/ia64/Kconfig 2009-12-03 20:01:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -685,6 +685,8 @@ source "fs/Kconfig"
+
+ source "arch/ia64/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/ia64/kernel/entry.S linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/entry.S
+--- linux-2.6.32.1/arch/ia64/kernel/entry.S 2009-09-10 15:25:22.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/entry.S 2009-12-03 20:04:56.000000000 +0100
+@@ -1753,7 +1753,7 @@ sys_call_table:
+ data8 sys_mq_notify
+ data8 sys_mq_getsetattr
+ data8 sys_kexec_load
+- data8 sys_ni_syscall // reserved for vserver
++ data8 sys_vserver
+ data8 sys_waitid // 1270
+ data8 sys_add_key
+ data8 sys_request_key
+diff -NurpP --minimal linux-2.6.32.1/arch/ia64/kernel/perfmon.c linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/perfmon.c
+--- linux-2.6.32.1/arch/ia64/kernel/perfmon.c 2009-09-10 15:25:22.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/perfmon.c 2009-12-03 20:04:56.000000000 +0100
+@@ -41,6 +41,7 @@
+ #include <linux/rcupdate.h>
+ #include <linux/completion.h>
+ #include <linux/tracehook.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/errno.h>
+ #include <asm/intrinsics.h>
+@@ -2372,7 +2373,7 @@ pfm_smpl_buffer_alloc(struct task_struct
+ */
+ insert_vm_struct(mm, vma);
+
+- mm->total_vm += size >> PAGE_SHIFT;
++ vx_vmpages_add(mm, size >> PAGE_SHIFT);
+ vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file,
+ vma_pages(vma));
+ up_write(&task->mm->mmap_sem);
+diff -NurpP --minimal linux-2.6.32.1/arch/ia64/kernel/process.c linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/process.c
+--- linux-2.6.32.1/arch/ia64/kernel/process.c 2009-12-03 20:01:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/process.c 2009-12-03 20:04:56.000000000 +0100
+@@ -110,8 +110,8 @@ show_regs (struct pt_regs *regs)
+ unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri;
+
+ print_modules();
+- printk("\nPid: %d, CPU %d, comm: %20s\n", task_pid_nr(current),
+- smp_processor_id(), current->comm);
++ printk("\nPid: %d[#%u], CPU %d, comm: %20s\n", task_pid_nr(current),
++ current->xid, smp_processor_id(), current->comm);
+ printk("psr : %016lx ifs : %016lx ip : [<%016lx>] %s (%s)\n",
+ regs->cr_ipsr, regs->cr_ifs, ip, print_tainted(),
+ init_utsname()->release);
+diff -NurpP --minimal linux-2.6.32.1/arch/ia64/kernel/ptrace.c linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/ptrace.c
+--- linux-2.6.32.1/arch/ia64/kernel/ptrace.c 2009-09-10 15:25:22.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/ptrace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -22,6 +22,7 @@
+ #include <linux/regset.h>
+ #include <linux/elf.h>
+ #include <linux/tracehook.h>
++#include <linux/vs_base.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/processor.h>
+diff -NurpP --minimal linux-2.6.32.1/arch/ia64/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/traps.c
+--- linux-2.6.32.1/arch/ia64/kernel/traps.c 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -60,8 +60,9 @@ die (const char *str, struct pt_regs *re
+ put_cpu();
+
+ if (++die.lock_owner_depth < 3) {
+- printk("%s[%d]: %s %ld [%d]\n",
+- current->comm, task_pid_nr(current), str, err, ++die_counter);
++ printk("%s[%d[#%u]]: %s %ld [%d]\n",
++ current->comm, task_pid_nr(current), current->xid,
++ str, err, ++die_counter);
+ if (notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV)
+ != NOTIFY_STOP)
+ show_regs(regs);
+@@ -324,8 +325,9 @@ handle_fpu_swa (int fp_fault, struct pt_
+ if ((last.count & 15) < 5 && (ia64_fetchadd(1, &last.count, acq) & 15) < 5) {
+ last.time = current_jiffies + 5 * HZ;
+ printk(KERN_WARNING
+- "%s(%d): floating-point assist fault at ip %016lx, isr %016lx\n",
+- current->comm, task_pid_nr(current), regs->cr_iip + ia64_psr(regs)->ri, isr);
++ "%s(%d[#%u]): floating-point assist fault at ip %016lx, isr %016lx\n",
++ current->comm, task_pid_nr(current), current->xid,
++ regs->cr_iip + ia64_psr(regs)->ri, isr);
+ }
+ }
+ }
+diff -NurpP --minimal linux-2.6.32.1/arch/ia64/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/mm/fault.c
+--- linux-2.6.32.1/arch/ia64/mm/fault.c 2009-09-10 15:25:23.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/ia64/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -10,6 +10,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/kprobes.h>
+ #include <linux/kdebug.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/processor.h>
+@@ -281,7 +282,8 @@ ia64_do_page_fault (unsigned long addres
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk(KERN_CRIT "VM: killing process %s\n", current->comm);
++ printk(KERN_CRIT "VM: killing process %s(%d:#%u)\n",
++ current->comm, task_pid_nr(current), current->xid);
+ if (user_mode(regs))
+ do_group_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/m32r/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/m32r/kernel/traps.c
+--- linux-2.6.32.1/arch/m32r/kernel/traps.c 2009-12-03 20:01:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/m32r/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -196,8 +196,9 @@ static void show_registers(struct pt_reg
+ } else {
+ printk("SPI: %08lx\n", sp);
+ }
+- printk("Process %s (pid: %d, process nr: %d, stackpage=%08lx)",
+- current->comm, task_pid_nr(current), 0xffff & i, 4096+(unsigned long)current);
++ printk("Process %s (pid: %d[#%u], process nr: %d, stackpage=%08lx)",
++ current->comm, task_pid_nr(current), current->xid,
++ 0xffff & i, 4096+(unsigned long)current);
+
+ /*
+ * When in-kernel, we also print out the stack and code at the
+diff -NurpP --minimal linux-2.6.32.1/arch/m32r/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/m32r/mm/fault.c
+--- linux-2.6.32.1/arch/m32r/mm/fault.c 2009-09-10 15:25:23.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/m32r/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -276,7 +276,8 @@ out_of_memory:
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk("VM: killing process %s\n", tsk->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ tsk->comm, task_pid_nr(tsk), tsk->xid);
+ if (error_code & ACE_USERMODE)
+ do_group_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/m68k/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/m68k/Kconfig
+--- linux-2.6.32.1/arch/m68k/Kconfig 2009-12-03 20:01:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/m68k/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -622,6 +622,8 @@ source "fs/Kconfig"
+
+ source "arch/m68k/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/m68k/kernel/ptrace.c linux-2.6.32.1-vs2.3.0.36.27/arch/m68k/kernel/ptrace.c
+--- linux-2.6.32.1/arch/m68k/kernel/ptrace.c 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/m68k/kernel/ptrace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -18,6 +18,7 @@
+ #include <linux/ptrace.h>
+ #include <linux/user.h>
+ #include <linux/signal.h>
++#include <linux/vs_base.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/page.h>
+@@ -269,6 +270,8 @@ long arch_ptrace(struct task_struct *chi
+ ret = ptrace_request(child, request, addr, data);
+ break;
+ }
++ if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
++ goto out_tsk;
+
+ return ret;
+ out_eio:
+diff -NurpP --minimal linux-2.6.32.1/arch/m68k/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/m68k/kernel/traps.c
+--- linux-2.6.32.1/arch/m68k/kernel/traps.c 2009-09-10 15:25:23.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/m68k/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -906,8 +906,8 @@ void show_registers(struct pt_regs *regs
+ printk("d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n",
+ regs->d4, regs->d5, regs->a0, regs->a1);
+
+- printk("Process %s (pid: %d, task=%p)\n",
+- current->comm, task_pid_nr(current), current);
++ printk("Process %s (pid: %d[#%u], task=%p)\n",
++ current->comm, task_pid_nr(current), current->xid, current);
+ addr = (unsigned long)&fp->un;
+ printk("Frame format=%X ", regs->format);
+ switch (regs->format) {
+diff -NurpP --minimal linux-2.6.32.1/arch/m68k/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/m68k/mm/fault.c
+--- linux-2.6.32.1/arch/m68k/mm/fault.c 2009-09-10 15:25:23.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/m68k/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -186,7 +186,8 @@ out_of_memory:
+ goto survive;
+ }
+
+- printk("VM: killing process %s\n", current->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ current->comm, task_pid_nr(current), current->xid);
+ if (user_mode(regs))
+ do_group_exit(SIGKILL);
+
+diff -NurpP --minimal linux-2.6.32.1/arch/m68knommu/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/m68knommu/Kconfig
+--- linux-2.6.32.1/arch/m68knommu/Kconfig 2009-12-03 20:01:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/m68knommu/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -727,6 +727,8 @@ source "fs/Kconfig"
+
+ source "arch/m68knommu/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/m68knommu/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/m68knommu/kernel/traps.c
+--- linux-2.6.32.1/arch/m68knommu/kernel/traps.c 2009-09-10 15:25:23.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/m68knommu/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -78,8 +78,9 @@ void die_if_kernel(char *str, struct pt_
+ printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n",
+ fp->d4, fp->d5, fp->a0, fp->a1);
+
+- printk(KERN_EMERG "Process %s (pid: %d, stackpage=%08lx)\n",
+- current->comm, current->pid, PAGE_SIZE+(unsigned long)current);
++ printk(KERN_EMERG "Process %s (pid: %d[#%u], stackpage=%08lx)\n",
++ current->comm, task_pid_nr(current), current->xid,
++ PAGE_SIZE+(unsigned long)current);
+ show_stack(NULL, (unsigned long *)(fp + 1));
+ add_taint(TAINT_DIE);
+ do_exit(SIGSEGV);
+diff -NurpP --minimal linux-2.6.32.1/arch/microblaze/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/microblaze/mm/fault.c
+--- linux-2.6.32.1/arch/microblaze/mm/fault.c 2009-09-10 15:25:24.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/microblaze/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -279,7 +279,8 @@ out_of_memory:
+ goto survive;
+ }
+ up_read(&mm->mmap_sem);
+- printk(KERN_WARNING "VM: killing process %s\n", current->comm);
++ printk(KERN_WARNING "VM: killing process %s(%d:#%u)\n",
++ current->comm, task_pid_nr(current), current->xid);
+ if (user_mode(regs))
+ do_exit(SIGKILL);
+ bad_page_fault(regs, address, SIGKILL);
+diff -NurpP --minimal linux-2.6.32.1/arch/mips/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/mips/Kconfig
+--- linux-2.6.32.1/arch/mips/Kconfig 2009-12-03 20:01:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/mips/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -2188,6 +2188,8 @@ source "fs/Kconfig"
+
+ source "arch/mips/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/mips/kernel/ptrace.c linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/ptrace.c
+--- linux-2.6.32.1/arch/mips/kernel/ptrace.c 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/ptrace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -25,6 +25,7 @@
+ #include <linux/security.h>
+ #include <linux/audit.h>
+ #include <linux/seccomp.h>
++#include <linux/vs_base.h>
+
+ #include <asm/byteorder.h>
+ #include <asm/cpu.h>
+@@ -259,6 +260,9 @@ long arch_ptrace(struct task_struct *chi
+ {
+ int ret;
+
++ if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
++ goto out;
++
+ switch (request) {
+ /* when I and D space are separate, these will need to be fixed. */
+ case PTRACE_PEEKTEXT: /* read word at location addr. */
+diff -NurpP --minimal linux-2.6.32.1/arch/mips/kernel/scall32-o32.S linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/scall32-o32.S
+--- linux-2.6.32.1/arch/mips/kernel/scall32-o32.S 2009-12-03 20:01:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/scall32-o32.S 2009-12-03 20:04:56.000000000 +0100
+@@ -525,7 +525,7 @@ einval: li v0, -ENOSYS
+ sys sys_mq_timedreceive 5
+ sys sys_mq_notify 2 /* 4275 */
+ sys sys_mq_getsetattr 3
+- sys sys_ni_syscall 0 /* sys_vserver */
++ sys sys_vserver 3
+ sys sys_waitid 5
+ sys sys_ni_syscall 0 /* available, was setaltroot */
+ sys sys_add_key 5 /* 4280 */
+diff -NurpP --minimal linux-2.6.32.1/arch/mips/kernel/scall64-64.S linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/scall64-64.S
+--- linux-2.6.32.1/arch/mips/kernel/scall64-64.S 2009-12-03 20:01:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/scall64-64.S 2009-12-03 20:04:56.000000000 +0100
+@@ -362,7 +362,7 @@ sys_call_table:
+ PTR sys_mq_timedreceive
+ PTR sys_mq_notify
+ PTR sys_mq_getsetattr /* 5235 */
+- PTR sys_ni_syscall /* sys_vserver */
++ PTR sys_vserver
+ PTR sys_waitid
+ PTR sys_ni_syscall /* available, was setaltroot */
+ PTR sys_add_key
+diff -NurpP --minimal linux-2.6.32.1/arch/mips/kernel/scall64-n32.S linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/scall64-n32.S
+--- linux-2.6.32.1/arch/mips/kernel/scall64-n32.S 2009-12-03 20:01:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/scall64-n32.S 2009-12-03 20:04:56.000000000 +0100
+@@ -360,7 +360,7 @@ EXPORT(sysn32_call_table)
+ PTR compat_sys_mq_timedreceive
+ PTR compat_sys_mq_notify
+ PTR compat_sys_mq_getsetattr
+- PTR sys_ni_syscall /* 6240, sys_vserver */
++ PTR sys32_vserver /* 6240 */
+ PTR compat_sys_waitid
+ PTR sys_ni_syscall /* available, was setaltroot */
+ PTR sys_add_key
+diff -NurpP --minimal linux-2.6.32.1/arch/mips/kernel/scall64-o32.S linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/scall64-o32.S
+--- linux-2.6.32.1/arch/mips/kernel/scall64-o32.S 2009-12-03 20:01:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/scall64-o32.S 2009-12-03 20:04:56.000000000 +0100
+@@ -480,7 +480,7 @@ sys_call_table:
+ PTR compat_sys_mq_timedreceive
+ PTR compat_sys_mq_notify /* 4275 */
+ PTR compat_sys_mq_getsetattr
+- PTR sys_ni_syscall /* sys_vserver */
++ PTR sys32_vserver
+ PTR sys_32_waitid
+ PTR sys_ni_syscall /* available, was setaltroot */
+ PTR sys_add_key /* 4280 */
+diff -NurpP --minimal linux-2.6.32.1/arch/mips/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/traps.c
+--- linux-2.6.32.1/arch/mips/kernel/traps.c 2009-12-03 20:01:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/mips/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -335,9 +335,10 @@ void show_registers(const struct pt_regs
+
+ __show_regs(regs);
+ print_modules();
+- printk("Process %s (pid: %d, threadinfo=%p, task=%p, tls=%0*lx)\n",
+- current->comm, current->pid, current_thread_info(), current,
+- field, current_thread_info()->tp_value);
++ printk("Process %s (pid: %d:#%u, threadinfo=%p, task=%p, tls=%0*lx)\n",
++ current->comm, task_pid_nr(current), current->xid,
++ current_thread_info(), current,
++ field, current_thread_info()->tp_value);
+ if (cpu_has_userlocal) {
+ unsigned long tls;
+
+diff -NurpP --minimal linux-2.6.32.1/arch/mn10300/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/mn10300/mm/fault.c
+--- linux-2.6.32.1/arch/mn10300/mm/fault.c 2009-09-10 15:25:39.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/mn10300/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -339,7 +339,8 @@ no_context:
+ out_of_memory:
+ up_read(&mm->mmap_sem);
+ monitor_signal(regs);
+- printk(KERN_ALERT "VM: killing process %s\n", tsk->comm);
++ printk(KERN_ALERT "VM: killing process %s(%d:#%u)\n",
++ tsk->comm, task_pid_nr(tsk), tsk->xid);
+ if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR)
+ do_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/parisc/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/parisc/Kconfig
+--- linux-2.6.32.1/arch/parisc/Kconfig 2009-12-03 20:02:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/parisc/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -294,6 +294,8 @@ source "fs/Kconfig"
+
+ source "arch/parisc/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/parisc/kernel/syscall_table.S linux-2.6.32.1-vs2.3.0.36.27/arch/parisc/kernel/syscall_table.S
+--- linux-2.6.32.1/arch/parisc/kernel/syscall_table.S 2009-12-03 20:02:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/parisc/kernel/syscall_table.S 2009-12-03 20:04:56.000000000 +0100
+@@ -361,7 +361,7 @@
+ ENTRY_COMP(mbind) /* 260 */
+ ENTRY_COMP(get_mempolicy)
+ ENTRY_COMP(set_mempolicy)
+- ENTRY_SAME(ni_syscall) /* 263: reserved for vserver */
++ ENTRY_DIFF(vserver)
+ ENTRY_SAME(add_key)
+ ENTRY_SAME(request_key) /* 265 */
+ ENTRY_SAME(keyctl)
+diff -NurpP --minimal linux-2.6.32.1/arch/parisc/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/parisc/kernel/traps.c
+--- linux-2.6.32.1/arch/parisc/kernel/traps.c 2009-09-10 15:25:40.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/parisc/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -236,8 +236,9 @@ void die_if_kernel(char *str, struct pt_
+ if (err == 0)
+ return; /* STFU */
+
+- printk(KERN_CRIT "%s (pid %d): %s (code %ld) at " RFMT "\n",
+- current->comm, task_pid_nr(current), str, err, regs->iaoq[0]);
++ printk(KERN_CRIT "%s (pid %d:#%u): %s (code %ld) at " RFMT "\n",
++ current->comm, task_pid_nr(current), current->xid,
++ str, err, regs->iaoq[0]);
+ #ifdef PRINT_USER_FAULTS
+ /* XXX for debugging only */
+ show_regs(regs);
+@@ -270,8 +271,8 @@ void die_if_kernel(char *str, struct pt_
+ pdc_console_restart();
+
+ if (err)
+- printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
+- current->comm, task_pid_nr(current), str, err);
++ printk(KERN_CRIT "%s (pid %d:#%u): %s (code %ld)\n",
++ current->comm, task_pid_nr(current), current->xid, str, err);
+
+ /* Wot's wrong wif bein' racy? */
+ if (current->thread.flags & PARISC_KERNEL_DEATH) {
+diff -NurpP --minimal linux-2.6.32.1/arch/parisc/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/parisc/mm/fault.c
+--- linux-2.6.32.1/arch/parisc/mm/fault.c 2009-09-10 15:25:40.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/parisc/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -237,8 +237,9 @@ bad_area:
+
+ #ifdef PRINT_USER_FAULTS
+ printk(KERN_DEBUG "\n");
+- printk(KERN_DEBUG "do_page_fault() pid=%d command='%s' type=%lu address=0x%08lx\n",
+- task_pid_nr(tsk), tsk->comm, code, address);
++ printk(KERN_DEBUG "do_page_fault() pid=%d:#%u "
++ "command='%s' type=%lu address=0x%08lx\n",
++ task_pid_nr(tsk), tsk->xid, tsk->comm, code, address);
+ if (vma) {
+ printk(KERN_DEBUG "vm_start = 0x%08lx, vm_end = 0x%08lx\n",
+ vma->vm_start, vma->vm_end);
+@@ -264,7 +265,8 @@ no_context:
+
+ out_of_memory:
+ up_read(&mm->mmap_sem);
+- printk(KERN_CRIT "VM: killing process %s\n", current->comm);
++ printk(KERN_CRIT "VM: killing process %s(%d:#%u)\n",
++ current->comm, current->pid, current->xid);
+ if (user_mode(regs))
+ do_group_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/powerpc/include/asm/unistd.h linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/include/asm/unistd.h
+--- linux-2.6.32.1/arch/powerpc/include/asm/unistd.h 2009-12-03 20:02:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/include/asm/unistd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -275,7 +275,7 @@
+ #endif
+ #define __NR_rtas 255
+ #define __NR_sys_debug_setcontext 256
+-/* Number 257 is reserved for vserver */
++#define __NR_vserver 257
+ #define __NR_migrate_pages 258
+ #define __NR_mbind 259
+ #define __NR_get_mempolicy 260
+diff -NurpP --minimal linux-2.6.32.1/arch/powerpc/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/Kconfig
+--- linux-2.6.32.1/arch/powerpc/Kconfig 2009-12-03 20:02:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -943,6 +943,8 @@ source "lib/Kconfig"
+
+ source "arch/powerpc/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ config KEYS_COMPAT
+diff -NurpP --minimal linux-2.6.32.1/arch/powerpc/kernel/irq.c linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/kernel/irq.c
+--- linux-2.6.32.1/arch/powerpc/kernel/irq.c 2009-12-03 20:02:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/kernel/irq.c 2009-12-03 20:04:56.000000000 +0100
+@@ -54,6 +54,7 @@
+ #include <linux/pci.h>
+ #include <linux/debugfs.h>
+ #include <linux/perf_event.h>
++// #include <linux/vs_context.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/system.h>
+diff -NurpP --minimal linux-2.6.32.1/arch/powerpc/kernel/process.c linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/kernel/process.c
+--- linux-2.6.32.1/arch/powerpc/kernel/process.c 2009-12-03 20:02:02.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/kernel/process.c 2009-12-03 20:04:56.000000000 +0100
+@@ -519,8 +519,9 @@ void show_regs(struct pt_regs * regs)
+ #else
+ printk("DAR: "REG", DSISR: "REG"\n", regs->dar, regs->dsisr);
+ #endif
+- printk("TASK = %p[%d] '%s' THREAD: %p",
+- current, task_pid_nr(current), current->comm, task_thread_info(current));
++ printk("TASK = %p[%d,#%u] '%s' THREAD: %p",
++ current, task_pid_nr(current), current->xid,
++ current->comm, task_thread_info(current));
+
+ #ifdef CONFIG_SMP
+ printk(" CPU: %d", raw_smp_processor_id());
+diff -NurpP --minimal linux-2.6.32.1/arch/powerpc/kernel/traps.c linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/kernel/traps.c
+--- linux-2.6.32.1/arch/powerpc/kernel/traps.c 2009-09-10 15:25:41.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/kernel/traps.c 2009-12-03 20:04:56.000000000 +0100
+@@ -931,8 +931,9 @@ void nonrecoverable_exception(struct pt_
+
+ void trace_syscall(struct pt_regs *regs)
+ {
+- printk("Task: %p(%d), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld %s\n",
+- current, task_pid_nr(current), regs->nip, regs->link, regs->gpr[0],
++ printk("Task: %p(%d[#%u]), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld %s\n",
++ current, task_pid_nr(current), current->xid,
++ regs->nip, regs->link, regs->gpr[0],
+ regs->ccr&0x10000000?"Error=":"", regs->gpr[3], print_tainted());
+ }
+
+diff -NurpP --minimal linux-2.6.32.1/arch/powerpc/kernel/vdso.c linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/kernel/vdso.c
+--- linux-2.6.32.1/arch/powerpc/kernel/vdso.c 2009-12-03 20:02:02.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/kernel/vdso.c 2009-12-03 20:04:56.000000000 +0100
+@@ -23,6 +23,7 @@
+ #include <linux/security.h>
+ #include <linux/bootmem.h>
+ #include <linux/lmb.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/system.h>
+diff -NurpP --minimal linux-2.6.32.1/arch/powerpc/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/mm/fault.c
+--- linux-2.6.32.1/arch/powerpc/mm/fault.c 2009-12-03 20:02:02.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/powerpc/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -358,7 +358,8 @@ out_of_memory:
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk("VM: killing process %s\n", current->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ current->comm, current->pid, current->xid);
+ if (user_mode(regs))
+ do_group_exit(SIGKILL);
+ return SIGKILL;
+diff -NurpP --minimal linux-2.6.32.1/arch/s390/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/s390/Kconfig
+--- linux-2.6.32.1/arch/s390/Kconfig 2009-12-03 20:02:03.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/s390/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -616,6 +616,8 @@ source "fs/Kconfig"
+
+ source "arch/s390/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/s390/kernel/ptrace.c linux-2.6.32.1-vs2.3.0.36.27/arch/s390/kernel/ptrace.c
+--- linux-2.6.32.1/arch/s390/kernel/ptrace.c 2009-12-03 20:02:03.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/s390/kernel/ptrace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -36,6 +36,7 @@
+ #include <linux/regset.h>
+ #include <linux/tracehook.h>
+ #include <linux/seccomp.h>
++#include <linux/vs_base.h>
+ #include <trace/syscall.h>
+ #include <asm/compat.h>
+ #include <asm/segment.h>
+diff -NurpP --minimal linux-2.6.32.1/arch/s390/kernel/syscalls.S linux-2.6.32.1-vs2.3.0.36.27/arch/s390/kernel/syscalls.S
+--- linux-2.6.32.1/arch/s390/kernel/syscalls.S 2009-12-03 20:02:03.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/s390/kernel/syscalls.S 2009-12-03 20:04:56.000000000 +0100
+@@ -271,7 +271,7 @@ SYSCALL(sys_clock_settime,sys_clock_sett
+ SYSCALL(sys_clock_gettime,sys_clock_gettime,sys32_clock_gettime_wrapper) /* 260 */
+ SYSCALL(sys_clock_getres,sys_clock_getres,sys32_clock_getres_wrapper)
+ SYSCALL(sys_clock_nanosleep,sys_clock_nanosleep,sys32_clock_nanosleep_wrapper)
+-NI_SYSCALL /* reserved for vserver */
++SYSCALL(sys_vserver,sys_vserver,sys32_vserver)
+ SYSCALL(sys_s390_fadvise64_64,sys_ni_syscall,sys32_fadvise64_64_wrapper)
+ SYSCALL(sys_statfs64,sys_statfs64,compat_sys_statfs64_wrapper)
+ SYSCALL(sys_fstatfs64,sys_fstatfs64,compat_sys_fstatfs64_wrapper)
+diff -NurpP --minimal linux-2.6.32.1/arch/s390/lib/uaccess_pt.c linux-2.6.32.1-vs2.3.0.36.27/arch/s390/lib/uaccess_pt.c
+--- linux-2.6.32.1/arch/s390/lib/uaccess_pt.c 2009-09-10 15:25:43.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/s390/lib/uaccess_pt.c 2009-12-03 20:04:56.000000000 +0100
+@@ -90,7 +90,8 @@ out_of_memory:
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk("VM: killing process %s\n", current->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ current->comm, task_pid_nr(current), current->xid);
+ return ret;
+
+ out_sigbus:
+diff -NurpP --minimal linux-2.6.32.1/arch/sh/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/sh/Kconfig
+--- linux-2.6.32.1/arch/sh/Kconfig 2009-12-03 20:02:03.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sh/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -853,6 +853,8 @@ source "fs/Kconfig"
+
+ source "arch/sh/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/sh/kernel/irq.c linux-2.6.32.1-vs2.3.0.36.27/arch/sh/kernel/irq.c
+--- linux-2.6.32.1/arch/sh/kernel/irq.c 2009-12-03 20:02:10.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sh/kernel/irq.c 2009-12-03 20:04:56.000000000 +0100
+@@ -12,6 +12,7 @@
+ #include <linux/kernel_stat.h>
+ #include <linux/seq_file.h>
+ #include <linux/ftrace.h>
++// #include <linux/vs_context.h>
+ #include <asm/processor.h>
+ #include <asm/machvec.h>
+ #include <asm/uaccess.h>
+diff -NurpP --minimal linux-2.6.32.1/arch/sh/kernel/vsyscall/vsyscall.c linux-2.6.32.1-vs2.3.0.36.27/arch/sh/kernel/vsyscall/vsyscall.c
+--- linux-2.6.32.1/arch/sh/kernel/vsyscall/vsyscall.c 2009-03-24 14:18:42.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sh/kernel/vsyscall/vsyscall.c 2009-12-03 20:04:56.000000000 +0100
+@@ -19,6 +19,7 @@
+ #include <linux/elf.h>
+ #include <linux/sched.h>
+ #include <linux/err.h>
++#include <linux/vs_memory.h>
+
+ /*
+ * Should the kernel map a VDSO page into processes and pass its
+diff -NurpP --minimal linux-2.6.32.1/arch/sh/mm/fault_32.c linux-2.6.32.1-vs2.3.0.36.27/arch/sh/mm/fault_32.c
+--- linux-2.6.32.1/arch/sh/mm/fault_32.c 2009-12-03 20:02:14.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sh/mm/fault_32.c 2009-12-03 20:04:56.000000000 +0100
+@@ -292,7 +292,8 @@ out_of_memory:
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk("VM: killing process %s\n", tsk->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ tsk->comm, task_pid_nr(tsk), tsk->xid);
+ if (user_mode(regs))
+ do_group_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/sh/mm/tlbflush_64.c linux-2.6.32.1-vs2.3.0.36.27/arch/sh/mm/tlbflush_64.c
+--- linux-2.6.32.1/arch/sh/mm/tlbflush_64.c 2009-12-03 20:02:14.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sh/mm/tlbflush_64.c 2009-12-03 20:04:56.000000000 +0100
+@@ -306,7 +306,8 @@ out_of_memory:
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk("VM: killing process %s\n", tsk->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ tsk->comm, task_pid_nr(tsk), tsk->xid);
+ if (user_mode(regs))
+ do_group_exit(SIGKILL);
+ goto no_context;
+diff -NurpP --minimal linux-2.6.32.1/arch/sparc/include/asm/tlb_64.h linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/include/asm/tlb_64.h
+--- linux-2.6.32.1/arch/sparc/include/asm/tlb_64.h 2009-09-10 15:25:45.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/include/asm/tlb_64.h 2009-12-03 20:04:56.000000000 +0100
+@@ -3,6 +3,7 @@
+
+ #include <linux/swap.h>
+ #include <linux/pagemap.h>
++#include <linux/vs_memory.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
+ #include <asm/mmu_context.h>
+diff -NurpP --minimal linux-2.6.32.1/arch/sparc/include/asm/unistd.h linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/include/asm/unistd.h
+--- linux-2.6.32.1/arch/sparc/include/asm/unistd.h 2009-12-03 20:02:15.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/include/asm/unistd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -335,7 +335,7 @@
+ #define __NR_timer_getoverrun 264
+ #define __NR_timer_delete 265
+ #define __NR_timer_create 266
+-/* #define __NR_vserver 267 Reserved for VSERVER */
++#define __NR_vserver 267
+ #define __NR_io_setup 268
+ #define __NR_io_destroy 269
+ #define __NR_io_submit 270
+diff -NurpP --minimal linux-2.6.32.1/arch/sparc/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/Kconfig
+--- linux-2.6.32.1/arch/sparc/Kconfig 2009-12-03 20:02:14.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -550,6 +550,8 @@ source "fs/Kconfig"
+
+ source "arch/sparc/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/sparc/kernel/systbls_32.S linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/kernel/systbls_32.S
+--- linux-2.6.32.1/arch/sparc/kernel/systbls_32.S 2009-12-03 20:02:15.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/kernel/systbls_32.S 2009-12-03 20:04:56.000000000 +0100
+@@ -70,7 +70,7 @@ sys_call_table:
+ /*250*/ .long sparc_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
+ /*255*/ .long sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
+ /*260*/ .long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
+-/*265*/ .long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy
++/*265*/ .long sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy
+ /*270*/ .long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
+ /*275*/ .long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
+ /*280*/ .long sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat
+diff -NurpP --minimal linux-2.6.32.1/arch/sparc/kernel/systbls_64.S linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/kernel/systbls_64.S
+--- linux-2.6.32.1/arch/sparc/kernel/systbls_64.S 2009-12-03 20:02:15.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/sparc/kernel/systbls_64.S 2009-12-03 20:04:56.000000000 +0100
+@@ -71,7 +71,7 @@ sys_call_table32:
+ /*250*/ .word sys32_mremap, sys32_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl
+ .word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
+ /*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
+- .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
++ .word sys_timer_delete, compat_sys_timer_create, sys32_vserver, compat_sys_io_setup, sys_io_destroy
+ /*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
+ .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
+ /*280*/ .word sys32_tee, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat
+@@ -146,7 +146,7 @@ sys_call_table:
+ /*250*/ .word sys_64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
+ .word sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
+ /*260*/ .word sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
+- .word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy
++ .word sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy
+ /*270*/ .word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
+ .word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
+ /*280*/ .word sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat
+diff -NurpP --minimal linux-2.6.32.1/arch/x86/ia32/ia32entry.S linux-2.6.32.1-vs2.3.0.36.27/arch/x86/ia32/ia32entry.S
+--- linux-2.6.32.1/arch/x86/ia32/ia32entry.S 2009-12-03 20:02:15.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/x86/ia32/ia32entry.S 2009-12-03 20:04:56.000000000 +0100
+@@ -777,7 +777,7 @@ ia32_sys_call_table:
+ .quad sys_tgkill /* 270 */
+ .quad compat_sys_utimes
+ .quad sys32_fadvise64_64
+- .quad quiet_ni_syscall /* sys_vserver */
++ .quad sys32_vserver
+ .quad sys_mbind
+ .quad compat_sys_get_mempolicy /* 275 */
+ .quad sys_set_mempolicy
+diff -NurpP --minimal linux-2.6.32.1/arch/x86/include/asm/unistd_64.h linux-2.6.32.1-vs2.3.0.36.27/arch/x86/include/asm/unistd_64.h
+--- linux-2.6.32.1/arch/x86/include/asm/unistd_64.h 2009-12-03 20:02:16.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/x86/include/asm/unistd_64.h 2009-12-03 20:04:56.000000000 +0100
+@@ -535,7 +535,7 @@ __SYSCALL(__NR_tgkill, sys_tgkill)
+ #define __NR_utimes 235
+ __SYSCALL(__NR_utimes, sys_utimes)
+ #define __NR_vserver 236
+-__SYSCALL(__NR_vserver, sys_ni_syscall)
++__SYSCALL(__NR_vserver, sys_vserver)
+ #define __NR_mbind 237
+ __SYSCALL(__NR_mbind, sys_mbind)
+ #define __NR_set_mempolicy 238
+diff -NurpP --minimal linux-2.6.32.1/arch/x86/Kconfig linux-2.6.32.1-vs2.3.0.36.27/arch/x86/Kconfig
+--- linux-2.6.32.1/arch/x86/Kconfig 2009-12-03 20:02:15.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/x86/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -2085,6 +2085,8 @@ source "fs/Kconfig"
+
+ source "arch/x86/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-2.6.32.1/arch/x86/kernel/syscall_table_32.S linux-2.6.32.1-vs2.3.0.36.27/arch/x86/kernel/syscall_table_32.S
+--- linux-2.6.32.1/arch/x86/kernel/syscall_table_32.S 2009-12-03 20:02:16.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/x86/kernel/syscall_table_32.S 2009-12-03 20:04:56.000000000 +0100
+@@ -272,7 +272,7 @@ ENTRY(sys_call_table)
+ .long sys_tgkill /* 270 */
+ .long sys_utimes
+ .long sys_fadvise64_64
+- .long sys_ni_syscall /* sys_vserver */
++ .long sys_vserver
+ .long sys_mbind
+ .long sys_get_mempolicy
+ .long sys_set_mempolicy
+diff -NurpP --minimal linux-2.6.32.1/arch/xtensa/mm/fault.c linux-2.6.32.1-vs2.3.0.36.27/arch/xtensa/mm/fault.c
+--- linux-2.6.32.1/arch/xtensa/mm/fault.c 2009-09-10 15:25:48.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/arch/xtensa/mm/fault.c 2009-12-03 20:04:56.000000000 +0100
+@@ -151,7 +151,8 @@ out_of_memory:
+ down_read(&mm->mmap_sem);
+ goto survive;
+ }
+- printk("VM: killing process %s\n", current->comm);
++ printk("VM: killing process %s(%d:#%u)\n",
++ current->comm, task_pid_nr(current), current->xid);
+ if (user_mode(regs))
+ do_group_exit(SIGKILL);
+ bad_page_fault(regs, address, SIGKILL);
+diff -NurpP --minimal linux-2.6.32.1/Documentation/scheduler/sched-cfs-hard-limits.txt linux-2.6.32.1-vs2.3.0.36.27/Documentation/scheduler/sched-cfs-hard-limits.txt
+--- linux-2.6.32.1/Documentation/scheduler/sched-cfs-hard-limits.txt 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/Documentation/scheduler/sched-cfs-hard-limits.txt 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,48 @@
++CPU HARD LIMITS FOR CFS GROUPS
++==============================
++
++1. Overview
++2. Interface
++3. Examples
++
++1. Overview
++-----------
++
++CFS is a proportional share scheduler which tries to divide the CPU time
++proportionately between tasks or groups of tasks (task group/cgroup) depending
++on the priority/weight of the task or shares assigned to groups of tasks.
++In CFS, a task/task group can get more than its share of CPU if there are
++enough idle CPU cycles available in the system, due to the work conserving
++nature of the scheduler. However in certain scenarios (like pay-per-use),
++it is desirable not to provide extra time to a group even in the presence
++of idle CPU cycles. This is where hard limiting can be of use.
++
++Hard limits for task groups can be set by specifying how much CPU runtime a
++group can consume within a given period. If the group consumes more CPU time
++than the runtime in a given period, it gets throttled. None of the tasks of
++the throttled group gets to run until the runtime of the group gets refreshed
++at the beginning of the next period.
++
++2. Interface
++------------
++
++Hard limit feature adds 2 cgroup files for CFS group scheduler:
++
++cfs_runtime_us: Hard limit for the group in microseconds.
++
++cfs_period_us: Time period in microseconds within which hard limits is
++enforced.
++
++A group gets created with default values for runtime (infinite runtime which
++means hard limits disabled) and period (0.5s). Each group can set its own
++values for runtime and period independent of other groups in the system.
++
++3. Examples
++-----------
++
++# mount -t cgroup -ocpu none /cgroups/
++# cd /cgroups
++# mkdir 1
++# cd 1/
++# echo 250000 > cfs_runtime_us /* set a 250ms runtime or limit */
++# echo 500000 > cfs_period_us /* set a 500ms period */
+diff -NurpP --minimal linux-2.6.32.1/Documentation/vserver/debug.txt linux-2.6.32.1-vs2.3.0.36.27/Documentation/vserver/debug.txt
+--- linux-2.6.32.1/Documentation/vserver/debug.txt 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/Documentation/vserver/debug.txt 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,154 @@
++
++debug_cvirt:
++
++ 2 4 "vx_map_tgid: %p/%llx: %d -> %d"
++ "vx_rmap_tgid: %p/%llx: %d -> %d"
++
++debug_dlim:
++
++ 0 1 "ALLOC (%p,#%d)%c inode (%d)"
++ "FREE (%p,#%d)%c inode"
++ 1 2 "ALLOC (%p,#%d)%c %lld bytes (%d)"
++ "FREE (%p,#%d)%c %lld bytes"
++ 2 4 "ADJUST: %lld,%lld on %ld,%ld [mult=%d]"
++ 3 8 "ext3_has_free_blocks(%p): %lu<%lu+1, %c, %u!=%u r=%d"
++ "ext3_has_free_blocks(%p): free=%lu, root=%lu"
++ "rcu_free_dl_info(%p)"
++ 4 10 "alloc_dl_info(%p,%d) = %p"
++ "dealloc_dl_info(%p)"
++ "get_dl_info(%p[#%d.%d])"
++ "put_dl_info(%p[#%d.%d])"
++ 5 20 "alloc_dl_info(%p,%d)*"
++ 6 40 "__hash_dl_info: %p[#%d]"
++ "__unhash_dl_info: %p[#%d]"
++ 7 80 "locate_dl_info(%p,#%d) = %p"
++
++debug_misc:
++
++ 0 1 "destroy_dqhash: %p [#0x%08x] c=%d"
++ "new_dqhash: %p [#0x%08x]"
++ "vroot[%d]_clr_dev: dev=%p[%lu,%d:%d]"
++ "vroot[%d]_get_real_bdev: dev=%p[%lu,%d:%d]"
++ "vroot[%d]_set_dev: dev=%p[%lu,%d:%d]"
++ "vroot_get_real_bdev not set"
++ 1 2 "cow_break_link(»%s«)"
++ "temp copy »%s«"
++ 2 4 "dentry_open(new): %p"
++ "dentry_open(old): %p"
++ "lookup_create(new): %p"
++ "old path »%s«"
++ "path_lookup(old): %d"
++ "vfs_create(new): %d"
++ "vfs_rename: %d"
++ "vfs_sendfile: %d"
++ 3 8 "fput(new_file=%p[#%d])"
++ "fput(old_file=%p[#%d])"
++ 4 10 "vx_info_kill(%p[#%d],%d,%d) = %d"
++ "vx_info_kill(%p[#%d],%d,%d)*"
++ 5 20 "vs_reboot(%p[#%d],%d)"
++ 6 40 "dropping task %p[#%u,%u] for %p[#%u,%u]"
++
++debug_net:
++
++ 2 4 "nx_addr_conflict(%p,%p) %d.%d,%d.%d"
++ 3 8 "inet_bind(%p) %d.%d.%d.%d, %d.%d.%d.%d, %d.%d.%d.%d"
++ "inet_bind(%p)* %p,%p;%lx %d.%d.%d.%d"
++ 4 10 "ip_route_connect(%p) %p,%p;%lx"
++ 5 20 "__addr_in_socket(%p,%d.%d.%d.%d) %p:%d.%d.%d.%d %p;%lx"
++ 6 40 "sk,egf: %p [#%d] (from %d)"
++ "sk,egn: %p [#%d] (from %d)"
++ "sk,req: %p [#%d] (from %d)"
++ "sk: %p [#%d] (from %d)"
++ "tw: %p [#%d] (from %d)"
++ 7 80 "__sock_recvmsg: %p[%p,%p,%p;%d]:%d/%d"
++ "__sock_sendmsg: %p[%p,%p,%p;%d]:%d/%d"
++
++debug_nid:
++
++ 0 1 "__lookup_nx_info(#%u): %p[#%u]"
++ "alloc_nx_info(%d) = %p"
++ "create_nx_info(%d) (dynamic rejected)"
++ "create_nx_info(%d) = %p (already there)"
++ "create_nx_info(%d) = %p (new)"
++ "dealloc_nx_info(%p)"
++ 1 2 "alloc_nx_info(%d)*"
++ "create_nx_info(%d)*"
++ 2 4 "get_nx_info(%p[#%d.%d])"
++ "put_nx_info(%p[#%d.%d])"
++ 3 8 "claim_nx_info(%p[#%d.%d.%d]) %p"
++ "clr_nx_info(%p[#%d.%d])"
++ "init_nx_info(%p[#%d.%d])"
++ "release_nx_info(%p[#%d.%d.%d]) %p"
++ "set_nx_info(%p[#%d.%d])"
++ 4 10 "__hash_nx_info: %p[#%d]"
++ "__nx_dynamic_id: [#%d]"
++ "__unhash_nx_info: %p[#%d.%d.%d]"
++ 5 20 "moved task %p into nxi:%p[#%d]"
++ "nx_migrate_task(%p,%p[#%d.%d.%d])"
++ "task_get_nx_info(%p)"
++ 6 40 "nx_clear_persistent(%p[#%d])"
++
++debug_quota:
++
++ 0 1 "quota_sync_dqh(%p,%d) discard inode %p"
++ 1 2 "quota_sync_dqh(%p,%d)"
++ "sync_dquots(%p,%d)"
++ "sync_dquots_dqh(%p,%d)"
++ 3 8 "do_quotactl(%p,%d,cmd=%d,id=%d,%p)"
++
++debug_switch:
++
++ 0 1 "vc: VCMD_%02d_%d[%d], %d,%p [%d,%d,%x,%x]"
++ 1 2 "vc: VCMD_%02d_%d[%d] = %08lx(%ld) [%d,%d]"
++ 4 10 "%s: (%s %s) returned %s with %d"
++
++debug_tag:
++
++ 7 80 "dx_parse_tag(»%s«): %d:#%d"
++ "dx_propagate_tag(%p[#%lu.%d]): %d,%d"
++
++debug_xid:
++
++ 0 1 "__lookup_vx_info(#%u): %p[#%u]"
++ "alloc_vx_info(%d) = %p"
++ "alloc_vx_info(%d)*"
++ "create_vx_info(%d) (dynamic rejected)"
++ "create_vx_info(%d) = %p (already there)"
++ "create_vx_info(%d) = %p (new)"
++ "dealloc_vx_info(%p)"
++ "loc_vx_info(%d) = %p (found)"
++ "loc_vx_info(%d) = %p (new)"
++ "loc_vx_info(%d) = %p (not available)"
++ 1 2 "create_vx_info(%d)*"
++ "loc_vx_info(%d)*"
++ 2 4 "get_vx_info(%p[#%d.%d])"
++ "put_vx_info(%p[#%d.%d])"
++ 3 8 "claim_vx_info(%p[#%d.%d.%d]) %p"
++ "clr_vx_info(%p[#%d.%d])"
++ "init_vx_info(%p[#%d.%d])"
++ "release_vx_info(%p[#%d.%d.%d]) %p"
++ "set_vx_info(%p[#%d.%d])"
++ 4 10 "__hash_vx_info: %p[#%d]"
++ "__unhash_vx_info: %p[#%d.%d.%d]"
++ "__vx_dynamic_id: [#%d]"
++ 5 20 "enter_vx_info(%p[#%d],%p) %p[#%d,%p]"
++ "leave_vx_info(%p[#%d,%p]) %p[#%d,%p]"
++ "moved task %p into vxi:%p[#%d]"
++ "task_get_vx_info(%p)"
++ "vx_migrate_task(%p,%p[#%d.%d])"
++ 6 40 "vx_clear_persistent(%p[#%d])"
++ "vx_exit_init(%p[#%d],%p[#%d,%d,%d])"
++ "vx_set_init(%p[#%d],%p[#%d,%d,%d])"
++ "vx_set_persistent(%p[#%d])"
++ "vx_set_reaper(%p[#%d],%p[#%d,%d])"
++ 7 80 "vx_child_reaper(%p[#%u,%u]) = %p[#%u,%u]"
++
++
++debug_limit:
++
++ n 2^n "vx_acc_cres[%5d,%s,%2d]: %5d%s"
++ "vx_cres_avail[%5d,%s,%2d]: %5ld > %5d + %5d"
++
++ m 2^m "vx_acc_page[%5d,%s,%2d]: %5d%s"
++ "vx_acc_pages[%5d,%s,%2d]: %5d += %5d"
++ "vx_pages_avail[%5d,%s,%2d]: %5ld > %5d + %5d"
+diff -NurpP --minimal linux-2.6.32.1/drivers/block/Kconfig linux-2.6.32.1-vs2.3.0.36.27/drivers/block/Kconfig
+--- linux-2.6.32.1/drivers/block/Kconfig 2009-09-10 15:25:49.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/block/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -271,6 +271,13 @@ config BLK_DEV_CRYPTOLOOP
+ instead, which can be configured to be on-disk compatible with the
+ cryptoloop device.
+
++config BLK_DEV_VROOT
++ tristate "Virtual Root device support"
++ depends on QUOTACTL
++ ---help---
++ Saying Y here will allow you to use quota/fs ioctls on a shared
++ partition within a virtual server without compromising security.
++
+ config BLK_DEV_NBD
+ tristate "Network block device support"
+ depends on NET
+diff -NurpP --minimal linux-2.6.32.1/drivers/block/loop.c linux-2.6.32.1-vs2.3.0.36.27/drivers/block/loop.c
+--- linux-2.6.32.1/drivers/block/loop.c 2009-12-03 20:02:19.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/block/loop.c 2009-12-03 20:04:56.000000000 +0100
+@@ -74,6 +74,7 @@
+ #include <linux/gfp.h>
+ #include <linux/kthread.h>
+ #include <linux/splice.h>
++#include <linux/vs_context.h>
+
+ #include <asm/uaccess.h>
+
+@@ -812,6 +813,7 @@ static int loop_set_fd(struct loop_devic
+ lo->lo_blocksize = lo_blocksize;
+ lo->lo_device = bdev;
+ lo->lo_flags = lo_flags;
++ lo->lo_xid = vx_current_xid();
+ lo->lo_backing_file = file;
+ lo->transfer = transfer_none;
+ lo->ioctl = NULL;
+@@ -937,6 +939,7 @@ static int loop_clr_fd(struct loop_devic
+ lo->lo_encrypt_key_size = 0;
+ lo->lo_flags = 0;
+ lo->lo_thread = NULL;
++ lo->lo_xid = 0;
+ memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE);
+ memset(lo->lo_crypt_name, 0, LO_NAME_SIZE);
+ memset(lo->lo_file_name, 0, LO_NAME_SIZE);
+@@ -971,7 +974,7 @@ loop_set_status(struct loop_device *lo,
+
+ if (lo->lo_encrypt_key_size &&
+ lo->lo_key_owner != uid &&
+- !capable(CAP_SYS_ADMIN))
++ !vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_CLOOP))
+ return -EPERM;
+ if (lo->lo_state != Lo_bound)
+ return -ENXIO;
+@@ -1055,7 +1058,8 @@ loop_get_status(struct loop_device *lo,
+ memcpy(info->lo_crypt_name, lo->lo_crypt_name, LO_NAME_SIZE);
+ info->lo_encrypt_type =
+ lo->lo_encryption ? lo->lo_encryption->number : 0;
+- if (lo->lo_encrypt_key_size && capable(CAP_SYS_ADMIN)) {
++ if (lo->lo_encrypt_key_size &&
++ vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_CLOOP)) {
+ info->lo_encrypt_key_size = lo->lo_encrypt_key_size;
+ memcpy(info->lo_encrypt_key, lo->lo_encrypt_key,
+ lo->lo_encrypt_key_size);
+@@ -1399,6 +1403,9 @@ static int lo_open(struct block_device *
+ {
+ struct loop_device *lo = bdev->bd_disk->private_data;
+
++ if (!vx_check(lo->lo_xid, VS_IDENT|VS_HOSTID|VS_ADMIN_P))
++ return -EACCES;
++
+ mutex_lock(&lo->lo_ctl_mutex);
+ lo->lo_refcnt++;
+ mutex_unlock(&lo->lo_ctl_mutex);
+diff -NurpP --minimal linux-2.6.32.1/drivers/block/Makefile linux-2.6.32.1-vs2.3.0.36.27/drivers/block/Makefile
+--- linux-2.6.32.1/drivers/block/Makefile 2009-09-10 15:25:49.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/block/Makefile 2009-12-03 20:04:56.000000000 +0100
+@@ -34,6 +34,7 @@ obj-$(CONFIG_VIODASD) += viodasd.o
+ obj-$(CONFIG_BLK_DEV_SX8) += sx8.o
+ obj-$(CONFIG_BLK_DEV_UB) += ub.o
+ obj-$(CONFIG_BLK_DEV_HD) += hd.o
++obj-$(CONFIG_BLK_DEV_VROOT) += vroot.o
+
+ obj-$(CONFIG_XEN_BLKDEV_FRONTEND) += xen-blkfront.o
+
+diff -NurpP --minimal linux-2.6.32.1/drivers/block/vroot.c linux-2.6.32.1-vs2.3.0.36.27/drivers/block/vroot.c
+--- linux-2.6.32.1/drivers/block/vroot.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/block/vroot.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,281 @@
++/*
++ * linux/drivers/block/vroot.c
++ *
++ * written by Herbert Pötzl, 9/11/2002
++ * ported to 2.6.10 by Herbert Pötzl, 30/12/2004
++ *
++ * based on the loop.c code by Theodore Ts'o.
++ *
++ * Copyright (C) 2002-2007 by Herbert Pötzl.
++ * Redistribution of this file is permitted under the
++ * GNU General Public License.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/file.h>
++#include <linux/major.h>
++#include <linux/blkdev.h>
++
++#include <linux/vroot.h>
++#include <linux/vs_context.h>
++
++
++static int max_vroot = 8;
++
++static struct vroot_device *vroot_dev;
++static struct gendisk **disks;
++
++
++static int vroot_set_dev(
++ struct vroot_device *vr,
++ struct block_device *bdev,
++ unsigned int arg)
++{
++ struct block_device *real_bdev;
++ struct file *file;
++ struct inode *inode;
++ int error;
++
++ error = -EBUSY;
++ if (vr->vr_state != Vr_unbound)
++ goto out;
++
++ error = -EBADF;
++ file = fget(arg);
++ if (!file)
++ goto out;
++
++ error = -EINVAL;
++ inode = file->f_dentry->d_inode;
++
++
++ if (S_ISBLK(inode->i_mode)) {
++ real_bdev = inode->i_bdev;
++ vr->vr_device = real_bdev;
++ __iget(real_bdev->bd_inode);
++ } else
++ goto out_fput;
++
++ vxdprintk(VXD_CBIT(misc, 0),
++ "vroot[%d]_set_dev: dev=" VXF_DEV,
++ vr->vr_number, VXD_DEV(real_bdev));
++
++ vr->vr_state = Vr_bound;
++ error = 0;
++
++ out_fput:
++ fput(file);
++ out:
++ return error;
++}
++
++static int vroot_clr_dev(
++ struct vroot_device *vr,
++ struct block_device *bdev)
++{
++ struct block_device *real_bdev;
++
++ if (vr->vr_state != Vr_bound)
++ return -ENXIO;
++ if (vr->vr_refcnt > 1) /* we needed one fd for the ioctl */
++ return -EBUSY;
++
++ real_bdev = vr->vr_device;
++
++ vxdprintk(VXD_CBIT(misc, 0),
++ "vroot[%d]_clr_dev: dev=" VXF_DEV,
++ vr->vr_number, VXD_DEV(real_bdev));
++
++ bdput(real_bdev);
++ vr->vr_state = Vr_unbound;
++ vr->vr_device = NULL;
++ return 0;
++}
++
++
++static int vr_ioctl(struct block_device *bdev, fmode_t mode,
++ unsigned int cmd, unsigned long arg)
++{
++ struct vroot_device *vr = bdev->bd_disk->private_data;
++ int err;
++
++ down(&vr->vr_ctl_mutex);
++ switch (cmd) {
++ case VROOT_SET_DEV:
++ err = vroot_set_dev(vr, bdev, arg);
++ break;
++ case VROOT_CLR_DEV:
++ err = vroot_clr_dev(vr, bdev);
++ break;
++ default:
++ err = -EINVAL;
++ break;
++ }
++ up(&vr->vr_ctl_mutex);
++ return err;
++}
++
++static int vr_open(struct block_device *bdev, fmode_t mode)
++{
++ struct vroot_device *vr = bdev->bd_disk->private_data;
++
++ down(&vr->vr_ctl_mutex);
++ vr->vr_refcnt++;
++ up(&vr->vr_ctl_mutex);
++ return 0;
++}
++
++static int vr_release(struct gendisk *disk, fmode_t mode)
++{
++ struct vroot_device *vr = disk->private_data;
++
++ down(&vr->vr_ctl_mutex);
++ --vr->vr_refcnt;
++ up(&vr->vr_ctl_mutex);
++ return 0;
++}
++
++static struct block_device_operations vr_fops = {
++ .owner = THIS_MODULE,
++ .open = vr_open,
++ .release = vr_release,
++ .ioctl = vr_ioctl,
++};
++
++struct block_device *__vroot_get_real_bdev(struct block_device *bdev)
++{
++ struct inode *inode = bdev->bd_inode;
++ struct vroot_device *vr;
++ struct block_device *real_bdev;
++ int minor = iminor(inode);
++
++ vr = &vroot_dev[minor];
++ real_bdev = vr->vr_device;
++
++ vxdprintk(VXD_CBIT(misc, 0),
++ "vroot[%d]_get_real_bdev: dev=" VXF_DEV,
++ vr->vr_number, VXD_DEV(real_bdev));
++
++ if (vr->vr_state != Vr_bound)
++ return ERR_PTR(-ENXIO);
++
++ __iget(real_bdev->bd_inode);
++ return real_bdev;
++}
++
++/*
++ * And now the modules code and kernel interface.
++ */
++
++module_param(max_vroot, int, 0);
++
++MODULE_PARM_DESC(max_vroot, "Maximum number of vroot devices (1-256)");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_BLOCKDEV_MAJOR(VROOT_MAJOR);
++
++MODULE_AUTHOR ("Herbert Pötzl");
++MODULE_DESCRIPTION ("Virtual Root Device Mapper");
++
++
++int __init vroot_init(void)
++{
++ int err, i;
++
++ if (max_vroot < 1 || max_vroot > 256) {
++ max_vroot = MAX_VROOT_DEFAULT;
++ printk(KERN_WARNING "vroot: invalid max_vroot "
++ "(must be between 1 and 256), "
++ "using default (%d)\n", max_vroot);
++ }
++
++ if (register_blkdev(VROOT_MAJOR, "vroot"))
++ return -EIO;
++
++ err = -ENOMEM;
++ vroot_dev = kmalloc(max_vroot * sizeof(struct vroot_device), GFP_KERNEL);
++ if (!vroot_dev)
++ goto out_mem1;
++ memset(vroot_dev, 0, max_vroot * sizeof(struct vroot_device));
++
++ disks = kmalloc(max_vroot * sizeof(struct gendisk *), GFP_KERNEL);
++ if (!disks)
++ goto out_mem2;
++
++ for (i = 0; i < max_vroot; i++) {
++ disks[i] = alloc_disk(1);
++ if (!disks[i])
++ goto out_mem3;
++ disks[i]->queue = blk_alloc_queue(GFP_KERNEL);
++ if (!disks[i]->queue)
++ goto out_mem3;
++ }
++
++ for (i = 0; i < max_vroot; i++) {
++ struct vroot_device *vr = &vroot_dev[i];
++ struct gendisk *disk = disks[i];
++
++ memset(vr, 0, sizeof(*vr));
++ init_MUTEX(&vr->vr_ctl_mutex);
++ vr->vr_number = i;
++ disk->major = VROOT_MAJOR;
++ disk->first_minor = i;
++ disk->fops = &vr_fops;
++ sprintf(disk->disk_name, "vroot%d", i);
++ disk->private_data = vr;
++ }
++
++ err = register_vroot_grb(&__vroot_get_real_bdev);
++ if (err)
++ goto out_mem3;
++
++ for (i = 0; i < max_vroot; i++)
++ add_disk(disks[i]);
++ printk(KERN_INFO "vroot: loaded (max %d devices)\n", max_vroot);
++ return 0;
++
++out_mem3:
++ while (i--)
++ put_disk(disks[i]);
++ kfree(disks);
++out_mem2:
++ kfree(vroot_dev);
++out_mem1:
++ unregister_blkdev(VROOT_MAJOR, "vroot");
++ printk(KERN_ERR "vroot: ran out of memory\n");
++ return err;
++}
++
++void vroot_exit(void)
++{
++ int i;
++
++ if (unregister_vroot_grb(&__vroot_get_real_bdev))
++ printk(KERN_WARNING "vroot: cannot unregister grb\n");
++
++ for (i = 0; i < max_vroot; i++) {
++ del_gendisk(disks[i]);
++ put_disk(disks[i]);
++ }
++ unregister_blkdev(VROOT_MAJOR, "vroot");
++
++ kfree(disks);
++ kfree(vroot_dev);
++}
++
++module_init(vroot_init);
++module_exit(vroot_exit);
++
++#ifndef MODULE
++
++static int __init max_vroot_setup(char *str)
++{
++ max_vroot = simple_strtol(str, NULL, 0);
++ return 1;
++}
++
++__setup("max_vroot=", max_vroot_setup);
++
++#endif
++
+diff -NurpP --minimal linux-2.6.32.1/drivers/char/sysrq.c linux-2.6.32.1-vs2.3.0.36.27/drivers/char/sysrq.c
+--- linux-2.6.32.1/drivers/char/sysrq.c 2009-12-03 20:02:20.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/char/sysrq.c 2009-12-03 20:04:56.000000000 +0100
+@@ -38,6 +38,7 @@
+ #include <linux/workqueue.h>
+ #include <linux/hrtimer.h>
+ #include <linux/oom.h>
++#include <linux/vserver/debug.h>
+
+ #include <asm/ptrace.h>
+ #include <asm/irq_regs.h>
+@@ -391,6 +392,21 @@ static struct sysrq_key_op sysrq_unrt_op
+ .enable_mask = SYSRQ_ENABLE_RTNICE,
+ };
+
++
++#ifdef CONFIG_VSERVER_DEBUG
++static void sysrq_handle_vxinfo(int key, struct tty_struct *tty)
++{
++ dump_vx_info_inactive((key == 'x')?0:1);
++}
++
++static struct sysrq_key_op sysrq_showvxinfo_op = {
++ .handler = sysrq_handle_vxinfo,
++ .help_msg = "conteXt",
++ .action_msg = "Show Context Info",
++ .enable_mask = SYSRQ_ENABLE_DUMP,
++};
++#endif
++
+ /* Key Operations table and lock */
+ static DEFINE_SPINLOCK(sysrq_key_table_lock);
+
+@@ -445,7 +461,11 @@ static struct sysrq_key_op *sysrq_key_ta
+ NULL, /* v */
+ &sysrq_showstate_blocked_op, /* w */
+ /* x: May be registered on ppc/powerpc for xmon */
++#ifdef CONFIG_VSERVER_DEBUG
++ &sysrq_showvxinfo_op, /* x */
++#else
+ NULL, /* x */
++#endif
+ /* y: May be registered on sparc64 for global register dump */
+ NULL, /* y */
+ &sysrq_ftrace_dump_op, /* z */
+@@ -460,6 +480,8 @@ static int sysrq_key_table_key2index(int
+ retval = key - '0';
+ else if ((key >= 'a') && (key <= 'z'))
+ retval = key + 10 - 'a';
++ else if ((key >= 'A') && (key <= 'Z'))
++ retval = key + 10 - 'A';
+ else
+ retval = -1;
+ return retval;
+diff -NurpP --minimal linux-2.6.32.1/drivers/char/tty_io.c linux-2.6.32.1-vs2.3.0.36.27/drivers/char/tty_io.c
+--- linux-2.6.32.1/drivers/char/tty_io.c 2009-12-03 20:02:20.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/char/tty_io.c 2009-12-03 20:04:56.000000000 +0100
+@@ -106,6 +106,7 @@
+
+ #include <linux/kmod.h>
+ #include <linux/nsproxy.h>
++#include <linux/vs_pid.h>
+
+ #undef TTY_DEBUG_HANGUP
+
+@@ -1966,7 +1967,8 @@ static int tiocsti(struct tty_struct *tt
+ char ch, mbz = 0;
+ struct tty_ldisc *ld;
+
+- if ((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN))
++ if (((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN)) ||
++ !vx_ccaps(VXC_TIOCSTI))
+ return -EPERM;
+ if (get_user(ch, p))
+ return -EFAULT;
+@@ -2254,6 +2256,7 @@ static int tiocspgrp(struct tty_struct *
+ return -ENOTTY;
+ if (get_user(pgrp_nr, p))
+ return -EFAULT;
++ pgrp_nr = vx_rmap_pid(pgrp_nr);
+ if (pgrp_nr < 0)
+ return -EINVAL;
+ rcu_read_lock();
+diff -NurpP --minimal linux-2.6.32.1/drivers/infiniband/hw/ipath/ipath_user_pages.c linux-2.6.32.1-vs2.3.0.36.27/drivers/infiniband/hw/ipath/ipath_user_pages.c
+--- linux-2.6.32.1/drivers/infiniband/hw/ipath/ipath_user_pages.c 2009-12-03 20:02:23.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/infiniband/hw/ipath/ipath_user_pages.c 2009-12-04 23:31:17.000000000 +0100
+@@ -34,6 +34,7 @@
+ #include <linux/mm.h>
+ #include <linux/device.h>
+ #include <linux/sched.h>
++#include <linux/vs_memory.h>
+
+ #include "ipath_kernel.h"
+
+@@ -62,7 +63,8 @@ static int __get_user_pages(unsigned lon
+ lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >>
+ PAGE_SHIFT;
+
+- if (num_pages > lock_limit) {
++ if (num_pages > lock_limit ||
++ !vx_vmlocked_avail(current->mm, num_pages)) {
+ ret = -ENOMEM;
+ goto bail;
+ }
+@@ -79,7 +81,7 @@ static int __get_user_pages(unsigned lon
+ goto bail_release;
+ }
+
+- current->mm->locked_vm += num_pages;
++ vx_vmlocked_add(current->mm, num_pages);
+
+ ret = 0;
+ goto bail;
+@@ -178,7 +180,7 @@ void ipath_release_user_pages(struct pag
+
+ __ipath_release_user_pages(p, num_pages, 1);
+
+- current->mm->locked_vm -= num_pages;
++ vx_vmlocked_sub(current->mm, num_pages);
+
+ up_write(¤t->mm->mmap_sem);
+ }
+@@ -195,7 +197,7 @@ static void user_pages_account(struct wo
+ container_of(_work, struct ipath_user_pages_work, work);
+
+ down_write(&work->mm->mmap_sem);
+- work->mm->locked_vm -= work->num_pages;
++ vx_vmlocked_sub(work->mm, work->num_pages);
+ up_write(&work->mm->mmap_sem);
+ mmput(work->mm);
+ kfree(work);
+diff -NurpP --minimal linux-2.6.32.1/drivers/md/dm.c linux-2.6.32.1-vs2.3.0.36.27/drivers/md/dm.c
+--- linux-2.6.32.1/drivers/md/dm.c 2009-12-03 20:02:25.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/md/dm.c 2009-12-03 20:04:56.000000000 +0100
+@@ -19,6 +19,7 @@
+ #include <linux/slab.h>
+ #include <linux/idr.h>
+ #include <linux/hdreg.h>
++#include <linux/vs_base.h>
+
+ #include <trace/events/block.h>
+
+@@ -119,6 +120,7 @@ struct mapped_device {
+ rwlock_t map_lock;
+ atomic_t holders;
+ atomic_t open_count;
++ xid_t xid;
+
+ unsigned long flags;
+
+@@ -323,6 +325,7 @@ static void __exit dm_exit(void)
+ static int dm_blk_open(struct block_device *bdev, fmode_t mode)
+ {
+ struct mapped_device *md;
++ int ret = -ENXIO;
+
+ spin_lock(&_minor_lock);
+
+@@ -331,18 +334,19 @@ static int dm_blk_open(struct block_devi
+ goto out;
+
+ if (test_bit(DMF_FREEING, &md->flags) ||
+- test_bit(DMF_DELETING, &md->flags)) {
+- md = NULL;
++ test_bit(DMF_DELETING, &md->flags))
++ goto out;
++
++ ret = -EACCES;
++ if (!vx_check(md->xid, VS_IDENT|VS_HOSTID))
+ goto out;
+- }
+
+ dm_get(md);
+ atomic_inc(&md->open_count);
+-
++ ret = 0;
+ out:
+ spin_unlock(&_minor_lock);
+-
+- return md ? 0 : -ENXIO;
++ return ret;
+ }
+
+ static int dm_blk_close(struct gendisk *disk, fmode_t mode)
+@@ -553,6 +557,14 @@ int dm_set_geometry(struct mapped_device
+ return 0;
+ }
+
++/*
++ * Get the xid associated with a dm device
++ */
++xid_t dm_get_xid(struct mapped_device *md)
++{
++ return md->xid;
++}
++
+ /*-----------------------------------------------------------------
+ * CRUD START:
+ * A more elegant soln is in the works that uses the queue
+@@ -1762,6 +1774,7 @@ static struct mapped_device *alloc_dev(i
+ INIT_LIST_HEAD(&md->uevent_list);
+ spin_lock_init(&md->uevent_lock);
+
++ md->xid = vx_current_xid();
+ md->queue = blk_init_queue(dm_request_fn, NULL);
+ if (!md->queue)
+ goto bad_queue;
+diff -NurpP --minimal linux-2.6.32.1/drivers/md/dm.h linux-2.6.32.1-vs2.3.0.36.27/drivers/md/dm.h
+--- linux-2.6.32.1/drivers/md/dm.h 2009-09-10 15:25:55.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/md/dm.h 2009-12-03 20:04:56.000000000 +0100
+@@ -41,6 +41,8 @@ struct dm_dev_internal {
+ struct dm_table;
+ struct dm_md_mempools;
+
++xid_t dm_get_xid(struct mapped_device *md);
++
+ /*-----------------------------------------------------------------
+ * Internal table functions.
+ *---------------------------------------------------------------*/
+diff -NurpP --minimal linux-2.6.32.1/drivers/md/dm-ioctl.c linux-2.6.32.1-vs2.3.0.36.27/drivers/md/dm-ioctl.c
+--- linux-2.6.32.1/drivers/md/dm-ioctl.c 2009-12-03 20:02:25.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/md/dm-ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -16,6 +16,7 @@
+ #include <linux/dm-ioctl.h>
+ #include <linux/hdreg.h>
+ #include <linux/compat.h>
++#include <linux/vs_context.h>
+
+ #include <asm/uaccess.h>
+
+@@ -101,7 +102,8 @@ static struct hash_cell *__get_name_cell
+ unsigned int h = hash_str(str);
+
+ list_for_each_entry (hc, _name_buckets + h, name_list)
+- if (!strcmp(hc->name, str)) {
++ if (vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT) &&
++ !strcmp(hc->name, str)) {
+ dm_get(hc->md);
+ return hc;
+ }
+@@ -115,7 +117,8 @@ static struct hash_cell *__get_uuid_cell
+ unsigned int h = hash_str(str);
+
+ list_for_each_entry (hc, _uuid_buckets + h, uuid_list)
+- if (!strcmp(hc->uuid, str)) {
++ if (vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT) &&
++ !strcmp(hc->uuid, str)) {
+ dm_get(hc->md);
+ return hc;
+ }
+@@ -352,6 +355,9 @@ typedef int (*ioctl_fn)(struct dm_ioctl
+
+ static int remove_all(struct dm_ioctl *param, size_t param_size)
+ {
++ if (!vx_check(0, VS_ADMIN))
++ return -EPERM;
++
+ dm_hash_remove_all(1);
+ param->data_size = 0;
+ return 0;
+@@ -399,6 +405,8 @@ static int list_devices(struct dm_ioctl
+ */
+ for (i = 0; i < NUM_BUCKETS; i++) {
+ list_for_each_entry (hc, _name_buckets + i, name_list) {
++ if (!vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT))
++ continue;
+ needed += sizeof(struct dm_name_list);
+ needed += strlen(hc->name) + 1;
+ needed += ALIGN_MASK;
+@@ -422,6 +430,8 @@ static int list_devices(struct dm_ioctl
+ */
+ for (i = 0; i < NUM_BUCKETS; i++) {
+ list_for_each_entry (hc, _name_buckets + i, name_list) {
++ if (!vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT))
++ continue;
+ if (old_nl)
+ old_nl->next = (uint32_t) ((void *) nl -
+ (void *) old_nl);
+@@ -612,10 +622,11 @@ static struct hash_cell *__find_device_h
+ if (!md)
+ goto out;
+
+- mdptr = dm_get_mdptr(md);
++ if (vx_check(dm_get_xid(md), VS_WATCH_P | VS_IDENT))
++ mdptr = dm_get_mdptr(md);
++
+ if (!mdptr)
+ dm_put(md);
+-
+ out:
+ return mdptr;
+ }
+@@ -1445,8 +1456,8 @@ static int ctl_ioctl(uint command, struc
+ ioctl_fn fn = NULL;
+ size_t param_size;
+
+- /* only root can play with this */
+- if (!capable(CAP_SYS_ADMIN))
++ /* only root and certain contexts can play with this */
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_MAPPER))
+ return -EACCES;
+
+ if (_IOC_TYPE(command) != DM_IOCTL)
+diff -NurpP --minimal linux-2.6.32.1/drivers/net/tun.c linux-2.6.32.1-vs2.3.0.36.27/drivers/net/tun.c
+--- linux-2.6.32.1/drivers/net/tun.c 2009-12-03 20:02:32.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/drivers/net/tun.c 2009-12-03 20:04:56.000000000 +0100
+@@ -61,6 +61,7 @@
+ #include <linux/crc32.h>
+ #include <linux/nsproxy.h>
+ #include <linux/virtio_net.h>
++#include <linux/vs_network.h>
+ #include <net/net_namespace.h>
+ #include <net/netns/generic.h>
+ #include <net/rtnetlink.h>
+@@ -102,6 +103,7 @@ struct tun_struct {
+ unsigned int flags;
+ uid_t owner;
+ gid_t group;
++ nid_t nid;
+
+ struct net_device *dev;
+ struct fasync_struct *fasync;
+@@ -816,6 +818,7 @@ static void tun_setup(struct net_device
+
+ tun->owner = -1;
+ tun->group = -1;
++ tun->nid = current->nid;
+
+ dev->ethtool_ops = &tun_ethtool_ops;
+ dev->destructor = tun_free_netdev;
+@@ -932,7 +935,7 @@ static int tun_set_iff(struct net *net,
+
+ if (((tun->owner != -1 && cred->euid != tun->owner) ||
+ (tun->group != -1 && !in_egroup_p(tun->group))) &&
+- !capable(CAP_NET_ADMIN))
++ !cap_raised(current_cap(), CAP_NET_ADMIN))
+ return -EPERM;
+ err = security_tun_dev_attach(tun->socket.sk);
+ if (err < 0)
+@@ -946,7 +949,7 @@ static int tun_set_iff(struct net *net,
+ char *name;
+ unsigned long flags = 0;
+
+- if (!capable(CAP_NET_ADMIN))
++ if (!nx_capable(CAP_NET_ADMIN, NXC_TUN_CREATE))
+ return -EPERM;
+ err = security_tun_dev_create();
+ if (err < 0)
+@@ -1013,6 +1016,9 @@ static int tun_set_iff(struct net *net,
+
+ sk->sk_destruct = tun_sock_destruct;
+
++ if (!nx_check(tun->nid, VS_IDENT | VS_HOSTID | VS_ADMIN_P))
++ return -EPERM;
++
+ err = tun_attach(tun, file);
+ if (err < 0)
+ goto failed;
+@@ -1202,6 +1208,16 @@ static long tun_chr_ioctl(struct file *f
+ DBG(KERN_INFO "%s: group set to %d\n", tun->dev->name, tun->group);
+ break;
+
++ case TUNSETNID:
++ if (!capable(CAP_CONTEXT))
++ return -EPERM;
++
++ /* Set nid owner of the device */
++ tun->nid = (nid_t) arg;
++
++ DBG(KERN_INFO "%s: nid owner set to %u\n", tun->dev->name, tun->nid);
++ break;
++
+ case TUNSETLINK:
+ /* Only allow setting the type when the interface is down */
+ if (tun->dev->flags & IFF_UP) {
+diff -NurpP --minimal linux-2.6.32.1/fs/attr.c linux-2.6.32.1-vs2.3.0.36.27/fs/attr.c
+--- linux-2.6.32.1/fs/attr.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/attr.c 2009-12-03 20:04:56.000000000 +0100
+@@ -14,6 +14,9 @@
+ #include <linux/fcntl.h>
+ #include <linux/quotaops.h>
+ #include <linux/security.h>
++#include <linux/proc_fs.h>
++#include <linux/devpts_fs.h>
++#include <linux/vs_tag.h>
+
+ /* Taken over from the old code... */
+
+@@ -55,6 +58,10 @@ int inode_change_ok(const struct inode *
+ if (!is_owner_or_cap(inode))
+ goto error;
+ }
++
++ if (dx_permission(inode, MAY_WRITE))
++ goto error;
++
+ fine:
+ retval = 0;
+ error:
+@@ -120,6 +127,8 @@ int inode_setattr(struct inode * inode,
+ inode->i_uid = attr->ia_uid;
+ if (ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
++ if ((ia_valid & ATTR_TAG) && IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ if (ia_valid & ATTR_ATIME)
+ inode->i_atime = timespec_trunc(attr->ia_atime,
+ inode->i_sb->s_time_gran);
+@@ -214,7 +223,8 @@ int notify_change(struct dentry * dentry
+ error = inode_change_ok(inode, attr);
+ if (!error) {
+ if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid))
++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag))
+ error = vfs_dq_transfer(inode, attr) ?
+ -EDQUOT : 0;
+ if (!error)
+diff -NurpP --minimal linux-2.6.32.1/fs/binfmt_aout.c linux-2.6.32.1-vs2.3.0.36.27/fs/binfmt_aout.c
+--- linux-2.6.32.1/fs/binfmt_aout.c 2009-03-24 14:22:24.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/binfmt_aout.c 2009-12-03 20:04:56.000000000 +0100
+@@ -24,6 +24,7 @@
+ #include <linux/binfmts.h>
+ #include <linux/personality.h>
+ #include <linux/init.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+diff -NurpP --minimal linux-2.6.32.1/fs/binfmt_elf.c linux-2.6.32.1-vs2.3.0.36.27/fs/binfmt_elf.c
+--- linux-2.6.32.1/fs/binfmt_elf.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/binfmt_elf.c 2009-12-03 20:04:56.000000000 +0100
+@@ -31,6 +31,7 @@
+ #include <linux/random.h>
+ #include <linux/elf.h>
+ #include <linux/utsname.h>
++#include <linux/vs_memory.h>
+ #include <asm/uaccess.h>
+ #include <asm/param.h>
+ #include <asm/page.h>
+diff -NurpP --minimal linux-2.6.32.1/fs/binfmt_flat.c linux-2.6.32.1-vs2.3.0.36.27/fs/binfmt_flat.c
+--- linux-2.6.32.1/fs/binfmt_flat.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/binfmt_flat.c 2009-12-03 20:04:56.000000000 +0100
+@@ -35,6 +35,7 @@
+ #include <linux/init.h>
+ #include <linux/flat.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/byteorder.h>
+ #include <asm/system.h>
+diff -NurpP --minimal linux-2.6.32.1/fs/binfmt_som.c linux-2.6.32.1-vs2.3.0.36.27/fs/binfmt_som.c
+--- linux-2.6.32.1/fs/binfmt_som.c 2009-06-11 17:13:02.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/binfmt_som.c 2009-12-03 20:04:56.000000000 +0100
+@@ -28,6 +28,7 @@
+ #include <linux/shm.h>
+ #include <linux/personality.h>
+ #include <linux/init.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+diff -NurpP --minimal linux-2.6.32.1/fs/block_dev.c linux-2.6.32.1-vs2.3.0.36.27/fs/block_dev.c
+--- linux-2.6.32.1/fs/block_dev.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/block_dev.c 2009-12-03 20:04:56.000000000 +0100
+@@ -26,6 +26,7 @@
+ #include <linux/namei.h>
+ #include <linux/log2.h>
+ #include <linux/kmemleak.h>
++#include <linux/vs_device.h>
+ #include <asm/uaccess.h>
+ #include "internal.h"
+
+@@ -555,6 +556,7 @@ struct block_device *bdget(dev_t dev)
+ bdev->bd_invalidated = 0;
+ inode->i_mode = S_IFBLK;
+ inode->i_rdev = dev;
++ inode->i_mdev = dev;
+ inode->i_bdev = bdev;
+ inode->i_data.a_ops = &def_blk_aops;
+ mapping_set_gfp_mask(&inode->i_data, GFP_USER);
+@@ -601,6 +603,11 @@ EXPORT_SYMBOL(bdput);
+ static struct block_device *bd_acquire(struct inode *inode)
+ {
+ struct block_device *bdev;
++ dev_t mdev;
++
++ if (!vs_map_blkdev(inode->i_rdev, &mdev, DATTR_OPEN))
++ return NULL;
++ inode->i_mdev = mdev;
+
+ spin_lock(&bdev_lock);
+ bdev = inode->i_bdev;
+@@ -611,7 +618,7 @@ static struct block_device *bd_acquire(s
+ }
+ spin_unlock(&bdev_lock);
+
+- bdev = bdget(inode->i_rdev);
++ bdev = bdget(mdev);
+ if (bdev) {
+ spin_lock(&bdev_lock);
+ if (!inode->i_bdev) {
+diff -NurpP --minimal linux-2.6.32.1/fs/btrfs/ctree.h linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/ctree.h
+--- linux-2.6.32.1/fs/btrfs/ctree.h 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/ctree.h 2009-12-03 20:04:56.000000000 +0100
+@@ -544,11 +544,14 @@ struct btrfs_inode_item {
+ /* modification sequence number for NFS */
+ __le64 sequence;
+
++ __le16 tag;
+ /*
+ * a little future expansion, for more than this we can
+ * just grow the inode item and version it
+ */
+- __le64 reserved[4];
++ __le16 reserved16;
++ __le32 reserved32;
++ __le64 reserved[3];
+ struct btrfs_timespec atime;
+ struct btrfs_timespec ctime;
+ struct btrfs_timespec mtime;
+@@ -1155,6 +1158,8 @@ struct btrfs_root {
+ #define BTRFS_MOUNT_NOSSD (1 << 9)
+ #define BTRFS_MOUNT_DISCARD (1 << 10)
+
++#define BTRFS_MOUNT_TAGGED (1 << 24)
++
+ #define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt)
+ #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt)
+ #define btrfs_test_opt(root, opt) ((root)->fs_info->mount_opt & \
+@@ -1174,6 +1179,10 @@ struct btrfs_root {
+ #define BTRFS_INODE_NOATIME (1 << 9)
+ #define BTRFS_INODE_DIRSYNC (1 << 10)
+
++#define BTRFS_INODE_IXUNLINK (1 << 24)
++#define BTRFS_INODE_BARRIER (1 << 25)
++#define BTRFS_INODE_COW (1 << 26)
++
+
+ /* some macros to generate set/get funcs for the struct fields. This
+ * assumes there is a lefoo_to_cpu for every type, so lets make a simple
+@@ -1376,6 +1385,7 @@ BTRFS_SETGET_FUNCS(inode_block_group, st
+ BTRFS_SETGET_FUNCS(inode_nlink, struct btrfs_inode_item, nlink, 32);
+ BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32);
+ BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32);
++BTRFS_SETGET_FUNCS(inode_tag, struct btrfs_inode_item, tag, 16);
+ BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32);
+ BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64);
+ BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);
+@@ -2338,6 +2348,7 @@ extern const struct dentry_operations bt
+ long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+ void btrfs_update_iflags(struct inode *inode);
+ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir);
++int btrfs_sync_flags(struct inode *inode, int, int);
+
+ /* file.c */
+ int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync);
+diff -NurpP --minimal linux-2.6.32.1/fs/btrfs/disk-io.c linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/disk-io.c
+--- linux-2.6.32.1/fs/btrfs/disk-io.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/disk-io.c 2009-12-03 20:04:56.000000000 +0100
+@@ -1723,6 +1723,9 @@ struct btrfs_root *open_ctree(struct sup
+ goto fail_iput;
+ }
+
++ if (btrfs_test_opt(tree_root, TAGGED))
++ sb->s_flags |= MS_TAGGED;
++
+ features = btrfs_super_incompat_flags(disk_super) &
+ ~BTRFS_FEATURE_INCOMPAT_SUPP;
+ if (features) {
+diff -NurpP --minimal linux-2.6.32.1/fs/btrfs/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/inode.c
+--- linux-2.6.32.1/fs/btrfs/inode.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -36,6 +36,8 @@
+ #include <linux/xattr.h>
+ #include <linux/posix_acl.h>
+ #include <linux/falloc.h>
++#include <linux/vs_tag.h>
++
+ #include "compat.h"
+ #include "ctree.h"
+ #include "disk-io.h"
+@@ -2242,6 +2244,8 @@ static void btrfs_read_locked_inode(stru
+ int maybe_acls;
+ u64 alloc_group_block;
+ u32 rdev;
++ uid_t uid;
++ gid_t gid;
+ int ret;
+
+ path = btrfs_alloc_path();
+@@ -2258,8 +2262,13 @@ static void btrfs_read_locked_inode(stru
+
+ inode->i_mode = btrfs_inode_mode(leaf, inode_item);
+ inode->i_nlink = btrfs_inode_nlink(leaf, inode_item);
+- inode->i_uid = btrfs_inode_uid(leaf, inode_item);
+- inode->i_gid = btrfs_inode_gid(leaf, inode_item);
++
++ uid = btrfs_inode_uid(leaf, inode_item);
++ gid = btrfs_inode_gid(leaf, inode_item);
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ btrfs_inode_tag(leaf, inode_item));
+ btrfs_i_size_write(inode, btrfs_inode_size(leaf, inode_item));
+
+ tspec = btrfs_inode_atime(inode_item);
+@@ -2341,8 +2350,15 @@ static void fill_inode_item(struct btrfs
+ struct btrfs_inode_item *item,
+ struct inode *inode)
+ {
+- btrfs_set_inode_uid(leaf, item, inode->i_uid);
+- btrfs_set_inode_gid(leaf, item, inode->i_gid);
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
++
++ btrfs_set_inode_uid(leaf, item, uid);
++ btrfs_set_inode_gid(leaf, item, gid);
++#ifdef CONFIG_TAGGING_INTERN
++ btrfs_set_inode_tag(leaf, item, inode->i_tag);
++#endif
++
+ btrfs_set_inode_size(leaf, item, BTRFS_I(inode)->disk_i_size);
+ btrfs_set_inode_mode(leaf, item, inode->i_mode);
+ btrfs_set_inode_nlink(leaf, item, inode->i_nlink);
+@@ -4065,6 +4081,7 @@ static struct inode *btrfs_new_inode(str
+ } else
+ inode->i_gid = current_fsgid();
+
++ inode->i_tag = dx_current_fstag(root->fs_info->sb);
+ inode->i_mode = mode;
+ inode->i_ino = objectid;
+ inode_set_bytes(inode, 0);
+@@ -5836,6 +5853,7 @@ static const struct inode_operations btr
+ .listxattr = btrfs_listxattr,
+ .removexattr = btrfs_removexattr,
+ .permission = btrfs_permission,
++ .sync_flags = btrfs_sync_flags,
+ };
+ static const struct inode_operations btrfs_dir_ro_inode_operations = {
+ .lookup = btrfs_lookup,
+@@ -5911,6 +5929,7 @@ static const struct inode_operations btr
+ .permission = btrfs_permission,
+ .fallocate = btrfs_fallocate,
+ .fiemap = btrfs_fiemap,
++ .sync_flags = btrfs_sync_flags,
+ };
+ static const struct inode_operations btrfs_special_inode_operations = {
+ .getattr = btrfs_getattr,
+diff -NurpP --minimal linux-2.6.32.1/fs/btrfs/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/ioctl.c
+--- linux-2.6.32.1/fs/btrfs/ioctl.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -67,10 +67,13 @@ static unsigned int btrfs_flags_to_ioctl
+ {
+ unsigned int iflags = 0;
+
+- if (flags & BTRFS_INODE_SYNC)
+- iflags |= FS_SYNC_FL;
+ if (flags & BTRFS_INODE_IMMUTABLE)
+ iflags |= FS_IMMUTABLE_FL;
++ if (flags & BTRFS_INODE_IXUNLINK)
++ iflags |= FS_IXUNLINK_FL;
++
++ if (flags & BTRFS_INODE_SYNC)
++ iflags |= FS_SYNC_FL;
+ if (flags & BTRFS_INODE_APPEND)
+ iflags |= FS_APPEND_FL;
+ if (flags & BTRFS_INODE_NODUMP)
+@@ -80,28 +83,78 @@ static unsigned int btrfs_flags_to_ioctl
+ if (flags & BTRFS_INODE_DIRSYNC)
+ iflags |= FS_DIRSYNC_FL;
+
++ if (flags & BTRFS_INODE_BARRIER)
++ iflags |= FS_BARRIER_FL;
++ if (flags & BTRFS_INODE_COW)
++ iflags |= FS_COW_FL;
+ return iflags;
+ }
+
+ /*
+- * Update inode->i_flags based on the btrfs internal flags.
++ * Update inode->i_(v)flags based on the btrfs internal flags.
+ */
+ void btrfs_update_iflags(struct inode *inode)
+ {
+ struct btrfs_inode *ip = BTRFS_I(inode);
+
+- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+- if (ip->flags & BTRFS_INODE_SYNC)
+- inode->i_flags |= S_SYNC;
+ if (ip->flags & BTRFS_INODE_IMMUTABLE)
+ inode->i_flags |= S_IMMUTABLE;
++ if (ip->flags & BTRFS_INODE_IXUNLINK)
++ inode->i_flags |= S_IXUNLINK;
++
++ if (ip->flags & BTRFS_INODE_SYNC)
++ inode->i_flags |= S_SYNC;
+ if (ip->flags & BTRFS_INODE_APPEND)
+ inode->i_flags |= S_APPEND;
+ if (ip->flags & BTRFS_INODE_NOATIME)
+ inode->i_flags |= S_NOATIME;
+ if (ip->flags & BTRFS_INODE_DIRSYNC)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (ip->flags & BTRFS_INODE_BARRIER)
++ inode->i_vflags |= V_BARRIER;
++ if (ip->flags & BTRFS_INODE_COW)
++ inode->i_vflags |= V_COW;
++}
++
++/*
++ * Update btrfs internal flags from inode->i_(v)flags.
++ */
++void btrfs_update_flags(struct inode *inode)
++{
++ struct btrfs_inode *ip = BTRFS_I(inode);
++
++ unsigned int flags = inode->i_flags;
++ unsigned int vflags = inode->i_vflags;
++
++ ip->flags &= ~(BTRFS_INODE_SYNC | BTRFS_INODE_APPEND |
++ BTRFS_INODE_IMMUTABLE | BTRFS_INODE_IXUNLINK |
++ BTRFS_INODE_NOATIME | BTRFS_INODE_DIRSYNC |
++ BTRFS_INODE_BARRIER | BTRFS_INODE_COW);
++
++ if (flags & S_IMMUTABLE)
++ ip->flags |= BTRFS_INODE_IMMUTABLE;
++ if (flags & S_IXUNLINK)
++ ip->flags |= BTRFS_INODE_IXUNLINK;
++
++ if (flags & S_SYNC)
++ ip->flags |= BTRFS_INODE_SYNC;
++ if (flags & S_APPEND)
++ ip->flags |= BTRFS_INODE_APPEND;
++ if (flags & S_NOATIME)
++ ip->flags |= BTRFS_INODE_NOATIME;
++ if (flags & S_DIRSYNC)
++ ip->flags |= BTRFS_INODE_DIRSYNC;
++
++ if (vflags & V_BARRIER)
++ ip->flags |= BTRFS_INODE_BARRIER;
++ if (vflags & V_COW)
++ ip->flags |= BTRFS_INODE_COW;
+ }
+
+ /*
+@@ -119,7 +172,7 @@ void btrfs_inherit_iflags(struct inode *
+ flags = BTRFS_I(dir)->flags;
+
+ if (S_ISREG(inode->i_mode))
+- flags &= ~BTRFS_INODE_DIRSYNC;
++ flags &= ~(BTRFS_INODE_DIRSYNC | BTRFS_INODE_BARRIER);
+ else if (!S_ISDIR(inode->i_mode))
+ flags &= (BTRFS_INODE_NODUMP | BTRFS_INODE_NOATIME);
+
+@@ -127,6 +180,30 @@ void btrfs_inherit_iflags(struct inode *
+ btrfs_update_iflags(inode);
+ }
+
++int btrfs_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ struct btrfs_inode *ip = BTRFS_I(inode);
++ struct btrfs_root *root = ip->root;
++ struct btrfs_trans_handle *trans;
++ int ret;
++
++ trans = btrfs_join_transaction(root, 1);
++ BUG_ON(!trans);
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ btrfs_update_flags(inode);
++
++ ret = btrfs_update_inode(trans, root, inode);
++ BUG_ON(ret);
++
++ btrfs_update_iflags(inode);
++ inode->i_ctime = CURRENT_TIME;
++ btrfs_end_transaction(trans, root);
++
++ return 0;
++}
++
+ static int btrfs_ioctl_getflags(struct file *file, void __user *arg)
+ {
+ struct btrfs_inode *ip = BTRFS_I(file->f_path.dentry->d_inode);
+@@ -149,6 +226,7 @@ static int btrfs_ioctl_setflags(struct f
+ if (copy_from_user(&flags, arg, sizeof(flags)))
+ return -EFAULT;
+
++ /* maybe add FS_IXUNLINK_FL ? */
+ if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \
+ FS_NOATIME_FL | FS_NODUMP_FL | \
+ FS_SYNC_FL | FS_DIRSYNC_FL))
+@@ -161,7 +239,8 @@ static int btrfs_ioctl_setflags(struct f
+
+ flags = btrfs_mask_flags(inode->i_mode, flags);
+ oldflags = btrfs_flags_to_ioctl(ip->flags);
+- if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) {
++ if ((flags ^ oldflags) & (FS_APPEND_FL |
++ FS_IMMUTABLE_FL | FS_IXUNLINK_FL)) {
+ if (!capable(CAP_LINUX_IMMUTABLE)) {
+ ret = -EPERM;
+ goto out_unlock;
+@@ -172,14 +251,19 @@ static int btrfs_ioctl_setflags(struct f
+ if (ret)
+ goto out_unlock;
+
+- if (flags & FS_SYNC_FL)
+- ip->flags |= BTRFS_INODE_SYNC;
+- else
+- ip->flags &= ~BTRFS_INODE_SYNC;
+ if (flags & FS_IMMUTABLE_FL)
+ ip->flags |= BTRFS_INODE_IMMUTABLE;
+ else
+ ip->flags &= ~BTRFS_INODE_IMMUTABLE;
++ if (flags & FS_IXUNLINK_FL)
++ ip->flags |= BTRFS_INODE_IXUNLINK;
++ else
++ ip->flags &= ~BTRFS_INODE_IXUNLINK;
++
++ if (flags & FS_SYNC_FL)
++ ip->flags |= BTRFS_INODE_SYNC;
++ else
++ ip->flags &= ~BTRFS_INODE_SYNC;
+ if (flags & FS_APPEND_FL)
+ ip->flags |= BTRFS_INODE_APPEND;
+ else
+diff -NurpP --minimal linux-2.6.32.1/fs/btrfs/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/super.c
+--- linux-2.6.32.1/fs/btrfs/super.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/btrfs/super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -67,7 +67,7 @@ enum {
+ Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier,
+ Opt_ssd, Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl,
+ Opt_compress, Opt_notreelog, Opt_ratio, Opt_flushoncommit,
+- Opt_discard, Opt_err,
++ Opt_tag, Opt_notag, Opt_tagid, Opt_discard, Opt_err,
+ };
+
+ static match_table_t tokens = {
+@@ -90,6 +90,9 @@ static match_table_t tokens = {
+ {Opt_flushoncommit, "flushoncommit"},
+ {Opt_ratio, "metadata_ratio=%d"},
+ {Opt_discard, "discard"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL},
+ };
+
+@@ -262,6 +265,22 @@ int btrfs_parse_options(struct btrfs_roo
+ case Opt_discard:
+ btrfs_set_opt(info->mount_opt, DISCARD);
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ printk(KERN_INFO "btrfs: use tagging\n");
++ btrfs_set_opt(info->mount_opt, TAGGED);
++ break;
++ case Opt_notag:
++ printk(KERN_INFO "btrfs: disabled tagging\n");
++ btrfs_clear_opt(info->mount_opt, TAGGED);
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ btrfs_set_opt(info->mount_opt, TAGGED);
++ break;
++#endif
+ default:
+ break;
+ }
+@@ -575,6 +594,12 @@ static int btrfs_remount(struct super_bl
+ if (ret)
+ return -EINVAL;
+
++ if (btrfs_test_opt(root, TAGGED) && !(sb->s_flags & MS_TAGGED)) {
++ printk("btrfs: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ return -EINVAL;
++ }
++
+ if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+ return 0;
+
+diff -NurpP --minimal linux-2.6.32.1/fs/char_dev.c linux-2.6.32.1-vs2.3.0.36.27/fs/char_dev.c
+--- linux-2.6.32.1/fs/char_dev.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/char_dev.c 2009-12-03 20:04:56.000000000 +0100
+@@ -20,6 +20,8 @@
+ #include <linux/cdev.h>
+ #include <linux/mutex.h>
+ #include <linux/backing-dev.h>
++#include <linux/vs_context.h>
++#include <linux/vs_device.h>
+
+ #include "internal.h"
+
+@@ -368,14 +370,21 @@ static int chrdev_open(struct inode *ino
+ struct cdev *p;
+ struct cdev *new = NULL;
+ int ret = 0;
++ dev_t mdev;
++
++ if (!vs_map_chrdev(inode->i_rdev, &mdev, DATTR_OPEN))
++ return -EPERM;
++ inode->i_mdev = mdev;
+
+ spin_lock(&cdev_lock);
+ p = inode->i_cdev;
+ if (!p) {
+ struct kobject *kobj;
+ int idx;
++
+ spin_unlock(&cdev_lock);
+- kobj = kobj_lookup(cdev_map, inode->i_rdev, &idx);
++
++ kobj = kobj_lookup(cdev_map, mdev, &idx);
+ if (!kobj)
+ return -ENXIO;
+ new = container_of(kobj, struct cdev, kobj);
+diff -NurpP --minimal linux-2.6.32.1/fs/dcache.c linux-2.6.32.1-vs2.3.0.36.27/fs/dcache.c
+--- linux-2.6.32.1/fs/dcache.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/dcache.c 2009-12-03 20:04:56.000000000 +0100
+@@ -33,6 +33,7 @@
+ #include <linux/bootmem.h>
+ #include <linux/fs_struct.h>
+ #include <linux/hardirq.h>
++#include <linux/vs_limit.h>
+ #include "internal.h"
+
+ int sysctl_vfs_cache_pressure __read_mostly = 100;
+@@ -230,6 +231,8 @@ repeat:
+ return;
+ }
+
++ vx_dentry_dec(dentry);
++
+ /*
+ * AV: ->d_delete() is _NOT_ allowed to block now.
+ */
+@@ -321,6 +324,7 @@ static inline struct dentry * __dget_loc
+ {
+ atomic_inc(&dentry->d_count);
+ dentry_lru_del_init(dentry);
++ vx_dentry_inc(dentry);
+ return dentry;
+ }
+
+@@ -919,6 +923,9 @@ struct dentry *d_alloc(struct dentry * p
+ struct dentry *dentry;
+ char *dname;
+
++ if (!vx_dentry_avail(1))
++ return NULL;
++
+ dentry = kmem_cache_alloc(dentry_cache, GFP_KERNEL);
+ if (!dentry)
+ return NULL;
+@@ -964,6 +971,7 @@ struct dentry *d_alloc(struct dentry * p
+ if (parent)
+ list_add(&dentry->d_u.d_child, &parent->d_subdirs);
+ dentry_stat.nr_dentry++;
++ vx_dentry_inc(dentry);
+ spin_unlock(&dcache_lock);
+
+ return dentry;
+@@ -1407,6 +1415,7 @@ struct dentry * __d_lookup(struct dentry
+ }
+
+ atomic_inc(&dentry->d_count);
++ vx_dentry_inc(dentry);
+ found = dentry;
+ spin_unlock(&dentry->d_lock);
+ break;
+diff -NurpP --minimal linux-2.6.32.1/fs/devpts/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/devpts/inode.c
+--- linux-2.6.32.1/fs/devpts/inode.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/devpts/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -24,6 +24,7 @@
+ #include <linux/parser.h>
+ #include <linux/fsnotify.h>
+ #include <linux/seq_file.h>
++#include <linux/vs_base.h>
+
+ #define DEVPTS_DEFAULT_MODE 0600
+ /*
+@@ -35,6 +36,20 @@
+ #define DEVPTS_DEFAULT_PTMX_MODE 0000
+ #define PTMX_MINOR 2
+
++static int devpts_permission(struct inode *inode, int mask)
++{
++ int ret = -EACCES;
++
++ /* devpts is xid tagged */
++ if (vx_check((xid_t)inode->i_tag, VS_WATCH_P | VS_IDENT))
++ ret = generic_permission(inode, mask, NULL);
++ return ret;
++}
++
++static struct inode_operations devpts_file_inode_operations = {
++ .permission = devpts_permission,
++};
++
+ extern int pty_limit; /* Config limit on Unix98 ptys */
+ static DEFINE_MUTEX(allocated_ptys_lock);
+
+@@ -262,6 +277,25 @@ static int devpts_show_options(struct se
+ return 0;
+ }
+
++static int devpts_filter(struct dentry *de)
++{
++ /* devpts is xid tagged */
++ return vx_check((xid_t)de->d_inode->i_tag, VS_WATCH_P | VS_IDENT);
++}
++
++static int devpts_readdir(struct file * filp, void * dirent, filldir_t filldir)
++{
++ return dcache_readdir_filter(filp, dirent, filldir, devpts_filter);
++}
++
++static struct file_operations devpts_dir_operations = {
++ .open = dcache_dir_open,
++ .release = dcache_dir_close,
++ .llseek = dcache_dir_lseek,
++ .read = generic_read_dir,
++ .readdir = devpts_readdir,
++};
++
+ static const struct super_operations devpts_sops = {
+ .statfs = simple_statfs,
+ .remount_fs = devpts_remount,
+@@ -301,12 +335,15 @@ devpts_fill_super(struct super_block *s,
+ inode = new_inode(s);
+ if (!inode)
+ goto free_fsi;
++
+ inode->i_ino = 1;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+ inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
+ inode->i_op = &simple_dir_inode_operations;
+- inode->i_fop = &simple_dir_operations;
++ inode->i_fop = &devpts_dir_operations;
+ inode->i_nlink = 2;
++ /* devpts is xid tagged */
++ inode->i_tag = (tag_t)vx_current_xid();
+
+ s->s_root = d_alloc_root(inode);
+ if (s->s_root)
+@@ -497,6 +534,9 @@ int devpts_pty_new(struct inode *ptmx_in
+ inode->i_gid = opts->setgid ? opts->gid : current_fsgid();
+ inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+ init_special_inode(inode, S_IFCHR|opts->mode, device);
++ /* devpts is xid tagged */
++ inode->i_tag = (tag_t)vx_current_xid();
++ inode->i_op = &devpts_file_inode_operations;
+ inode->i_private = tty;
+ tty->driver_data = inode;
+
+diff -NurpP --minimal linux-2.6.32.1/fs/exec.c linux-2.6.32.1-vs2.3.0.36.27/fs/exec.c
+--- linux-2.6.32.1/fs/exec.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/exec.c 2009-12-03 20:04:56.000000000 +0100
+@@ -251,7 +251,9 @@ static int __bprm_mm_init(struct linux_b
+ if (err)
+ goto err;
+
+- mm->stack_vm = mm->total_vm = 1;
++ mm->total_vm = 0;
++ vx_vmpages_inc(mm);
++ mm->stack_vm = 1;
+ up_write(&mm->mmap_sem);
+ bprm->p = vma->vm_end - sizeof(void *);
+ return 0;
+@@ -1474,7 +1476,7 @@ static int format_corename(char *corenam
+ /* UNIX time of coredump */
+ case 't': {
+ struct timeval tv;
+- do_gettimeofday(&tv);
++ vx_gettimeofday(&tv);
+ rc = snprintf(out_ptr, out_end - out_ptr,
+ "%lu", tv.tv_sec);
+ if (rc > out_end - out_ptr)
+diff -NurpP --minimal linux-2.6.32.1/fs/ext2/balloc.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/balloc.c
+--- linux-2.6.32.1/fs/ext2/balloc.c 2009-06-11 17:13:03.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/balloc.c 2009-12-03 20:04:56.000000000 +0100
+@@ -701,7 +701,6 @@ ext2_try_to_allocate(struct super_block
+ start = 0;
+ end = EXT2_BLOCKS_PER_GROUP(sb);
+ }
+-
+ BUG_ON(start > EXT2_BLOCKS_PER_GROUP(sb));
+
+ repeat:
+diff -NurpP --minimal linux-2.6.32.1/fs/ext2/ext2.h linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/ext2.h
+--- linux-2.6.32.1/fs/ext2/ext2.h 2009-09-10 15:26:21.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/ext2.h 2009-12-03 20:04:56.000000000 +0100
+@@ -131,6 +131,7 @@ extern int ext2_fiemap(struct inode *ino
+ int __ext2_write_begin(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata);
++extern int ext2_sync_flags(struct inode *, int, int);
+
+ /* ioctl.c */
+ extern long ext2_ioctl(struct file *, unsigned int, unsigned long);
+diff -NurpP --minimal linux-2.6.32.1/fs/ext2/file.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/file.c
+--- linux-2.6.32.1/fs/ext2/file.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/file.c 2009-12-03 20:04:56.000000000 +0100
+@@ -87,4 +87,5 @@ const struct inode_operations ext2_file_
+ .setattr = ext2_setattr,
+ .check_acl = ext2_check_acl,
+ .fiemap = ext2_fiemap,
++ .sync_flags = ext2_sync_flags,
+ };
+diff -NurpP --minimal linux-2.6.32.1/fs/ext2/ialloc.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/ialloc.c
+--- linux-2.6.32.1/fs/ext2/ialloc.c 2009-06-11 17:13:03.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/ialloc.c 2009-12-03 20:04:56.000000000 +0100
+@@ -17,6 +17,7 @@
+ #include <linux/backing-dev.h>
+ #include <linux/buffer_head.h>
+ #include <linux/random.h>
++#include <linux/vs_tag.h>
+ #include "ext2.h"
+ #include "xattr.h"
+ #include "acl.h"
+@@ -560,6 +561,7 @@ got:
+ } else
+ inode->i_gid = current_fsgid();
+ inode->i_mode = mode;
++ inode->i_tag = dx_current_fstag(sb);
+
+ inode->i_ino = ino;
+ inode->i_blocks = 0;
+diff -NurpP --minimal linux-2.6.32.1/fs/ext2/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/inode.c
+--- linux-2.6.32.1/fs/ext2/inode.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -33,6 +33,7 @@
+ #include <linux/mpage.h>
+ #include <linux/fiemap.h>
+ #include <linux/namei.h>
++#include <linux/vs_tag.h>
+ #include "ext2.h"
+ #include "acl.h"
+ #include "xip.h"
+@@ -1040,7 +1041,7 @@ void ext2_truncate(struct inode *inode)
+ return;
+ if (ext2_inode_is_fast_symlink(inode))
+ return;
+- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
+ return;
+
+ blocksize = inode->i_sb->s_blocksize;
+@@ -1178,36 +1179,61 @@ void ext2_set_inode_flags(struct inode *
+ {
+ unsigned int flags = EXT2_I(inode)->i_flags;
+
+- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
++
++
++ if (flags & EXT2_IMMUTABLE_FL)
++ inode->i_flags |= S_IMMUTABLE;
++ if (flags & EXT2_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++
+ if (flags & EXT2_SYNC_FL)
+ inode->i_flags |= S_SYNC;
+ if (flags & EXT2_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+- if (flags & EXT2_IMMUTABLE_FL)
+- inode->i_flags |= S_IMMUTABLE;
+ if (flags & EXT2_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ if (flags & EXT2_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & EXT2_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & EXT2_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ /* Propagate flags from i_flags to EXT2_I(inode)->i_flags */
+ void ext2_get_inode_flags(struct ext2_inode_info *ei)
+ {
+ unsigned int flags = ei->vfs_inode.i_flags;
++ unsigned int vflags = ei->vfs_inode.i_vflags;
++
++ ei->i_flags &= ~(EXT2_SYNC_FL | EXT2_APPEND_FL |
++ EXT2_IMMUTABLE_FL | EXT2_IXUNLINK_FL |
++ EXT2_NOATIME_FL | EXT2_DIRSYNC_FL |
++ EXT2_BARRIER_FL | EXT2_COW_FL);
++
++ if (flags & S_IMMUTABLE)
++ ei->i_flags |= EXT2_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ ei->i_flags |= EXT2_IXUNLINK_FL;
+
+- ei->i_flags &= ~(EXT2_SYNC_FL|EXT2_APPEND_FL|
+- EXT2_IMMUTABLE_FL|EXT2_NOATIME_FL|EXT2_DIRSYNC_FL);
+ if (flags & S_SYNC)
+ ei->i_flags |= EXT2_SYNC_FL;
+ if (flags & S_APPEND)
+ ei->i_flags |= EXT2_APPEND_FL;
+- if (flags & S_IMMUTABLE)
+- ei->i_flags |= EXT2_IMMUTABLE_FL;
+ if (flags & S_NOATIME)
+ ei->i_flags |= EXT2_NOATIME_FL;
+ if (flags & S_DIRSYNC)
+ ei->i_flags |= EXT2_DIRSYNC_FL;
++
++ if (vflags & V_BARRIER)
++ ei->i_flags |= EXT2_BARRIER_FL;
++ if (vflags & V_COW)
++ ei->i_flags |= EXT2_COW_FL;
+ }
+
+ struct inode *ext2_iget (struct super_block *sb, unsigned long ino)
+@@ -1217,6 +1243,8 @@ struct inode *ext2_iget (struct super_bl
+ struct ext2_inode *raw_inode;
+ struct inode *inode;
+ long ret = -EIO;
++ uid_t uid;
++ gid_t gid;
+ int n;
+
+ inode = iget_locked(sb, ino);
+@@ -1235,12 +1263,17 @@ struct inode *ext2_iget (struct super_bl
+ }
+
+ inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ if (!(test_opt (inode->i_sb, NO_UID32))) {
+- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+ }
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ le16_to_cpu(raw_inode->i_raw_tag));
++
+ inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+ inode->i_size = le32_to_cpu(raw_inode->i_size);
+ inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
+@@ -1338,8 +1371,8 @@ int ext2_write_inode(struct inode *inode
+ struct ext2_inode_info *ei = EXT2_I(inode);
+ struct super_block *sb = inode->i_sb;
+ ino_t ino = inode->i_ino;
+- uid_t uid = inode->i_uid;
+- gid_t gid = inode->i_gid;
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
+ struct buffer_head * bh;
+ struct ext2_inode * raw_inode = ext2_get_inode(sb, ino, &bh);
+ int n;
+@@ -1375,6 +1408,9 @@ int ext2_write_inode(struct inode *inode
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
++#ifdef CONFIG_TAGGING_INTERN
++ raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
++#endif
+ raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+ raw_inode->i_size = cpu_to_le32(inode->i_size);
+ raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
+@@ -1456,7 +1492,8 @@ int ext2_setattr(struct dentry *dentry,
+ if (error)
+ return error;
+ if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
+- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
++ (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) ||
++ (iattr->ia_valid & ATTR_TAG && iattr->ia_tag != inode->i_tag)) {
+ error = vfs_dq_transfer(inode, iattr) ? -EDQUOT : 0;
+ if (error)
+ return error;
+diff -NurpP --minimal linux-2.6.32.1/fs/ext2/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/ioctl.c
+--- linux-2.6.32.1/fs/ext2/ioctl.c 2009-09-10 15:26:21.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -17,6 +17,16 @@
+ #include <asm/uaccess.h>
+
+
++int ext2_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ ext2_get_inode_flags(EXT2_I(inode));
++ inode->i_ctime = CURRENT_TIME_SEC;
++ mark_inode_dirty(inode);
++ return 0;
++}
++
+ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_dentry->d_inode;
+@@ -51,6 +61,11 @@ long ext2_ioctl(struct file *filp, unsig
+
+ flags = ext2_mask_flags(inode->i_mode, flags);
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
++
+ mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode)) {
+@@ -66,7 +81,9 @@ long ext2_ioctl(struct file *filp, unsig
+ *
+ * This test looks nicer. Thanks to Pauline Middelink
+ */
+- if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) {
++ if ((oldflags & EXT2_IMMUTABLE_FL) ||
++ ((flags ^ oldflags) & (EXT2_APPEND_FL |
++ EXT2_IMMUTABLE_FL | EXT2_IXUNLINK_FL))) {
+ if (!capable(CAP_LINUX_IMMUTABLE)) {
+ mutex_unlock(&inode->i_mutex);
+ ret = -EPERM;
+@@ -74,7 +91,7 @@ long ext2_ioctl(struct file *filp, unsig
+ }
+ }
+
+- flags = flags & EXT2_FL_USER_MODIFIABLE;
++ flags &= EXT2_FL_USER_MODIFIABLE;
+ flags |= oldflags & ~EXT2_FL_USER_MODIFIABLE;
+ ei->i_flags = flags;
+ mutex_unlock(&inode->i_mutex);
+diff -NurpP --minimal linux-2.6.32.1/fs/ext2/namei.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/namei.c
+--- linux-2.6.32.1/fs/ext2/namei.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/namei.c 2009-12-03 20:04:56.000000000 +0100
+@@ -31,6 +31,7 @@
+ */
+
+ #include <linux/pagemap.h>
++#include <linux/vs_tag.h>
+ #include "ext2.h"
+ #include "xattr.h"
+ #include "acl.h"
+@@ -74,6 +75,7 @@ static struct dentry *ext2_lookup(struct
+ return ERR_PTR(-EIO);
+ } else {
+ return ERR_CAST(inode);
++ dx_propagate_tag(nd, inode);
+ }
+ }
+ }
+@@ -401,6 +403,7 @@ const struct inode_operations ext2_dir_i
+ #endif
+ .setattr = ext2_setattr,
+ .check_acl = ext2_check_acl,
++ .sync_flags = ext2_sync_flags,
+ };
+
+ const struct inode_operations ext2_special_inode_operations = {
+diff -NurpP --minimal linux-2.6.32.1/fs/ext2/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/super.c
+--- linux-2.6.32.1/fs/ext2/super.c 2009-09-10 15:26:21.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext2/super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -382,7 +382,8 @@ enum {
+ Opt_err_ro, Opt_nouid32, Opt_nocheck, Opt_debug,
+ Opt_oldalloc, Opt_orlov, Opt_nobh, Opt_user_xattr, Opt_nouser_xattr,
+ Opt_acl, Opt_noacl, Opt_xip, Opt_ignore, Opt_err, Opt_quota,
+- Opt_usrquota, Opt_grpquota, Opt_reservation, Opt_noreservation
++ Opt_usrquota, Opt_grpquota, Opt_reservation, Opt_noreservation,
++ Opt_tag, Opt_notag, Opt_tagid
+ };
+
+ static const match_table_t tokens = {
+@@ -410,6 +411,9 @@ static const match_table_t tokens = {
+ {Opt_acl, "acl"},
+ {Opt_noacl, "noacl"},
+ {Opt_xip, "xip"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_grpquota, "grpquota"},
+ {Opt_ignore, "noquota"},
+ {Opt_quota, "quota"},
+@@ -480,6 +484,20 @@ static int parse_options (char * options
+ case Opt_nouid32:
+ set_opt (sbi->s_mount_opt, NO_UID32);
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++ case Opt_notag:
++ clear_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
+ case Opt_nocheck:
+ clear_opt (sbi->s_mount_opt, CHECK);
+ break;
+@@ -829,6 +847,8 @@ static int ext2_fill_super(struct super_
+ if (!parse_options ((char *) data, sbi))
+ goto failed_mount;
+
++ if (EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
+ MS_POSIXACL : 0);
+@@ -1175,6 +1195,14 @@ static int ext2_remount (struct super_bl
+ goto restore_opts;
+ }
+
++ if ((sbi->s_mount_opt & EXT2_MOUNT_TAGGED) &&
++ !(sb->s_flags & MS_TAGGED)) {
++ printk("EXT2-fs: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ err = -EINVAL;
++ goto restore_opts;
++ }
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+
+diff -NurpP --minimal linux-2.6.32.1/fs/ext3/file.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/file.c
+--- linux-2.6.32.1/fs/ext3/file.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/file.c 2009-12-03 20:04:56.000000000 +0100
+@@ -80,5 +80,6 @@ const struct inode_operations ext3_file_
+ #endif
+ .check_acl = ext3_check_acl,
+ .fiemap = ext3_fiemap,
++ .sync_flags = ext3_sync_flags,
+ };
+
+diff -NurpP --minimal linux-2.6.32.1/fs/ext3/ialloc.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/ialloc.c
+--- linux-2.6.32.1/fs/ext3/ialloc.c 2009-09-10 15:26:21.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/ialloc.c 2009-12-03 20:04:56.000000000 +0100
+@@ -23,6 +23,7 @@
+ #include <linux/buffer_head.h>
+ #include <linux/random.h>
+ #include <linux/bitops.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/byteorder.h>
+
+@@ -548,6 +549,7 @@ got:
+ } else
+ inode->i_gid = current_fsgid();
+ inode->i_mode = mode;
++ inode->i_tag = dx_current_fstag(sb);
+
+ inode->i_ino = ino;
+ /* This is the optimal IO size (for stat), not the fs block size */
+diff -NurpP --minimal linux-2.6.32.1/fs/ext3/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/inode.c
+--- linux-2.6.32.1/fs/ext3/inode.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -38,6 +38,7 @@
+ #include <linux/bio.h>
+ #include <linux/fiemap.h>
+ #include <linux/namei.h>
++#include <linux/vs_tag.h>
+ #include "xattr.h"
+ #include "acl.h"
+
+@@ -2333,7 +2334,7 @@ static void ext3_free_branches(handle_t
+
+ int ext3_can_truncate(struct inode *inode)
+ {
+- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
+ return 0;
+ if (S_ISREG(inode->i_mode))
+ return 1;
+@@ -2718,36 +2719,60 @@ void ext3_set_inode_flags(struct inode *
+ {
+ unsigned int flags = EXT3_I(inode)->i_flags;
+
+- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
++
++ if (flags & EXT3_IMMUTABLE_FL)
++ inode->i_flags |= S_IMMUTABLE;
++ if (flags & EXT3_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++
+ if (flags & EXT3_SYNC_FL)
+ inode->i_flags |= S_SYNC;
+ if (flags & EXT3_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+- if (flags & EXT3_IMMUTABLE_FL)
+- inode->i_flags |= S_IMMUTABLE;
+ if (flags & EXT3_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ if (flags & EXT3_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & EXT3_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & EXT3_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ /* Propagate flags from i_flags to EXT3_I(inode)->i_flags */
+ void ext3_get_inode_flags(struct ext3_inode_info *ei)
+ {
+ unsigned int flags = ei->vfs_inode.i_flags;
++ unsigned int vflags = ei->vfs_inode.i_vflags;
++
++ ei->i_flags &= ~(EXT3_SYNC_FL | EXT3_APPEND_FL |
++ EXT3_IMMUTABLE_FL | EXT3_IXUNLINK_FL |
++ EXT3_NOATIME_FL | EXT3_DIRSYNC_FL |
++ EXT3_BARRIER_FL | EXT3_COW_FL);
++
++ if (flags & S_IMMUTABLE)
++ ei->i_flags |= EXT3_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ ei->i_flags |= EXT3_IXUNLINK_FL;
+
+- ei->i_flags &= ~(EXT3_SYNC_FL|EXT3_APPEND_FL|
+- EXT3_IMMUTABLE_FL|EXT3_NOATIME_FL|EXT3_DIRSYNC_FL);
+ if (flags & S_SYNC)
+ ei->i_flags |= EXT3_SYNC_FL;
+ if (flags & S_APPEND)
+ ei->i_flags |= EXT3_APPEND_FL;
+- if (flags & S_IMMUTABLE)
+- ei->i_flags |= EXT3_IMMUTABLE_FL;
+ if (flags & S_NOATIME)
+ ei->i_flags |= EXT3_NOATIME_FL;
+ if (flags & S_DIRSYNC)
+ ei->i_flags |= EXT3_DIRSYNC_FL;
++
++ if (vflags & V_BARRIER)
++ ei->i_flags |= EXT3_BARRIER_FL;
++ if (vflags & V_COW)
++ ei->i_flags |= EXT3_COW_FL;
+ }
+
+ struct inode *ext3_iget(struct super_block *sb, unsigned long ino)
+@@ -2761,6 +2786,8 @@ struct inode *ext3_iget(struct super_blo
+ transaction_t *transaction;
+ long ret;
+ int block;
++ uid_t uid;
++ gid_t gid;
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+@@ -2777,12 +2804,17 @@ struct inode *ext3_iget(struct super_blo
+ bh = iloc.bh;
+ raw_inode = ext3_raw_inode(&iloc);
+ inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ if(!(test_opt (inode->i_sb, NO_UID32))) {
+- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+ }
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ le16_to_cpu(raw_inode->i_raw_tag));
++
+ inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+ inode->i_size = le32_to_cpu(raw_inode->i_size);
+ inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
+@@ -2937,6 +2969,8 @@ static int ext3_do_update_inode(handle_t
+ struct ext3_inode *raw_inode = ext3_raw_inode(iloc);
+ struct ext3_inode_info *ei = EXT3_I(inode);
+ struct buffer_head *bh = iloc->bh;
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
+ int err = 0, rc, block;
+
+ again:
+@@ -2951,29 +2985,32 @@ again:
+ ext3_get_inode_flags(ei);
+ raw_inode->i_mode = cpu_to_le16(inode->i_mode);
+ if(!(test_opt(inode->i_sb, NO_UID32))) {
+- raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
+- raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
++ raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));
++ raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid));
+ /*
+ * Fix up interoperability with old kernels. Otherwise, old inodes get
+ * re-used with the upper 16 bits of the uid/gid intact
+ */
+ if(!ei->i_dtime) {
+ raw_inode->i_uid_high =
+- cpu_to_le16(high_16_bits(inode->i_uid));
++ cpu_to_le16(high_16_bits(uid));
+ raw_inode->i_gid_high =
+- cpu_to_le16(high_16_bits(inode->i_gid));
++ cpu_to_le16(high_16_bits(gid));
+ } else {
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
+ } else {
+ raw_inode->i_uid_low =
+- cpu_to_le16(fs_high2lowuid(inode->i_uid));
++ cpu_to_le16(fs_high2lowuid(uid));
+ raw_inode->i_gid_low =
+- cpu_to_le16(fs_high2lowgid(inode->i_gid));
++ cpu_to_le16(fs_high2lowgid(gid));
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
++#ifdef CONFIG_TAGGING_INTERN
++ raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
++#endif
+ raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+ raw_inode->i_size = cpu_to_le32(ei->i_disksize);
+ raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
+@@ -3131,7 +3168,8 @@ int ext3_setattr(struct dentry *dentry,
+ return error;
+
+ if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
+ handle_t *handle;
+
+ /* (user+group)*(old+new) structure, inode write (sb,
+@@ -3153,6 +3191,8 @@ int ext3_setattr(struct dentry *dentry,
+ inode->i_uid = attr->ia_uid;
+ if (attr->ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
++ if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ error = ext3_mark_inode_dirty(handle, inode);
+ ext3_journal_stop(handle);
+ }
+diff -NurpP --minimal linux-2.6.32.1/fs/ext3/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/ioctl.c
+--- linux-2.6.32.1/fs/ext3/ioctl.c 2009-06-11 17:13:03.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -8,6 +8,7 @@
+ */
+
+ #include <linux/fs.h>
++#include <linux/mount.h>
+ #include <linux/jbd.h>
+ #include <linux/capability.h>
+ #include <linux/ext3_fs.h>
+@@ -17,6 +18,34 @@
+ #include <linux/compat.h>
+ #include <asm/uaccess.h>
+
++
++int ext3_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ handle_t *handle = NULL;
++ struct ext3_iloc iloc;
++ int err;
++
++ handle = ext3_journal_start(inode, 1);
++ if (IS_ERR(handle))
++ return PTR_ERR(handle);
++
++ if (IS_SYNC(inode))
++ handle->h_sync = 1;
++ err = ext3_reserve_inode_write(handle, inode, &iloc);
++ if (err)
++ goto flags_err;
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ ext3_get_inode_flags(EXT3_I(inode));
++ inode->i_ctime = CURRENT_TIME_SEC;
++
++ err = ext3_mark_iloc_dirty(handle, inode, &iloc);
++flags_err:
++ ext3_journal_stop(handle);
++ return err;
++}
++
+ long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_dentry->d_inode;
+@@ -50,6 +79,11 @@ long ext3_ioctl(struct file *filp, unsig
+
+ flags = ext3_mask_flags(inode->i_mode, flags);
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
++
+ mutex_lock(&inode->i_mutex);
+
+ /* Is it quota file? Do not allow user to mess with it */
+@@ -68,7 +102,9 @@ long ext3_ioctl(struct file *filp, unsig
+ *
+ * This test looks nicer. Thanks to Pauline Middelink
+ */
+- if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
++ if ((oldflags & EXT3_IMMUTABLE_FL) ||
++ ((flags ^ oldflags) & (EXT3_APPEND_FL |
++ EXT3_IMMUTABLE_FL | EXT3_IXUNLINK_FL))) {
+ if (!capable(CAP_LINUX_IMMUTABLE))
+ goto flags_out;
+ }
+@@ -93,7 +129,7 @@ long ext3_ioctl(struct file *filp, unsig
+ if (err)
+ goto flags_err;
+
+- flags = flags & EXT3_FL_USER_MODIFIABLE;
++ flags &= EXT3_FL_USER_MODIFIABLE;
+ flags |= oldflags & ~EXT3_FL_USER_MODIFIABLE;
+ ei->i_flags = flags;
+
+diff -NurpP --minimal linux-2.6.32.1/fs/ext3/namei.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/namei.c
+--- linux-2.6.32.1/fs/ext3/namei.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/namei.c 2009-12-03 20:04:56.000000000 +0100
+@@ -36,6 +36,7 @@
+ #include <linux/quotaops.h>
+ #include <linux/buffer_head.h>
+ #include <linux/bio.h>
++#include <linux/vs_tag.h>
+
+ #include "namei.h"
+ #include "xattr.h"
+@@ -912,6 +913,7 @@ restart:
+ if (bh)
+ ll_rw_block(READ_META, 1, &bh);
+ }
++ dx_propagate_tag(nd, inode);
+ }
+ if ((bh = bh_use[ra_ptr++]) == NULL)
+ goto next;
+@@ -2446,6 +2448,7 @@ const struct inode_operations ext3_dir_i
+ .removexattr = generic_removexattr,
+ #endif
+ .check_acl = ext3_check_acl,
++ .sync_flags = ext3_sync_flags,
+ };
+
+ const struct inode_operations ext3_special_inode_operations = {
+diff -NurpP --minimal linux-2.6.32.1/fs/ext3/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/super.c
+--- linux-2.6.32.1/fs/ext3/super.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext3/super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -789,7 +789,7 @@ enum {
+ Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
+ Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
+ Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
+- Opt_grpquota
++ Opt_grpquota, Opt_tag, Opt_notag, Opt_tagid
+ };
+
+ static const match_table_t tokens = {
+@@ -842,6 +842,9 @@ static const match_table_t tokens = {
+ {Opt_usrquota, "usrquota"},
+ {Opt_barrier, "barrier=%u"},
+ {Opt_resize, "resize"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL},
+ };
+
+@@ -934,6 +937,20 @@ static int parse_options (char *options,
+ case Opt_nouid32:
+ set_opt (sbi->s_mount_opt, NO_UID32);
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++ case Opt_notag:
++ clear_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
+ case Opt_nocheck:
+ clear_opt (sbi->s_mount_opt, CHECK);
+ break;
+@@ -1658,6 +1675,9 @@ static int ext3_fill_super (struct super
+ NULL, 0))
+ goto failed_mount;
+
++ if (EXT3_SB(sb)->s_mount_opt & EXT3_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+
+@@ -2527,6 +2547,14 @@ static int ext3_remount (struct super_bl
+ if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
+ ext3_abort(sb, __func__, "Abort forced by user");
+
++ if ((sbi->s_mount_opt & EXT3_MOUNT_TAGGED) &&
++ !(sb->s_flags & MS_TAGGED)) {
++ printk("EXT3-fs: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ err = -EINVAL;
++ goto restore_opts;
++ }
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+
+diff -NurpP --minimal linux-2.6.32.1/fs/ext4/ext4.h linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/ext4.h
+--- linux-2.6.32.1/fs/ext4/ext4.h 2009-12-14 21:29:46.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/ext4.h 2009-12-14 22:20:55.000000000 +0100
+@@ -284,8 +284,12 @@ struct flex_groups {
+ #define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
+ #define EXT4_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
+ #define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
++#define EXT4_IXUNLINK_FL 0x08000000 /* Immutable invert on unlink */
+ #define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
+
++#define EXT4_BARRIER_FL 0x04000000 /* Barrier for chroot() */
++#define EXT4_COW_FL 0x20000000 /* Copy on Write marker */
++
+ #define EXT4_FL_USER_VISIBLE 0x000BDFFF /* User visible flags */
+ #define EXT4_FL_USER_MODIFIABLE 0x000B80FF /* User modifiable flags */
+
+@@ -469,7 +473,8 @@ struct ext4_inode {
+ __le16 l_i_file_acl_high;
+ __le16 l_i_uid_high; /* these 2 fields */
+ __le16 l_i_gid_high; /* were reserved2[0] */
+- __u32 l_i_reserved2;
++ __le16 l_i_tag; /* Context Tag */
++ __u16 l_i_reserved2;
+ } linux2;
+ struct {
+ __le16 h_i_reserved1; /* Obsoleted fragment number/size which are removed in ext4 */
+@@ -583,6 +588,7 @@ do { \
+ #define i_gid_low i_gid
+ #define i_uid_high osd2.linux2.l_i_uid_high
+ #define i_gid_high osd2.linux2.l_i_gid_high
++#define i_raw_tag osd2.linux2.l_i_tag
+ #define i_reserved2 osd2.linux2.l_i_reserved2
+
+ #elif defined(__GNU__)
+@@ -751,6 +757,7 @@ struct ext4_inode_info {
+ #define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */
+ #define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
+ #define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
++#define EXT4_MOUNT_TAGGED 0x400000 /* Enable Context Tags */
+ #define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */
+ #define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */
+ #define EXT4_MOUNT_I_VERSION 0x2000000 /* i_version support */
+@@ -1742,6 +1749,7 @@ extern int ext4_get_blocks(handle_t *han
+ struct buffer_head *bh, int flags);
+ extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ __u64 start, __u64 len);
++extern int ext4_sync_flags(struct inode *, int, int);
+ /* move_extent.c */
+ extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
+ __u64 start_orig, __u64 start_donor,
+diff -NurpP --minimal linux-2.6.32.1/fs/ext4/file.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/file.c
+--- linux-2.6.32.1/fs/ext4/file.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/file.c 2009-12-03 20:04:56.000000000 +0100
+@@ -161,5 +161,6 @@ const struct inode_operations ext4_file_
+ .check_acl = ext4_check_acl,
+ .fallocate = ext4_fallocate,
+ .fiemap = ext4_fiemap,
++ .sync_flags = ext4_sync_flags,
+ };
+
+diff -NurpP --minimal linux-2.6.32.1/fs/ext4/ialloc.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/ialloc.c
+--- linux-2.6.32.1/fs/ext4/ialloc.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/ialloc.c 2009-12-03 20:04:56.000000000 +0100
+@@ -22,6 +22,7 @@
+ #include <linux/random.h>
+ #include <linux/bitops.h>
+ #include <linux/blkdev.h>
++#include <linux/vs_tag.h>
+ #include <asm/byteorder.h>
+
+ #include "ext4.h"
+@@ -995,6 +996,7 @@ got:
+ } else
+ inode->i_gid = current_fsgid();
+ inode->i_mode = mode;
++ inode->i_tag = dx_current_fstag(sb);
+
+ inode->i_ino = ino + group * EXT4_INODES_PER_GROUP(sb);
+ /* This is the optimal IO size (for stat), not the fs block size */
+diff -NurpP --minimal linux-2.6.32.1/fs/ext4/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/inode.c
+--- linux-2.6.32.1/fs/ext4/inode.c 2009-12-14 21:29:46.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/inode.c 2009-12-14 22:20:55.000000000 +0100
+@@ -38,6 +38,7 @@
+ #include <linux/uio.h>
+ #include <linux/bio.h>
+ #include <linux/workqueue.h>
++#include <linux/vs_tag.h>
+
+ #include "ext4_jbd2.h"
+ #include "xattr.h"
+@@ -4384,7 +4385,7 @@ static void ext4_free_branches(handle_t
+
+ int ext4_can_truncate(struct inode *inode)
+ {
+- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
+ return 0;
+ if (S_ISREG(inode->i_mode))
+ return 1;
+@@ -4735,36 +4736,60 @@ void ext4_set_inode_flags(struct inode *
+ {
+ unsigned int flags = EXT4_I(inode)->i_flags;
+
+- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
++
++ if (flags & EXT4_IMMUTABLE_FL)
++ inode->i_flags |= S_IMMUTABLE;
++ if (flags & EXT4_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++
+ if (flags & EXT4_SYNC_FL)
+ inode->i_flags |= S_SYNC;
+ if (flags & EXT4_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+- if (flags & EXT4_IMMUTABLE_FL)
+- inode->i_flags |= S_IMMUTABLE;
+ if (flags & EXT4_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ if (flags & EXT4_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & EXT4_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & EXT4_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ /* Propagate flags from i_flags to EXT4_I(inode)->i_flags */
+ void ext4_get_inode_flags(struct ext4_inode_info *ei)
+ {
+ unsigned int flags = ei->vfs_inode.i_flags;
++ unsigned int vflags = ei->vfs_inode.i_vflags;
++
++ ei->i_flags &= ~(EXT4_SYNC_FL | EXT4_APPEND_FL |
++ EXT4_IMMUTABLE_FL | EXT4_IXUNLINK_FL |
++ EXT4_NOATIME_FL | EXT4_DIRSYNC_FL |
++ EXT4_BARRIER_FL | EXT4_COW_FL);
++
++ if (flags & S_IMMUTABLE)
++ ei->i_flags |= EXT4_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ ei->i_flags |= EXT4_IXUNLINK_FL;
+
+- ei->i_flags &= ~(EXT4_SYNC_FL|EXT4_APPEND_FL|
+- EXT4_IMMUTABLE_FL|EXT4_NOATIME_FL|EXT4_DIRSYNC_FL);
+ if (flags & S_SYNC)
+ ei->i_flags |= EXT4_SYNC_FL;
+ if (flags & S_APPEND)
+ ei->i_flags |= EXT4_APPEND_FL;
+- if (flags & S_IMMUTABLE)
+- ei->i_flags |= EXT4_IMMUTABLE_FL;
+ if (flags & S_NOATIME)
+ ei->i_flags |= EXT4_NOATIME_FL;
+ if (flags & S_DIRSYNC)
+ ei->i_flags |= EXT4_DIRSYNC_FL;
++
++ if (vflags & V_BARRIER)
++ ei->i_flags |= EXT4_BARRIER_FL;
++ if (vflags & V_COW)
++ ei->i_flags |= EXT4_COW_FL;
+ }
+
+ static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
+@@ -4799,6 +4824,8 @@ struct inode *ext4_iget(struct super_blo
+ journal_t *journal = EXT4_SB(sb)->s_journal;
+ long ret;
+ int block;
++ uid_t uid;
++ gid_t gid;
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+@@ -4814,12 +4841,16 @@ struct inode *ext4_iget(struct super_blo
+ goto bad_inode;
+ raw_inode = ext4_raw_inode(&iloc);
+ inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ if (!(test_opt(inode->i_sb, NO_UID32))) {
+- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+ }
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ le16_to_cpu(raw_inode->i_raw_tag));
+ inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+
+ ei->i_state = 0;
+@@ -5038,6 +5069,8 @@ static int ext4_do_update_inode(handle_t
+ struct ext4_inode *raw_inode = ext4_raw_inode(iloc);
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct buffer_head *bh = iloc->bh;
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
+ int err = 0, rc, block;
+
+ /* For fields not not tracking in the in-memory inode,
+@@ -5048,29 +5081,32 @@ static int ext4_do_update_inode(handle_t
+ ext4_get_inode_flags(ei);
+ raw_inode->i_mode = cpu_to_le16(inode->i_mode);
+ if (!(test_opt(inode->i_sb, NO_UID32))) {
+- raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
+- raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
++ raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));
++ raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid));
+ /*
+ * Fix up interoperability with old kernels. Otherwise, old inodes get
+ * re-used with the upper 16 bits of the uid/gid intact
+ */
+ if (!ei->i_dtime) {
+ raw_inode->i_uid_high =
+- cpu_to_le16(high_16_bits(inode->i_uid));
++ cpu_to_le16(high_16_bits(uid));
+ raw_inode->i_gid_high =
+- cpu_to_le16(high_16_bits(inode->i_gid));
++ cpu_to_le16(high_16_bits(gid));
+ } else {
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
+ } else {
+ raw_inode->i_uid_low =
+- cpu_to_le16(fs_high2lowuid(inode->i_uid));
++ cpu_to_le16(fs_high2lowuid(uid));
+ raw_inode->i_gid_low =
+- cpu_to_le16(fs_high2lowgid(inode->i_gid));
++ cpu_to_le16(fs_high2lowgid(gid));
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
++#ifdef CONFIG_TAGGING_INTERN
++ raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
++#endif
+ raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+
+ EXT4_INODE_SET_XTIME(i_ctime, inode, raw_inode);
+@@ -5255,7 +5291,8 @@ int ext4_setattr(struct dentry *dentry,
+ return error;
+
+ if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
+ handle_t *handle;
+
+ /* (user+group)*(old+new) structure, inode write (sb,
+@@ -5277,6 +5314,8 @@ int ext4_setattr(struct dentry *dentry,
+ inode->i_uid = attr->ia_uid;
+ if (attr->ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
++ if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ error = ext4_mark_inode_dirty(handle, inode);
+ ext4_journal_stop(handle);
+ }
+diff -NurpP --minimal linux-2.6.32.1/fs/ext4/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/ioctl.c
+--- linux-2.6.32.1/fs/ext4/ioctl.c 2009-12-14 21:29:46.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/ioctl.c 2009-12-14 22:20:55.000000000 +0100
+@@ -14,10 +14,39 @@
+ #include <linux/compat.h>
+ #include <linux/mount.h>
+ #include <linux/file.h>
++#include <linux/vs_tag.h>
+ #include <asm/uaccess.h>
+ #include "ext4_jbd2.h"
+ #include "ext4.h"
+
++
++int ext4_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ handle_t *handle = NULL;
++ struct ext4_iloc iloc;
++ int err;
++
++ handle = ext4_journal_start(inode, 1);
++ if (IS_ERR(handle))
++ return PTR_ERR(handle);
++
++ if (IS_SYNC(inode))
++ ext4_handle_sync(handle);
++ err = ext4_reserve_inode_write(handle, inode, &iloc);
++ if (err)
++ goto flags_err;
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ ext4_get_inode_flags(EXT4_I(inode));
++ inode->i_ctime = ext4_current_time(inode);
++
++ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
++flags_err:
++ ext4_journal_stop(handle);
++ return err;
++}
++
+ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_dentry->d_inode;
+@@ -50,6 +79,11 @@ long ext4_ioctl(struct file *filp, unsig
+
+ flags = ext4_mask_flags(inode->i_mode, flags);
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
++
+ err = -EPERM;
+ mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+@@ -67,7 +101,9 @@ long ext4_ioctl(struct file *filp, unsig
+ *
+ * This test looks nicer. Thanks to Pauline Middelink
+ */
+- if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
++ if ((oldflags & EXT4_IMMUTABLE_FL) ||
++ ((flags ^ oldflags) & (EXT4_APPEND_FL |
++ EXT4_IMMUTABLE_FL | EXT4_IXUNLINK_FL))) {
+ if (!capable(CAP_LINUX_IMMUTABLE))
+ goto flags_out;
+ }
+diff -NurpP --minimal linux-2.6.32.1/fs/ext4/namei.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/namei.c
+--- linux-2.6.32.1/fs/ext4/namei.c 2009-12-14 21:29:46.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/namei.c 2009-12-14 22:20:55.000000000 +0100
+@@ -34,6 +34,7 @@
+ #include <linux/quotaops.h>
+ #include <linux/buffer_head.h>
+ #include <linux/bio.h>
++#include <linux/vs_tag.h>
+ #include "ext4.h"
+ #include "ext4_jbd2.h"
+
+@@ -941,6 +942,7 @@ restart:
+ if (bh)
+ ll_rw_block(READ_META, 1, &bh);
+ }
++ dx_propagate_tag(nd, inode);
+ }
+ if ((bh = bh_use[ra_ptr++]) == NULL)
+ goto next;
+@@ -2533,6 +2535,7 @@ const struct inode_operations ext4_dir_i
+ #endif
+ .check_acl = ext4_check_acl,
+ .fiemap = ext4_fiemap,
++ .sync_flags = ext4_sync_flags,
+ };
+
+ const struct inode_operations ext4_special_inode_operations = {
+diff -NurpP --minimal linux-2.6.32.1/fs/ext4/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/super.c
+--- linux-2.6.32.1/fs/ext4/super.c 2009-12-14 21:29:46.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ext4/super.c 2009-12-14 22:22:03.000000000 +0100
+@@ -1091,6 +1091,7 @@ enum {
+ Opt_block_validity, Opt_noblock_validity,
+ Opt_inode_readahead_blks, Opt_journal_ioprio,
+ Opt_discard, Opt_nodiscard,
++ Opt_tag, Opt_notag, Opt_tagid
+ };
+
+ static const match_table_t tokens = {
+@@ -1158,6 +1159,9 @@ static const match_table_t tokens = {
+ {Opt_noauto_da_alloc, "noauto_da_alloc"},
+ {Opt_discard, "discard"},
+ {Opt_nodiscard, "nodiscard"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL},
+ };
+
+@@ -1255,6 +1259,20 @@ static int parse_options(char *options,
+ case Opt_nouid32:
+ set_opt(sbi->s_mount_opt, NO_UID32);
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++ case Opt_notag:
++ clear_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
+ case Opt_debug:
+ set_opt(sbi->s_mount_opt, DEBUG);
+ break;
+@@ -2455,6 +2473,9 @@ static int ext4_fill_super(struct super_
+ &journal_ioprio, NULL, 0))
+ goto failed_mount;
+
++ if (EXT4_SB(sb)->s_mount_opt & EXT4_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+
+@@ -3512,6 +3533,14 @@ static int ext4_remount(struct super_blo
+ if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED)
+ ext4_abort(sb, __func__, "Abort forced by user");
+
++ if ((sbi->s_mount_opt & EXT4_MOUNT_TAGGED) &&
++ !(sb->s_flags & MS_TAGGED)) {
++ printk("EXT4-fs: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ err = -EINVAL;
++ goto restore_opts;
++ }
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+
+diff -NurpP --minimal linux-2.6.32.1/fs/fcntl.c linux-2.6.32.1-vs2.3.0.36.27/fs/fcntl.c
+--- linux-2.6.32.1/fs/fcntl.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/fcntl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -19,6 +19,7 @@
+ #include <linux/signal.h>
+ #include <linux/rcupdate.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vs_limit.h>
+
+ #include <asm/poll.h>
+ #include <asm/siginfo.h>
+@@ -102,6 +103,8 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldf
+
+ if (tofree)
+ filp_close(tofree, files);
++ else
++ vx_openfd_inc(newfd); /* fd was unused */
+
+ return newfd;
+
+@@ -426,6 +429,8 @@ SYSCALL_DEFINE3(fcntl, unsigned int, fd,
+ filp = fget(fd);
+ if (!filp)
+ goto out;
++ if (!vx_files_avail(1))
++ goto out;
+
+ err = security_file_fcntl(filp, cmd, arg);
+ if (err) {
+diff -NurpP --minimal linux-2.6.32.1/fs/file.c linux-2.6.32.1-vs2.3.0.36.27/fs/file.c
+--- linux-2.6.32.1/fs/file.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/file.c 2009-12-03 20:04:56.000000000 +0100
+@@ -20,6 +20,7 @@
+ #include <linux/spinlock.h>
+ #include <linux/rcupdate.h>
+ #include <linux/workqueue.h>
++#include <linux/vs_limit.h>
+
+ struct fdtable_defer {
+ spinlock_t lock;
+@@ -368,6 +369,8 @@ struct files_struct *dup_fd(struct files
+ struct file *f = *old_fds++;
+ if (f) {
+ get_file(f);
++ /* TODO: sum it first for check and performance */
++ vx_openfd_inc(open_files - i);
+ } else {
+ /*
+ * The fd may be claimed in the fd bitmap but not yet
+@@ -476,6 +479,7 @@ repeat:
+ else
+ FD_CLR(fd, fdt->close_on_exec);
+ error = fd;
++ vx_openfd_inc(fd);
+ #if 1
+ /* Sanity check */
+ if (rcu_dereference(fdt->fd[fd]) != NULL) {
+diff -NurpP --minimal linux-2.6.32.1/fs/file_table.c linux-2.6.32.1-vs2.3.0.36.27/fs/file_table.c
+--- linux-2.6.32.1/fs/file_table.c 2009-12-03 20:02:51.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/file_table.c 2009-12-03 20:04:56.000000000 +0100
+@@ -22,6 +22,8 @@
+ #include <linux/fsnotify.h>
+ #include <linux/sysctl.h>
+ #include <linux/percpu_counter.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_context.h>
+
+ #include <asm/atomic.h>
+
+@@ -131,6 +133,8 @@ struct file *get_empty_filp(void)
+ spin_lock_init(&f->f_lock);
+ eventpoll_init_file(f);
+ /* f->f_version: 0 */
++ f->f_xid = vx_current_xid();
++ vx_files_inc(f);
+ return f;
+
+ over:
+@@ -285,6 +289,8 @@ void __fput(struct file *file)
+ cdev_put(inode->i_cdev);
+ fops_put(file->f_op);
+ put_pid(file->f_owner.pid);
++ vx_files_dec(file);
++ file->f_xid = 0;
+ file_kill(file);
+ if (file->f_mode & FMODE_WRITE)
+ drop_file_write_access(file);
+@@ -352,6 +358,8 @@ void put_filp(struct file *file)
+ {
+ if (atomic_long_dec_and_test(&file->f_count)) {
+ security_file_free(file);
++ vx_files_dec(file);
++ file->f_xid = 0;
+ file_kill(file);
+ file_free(file);
+ }
+diff -NurpP --minimal linux-2.6.32.1/fs/fs_struct.c linux-2.6.32.1-vs2.3.0.36.27/fs/fs_struct.c
+--- linux-2.6.32.1/fs/fs_struct.c 2009-06-11 17:13:04.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/fs_struct.c 2009-12-03 20:04:56.000000000 +0100
+@@ -4,6 +4,7 @@
+ #include <linux/path.h>
+ #include <linux/slab.h>
+ #include <linux/fs_struct.h>
++#include <linux/vserver/global.h>
+
+ /*
+ * Replace the fs->{rootmnt,root} with {mnt,dentry}. Put the old values.
+@@ -77,6 +78,7 @@ void free_fs_struct(struct fs_struct *fs
+ {
+ path_put(&fs->root);
+ path_put(&fs->pwd);
++ atomic_dec(&vs_global_fs);
+ kmem_cache_free(fs_cachep, fs);
+ }
+
+@@ -112,6 +114,7 @@ struct fs_struct *copy_fs_struct(struct
+ fs->pwd = old->pwd;
+ path_get(&old->pwd);
+ read_unlock(&old->lock);
++ atomic_inc(&vs_global_fs);
+ }
+ return fs;
+ }
+diff -NurpP --minimal linux-2.6.32.1/fs/gfs2/file.c linux-2.6.32.1-vs2.3.0.36.27/fs/gfs2/file.c
+--- linux-2.6.32.1/fs/gfs2/file.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/gfs2/file.c 2009-12-03 20:04:56.000000000 +0100
+@@ -132,6 +132,9 @@ static const u32 fsflags_to_gfs2[32] = {
+ [7] = GFS2_DIF_NOATIME,
+ [12] = GFS2_DIF_EXHASH,
+ [14] = GFS2_DIF_INHERIT_JDATA,
++ [27] = GFS2_DIF_IXUNLINK,
++ [26] = GFS2_DIF_BARRIER,
++ [29] = GFS2_DIF_COW,
+ };
+
+ static const u32 gfs2_to_fsflags[32] = {
+@@ -141,6 +144,9 @@ static const u32 gfs2_to_fsflags[32] = {
+ [gfs2fl_NoAtime] = FS_NOATIME_FL,
+ [gfs2fl_ExHash] = FS_INDEX_FL,
+ [gfs2fl_InheritJdata] = FS_JOURNAL_DATA_FL,
++ [gfs2fl_IXUnlink] = FS_IXUNLINK_FL,
++ [gfs2fl_Barrier] = FS_BARRIER_FL,
++ [gfs2fl_Cow] = FS_COW_FL,
+ };
+
+ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
+@@ -171,10 +177,16 @@ void gfs2_set_inode_flags(struct inode *
+ {
+ struct gfs2_inode *ip = GFS2_I(inode);
+ unsigned int flags = inode->i_flags;
++ unsigned int vflags = inode->i_vflags;
++
++ flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+- flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
+ if (ip->i_diskflags & GFS2_DIF_IMMUTABLE)
+ flags |= S_IMMUTABLE;
++ if (ip->i_diskflags & GFS2_DIF_IXUNLINK)
++ flags |= S_IXUNLINK;
++
+ if (ip->i_diskflags & GFS2_DIF_APPENDONLY)
+ flags |= S_APPEND;
+ if (ip->i_diskflags & GFS2_DIF_NOATIME)
+@@ -182,6 +194,43 @@ void gfs2_set_inode_flags(struct inode *
+ if (ip->i_diskflags & GFS2_DIF_SYNC)
+ flags |= S_SYNC;
+ inode->i_flags = flags;
++
++ vflags &= ~(V_BARRIER | V_COW);
++
++ if (ip->i_diskflags & GFS2_DIF_BARRIER)
++ vflags |= V_BARRIER;
++ if (ip->i_diskflags & GFS2_DIF_COW)
++ vflags |= V_COW;
++ inode->i_vflags = vflags;
++}
++
++void gfs2_get_inode_flags(struct inode *inode)
++{
++ struct gfs2_inode *ip = GFS2_I(inode);
++ unsigned int flags = inode->i_flags;
++ unsigned int vflags = inode->i_vflags;
++
++ ip->i_diskflags &= ~(GFS2_DIF_APPENDONLY |
++ GFS2_DIF_NOATIME | GFS2_DIF_SYNC |
++ GFS2_DIF_IMMUTABLE | GFS2_DIF_IXUNLINK |
++ GFS2_DIF_BARRIER | GFS2_DIF_COW);
++
++ if (flags & S_IMMUTABLE)
++ ip->i_diskflags |= GFS2_DIF_IMMUTABLE;
++ if (flags & S_IXUNLINK)
++ ip->i_diskflags |= GFS2_DIF_IXUNLINK;
++
++ if (flags & S_APPEND)
++ ip->i_diskflags |= GFS2_DIF_APPENDONLY;
++ if (flags & S_NOATIME)
++ ip->i_diskflags |= GFS2_DIF_NOATIME;
++ if (flags & S_SYNC)
++ ip->i_diskflags |= GFS2_DIF_SYNC;
++
++ if (vflags & V_BARRIER)
++ ip->i_diskflags |= GFS2_DIF_BARRIER;
++ if (vflags & V_COW)
++ ip->i_diskflags |= GFS2_DIF_COW;
+ }
+
+ /* Flags that can be set by user space */
+@@ -286,6 +335,37 @@ static int gfs2_set_flags(struct file *f
+ return do_gfs2_set_flags(filp, gfsflags, ~GFS2_DIF_JDATA);
+ }
+
++int gfs2_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ struct gfs2_inode *ip = GFS2_I(inode);
++ struct gfs2_sbd *sdp = GFS2_SB(inode);
++ struct buffer_head *bh;
++ struct gfs2_holder gh;
++ int error;
++
++ error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
++ if (error)
++ return error;
++ error = gfs2_trans_begin(sdp, RES_DINODE, 0);
++ if (error)
++ goto out;
++ error = gfs2_meta_inode_buffer(ip, &bh);
++ if (error)
++ goto out_trans_end;
++ gfs2_trans_add_bh(ip->i_gl, bh, 1);
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ gfs2_get_inode_flags(inode);
++ gfs2_dinode_out(ip, bh->b_data);
++ brelse(bh);
++ gfs2_set_aops(inode);
++out_trans_end:
++ gfs2_trans_end(sdp);
++out:
++ gfs2_glock_dq_uninit(&gh);
++ return error;
++}
++
+ static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ switch(cmd) {
+diff -NurpP --minimal linux-2.6.32.1/fs/gfs2/inode.h linux-2.6.32.1-vs2.3.0.36.27/fs/gfs2/inode.h
+--- linux-2.6.32.1/fs/gfs2/inode.h 2009-09-10 15:26:22.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/gfs2/inode.h 2009-12-03 20:04:56.000000000 +0100
+@@ -109,6 +109,7 @@ extern const struct file_operations gfs2
+ extern const struct file_operations gfs2_dir_fops_nolock;
+
+ extern void gfs2_set_inode_flags(struct inode *inode);
++extern int gfs2_sync_flags(struct inode *inode, int flags, int vflags);
+
+ #ifdef CONFIG_GFS2_FS_LOCKING_DLM
+ extern const struct file_operations gfs2_file_fops;
+diff -NurpP --minimal linux-2.6.32.1/fs/gfs2/ops_inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/gfs2/ops_inode.c
+--- linux-2.6.32.1/fs/gfs2/ops_inode.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/gfs2/ops_inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -1400,6 +1400,7 @@ const struct inode_operations gfs2_file_
+ .listxattr = gfs2_listxattr,
+ .removexattr = gfs2_removexattr,
+ .fiemap = gfs2_fiemap,
++ .sync_flags = gfs2_sync_flags,
+ };
+
+ const struct inode_operations gfs2_dir_iops = {
+@@ -1420,6 +1421,7 @@ const struct inode_operations gfs2_dir_i
+ .listxattr = gfs2_listxattr,
+ .removexattr = gfs2_removexattr,
+ .fiemap = gfs2_fiemap,
++ .sync_flags = gfs2_sync_flags,
+ };
+
+ const struct inode_operations gfs2_symlink_iops = {
+diff -NurpP --minimal linux-2.6.32.1/fs/hfsplus/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/hfsplus/ioctl.c
+--- linux-2.6.32.1/fs/hfsplus/ioctl.c 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/hfsplus/ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -17,6 +17,7 @@
+ #include <linux/mount.h>
+ #include <linux/sched.h>
+ #include <linux/xattr.h>
++#include <linux/mount.h>
+ #include <asm/uaccess.h>
+ #include "hfsplus_fs.h"
+
+diff -NurpP --minimal linux-2.6.32.1/fs/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/inode.c
+--- linux-2.6.32.1/fs/inode.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -133,6 +133,9 @@ int inode_init_always(struct super_block
+ struct address_space *const mapping = &inode->i_data;
+
+ inode->i_sb = sb;
++
++ /* essential because of inode slab reuse */
++ inode->i_tag = 0;
+ inode->i_blkbits = sb->s_blocksize_bits;
+ inode->i_flags = 0;
+ atomic_set(&inode->i_count, 1);
+@@ -153,6 +156,7 @@ int inode_init_always(struct super_block
+ inode->i_bdev = NULL;
+ inode->i_cdev = NULL;
+ inode->i_rdev = 0;
++ inode->i_mdev = 0;
+ inode->dirtied_when = 0;
+
+ if (security_inode_alloc(inode))
+@@ -307,6 +311,8 @@ void __iget(struct inode *inode)
+ inodes_stat.nr_unused--;
+ }
+
++EXPORT_SYMBOL_GPL(__iget);
++
+ /**
+ * clear_inode - clear an inode
+ * @inode: inode to clear
+@@ -1611,9 +1617,11 @@ void init_special_inode(struct inode *in
+ if (S_ISCHR(mode)) {
+ inode->i_fop = &def_chr_fops;
+ inode->i_rdev = rdev;
++ inode->i_mdev = rdev;
+ } else if (S_ISBLK(mode)) {
+ inode->i_fop = &def_blk_fops;
+ inode->i_rdev = rdev;
++ inode->i_mdev = rdev;
+ } else if (S_ISFIFO(mode))
+ inode->i_fop = &def_fifo_fops;
+ else if (S_ISSOCK(mode))
+diff -NurpP --minimal linux-2.6.32.1/fs/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/ioctl.c
+--- linux-2.6.32.1/fs/ioctl.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -16,6 +16,9 @@
+ #include <linux/writeback.h>
+ #include <linux/buffer_head.h>
+ #include <linux/falloc.h>
++#include <linux/proc_fs.h>
++#include <linux/vserver/inode.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/ioctls.h>
+
+diff -NurpP --minimal linux-2.6.32.1/fs/ioprio.c linux-2.6.32.1-vs2.3.0.36.27/fs/ioprio.c
+--- linux-2.6.32.1/fs/ioprio.c 2009-03-24 14:22:26.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ioprio.c 2009-12-03 20:04:56.000000000 +0100
+@@ -26,6 +26,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/security.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vs_base.h>
+
+ int set_task_ioprio(struct task_struct *task, int ioprio)
+ {
+@@ -123,6 +124,8 @@ SYSCALL_DEFINE3(ioprio_set, int, which,
+ else
+ pgrp = find_vpid(who);
+ do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
++ if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
++ continue;
+ ret = set_task_ioprio(p, ioprio);
+ if (ret)
+ break;
+@@ -212,6 +215,8 @@ SYSCALL_DEFINE2(ioprio_get, int, which,
+ else
+ pgrp = find_vpid(who);
+ do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
++ if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
++ continue;
+ tmpio = get_task_ioprio(p);
+ if (tmpio < 0)
+ continue;
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/acl.c linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/acl.c
+--- linux-2.6.32.1/fs/jfs/acl.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/acl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -216,7 +216,8 @@ int jfs_setattr(struct dentry *dentry, s
+ return rc;
+
+ if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
+- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
++ (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) ||
++ (iattr->ia_valid & ATTR_TAG && iattr->ia_tag != inode->i_tag)) {
+ if (vfs_dq_transfer(inode, iattr))
+ return -EDQUOT;
+ }
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/file.c linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/file.c
+--- linux-2.6.32.1/fs/jfs/file.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/file.c 2009-12-03 20:04:56.000000000 +0100
+@@ -98,6 +98,7 @@ const struct inode_operations jfs_file_i
+ .setattr = jfs_setattr,
+ .check_acl = jfs_check_acl,
+ #endif
++ .sync_flags = jfs_sync_flags,
+ };
+
+ const struct file_operations jfs_file_operations = {
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/ioctl.c
+--- linux-2.6.32.1/fs/jfs/ioctl.c 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -11,6 +11,7 @@
+ #include <linux/mount.h>
+ #include <linux/time.h>
+ #include <linux/sched.h>
++#include <linux/mount.h>
+ #include <asm/current.h>
+ #include <asm/uaccess.h>
+
+@@ -52,6 +53,16 @@ static long jfs_map_ext2(unsigned long f
+ }
+
+
++int jfs_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ jfs_get_inode_flags(JFS_IP(inode));
++ inode->i_ctime = CURRENT_TIME_SEC;
++ mark_inode_dirty(inode);
++ return 0;
++}
++
+ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_dentry->d_inode;
+@@ -85,6 +96,11 @@ long jfs_ioctl(struct file *filp, unsign
+ if (!S_ISDIR(inode->i_mode))
+ flags &= ~JFS_DIRSYNC_FL;
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
++
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode)) {
+ err = -EPERM;
+@@ -102,8 +118,8 @@ long jfs_ioctl(struct file *filp, unsign
+ * the relevant capability.
+ */
+ if ((oldflags & JFS_IMMUTABLE_FL) ||
+- ((flags ^ oldflags) &
+- (JFS_APPEND_FL | JFS_IMMUTABLE_FL))) {
++ ((flags ^ oldflags) & (JFS_APPEND_FL |
++ JFS_IMMUTABLE_FL | JFS_IXUNLINK_FL))) {
+ if (!capable(CAP_LINUX_IMMUTABLE)) {
+ mutex_unlock(&inode->i_mutex);
+ err = -EPERM;
+@@ -111,7 +127,7 @@ long jfs_ioctl(struct file *filp, unsign
+ }
+ }
+
+- flags = flags & JFS_FL_USER_MODIFIABLE;
++ flags &= JFS_FL_USER_MODIFIABLE;
+ flags |= oldflags & ~JFS_FL_USER_MODIFIABLE;
+ jfs_inode->mode2 = flags;
+
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/jfs_dinode.h linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_dinode.h
+--- linux-2.6.32.1/fs/jfs/jfs_dinode.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_dinode.h 2009-12-03 20:04:56.000000000 +0100
+@@ -161,9 +161,13 @@ struct dinode {
+
+ #define JFS_APPEND_FL 0x01000000 /* writes to file may only append */
+ #define JFS_IMMUTABLE_FL 0x02000000 /* Immutable file */
++#define JFS_IXUNLINK_FL 0x08000000 /* Immutable invert on unlink */
+
+-#define JFS_FL_USER_VISIBLE 0x03F80000
+-#define JFS_FL_USER_MODIFIABLE 0x03F80000
++#define JFS_BARRIER_FL 0x04000000 /* Barrier for chroot() */
++#define JFS_COW_FL 0x20000000 /* Copy on Write marker */
++
++#define JFS_FL_USER_VISIBLE 0x07F80000
++#define JFS_FL_USER_MODIFIABLE 0x07F80000
+ #define JFS_FL_INHERIT 0x03C80000
+
+ /* These are identical to EXT[23]_IOC_GETFLAGS/SETFLAGS */
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/jfs_filsys.h linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_filsys.h
+--- linux-2.6.32.1/fs/jfs/jfs_filsys.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_filsys.h 2009-12-03 20:04:56.000000000 +0100
+@@ -263,6 +263,7 @@
+ #define JFS_NAME_MAX 255
+ #define JFS_PATH_MAX BPSIZE
+
++#define JFS_TAGGED 0x00800000 /* Context Tagging */
+
+ /*
+ * file system state (superblock state)
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/jfs_imap.c linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_imap.c
+--- linux-2.6.32.1/fs/jfs/jfs_imap.c 2009-09-10 15:26:22.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_imap.c 2009-12-03 20:04:56.000000000 +0100
+@@ -45,6 +45,7 @@
+ #include <linux/buffer_head.h>
+ #include <linux/pagemap.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+
+ #include "jfs_incore.h"
+ #include "jfs_inode.h"
+@@ -3059,6 +3060,8 @@ static int copy_from_dinode(struct dinod
+ {
+ struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+ struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
++ uid_t uid;
++ gid_t gid;
+
+ jfs_ip->fileset = le32_to_cpu(dip->di_fileset);
+ jfs_ip->mode2 = le32_to_cpu(dip->di_mode);
+@@ -3079,14 +3082,18 @@ static int copy_from_dinode(struct dinod
+ }
+ ip->i_nlink = le32_to_cpu(dip->di_nlink);
+
+- jfs_ip->saved_uid = le32_to_cpu(dip->di_uid);
++ uid = le32_to_cpu(dip->di_uid);
++ gid = le32_to_cpu(dip->di_gid);
++ ip->i_tag = INOTAG_TAG(DX_TAG(ip), uid, gid, 0);
++
++ jfs_ip->saved_uid = INOTAG_UID(DX_TAG(ip), uid, gid);
+ if (sbi->uid == -1)
+ ip->i_uid = jfs_ip->saved_uid;
+ else {
+ ip->i_uid = sbi->uid;
+ }
+
+- jfs_ip->saved_gid = le32_to_cpu(dip->di_gid);
++ jfs_ip->saved_gid = INOTAG_GID(DX_TAG(ip), uid, gid);
+ if (sbi->gid == -1)
+ ip->i_gid = jfs_ip->saved_gid;
+ else {
+@@ -3151,14 +3158,12 @@ static void copy_to_dinode(struct dinode
+ dip->di_size = cpu_to_le64(ip->i_size);
+ dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks));
+ dip->di_nlink = cpu_to_le32(ip->i_nlink);
+- if (sbi->uid == -1)
+- dip->di_uid = cpu_to_le32(ip->i_uid);
+- else
+- dip->di_uid = cpu_to_le32(jfs_ip->saved_uid);
+- if (sbi->gid == -1)
+- dip->di_gid = cpu_to_le32(ip->i_gid);
+- else
+- dip->di_gid = cpu_to_le32(jfs_ip->saved_gid);
++
++ dip->di_uid = cpu_to_le32(TAGINO_UID(DX_TAG(ip),
++ (sbi->uid == -1) ? ip->i_uid : jfs_ip->saved_uid, ip->i_tag));
++ dip->di_gid = cpu_to_le32(TAGINO_GID(DX_TAG(ip),
++ (sbi->gid == -1) ? ip->i_gid : jfs_ip->saved_gid, ip->i_tag));
++
+ jfs_get_inode_flags(jfs_ip);
+ /*
+ * mode2 is only needed for storing the higher order bits.
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/jfs_inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_inode.c
+--- linux-2.6.32.1/fs/jfs/jfs_inode.c 2009-06-11 17:13:05.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -18,6 +18,7 @@
+
+ #include <linux/fs.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+ #include "jfs_incore.h"
+ #include "jfs_inode.h"
+ #include "jfs_filsys.h"
+@@ -30,29 +31,46 @@ void jfs_set_inode_flags(struct inode *i
+ {
+ unsigned int flags = JFS_IP(inode)->mode2;
+
+- inode->i_flags &= ~(S_IMMUTABLE | S_APPEND |
+- S_NOATIME | S_DIRSYNC | S_SYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+ if (flags & JFS_IMMUTABLE_FL)
+ inode->i_flags |= S_IMMUTABLE;
++ if (flags & JFS_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++
++ if (flags & JFS_SYNC_FL)
++ inode->i_flags |= S_SYNC;
+ if (flags & JFS_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+ if (flags & JFS_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ if (flags & JFS_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
+- if (flags & JFS_SYNC_FL)
+- inode->i_flags |= S_SYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & JFS_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & JFS_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ void jfs_get_inode_flags(struct jfs_inode_info *jfs_ip)
+ {
+ unsigned int flags = jfs_ip->vfs_inode.i_flags;
++ unsigned int vflags = jfs_ip->vfs_inode.i_vflags;
++
++ jfs_ip->mode2 &= ~(JFS_IMMUTABLE_FL | JFS_IXUNLINK_FL |
++ JFS_APPEND_FL | JFS_NOATIME_FL |
++ JFS_DIRSYNC_FL | JFS_SYNC_FL |
++ JFS_BARRIER_FL | JFS_COW_FL);
+
+- jfs_ip->mode2 &= ~(JFS_IMMUTABLE_FL | JFS_APPEND_FL | JFS_NOATIME_FL |
+- JFS_DIRSYNC_FL | JFS_SYNC_FL);
+ if (flags & S_IMMUTABLE)
+ jfs_ip->mode2 |= JFS_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ jfs_ip->mode2 |= JFS_IXUNLINK_FL;
++
+ if (flags & S_APPEND)
+ jfs_ip->mode2 |= JFS_APPEND_FL;
+ if (flags & S_NOATIME)
+@@ -61,6 +79,11 @@ void jfs_get_inode_flags(struct jfs_inod
+ jfs_ip->mode2 |= JFS_DIRSYNC_FL;
+ if (flags & S_SYNC)
+ jfs_ip->mode2 |= JFS_SYNC_FL;
++
++ if (vflags & V_BARRIER)
++ jfs_ip->mode2 |= JFS_BARRIER_FL;
++ if (vflags & V_COW)
++ jfs_ip->mode2 |= JFS_COW_FL;
+ }
+
+ /*
+@@ -105,6 +128,7 @@ struct inode *ialloc(struct inode *paren
+ mode |= S_ISGID;
+ } else
+ inode->i_gid = current_fsgid();
++ inode->i_tag = dx_current_fstag(sb);
+
+ /*
+ * New inodes need to save sane values on disk when
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/jfs_inode.h linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_inode.h
+--- linux-2.6.32.1/fs/jfs/jfs_inode.h 2009-06-11 17:13:05.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/jfs_inode.h 2009-12-03 20:04:56.000000000 +0100
+@@ -39,6 +39,7 @@ extern struct dentry *jfs_fh_to_dentry(s
+ extern struct dentry *jfs_fh_to_parent(struct super_block *sb, struct fid *fid,
+ int fh_len, int fh_type);
+ extern void jfs_set_inode_flags(struct inode *);
++extern int jfs_sync_flags(struct inode *, int, int);
+ extern int jfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
+
+ extern const struct address_space_operations jfs_aops;
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/namei.c linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/namei.c
+--- linux-2.6.32.1/fs/jfs/namei.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/namei.c 2009-12-03 20:04:56.000000000 +0100
+@@ -21,6 +21,7 @@
+ #include <linux/ctype.h>
+ #include <linux/quotaops.h>
+ #include <linux/exportfs.h>
++#include <linux/vs_tag.h>
+ #include "jfs_incore.h"
+ #include "jfs_superblock.h"
+ #include "jfs_inode.h"
+@@ -1476,6 +1477,7 @@ static struct dentry *jfs_lookup(struct
+ return ERR_CAST(ip);
+ }
+
++ dx_propagate_tag(nd, ip);
+ dentry = d_splice_alias(ip, dentry);
+
+ if (dentry && (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2))
+@@ -1545,6 +1547,7 @@ const struct inode_operations jfs_dir_in
+ .setattr = jfs_setattr,
+ .check_acl = jfs_check_acl,
+ #endif
++ .sync_flags = jfs_sync_flags,
+ };
+
+ const struct file_operations jfs_dir_operations = {
+diff -NurpP --minimal linux-2.6.32.1/fs/jfs/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/super.c
+--- linux-2.6.32.1/fs/jfs/super.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/jfs/super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -192,7 +192,8 @@ static void jfs_put_super(struct super_b
+ enum {
+ Opt_integrity, Opt_nointegrity, Opt_iocharset, Opt_resize,
+ Opt_resize_nosize, Opt_errors, Opt_ignore, Opt_err, Opt_quota,
+- Opt_usrquota, Opt_grpquota, Opt_uid, Opt_gid, Opt_umask
++ Opt_usrquota, Opt_grpquota, Opt_uid, Opt_gid, Opt_umask,
++ Opt_tag, Opt_notag, Opt_tagid
+ };
+
+ static const match_table_t tokens = {
+@@ -202,6 +203,10 @@ static const match_table_t tokens = {
+ {Opt_resize, "resize=%u"},
+ {Opt_resize_nosize, "resize"},
+ {Opt_errors, "errors=%s"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
++ {Opt_tag, "tagxid"},
+ {Opt_ignore, "noquota"},
+ {Opt_ignore, "quota"},
+ {Opt_usrquota, "usrquota"},
+@@ -336,6 +341,20 @@ static int parse_options(char *options,
+ }
+ break;
+ }
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ *flag |= JFS_TAGGED;
++ break;
++ case Opt_notag:
++ *flag &= JFS_TAGGED;
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ *flag |= JFS_TAGGED;
++ break;
++#endif
+ default:
+ printk("jfs: Unrecognized mount option \"%s\" "
+ " or missing value\n", p);
+@@ -366,6 +385,12 @@ static int jfs_remount(struct super_bloc
+ if (!parse_options(data, sb, &newLVSize, &flag)) {
+ return -EINVAL;
+ }
++ if ((flag & JFS_TAGGED) && !(sb->s_flags & MS_TAGGED)) {
++ printk(KERN_ERR "JFS: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ return -EINVAL;
++ }
++
+ lock_kernel();
+ if (newLVSize) {
+ if (sb->s_flags & MS_RDONLY) {
+@@ -449,6 +474,9 @@ static int jfs_fill_super(struct super_b
+ #ifdef CONFIG_JFS_POSIX_ACL
+ sb->s_flags |= MS_POSIXACL;
+ #endif
++ /* map mount option tagxid */
++ if (sbi->flag & JFS_TAGGED)
++ sb->s_flags |= MS_TAGGED;
+
+ if (newLVSize) {
+ printk(KERN_ERR "resize option for remount only\n");
+diff -NurpP --minimal linux-2.6.32.1/fs/libfs.c linux-2.6.32.1-vs2.3.0.36.27/fs/libfs.c
+--- linux-2.6.32.1/fs/libfs.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/libfs.c 2009-12-03 20:04:56.000000000 +0100
+@@ -127,7 +127,8 @@ static inline unsigned char dt_type(stru
+ * both impossible due to the lock on directory.
+ */
+
+-int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
++static inline int do_dcache_readdir_filter(struct file *filp,
++ void *dirent, filldir_t filldir, int (*filter)(struct dentry *dentry))
+ {
+ struct dentry *dentry = filp->f_path.dentry;
+ struct dentry *cursor = filp->private_data;
+@@ -160,6 +161,8 @@ int dcache_readdir(struct file * filp, v
+ next = list_entry(p, struct dentry, d_u.d_child);
+ if (d_unhashed(next) || !next->d_inode)
+ continue;
++ if (filter && !filter(next))
++ continue;
+
+ spin_unlock(&dcache_lock);
+ if (filldir(dirent, next->d_name.name,
+@@ -178,6 +181,18 @@ int dcache_readdir(struct file * filp, v
+ return 0;
+ }
+
++int dcache_readdir(struct file *filp, void *dirent, filldir_t filldir)
++{
++ return do_dcache_readdir_filter(filp, dirent, filldir, NULL);
++}
++
++int dcache_readdir_filter(struct file *filp, void *dirent, filldir_t filldir,
++ int (*filter)(struct dentry *))
++{
++ return do_dcache_readdir_filter(filp, dirent, filldir, filter);
++}
++
++
+ ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t *ppos)
+ {
+ return -EISDIR;
+@@ -841,6 +856,7 @@ EXPORT_SYMBOL(dcache_dir_close);
+ EXPORT_SYMBOL(dcache_dir_lseek);
+ EXPORT_SYMBOL(dcache_dir_open);
+ EXPORT_SYMBOL(dcache_readdir);
++EXPORT_SYMBOL(dcache_readdir_filter);
+ EXPORT_SYMBOL(generic_read_dir);
+ EXPORT_SYMBOL(get_sb_pseudo);
+ EXPORT_SYMBOL(simple_write_begin);
+diff -NurpP --minimal linux-2.6.32.1/fs/locks.c linux-2.6.32.1-vs2.3.0.36.27/fs/locks.c
+--- linux-2.6.32.1/fs/locks.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/locks.c 2009-12-03 20:04:56.000000000 +0100
+@@ -127,6 +127,8 @@
+ #include <linux/time.h>
+ #include <linux/rcupdate.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vs_base.h>
++#include <linux/vs_limit.h>
+
+ #include <asm/uaccess.h>
+
+@@ -148,6 +150,8 @@ static struct kmem_cache *filelock_cache
+ /* Allocate an empty lock structure. */
+ static struct file_lock *locks_alloc_lock(void)
+ {
++ if (!vx_locks_avail(1))
++ return NULL;
+ return kmem_cache_alloc(filelock_cache, GFP_KERNEL);
+ }
+
+@@ -174,6 +178,7 @@ static void locks_free_lock(struct file_
+ BUG_ON(!list_empty(&fl->fl_block));
+ BUG_ON(!list_empty(&fl->fl_link));
+
++ vx_locks_dec(fl);
+ locks_release_private(fl);
+ kmem_cache_free(filelock_cache, fl);
+ }
+@@ -194,6 +199,7 @@ void locks_init_lock(struct file_lock *f
+ fl->fl_start = fl->fl_end = 0;
+ fl->fl_ops = NULL;
+ fl->fl_lmops = NULL;
++ fl->fl_xid = -1;
+ }
+
+ EXPORT_SYMBOL(locks_init_lock);
+@@ -248,6 +254,7 @@ void locks_copy_lock(struct file_lock *n
+ new->fl_file = fl->fl_file;
+ new->fl_ops = fl->fl_ops;
+ new->fl_lmops = fl->fl_lmops;
++ new->fl_xid = fl->fl_xid;
+
+ locks_copy_private(new, fl);
+ }
+@@ -286,6 +293,11 @@ static int flock_make_lock(struct file *
+ fl->fl_flags = FL_FLOCK;
+ fl->fl_type = type;
+ fl->fl_end = OFFSET_MAX;
++
++ vxd_assert(filp->f_xid == vx_current_xid(),
++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++ fl->fl_xid = filp->f_xid;
++ vx_locks_inc(fl);
+
+ *lock = fl;
+ return 0;
+@@ -451,6 +463,7 @@ static int lease_init(struct file *filp,
+
+ fl->fl_owner = current->files;
+ fl->fl_pid = current->tgid;
++ fl->fl_xid = vx_current_xid();
+
+ fl->fl_file = filp;
+ fl->fl_flags = FL_LEASE;
+@@ -470,6 +483,11 @@ static struct file_lock *lease_alloc(str
+ if (fl == NULL)
+ return ERR_PTR(error);
+
++ fl->fl_xid = vx_current_xid();
++ if (filp)
++ vxd_assert(filp->f_xid == fl->fl_xid,
++ "f_xid(%d) == fl_xid(%d)", filp->f_xid, fl->fl_xid);
++ vx_locks_inc(fl);
+ error = lease_init(filp, type, fl);
+ if (error) {
+ locks_free_lock(fl);
+@@ -770,6 +788,7 @@ static int flock_lock_file(struct file *
+ if (found)
+ cond_resched();
+
++ new_fl->fl_xid = -1;
+ find_conflict:
+ for_each_lock(inode, before) {
+ struct file_lock *fl = *before;
+@@ -790,6 +809,7 @@ find_conflict:
+ goto out;
+ locks_copy_lock(new_fl, request);
+ locks_insert_lock(before, new_fl);
++ vx_locks_inc(new_fl);
+ new_fl = NULL;
+ error = 0;
+
+@@ -800,7 +820,8 @@ out:
+ return error;
+ }
+
+-static int __posix_lock_file(struct inode *inode, struct file_lock *request, struct file_lock *conflock)
++static int __posix_lock_file(struct inode *inode, struct file_lock *request,
++ struct file_lock *conflock, xid_t xid)
+ {
+ struct file_lock *fl;
+ struct file_lock *new_fl = NULL;
+@@ -810,6 +831,8 @@ static int __posix_lock_file(struct inod
+ struct file_lock **before;
+ int error, added = 0;
+
++ vxd_assert(xid == vx_current_xid(),
++ "xid(%d) == current(%d)", xid, vx_current_xid());
+ /*
+ * We may need two file_lock structures for this operation,
+ * so we get them in advance to avoid races.
+@@ -820,7 +843,11 @@ static int __posix_lock_file(struct inod
+ (request->fl_type != F_UNLCK ||
+ request->fl_start != 0 || request->fl_end != OFFSET_MAX)) {
+ new_fl = locks_alloc_lock();
++ new_fl->fl_xid = xid;
++ vx_locks_inc(new_fl);
+ new_fl2 = locks_alloc_lock();
++ new_fl2->fl_xid = xid;
++ vx_locks_inc(new_fl2);
+ }
+
+ lock_kernel();
+@@ -1019,7 +1046,8 @@ static int __posix_lock_file(struct inod
+ int posix_lock_file(struct file *filp, struct file_lock *fl,
+ struct file_lock *conflock)
+ {
+- return __posix_lock_file(filp->f_path.dentry->d_inode, fl, conflock);
++ return __posix_lock_file(filp->f_path.dentry->d_inode,
++ fl, conflock, filp->f_xid);
+ }
+ EXPORT_SYMBOL(posix_lock_file);
+
+@@ -1109,7 +1137,7 @@ int locks_mandatory_area(int read_write,
+ fl.fl_end = offset + count - 1;
+
+ for (;;) {
+- error = __posix_lock_file(inode, &fl, NULL);
++ error = __posix_lock_file(inode, &fl, NULL, filp->f_xid);
+ if (error != FILE_LOCK_DEFERRED)
+ break;
+ error = wait_event_interruptible(fl.fl_wait, !fl.fl_next);
+@@ -1424,6 +1452,7 @@ int generic_setlease(struct file *filp,
+
+ locks_copy_lock(new_fl, lease);
+ locks_insert_lock(before, new_fl);
++ vx_locks_inc(new_fl);
+
+ *flp = new_fl;
+ return 0;
+@@ -1779,6 +1808,11 @@ int fcntl_setlk(unsigned int fd, struct
+ if (file_lock == NULL)
+ return -ENOLCK;
+
++ vxd_assert(filp->f_xid == vx_current_xid(),
++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++ file_lock->fl_xid = filp->f_xid;
++ vx_locks_inc(file_lock);
++
+ /*
+ * This might block, so we do it before checking the inode.
+ */
+@@ -1897,6 +1931,11 @@ int fcntl_setlk64(unsigned int fd, struc
+ if (file_lock == NULL)
+ return -ENOLCK;
+
++ vxd_assert(filp->f_xid == vx_current_xid(),
++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++ file_lock->fl_xid = filp->f_xid;
++ vx_locks_inc(file_lock);
++
+ /*
+ * This might block, so we do it before checking the inode.
+ */
+@@ -2162,8 +2201,11 @@ static int locks_show(struct seq_file *f
+
+ lock_get_status(f, fl, (long)f->private, "");
+
+- list_for_each_entry(bfl, &fl->fl_block, fl_block)
++ list_for_each_entry(bfl, &fl->fl_block, fl_block) {
++ if (!vx_check(fl->fl_xid, VS_WATCH_P | VS_IDENT))
++ continue;
+ lock_get_status(f, bfl, (long)f->private, " ->");
++ }
+
+ f->private++;
+ return 0;
+diff -NurpP --minimal linux-2.6.32.1/fs/namei.c linux-2.6.32.1-vs2.3.0.36.27/fs/namei.c
+--- linux-2.6.32.1/fs/namei.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/namei.c 2009-12-03 20:04:56.000000000 +0100
+@@ -33,6 +33,14 @@
+ #include <linux/fcntl.h>
+ #include <linux/device_cgroup.h>
+ #include <linux/fs_struct.h>
++#include <linux/proc_fs.h>
++#include <linux/vserver/inode.h>
++#include <linux/vs_base.h>
++#include <linux/vs_tag.h>
++#include <linux/vs_cowbl.h>
++#include <linux/vs_device.h>
++#include <linux/vs_context.h>
++#include <linux/pid_namespace.h>
+ #include <asm/uaccess.h>
+
+ #define ACC_MODE(x) ("\000\004\002\006"[(x)&O_ACCMODE])
+@@ -169,6 +177,77 @@ void putname(const char *name)
+ EXPORT_SYMBOL(putname);
+ #endif
+
++static inline int dx_barrier(const struct inode *inode)
++{
++ if (IS_BARRIER(inode) && !vx_check(0, VS_ADMIN | VS_WATCH)) {
++ vxwprintk_task(1, "did hit the barrier.");
++ return 1;
++ }
++ return 0;
++}
++
++static int __dx_permission(const struct inode *inode, int mask)
++{
++ if (dx_barrier(inode))
++ return -EACCES;
++
++ if (inode->i_sb->s_magic == DEVPTS_SUPER_MAGIC) {
++ /* devpts is xid tagged */
++ if (S_ISDIR(inode->i_mode) ||
++ vx_check((xid_t)inode->i_tag, VS_IDENT | VS_WATCH_P))
++ return 0;
++ }
++ else if (inode->i_sb->s_magic == PROC_SUPER_MAGIC) {
++ struct proc_dir_entry *de = PDE(inode);
++
++ if (de && !vx_hide_check(0, de->vx_flags))
++ goto out;
++
++ if ((mask & (MAY_WRITE | MAY_APPEND))) {
++ struct pid *pid;
++ struct task_struct *tsk;
++
++ if (vx_check(0, VS_ADMIN | VS_WATCH_P) ||
++ vx_flags(VXF_STATE_SETUP, 0))
++ return 0;
++
++ pid = PROC_I(inode)->pid;
++ if (!pid)
++ goto out;
++
++ tsk = pid_task(pid, PIDTYPE_PID);
++ vxdprintk(VXD_CBIT(tag, 0), "accessing %p[#%u]",
++ tsk, (tsk ? vx_task_xid(tsk) : 0));
++ if (tsk && vx_check(vx_task_xid(tsk), VS_IDENT | VS_WATCH_P))
++ return 0;
++ }
++ else {
++ /* FIXME: Should we block some entries here? */
++ return 0;
++ }
++ }
++ else {
++ if (dx_notagcheck(inode->i_sb) ||
++ dx_check(inode->i_tag, DX_HOSTID | DX_ADMIN | DX_WATCH |
++ DX_IDENT))
++ return 0;
++ }
++
++out:
++ return -EACCES;
++}
++
++int dx_permission(const struct inode *inode, int mask)
++{
++ int ret = __dx_permission(inode, mask);
++ if (unlikely(ret)) {
++ vxwprintk_task(1, "denied %x access to %s:%p[#%d,%lu]",
++ mask, inode->i_sb->s_id, inode, inode->i_tag,
++ inode->i_ino);
++ }
++ return ret;
++}
++
+ /*
+ * This does basic POSIX ACL permission checking
+ */
+@@ -268,10 +347,14 @@ int inode_permission(struct inode *inode
+ /*
+ * Nobody gets write access to an immutable file.
+ */
+- if (IS_IMMUTABLE(inode))
++ if (IS_IMMUTABLE(inode) && !IS_COW(inode))
+ return -EACCES;
+ }
+
++ retval = dx_permission(inode, mask);
++ if (retval)
++ return retval;
++
+ if (inode->i_op->permission)
+ retval = inode->i_op->permission(inode, mask);
+ else
+@@ -447,6 +530,9 @@ static int exec_permission_lite(struct i
+ {
+ int ret;
+
++ if (dx_barrier(inode))
++ return -EACCES;
++
+ if (inode->i_op->permission) {
+ ret = inode->i_op->permission(inode, MAY_EXEC);
+ if (!ret)
+@@ -762,7 +848,8 @@ static __always_inline void follow_dotdo
+
+ if (nd->path.dentry == nd->root.dentry &&
+ nd->path.mnt == nd->root.mnt) {
+- break;
++ /* for sane '/' avoid follow_mount() */
++ return;
+ }
+ spin_lock(&dcache_lock);
+ if (nd->path.dentry != nd->path.mnt->mnt_root) {
+@@ -798,16 +885,30 @@ static int do_lookup(struct nameidata *n
+ {
+ struct vfsmount *mnt = nd->path.mnt;
+ struct dentry *dentry = __d_lookup(nd->path.dentry, name);
++ struct inode *inode;
+
+ if (!dentry)
+ goto need_lookup;
+ if (dentry->d_op && dentry->d_op->d_revalidate)
+ goto need_revalidate;
++ inode = dentry->d_inode;
++ if (!inode)
++ goto done;
++
++ if (__dx_permission(inode, MAY_ACCESS))
++ goto hidden;
++
+ done:
+ path->mnt = mnt;
+ path->dentry = dentry;
+ __follow_mount(path);
+ return 0;
++hidden:
++ vxwprintk_task(1, "did lookup hidden %s:%p[#%d,%lu] »%s/%.*s«.",
++ inode->i_sb->s_id, inode, inode->i_tag, inode->i_ino,
++ vxd_path(&nd->path), name->len, name->name);
++ dput(dentry);
++ return -ENOENT;
+
+ need_lookup:
+ dentry = real_lookup(nd->path.dentry, name, nd);
+@@ -1389,7 +1490,7 @@ static int may_delete(struct inode *dir,
+ if (IS_APPEND(dir))
+ return -EPERM;
+ if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
+- IS_IMMUTABLE(victim->d_inode) || IS_SWAPFILE(victim->d_inode))
++ IS_IXORUNLINK(victim->d_inode) || IS_SWAPFILE(victim->d_inode))
+ return -EPERM;
+ if (isdir) {
+ if (!S_ISDIR(victim->d_inode->i_mode))
+@@ -1529,6 +1630,14 @@ int may_open(struct path *path, int acc_
+ break;
+ }
+
++#ifdef CONFIG_VSERVER_COWBL
++ if (IS_COW(inode) && (flag & FMODE_WRITE)) {
++ if (IS_COW_LINK(inode))
++ return -EMLINK;
++ inode->i_flags &= ~(S_IXUNLINK|S_IMMUTABLE);
++ mark_inode_dirty(inode);
++ }
++#endif
+ error = inode_permission(inode, acc_mode);
+ if (error)
+ return error;
+@@ -1677,7 +1786,11 @@ struct file *do_filp_open(int dfd, const
+ int count = 0;
+ int will_write;
+ int flag = open_to_namei_flags(open_flag);
+-
++#ifdef CONFIG_VSERVER_COWBL
++ int rflag = flag;
++ int rmode = mode;
++restart:
++#endif
+ if (!acc_mode)
+ acc_mode = MAY_OPEN | ACC_MODE(flag);
+
+@@ -1825,6 +1938,25 @@ ok:
+ goto exit;
+ }
+ error = may_open(&nd.path, acc_mode, flag);
++#ifdef CONFIG_VSERVER_COWBL
++ if (error == -EMLINK) {
++ struct dentry *dentry;
++ dentry = cow_break_link(pathname);
++ if (IS_ERR(dentry)) {
++ error = PTR_ERR(dentry);
++ goto exit_cow;
++ }
++ dput(dentry);
++ if (will_write)
++ mnt_drop_write(nd.path.mnt);
++ release_open_intent(&nd);
++ path_put(&nd.path);
++ flag = rflag;
++ mode = rmode;
++ goto restart;
++ }
++exit_cow:
++#endif
+ if (error) {
+ if (will_write)
+ mnt_drop_write(nd.path.mnt);
+@@ -1987,9 +2119,17 @@ int vfs_mknod(struct inode *dir, struct
+ if (error)
+ return error;
+
+- if ((S_ISCHR(mode) || S_ISBLK(mode)) && !capable(CAP_MKNOD))
++ if (!(S_ISCHR(mode) || S_ISBLK(mode)))
++ goto okay;
++
++ if (!capable(CAP_MKNOD))
+ return -EPERM;
+
++ if (S_ISCHR(mode) && !vs_chrdev_perm(dev, DATTR_CREATE))
++ return -EPERM;
++ if (S_ISBLK(mode) && !vs_blkdev_perm(dev, DATTR_CREATE))
++ return -EPERM;
++okay:
+ if (!dir->i_op->mknod)
+ return -EPERM;
+
+@@ -2456,7 +2596,7 @@ int vfs_link(struct dentry *old_dentry,
+ /*
+ * A link to an append-only or immutable file cannot be created.
+ */
+- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
+ return -EPERM;
+ if (!dir->i_op->link)
+ return -EPERM;
+@@ -2829,6 +2969,219 @@ int vfs_follow_link(struct nameidata *nd
+ return __vfs_follow_link(nd, link);
+ }
+
++
++#ifdef CONFIG_VSERVER_COWBL
++
++#include <linux/file.h>
++
++static inline
++long do_cow_splice(struct file *in, struct file *out, size_t len)
++{
++ loff_t ppos = 0;
++
++ return do_splice_direct(in, &ppos, out, len, 0);
++}
++
++struct dentry *cow_break_link(const char *pathname)
++{
++ int ret, mode, pathlen, redo = 0;
++ struct nameidata old_nd, dir_nd;
++ struct path old_path, new_path;
++ struct dentry *dir, *res = NULL;
++ struct file *old_file;
++ struct file *new_file;
++ char *to, *path, pad='\251';
++ loff_t size;
++
++ vxdprintk(VXD_CBIT(misc, 1), "cow_break_link(»%s«)", pathname);
++ path = kmalloc(PATH_MAX, GFP_KERNEL);
++ ret = -ENOMEM;
++ if (!path)
++ goto out;
++
++ /* old_nd will have refs to dentry and mnt */
++ ret = path_lookup(pathname, LOOKUP_FOLLOW, &old_nd);
++ vxdprintk(VXD_CBIT(misc, 2), "path_lookup(old): %d", ret);
++ if (ret < 0)
++ goto out_free_path;
++
++ old_path = old_nd.path;
++ mode = old_path.dentry->d_inode->i_mode;
++
++ to = d_path(&old_path, path, PATH_MAX-2);
++ pathlen = strlen(to);
++ vxdprintk(VXD_CBIT(misc, 2), "old path »%s« [»%.*s«:%d]", to,
++ old_path.dentry->d_name.len, old_path.dentry->d_name.name,
++ old_path.dentry->d_name.len);
++
++ to[pathlen + 1] = 0;
++retry:
++ to[pathlen] = pad--;
++ ret = -EMLINK;
++ if (pad <= '\240')
++ goto out_rel_old;
++
++ vxdprintk(VXD_CBIT(misc, 1), "temp copy »%s«", to);
++ /* dir_nd will have refs to dentry and mnt */
++ ret = path_lookup(to,
++ LOOKUP_PARENT | LOOKUP_OPEN | LOOKUP_CREATE, &dir_nd);
++ vxdprintk(VXD_CBIT(misc, 2),
++ "path_lookup(new): %d", ret);
++ if (ret < 0)
++ goto retry;
++
++ /* this puppy downs the inode mutex */
++ new_path.dentry = lookup_create(&dir_nd, 0);
++ if (!new_path.dentry || IS_ERR(new_path.dentry)) {
++ vxdprintk(VXD_CBIT(misc, 2),
++ "lookup_create(new): %p", new_path.dentry);
++ mutex_unlock(&dir_nd.path.dentry->d_inode->i_mutex);
++ path_put(&dir_nd.path);
++ goto retry;
++ }
++ vxdprintk(VXD_CBIT(misc, 2),
++ "lookup_create(new): %p [»%.*s«:%d]", new_path.dentry,
++ new_path.dentry->d_name.len, new_path.dentry->d_name.name,
++ new_path.dentry->d_name.len);
++ dir = dir_nd.path.dentry;
++
++ ret = vfs_create(dir_nd.path.dentry->d_inode, new_path.dentry, mode, &dir_nd);
++ vxdprintk(VXD_CBIT(misc, 2),
++ "vfs_create(new): %d", ret);
++ if (ret == -EEXIST) {
++ mutex_unlock(&dir->d_inode->i_mutex);
++ dput(new_path.dentry);
++ path_put(&dir_nd.path);
++ goto retry;
++ }
++ else if (ret < 0)
++ goto out_unlock_new;
++
++ /* drop out early, ret passes ENOENT */
++ ret = -ENOENT;
++ if ((redo = d_unhashed(old_path.dentry)))
++ goto out_unlock_new;
++
++ new_path.mnt = dir_nd.path.mnt;
++ dget(old_path.dentry);
++ mntget(old_path.mnt);
++ /* this one cleans up the dentry/mnt in case of failure */
++ old_file = dentry_open(old_path.dentry, old_path.mnt,
++ O_RDONLY, current_cred());
++ vxdprintk(VXD_CBIT(misc, 2),
++ "dentry_open(old): %p", old_file);
++ if (!old_file || IS_ERR(old_file)) {
++ res = IS_ERR(old_file) ? (void *) old_file : res;
++ goto out_unlock_new;
++ }
++
++ dget(new_path.dentry);
++ mntget(new_path.mnt);
++ /* this one cleans up the dentry/mnt in case of failure */
++ new_file = dentry_open(new_path.dentry, new_path.mnt,
++ O_WRONLY, current_cred());
++ vxdprintk(VXD_CBIT(misc, 2),
++ "dentry_open(new): %p", new_file);
++
++ ret = IS_ERR(new_file) ? PTR_ERR(new_file) : -ENOENT;
++ if (!new_file || IS_ERR(new_file))
++ goto out_fput_old;
++
++ size = i_size_read(old_file->f_dentry->d_inode);
++ ret = do_cow_splice(old_file, new_file, size);
++ vxdprintk(VXD_CBIT(misc, 2), "do_splice_direct: %d", ret);
++ if (ret < 0) {
++ goto out_fput_both;
++ } else if (ret < size) {
++ ret = -ENOSPC;
++ goto out_fput_both;
++ } else {
++ struct inode *old_inode = old_path.dentry->d_inode;
++ struct inode *new_inode = new_path.dentry->d_inode;
++ struct iattr attr = {
++ .ia_uid = old_inode->i_uid,
++ .ia_gid = old_inode->i_gid,
++ .ia_valid = ATTR_UID | ATTR_GID
++ };
++
++ ret = inode_setattr(new_inode, &attr);
++ if (ret)
++ goto out_fput_both;
++ }
++
++ mutex_lock(&old_path.dentry->d_inode->i_sb->s_vfs_rename_mutex);
++
++ /* drop out late */
++ ret = -ENOENT;
++ if ((redo = d_unhashed(old_path.dentry)))
++ goto out_unlock;
++
++ vxdprintk(VXD_CBIT(misc, 2),
++ "vfs_rename: [»%*s«:%d] -> [»%*s«:%d]",
++ new_path.dentry->d_name.len, new_path.dentry->d_name.name,
++ new_path.dentry->d_name.len,
++ old_path.dentry->d_name.len, old_path.dentry->d_name.name,
++ old_path.dentry->d_name.len);
++ ret = vfs_rename(dir_nd.path.dentry->d_inode, new_path.dentry,
++ old_nd.path.dentry->d_parent->d_inode, old_path.dentry);
++ vxdprintk(VXD_CBIT(misc, 2), "vfs_rename: %d", ret);
++ res = new_path.dentry;
++
++out_unlock:
++ mutex_unlock(&old_path.dentry->d_inode->i_sb->s_vfs_rename_mutex);
++
++out_fput_both:
++ vxdprintk(VXD_CBIT(misc, 3),
++ "fput(new_file=%p[#%ld])", new_file,
++ atomic_long_read(&new_file->f_count));
++ fput(new_file);
++
++out_fput_old:
++ vxdprintk(VXD_CBIT(misc, 3),
++ "fput(old_file=%p[#%ld])", old_file,
++ atomic_long_read(&old_file->f_count));
++ fput(old_file);
++
++out_unlock_new:
++ mutex_unlock(&dir->d_inode->i_mutex);
++ if (!ret)
++ goto out_redo;
++
++ /* error path cleanup */
++ vfs_unlink(dir->d_inode, new_path.dentry);
++ dput(new_path.dentry);
++
++out_redo:
++ if (!redo)
++ goto out_rel_both;
++ /* lookup dentry once again */
++ path_put(&old_nd.path);
++ ret = path_lookup(pathname, LOOKUP_FOLLOW, &old_nd);
++ if (ret)
++ goto out_rel_both;
++
++ new_path.dentry = old_nd.path.dentry;
++ vxdprintk(VXD_CBIT(misc, 2),
++ "path_lookup(redo): %p [»%.*s«:%d]", new_path.dentry,
++ new_path.dentry->d_name.len, new_path.dentry->d_name.name,
++ new_path.dentry->d_name.len);
++ dget(new_path.dentry);
++ res = new_path.dentry;
++
++out_rel_both:
++ path_put(&dir_nd.path);
++out_rel_old:
++ path_put(&old_nd.path);
++out_free_path:
++ kfree(path);
++out:
++ if (ret)
++ res = ERR_PTR(ret);
++ return res;
++}
++
++#endif
++
+ /* get the link contents into pagecache */
+ static char *page_getlink(struct dentry * dentry, struct page **ppage)
+ {
+diff -NurpP --minimal linux-2.6.32.1/fs/namespace.c linux-2.6.32.1-vs2.3.0.36.27/fs/namespace.c
+--- linux-2.6.32.1/fs/namespace.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/namespace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -29,6 +29,11 @@
+ #include <linux/log2.h>
+ #include <linux/idr.h>
+ #include <linux/fs_struct.h>
++#include <linux/vs_base.h>
++#include <linux/vs_context.h>
++#include <linux/vs_tag.h>
++#include <linux/vserver/space.h>
++#include <linux/vserver/global.h>
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+ #include "pnode.h"
+@@ -567,6 +572,7 @@ static struct vfsmount *clone_mnt(struct
+ mnt->mnt_root = dget(root);
+ mnt->mnt_mountpoint = mnt->mnt_root;
+ mnt->mnt_parent = mnt;
++ mnt->mnt_tag = old->mnt_tag;
+
+ if (flag & CL_SLAVE) {
+ list_add(&mnt->mnt_slave, &old->mnt_slave_list);
+@@ -661,6 +667,31 @@ static inline void mangle(struct seq_fil
+ seq_escape(m, s, " \t\n\\");
+ }
+
++static int mnt_is_reachable(struct vfsmount *mnt)
++{
++ struct path root;
++ struct dentry *point;
++ int ret;
++
++ if (mnt == mnt->mnt_ns->root)
++ return 1;
++
++ spin_lock(&vfsmount_lock);
++ root = current->fs->root;
++ point = root.dentry;
++
++ while ((mnt != mnt->mnt_parent) && (mnt != root.mnt)) {
++ point = mnt->mnt_mountpoint;
++ mnt = mnt->mnt_parent;
++ }
++
++ ret = (mnt == root.mnt) && is_subdir(point, root.dentry);
++
++ spin_unlock(&vfsmount_lock);
++
++ return ret;
++}
++
+ /*
+ * Simple .show_options callback for filesystems which don't want to
+ * implement more complex mount option showing.
+@@ -748,6 +779,8 @@ static int show_sb_opts(struct seq_file
+ { MS_SYNCHRONOUS, ",sync" },
+ { MS_DIRSYNC, ",dirsync" },
+ { MS_MANDLOCK, ",mand" },
++ { MS_TAGGED, ",tag" },
++ { MS_NOTAGCHECK, ",notagcheck" },
+ { 0, NULL }
+ };
+ const struct proc_fs_info *fs_infop;
+@@ -795,10 +828,20 @@ static int show_vfsmnt(struct seq_file *
+ int err = 0;
+ struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
+
+- mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
+- seq_putc(m, ' ');
+- seq_path(m, &mnt_path, " \t\n\\");
+- seq_putc(m, ' ');
++ if (vx_flags(VXF_HIDE_MOUNT, 0))
++ return SEQ_SKIP;
++ if (!mnt_is_reachable(mnt) && !vx_check(0, VS_WATCH_P))
++ return SEQ_SKIP;
++
++ if (!vx_check(0, VS_ADMIN|VS_WATCH) &&
++ mnt == current->fs->root.mnt) {
++ seq_puts(m, "/dev/root / ");
++ } else {
++ mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
++ seq_putc(m, ' ');
++ seq_path(m, &mnt_path, " \t\n\\");
++ seq_putc(m, ' ');
++ }
+ show_type(m, mnt->mnt_sb);
+ seq_puts(m, __mnt_is_readonly(mnt) ? " ro" : " rw");
+ err = show_sb_opts(m, mnt->mnt_sb);
+@@ -828,6 +871,11 @@ static int show_mountinfo(struct seq_fil
+ struct path root = p->root;
+ int err = 0;
+
++ if (vx_flags(VXF_HIDE_MOUNT, 0))
++ return SEQ_SKIP;
++ if (!mnt_is_reachable(mnt) && !vx_check(0, VS_WATCH_P))
++ return SEQ_SKIP;
++
+ seq_printf(m, "%i %i %u:%u ", mnt->mnt_id, mnt->mnt_parent->mnt_id,
+ MAJOR(sb->s_dev), MINOR(sb->s_dev));
+ seq_dentry(m, mnt->mnt_root, " \t\n\\");
+@@ -886,17 +934,27 @@ static int show_vfsstat(struct seq_file
+ struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
+ int err = 0;
+
+- /* device */
+- if (mnt->mnt_devname) {
+- seq_puts(m, "device ");
+- mangle(m, mnt->mnt_devname);
+- } else
+- seq_puts(m, "no device");
++ if (vx_flags(VXF_HIDE_MOUNT, 0))
++ return SEQ_SKIP;
++ if (!mnt_is_reachable(mnt) && !vx_check(0, VS_WATCH_P))
++ return SEQ_SKIP;
+
+- /* mount point */
+- seq_puts(m, " mounted on ");
+- seq_path(m, &mnt_path, " \t\n\\");
+- seq_putc(m, ' ');
++ if (!vx_check(0, VS_ADMIN|VS_WATCH) &&
++ mnt == current->fs->root.mnt) {
++ seq_puts(m, "device /dev/root mounted on / ");
++ } else {
++ /* device */
++ if (mnt->mnt_devname) {
++ seq_puts(m, "device ");
++ mangle(m, mnt->mnt_devname);
++ } else
++ seq_puts(m, "no device");
++
++ /* mount point */
++ seq_puts(m, " mounted on ");
++ seq_path(m, &mnt_path, " \t\n\\");
++ seq_putc(m, ' ');
++ }
+
+ /* file system type */
+ seq_puts(m, "with fstype ");
+@@ -1130,7 +1188,7 @@ SYSCALL_DEFINE2(umount, char __user *, n
+ goto dput_and_out;
+
+ retval = -EPERM;
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
+ goto dput_and_out;
+
+ retval = do_umount(path.mnt, flags);
+@@ -1156,7 +1214,7 @@ SYSCALL_DEFINE1(oldumount, char __user *
+
+ static int mount_is_safe(struct path *path)
+ {
+- if (capable(CAP_SYS_ADMIN))
++ if (vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
+ return 0;
+ return -EPERM;
+ #ifdef notyet
+@@ -1420,7 +1478,7 @@ static int do_change_type(struct path *p
+ int type = flag & ~MS_REC;
+ int err = 0;
+
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_NAMESPACE))
+ return -EPERM;
+
+ if (path->dentry != path->mnt->mnt_root)
+@@ -1447,11 +1505,13 @@ static int do_change_type(struct path *p
+ * do loopback mount.
+ */
+ static int do_loopback(struct path *path, char *old_name,
+- int recurse)
++ tag_t tag, unsigned long flags, int mnt_flags)
+ {
+ struct path old_path;
+ struct vfsmount *mnt = NULL;
+ int err = mount_is_safe(path);
++ int recurse = flags & MS_REC;
++
+ if (err)
+ return err;
+ if (!old_name || !*old_name)
+@@ -1485,6 +1545,7 @@ static int do_loopback(struct path *path
+ spin_unlock(&vfsmount_lock);
+ release_mounts(&umount_list);
+ }
++ mnt->mnt_flags = mnt_flags;
+
+ out:
+ up_write(&namespace_sem);
+@@ -1515,12 +1576,12 @@ static int change_mount_flags(struct vfs
+ * on it - tough luck.
+ */
+ static int do_remount(struct path *path, int flags, int mnt_flags,
+- void *data)
++ void *data, xid_t xid)
+ {
+ int err;
+ struct super_block *sb = path->mnt->mnt_sb;
+
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_REMOUNT))
+ return -EPERM;
+
+ if (!check_mnt(path->mnt))
+@@ -1562,7 +1623,7 @@ static int do_move_mount(struct path *pa
+ struct path old_path, parent_path;
+ struct vfsmount *p;
+ int err = 0;
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
+ return -EPERM;
+ if (!old_name || !*old_name)
+ return -EINVAL;
+@@ -1644,7 +1705,7 @@ static int do_new_mount(struct path *pat
+ return -EINVAL;
+
+ /* we need capabilities... */
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
+ return -EPERM;
+
+ lock_kernel();
+@@ -1908,6 +1969,7 @@ long do_mount(char *dev_name, char *dir_
+ struct path path;
+ int retval = 0;
+ int mnt_flags = 0;
++ tag_t tag = 0;
+
+ /* Discard magic */
+ if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
+@@ -1925,6 +1987,12 @@ long do_mount(char *dev_name, char *dir_
+ if (!(flags & MS_NOATIME))
+ mnt_flags |= MNT_RELATIME;
+
++ if (dx_parse_tag(data_page, &tag, 1, &mnt_flags, &flags)) {
++ /* FIXME: bind and re-mounts get the tag flag? */
++ if (flags & (MS_BIND|MS_REMOUNT))
++ flags |= MS_TAGID;
++ }
++
+ /* Separate the per-mountpoint flags */
+ if (flags & MS_NOSUID)
+ mnt_flags |= MNT_NOSUID;
+@@ -1941,6 +2009,8 @@ long do_mount(char *dev_name, char *dir_
+ if (flags & MS_RDONLY)
+ mnt_flags |= MNT_READONLY;
+
++ if (!capable(CAP_SYS_ADMIN))
++ mnt_flags |= MNT_NODEV;
+ flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE |
+ MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
+ MS_STRICTATIME);
+@@ -1957,9 +2027,9 @@ long do_mount(char *dev_name, char *dir_
+
+ if (flags & MS_REMOUNT)
+ retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
+- data_page);
++ data_page, tag);
+ else if (flags & MS_BIND)
+- retval = do_loopback(&path, dev_name, flags & MS_REC);
++ retval = do_loopback(&path, dev_name, tag, flags, mnt_flags);
+ else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
+ retval = do_change_type(&path, flags);
+ else if (flags & MS_MOVE)
+@@ -2038,6 +2108,7 @@ static struct mnt_namespace *dup_mnt_ns(
+ q = next_mnt(q, new_ns->root);
+ }
+ up_write(&namespace_sem);
++ atomic_inc(&vs_global_mnt_ns);
+
+ if (rootmnt)
+ mntput(rootmnt);
+@@ -2182,9 +2253,10 @@ SYSCALL_DEFINE2(pivot_root, const char _
+ down_write(&namespace_sem);
+ mutex_lock(&old.dentry->d_inode->i_mutex);
+ error = -EINVAL;
+- if (IS_MNT_SHARED(old.mnt) ||
++ if ((IS_MNT_SHARED(old.mnt) ||
+ IS_MNT_SHARED(new.mnt->mnt_parent) ||
+- IS_MNT_SHARED(root.mnt->mnt_parent))
++ IS_MNT_SHARED(root.mnt->mnt_parent)) &&
++ !vx_flags(VXF_STATE_SETUP, 0))
+ goto out2;
+ if (!check_mnt(root.mnt))
+ goto out2;
+@@ -2320,6 +2392,7 @@ void put_mnt_ns(struct mnt_namespace *ns
+ spin_unlock(&vfsmount_lock);
+ up_write(&namespace_sem);
+ release_mounts(&umount_list);
++ atomic_dec(&vs_global_mnt_ns);
+ kfree(ns);
+ }
+ EXPORT_SYMBOL(put_mnt_ns);
+diff -NurpP --minimal linux-2.6.32.1/fs/nfs/client.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/client.c
+--- linux-2.6.32.1/fs/nfs/client.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/client.c 2009-12-03 20:04:56.000000000 +0100
+@@ -738,6 +738,9 @@ static int nfs_init_server_rpcclient(str
+ if (server->flags & NFS_MOUNT_SOFT)
+ server->client->cl_softrtry = 1;
+
++ server->client->cl_tag = 0;
++ if (server->flags & NFS_MOUNT_TAGGED)
++ server->client->cl_tag = 1;
+ return 0;
+ }
+
+@@ -909,6 +912,10 @@ static void nfs_server_set_fsinfo(struct
+ server->acdirmin = server->acdirmax = 0;
+ }
+
++ /* FIXME: needs fsinfo
++ if (server->flags & NFS_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED; */
++
+ server->maxfilesize = fsinfo->maxfilesize;
+
+ /* We're airborne Set socket buffersize */
+diff -NurpP --minimal linux-2.6.32.1/fs/nfs/dir.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/dir.c
+--- linux-2.6.32.1/fs/nfs/dir.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/dir.c 2009-12-03 20:04:56.000000000 +0100
+@@ -33,6 +33,7 @@
+ #include <linux/namei.h>
+ #include <linux/mount.h>
+ #include <linux/sched.h>
++#include <linux/vs_tag.h>
+
+ #include "nfs4_fs.h"
+ #include "delegation.h"
+@@ -949,6 +950,7 @@ static struct dentry *nfs_lookup(struct
+ if (IS_ERR(res))
+ goto out_unblock_sillyrename;
+
++ dx_propagate_tag(nd, inode);
+ no_entry:
+ res = d_materialise_unique(dentry, inode);
+ if (res != NULL) {
+diff -NurpP --minimal linux-2.6.32.1/fs/nfs/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/inode.c
+--- linux-2.6.32.1/fs/nfs/inode.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -36,6 +36,7 @@
+ #include <linux/vfs.h>
+ #include <linux/inet.h>
+ #include <linux/nfs_xdr.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+@@ -279,6 +280,8 @@ nfs_fhget(struct super_block *sb, struct
+ if (inode->i_state & I_NEW) {
+ struct nfs_inode *nfsi = NFS_I(inode);
+ unsigned long now = jiffies;
++ uid_t uid;
++ gid_t gid;
+
+ /* We set i_ino for the few things that still rely on it,
+ * such as stat(2) */
+@@ -327,8 +330,8 @@ nfs_fhget(struct super_block *sb, struct
+ nfsi->change_attr = 0;
+ inode->i_size = 0;
+ inode->i_nlink = 0;
+- inode->i_uid = -2;
+- inode->i_gid = -2;
++ uid = -2;
++ gid = -2;
+ inode->i_blocks = 0;
+ memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
+
+@@ -365,13 +368,13 @@ nfs_fhget(struct super_block *sb, struct
+ else if (nfs_server_capable(inode, NFS_CAP_NLINK))
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
+ if (fattr->valid & NFS_ATTR_FATTR_OWNER)
+- inode->i_uid = fattr->uid;
++ uid = fattr->uid;
+ else if (nfs_server_capable(inode, NFS_CAP_OWNER))
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR
+ | NFS_INO_INVALID_ACCESS
+ | NFS_INO_INVALID_ACL;
+ if (fattr->valid & NFS_ATTR_FATTR_GROUP)
+- inode->i_gid = fattr->gid;
++ gid = fattr->gid;
+ else if (nfs_server_capable(inode, NFS_CAP_OWNER_GROUP))
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR
+ | NFS_INO_INVALID_ACCESS
+@@ -384,6 +387,11 @@ nfs_fhget(struct super_block *sb, struct
+ */
+ inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
+ }
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, 0);
++ /* maybe fattr->xid someday */
++
+ nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
+ nfsi->attrtimeo_timestamp = now;
+ nfsi->access_cache = RB_ROOT;
+@@ -496,6 +504,8 @@ void nfs_setattr_update_inode(struct ino
+ inode->i_uid = attr->ia_uid;
+ if ((attr->ia_valid & ATTR_GID) != 0)
+ inode->i_gid = attr->ia_gid;
++ if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ spin_unlock(&inode->i_lock);
+ }
+@@ -906,6 +916,9 @@ static int nfs_check_inode_attributes(st
+ struct nfs_inode *nfsi = NFS_I(inode);
+ loff_t cur_size, new_isize;
+ unsigned long invalid = 0;
++ uid_t uid;
++ gid_t gid;
++ tag_t tag;
+
+
+ /* Has the inode gone and changed behind our back? */
+@@ -929,13 +942,18 @@ static int nfs_check_inode_attributes(st
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
+ }
+
++ uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid);
++ gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid);
++ tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0);
++
+ /* Have any file permissions changed? */
+ if ((fattr->valid & NFS_ATTR_FATTR_MODE) && (inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO))
+ invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
+- if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && inode->i_uid != fattr->uid)
++ if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && uid != fattr->uid)
+ invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
+- if ((fattr->valid & NFS_ATTR_FATTR_GROUP) && inode->i_gid != fattr->gid)
++ if ((fattr->valid & NFS_ATTR_FATTR_GROUP) && gid != fattr->gid)
+ invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
++ /* maybe check for tag too? */
+
+ /* Has the link count changed? */
+ if ((fattr->valid & NFS_ATTR_FATTR_NLINK) && inode->i_nlink != fattr->nlink)
+@@ -1150,6 +1168,9 @@ static int nfs_update_inode(struct inode
+ unsigned long invalid = 0;
+ unsigned long now = jiffies;
+ unsigned long save_cache_validity;
++ uid_t uid;
++ gid_t gid;
++ tag_t tag;
+
+ dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
+ __func__, inode->i_sb->s_id, inode->i_ino,
+@@ -1252,6 +1273,9 @@ static int nfs_update_inode(struct inode
+ | NFS_INO_REVAL_PAGECACHE
+ | NFS_INO_REVAL_FORCED);
+
++ uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid);
++ gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid);
++ tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0);
+
+ if (fattr->valid & NFS_ATTR_FATTR_ATIME)
+ memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
+@@ -1271,9 +1295,9 @@ static int nfs_update_inode(struct inode
+ | NFS_INO_REVAL_FORCED);
+
+ if (fattr->valid & NFS_ATTR_FATTR_OWNER) {
+- if (inode->i_uid != fattr->uid) {
++ if (uid != fattr->uid) {
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+- inode->i_uid = fattr->uid;
++ uid = fattr->uid;
+ }
+ } else if (server->caps & NFS_CAP_OWNER)
+ invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+@@ -1282,9 +1306,9 @@ static int nfs_update_inode(struct inode
+ | NFS_INO_REVAL_FORCED);
+
+ if (fattr->valid & NFS_ATTR_FATTR_GROUP) {
+- if (inode->i_gid != fattr->gid) {
++ if (gid != fattr->gid) {
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+- inode->i_gid = fattr->gid;
++ gid = fattr->gid;
+ }
+ } else if (server->caps & NFS_CAP_OWNER_GROUP)
+ invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+@@ -1292,6 +1316,10 @@ static int nfs_update_inode(struct inode
+ | NFS_INO_INVALID_ACL
+ | NFS_INO_REVAL_FORCED);
+
++ inode->i_uid = uid;
++ inode->i_gid = gid;
++ inode->i_tag = tag;
++
+ if (fattr->valid & NFS_ATTR_FATTR_NLINK) {
+ if (inode->i_nlink != fattr->nlink) {
+ invalid |= NFS_INO_INVALID_ATTR;
+diff -NurpP --minimal linux-2.6.32.1/fs/nfs/nfs3xdr.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/nfs3xdr.c
+--- linux-2.6.32.1/fs/nfs/nfs3xdr.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/nfs3xdr.c 2009-12-03 20:04:56.000000000 +0100
+@@ -21,6 +21,7 @@
+ #include <linux/nfs3.h>
+ #include <linux/nfs_fs.h>
+ #include <linux/nfsacl.h>
++#include <linux/vs_tag.h>
+ #include "internal.h"
+
+ #define NFSDBG_FACILITY NFSDBG_XDR
+@@ -176,7 +177,7 @@ xdr_decode_fattr(__be32 *p, struct nfs_f
+ }
+
+ static inline __be32 *
+-xdr_encode_sattr(__be32 *p, struct iattr *attr)
++xdr_encode_sattr(__be32 *p, struct iattr *attr, int tag)
+ {
+ if (attr->ia_valid & ATTR_MODE) {
+ *p++ = xdr_one;
+@@ -184,15 +185,17 @@ xdr_encode_sattr(__be32 *p, struct iattr
+ } else {
+ *p++ = xdr_zero;
+ }
+- if (attr->ia_valid & ATTR_UID) {
++ if (attr->ia_valid & ATTR_UID ||
++ (tag && (attr->ia_valid & ATTR_TAG))) {
+ *p++ = xdr_one;
+- *p++ = htonl(attr->ia_uid);
++ *p++ = htonl(TAGINO_UID(tag, attr->ia_uid, attr->ia_tag));
+ } else {
+ *p++ = xdr_zero;
+ }
+- if (attr->ia_valid & ATTR_GID) {
++ if (attr->ia_valid & ATTR_GID ||
++ (tag && (attr->ia_valid & ATTR_TAG))) {
+ *p++ = xdr_one;
+- *p++ = htonl(attr->ia_gid);
++ *p++ = htonl(TAGINO_GID(tag, attr->ia_gid, attr->ia_tag));
+ } else {
+ *p++ = xdr_zero;
+ }
+@@ -279,7 +282,8 @@ static int
+ nfs3_xdr_sattrargs(struct rpc_rqst *req, __be32 *p, struct nfs3_sattrargs *args)
+ {
+ p = xdr_encode_fhandle(p, args->fh);
+- p = xdr_encode_sattr(p, args->sattr);
++ p = xdr_encode_sattr(p, args->sattr,
++ req->rq_task->tk_client->cl_tag);
+ *p++ = htonl(args->guard);
+ if (args->guard)
+ p = xdr_encode_time3(p, &args->guardtime);
+@@ -384,7 +388,8 @@ nfs3_xdr_createargs(struct rpc_rqst *req
+ *p++ = args->verifier[0];
+ *p++ = args->verifier[1];
+ } else
+- p = xdr_encode_sattr(p, args->sattr);
++ p = xdr_encode_sattr(p, args->sattr,
++ req->rq_task->tk_client->cl_tag);
+
+ req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ return 0;
+@@ -398,7 +403,8 @@ nfs3_xdr_mkdirargs(struct rpc_rqst *req,
+ {
+ p = xdr_encode_fhandle(p, args->fh);
+ p = xdr_encode_array(p, args->name, args->len);
+- p = xdr_encode_sattr(p, args->sattr);
++ p = xdr_encode_sattr(p, args->sattr,
++ req->rq_task->tk_client->cl_tag);
+ req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ return 0;
+ }
+@@ -411,7 +417,8 @@ nfs3_xdr_symlinkargs(struct rpc_rqst *re
+ {
+ p = xdr_encode_fhandle(p, args->fromfh);
+ p = xdr_encode_array(p, args->fromname, args->fromlen);
+- p = xdr_encode_sattr(p, args->sattr);
++ p = xdr_encode_sattr(p, args->sattr,
++ req->rq_task->tk_client->cl_tag);
+ *p++ = htonl(args->pathlen);
+ req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+
+@@ -429,7 +436,8 @@ nfs3_xdr_mknodargs(struct rpc_rqst *req,
+ p = xdr_encode_fhandle(p, args->fh);
+ p = xdr_encode_array(p, args->name, args->len);
+ *p++ = htonl(args->type);
+- p = xdr_encode_sattr(p, args->sattr);
++ p = xdr_encode_sattr(p, args->sattr,
++ req->rq_task->tk_client->cl_tag);
+ if (args->type == NF3CHR || args->type == NF3BLK) {
+ *p++ = htonl(MAJOR(args->rdev));
+ *p++ = htonl(MINOR(args->rdev));
+diff -NurpP --minimal linux-2.6.32.1/fs/nfs/nfsroot.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/nfsroot.c
+--- linux-2.6.32.1/fs/nfs/nfsroot.c 2009-09-10 15:26:23.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/nfsroot.c 2009-12-03 20:04:56.000000000 +0100
+@@ -122,12 +122,12 @@ static int mount_port __initdata = 0; /
+ enum {
+ /* Options that take integer arguments */
+ Opt_port, Opt_rsize, Opt_wsize, Opt_timeo, Opt_retrans, Opt_acregmin,
+- Opt_acregmax, Opt_acdirmin, Opt_acdirmax,
++ Opt_acregmax, Opt_acdirmin, Opt_acdirmax, Opt_tagid,
+ /* Options that take no arguments */
+ Opt_soft, Opt_hard, Opt_intr,
+ Opt_nointr, Opt_posix, Opt_noposix, Opt_cto, Opt_nocto, Opt_ac,
+ Opt_noac, Opt_lock, Opt_nolock, Opt_v2, Opt_v3, Opt_udp, Opt_tcp,
+- Opt_acl, Opt_noacl,
++ Opt_acl, Opt_noacl, Opt_tag, Opt_notag,
+ /* Error token */
+ Opt_err
+ };
+@@ -164,6 +164,9 @@ static const match_table_t tokens __init
+ {Opt_tcp, "tcp"},
+ {Opt_acl, "acl"},
+ {Opt_noacl, "noacl"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL}
+
+ };
+@@ -275,6 +278,20 @@ static int __init root_nfs_parse(char *n
+ case Opt_noacl:
+ nfs_data.flags |= NFS_MOUNT_NOACL;
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ nfs_data.flags |= NFS_MOUNT_TAGGED;
++ break;
++ case Opt_notag:
++ nfs_data.flags &= ~NFS_MOUNT_TAGGED;
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ nfs_data.flags |= NFS_MOUNT_TAGGED;
++ break;
++#endif
+ default:
+ printk(KERN_WARNING "Root-NFS: unknown "
+ "option: %s\n", p);
+diff -NurpP --minimal linux-2.6.32.1/fs/nfs/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/super.c
+--- linux-2.6.32.1/fs/nfs/super.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfs/super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -53,6 +53,7 @@
+ #include <linux/nfs_xdr.h>
+ #include <linux/magic.h>
+ #include <linux/parser.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+@@ -551,6 +552,7 @@ static void nfs_show_mount_options(struc
+ { NFS_MOUNT_NORDIRPLUS, ",nordirplus", "" },
+ { NFS_MOUNT_UNSHARED, ",nosharecache", "" },
+ { NFS_MOUNT_NORESVPORT, ",noresvport", "" },
++ { NFS_MOUNT_TAGGED, ",tag", "" },
+ { 0, NULL, NULL }
+ };
+ const struct proc_nfs_info *nfs_infop;
+diff -NurpP --minimal linux-2.6.32.1/fs/nfsd/auth.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfsd/auth.c
+--- linux-2.6.32.1/fs/nfsd/auth.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfsd/auth.c 2009-12-03 20:04:56.000000000 +0100
+@@ -10,6 +10,7 @@
+ #include <linux/sunrpc/svcauth.h>
+ #include <linux/nfsd/nfsd.h>
+ #include <linux/nfsd/export.h>
++#include <linux/vs_tag.h>
+ #include "auth.h"
+
+ int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp)
+@@ -44,6 +45,9 @@ int nfsd_setuser(struct svc_rqst *rqstp,
+
+ new->fsuid = rqstp->rq_cred.cr_uid;
+ new->fsgid = rqstp->rq_cred.cr_gid;
++ /* FIXME: this desperately needs a tag :)
++ new->xid = (xid_t)INOTAG_TAG(DX_TAG_NFSD, cred.cr_uid, cred.cr_gid, 0);
++ */
+
+ rqgi = rqstp->rq_cred.cr_group_info;
+
+diff -NurpP --minimal linux-2.6.32.1/fs/nfsd/nfs3xdr.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfsd/nfs3xdr.c
+--- linux-2.6.32.1/fs/nfsd/nfs3xdr.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfsd/nfs3xdr.c 2009-12-03 20:04:56.000000000 +0100
+@@ -21,6 +21,7 @@
+ #include <linux/sunrpc/svc.h>
+ #include <linux/nfsd/nfsd.h>
+ #include <linux/nfsd/xdr3.h>
++#include <linux/vs_tag.h>
+ #include "auth.h"
+
+ #define NFSDDBG_FACILITY NFSDDBG_XDR
+@@ -108,6 +109,8 @@ static __be32 *
+ decode_sattr3(__be32 *p, struct iattr *iap)
+ {
+ u32 tmp;
++ uid_t uid = 0;
++ gid_t gid = 0;
+
+ iap->ia_valid = 0;
+
+@@ -117,12 +120,15 @@ decode_sattr3(__be32 *p, struct iattr *i
+ }
+ if (*p++) {
+ iap->ia_valid |= ATTR_UID;
+- iap->ia_uid = ntohl(*p++);
++ uid = ntohl(*p++);
+ }
+ if (*p++) {
+ iap->ia_valid |= ATTR_GID;
+- iap->ia_gid = ntohl(*p++);
++ gid = ntohl(*p++);
+ }
++ iap->ia_uid = INOTAG_UID(DX_TAG_NFSD, uid, gid);
++ iap->ia_gid = INOTAG_GID(DX_TAG_NFSD, uid, gid);
++ iap->ia_tag = INOTAG_TAG(DX_TAG_NFSD, uid, gid, 0);
+ if (*p++) {
+ u64 newsize;
+
+@@ -178,8 +184,12 @@ encode_fattr3(struct svc_rqst *rqstp, __
+ *p++ = htonl(nfs3_ftypes[(stat->mode & S_IFMT) >> 12]);
+ *p++ = htonl((u32) stat->mode);
+ *p++ = htonl((u32) stat->nlink);
+- *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid));
+- *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid));
++ *p++ = htonl((u32) nfsd_ruid(rqstp,
++ TAGINO_UID(0 /* FIXME: DX_TAG(dentry->d_inode) */,
++ stat->uid, stat->tag)));
++ *p++ = htonl((u32) nfsd_rgid(rqstp,
++ TAGINO_GID(0 /* FIXME: DX_TAG(dentry->d_inode) */,
++ stat->gid, stat->tag)));
+ if (S_ISLNK(stat->mode) && stat->size > NFS3_MAXPATHLEN) {
+ p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
+ } else {
+diff -NurpP --minimal linux-2.6.32.1/fs/nfsd/nfs4xdr.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfsd/nfs4xdr.c
+--- linux-2.6.32.1/fs/nfsd/nfs4xdr.c 2009-12-03 20:02:52.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfsd/nfs4xdr.c 2009-12-03 20:04:56.000000000 +0100
+@@ -57,6 +57,7 @@
+ #include <linux/nfs4_acl.h>
+ #include <linux/sunrpc/gss_api.h>
+ #include <linux/sunrpc/svcauth_gss.h>
++#include <linux/vs_tag.h>
+
+ #define NFSDDBG_FACILITY NFSDDBG_XDR
+
+@@ -2050,14 +2051,18 @@ out_acl:
+ WRITE32(stat.nlink);
+ }
+ if (bmval1 & FATTR4_WORD1_OWNER) {
+- status = nfsd4_encode_user(rqstp, stat.uid, &p, &buflen);
++ status = nfsd4_encode_user(rqstp,
++ TAGINO_UID(DX_TAG(dentry->d_inode),
++ stat.uid, stat.tag), &p, &buflen);
+ if (status == nfserr_resource)
+ goto out_resource;
+ if (status)
+ goto out;
+ }
+ if (bmval1 & FATTR4_WORD1_OWNER_GROUP) {
+- status = nfsd4_encode_group(rqstp, stat.gid, &p, &buflen);
++ status = nfsd4_encode_group(rqstp,
++ TAGINO_GID(DX_TAG(dentry->d_inode),
++ stat.gid, stat.tag), &p, &buflen);
+ if (status == nfserr_resource)
+ goto out_resource;
+ if (status)
+diff -NurpP --minimal linux-2.6.32.1/fs/nfsd/nfsxdr.c linux-2.6.32.1-vs2.3.0.36.27/fs/nfsd/nfsxdr.c
+--- linux-2.6.32.1/fs/nfsd/nfsxdr.c 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/nfsd/nfsxdr.c 2009-12-03 20:04:56.000000000 +0100
+@@ -15,6 +15,7 @@
+ #include <linux/nfsd/nfsd.h>
+ #include <linux/nfsd/xdr.h>
+ #include <linux/mm.h>
++#include <linux/vs_tag.h>
+ #include "auth.h"
+
+ #define NFSDDBG_FACILITY NFSDDBG_XDR
+@@ -98,6 +99,8 @@ static __be32 *
+ decode_sattr(__be32 *p, struct iattr *iap)
+ {
+ u32 tmp, tmp1;
++ uid_t uid = 0;
++ gid_t gid = 0;
+
+ iap->ia_valid = 0;
+
+@@ -111,12 +114,15 @@ decode_sattr(__be32 *p, struct iattr *ia
+ }
+ if ((tmp = ntohl(*p++)) != (u32)-1) {
+ iap->ia_valid |= ATTR_UID;
+- iap->ia_uid = tmp;
++ uid = tmp;
+ }
+ if ((tmp = ntohl(*p++)) != (u32)-1) {
+ iap->ia_valid |= ATTR_GID;
+- iap->ia_gid = tmp;
++ gid = tmp;
+ }
++ iap->ia_uid = INOTAG_UID(DX_TAG_NFSD, uid, gid);
++ iap->ia_gid = INOTAG_GID(DX_TAG_NFSD, uid, gid);
++ iap->ia_tag = INOTAG_TAG(DX_TAG_NFSD, uid, gid, 0);
+ if ((tmp = ntohl(*p++)) != (u32)-1) {
+ iap->ia_valid |= ATTR_SIZE;
+ iap->ia_size = tmp;
+@@ -161,8 +167,10 @@ encode_fattr(struct svc_rqst *rqstp, __b
+ *p++ = htonl(nfs_ftypes[type >> 12]);
+ *p++ = htonl((u32) stat->mode);
+ *p++ = htonl((u32) stat->nlink);
+- *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid));
+- *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid));
++ *p++ = htonl((u32) nfsd_ruid(rqstp,
++ TAGINO_UID(DX_TAG(dentry->d_inode), stat->uid, stat->tag)));
++ *p++ = htonl((u32) nfsd_rgid(rqstp,
++ TAGINO_GID(DX_TAG(dentry->d_inode), stat->gid, stat->tag)));
+
+ if (S_ISLNK(type) && stat->size > NFS_MAXPATHLEN) {
+ *p++ = htonl(NFS_MAXPATHLEN);
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/dlm/dlmfs.c linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/dlm/dlmfs.c
+--- linux-2.6.32.1/fs/ocfs2/dlm/dlmfs.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/dlm/dlmfs.c 2009-12-03 20:04:56.000000000 +0100
+@@ -43,6 +43,7 @@
+ #include <linux/init.h>
+ #include <linux/string.h>
+ #include <linux/backing-dev.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/uaccess.h>
+
+@@ -342,6 +343,7 @@ static struct inode *dlmfs_get_root_inod
+ inode->i_mode = mode;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = current_fsgid();
++ inode->i_tag = dx_current_fstag(sb);
+ inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
+ inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ inc_nlink(inode);
+@@ -367,6 +369,7 @@ static struct inode *dlmfs_get_inode(str
+ inode->i_mode = mode;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = current_fsgid();
++ inode->i_tag = dx_current_fstag(sb);
+ inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
+ inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/dlmglue.c linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/dlmglue.c
+--- linux-2.6.32.1/fs/ocfs2/dlmglue.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/dlmglue.c 2009-12-03 20:04:56.000000000 +0100
+@@ -1991,6 +1991,7 @@ static void __ocfs2_stuff_meta_lvb(struc
+ lvb->lvb_iclusters = cpu_to_be32(oi->ip_clusters);
+ lvb->lvb_iuid = cpu_to_be32(inode->i_uid);
+ lvb->lvb_igid = cpu_to_be32(inode->i_gid);
++ lvb->lvb_itag = cpu_to_be16(inode->i_tag);
+ lvb->lvb_imode = cpu_to_be16(inode->i_mode);
+ lvb->lvb_inlink = cpu_to_be16(inode->i_nlink);
+ lvb->lvb_iatime_packed =
+@@ -2045,6 +2046,7 @@ static void ocfs2_refresh_inode_from_lvb
+
+ inode->i_uid = be32_to_cpu(lvb->lvb_iuid);
+ inode->i_gid = be32_to_cpu(lvb->lvb_igid);
++ inode->i_tag = be16_to_cpu(lvb->lvb_itag);
+ inode->i_mode = be16_to_cpu(lvb->lvb_imode);
+ inode->i_nlink = be16_to_cpu(lvb->lvb_inlink);
+ ocfs2_unpack_timespec(&inode->i_atime,
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/dlmglue.h linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/dlmglue.h
+--- linux-2.6.32.1/fs/ocfs2/dlmglue.h 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/dlmglue.h 2009-12-03 20:04:56.000000000 +0100
+@@ -46,7 +46,8 @@ struct ocfs2_meta_lvb {
+ __be16 lvb_inlink;
+ __be32 lvb_iattr;
+ __be32 lvb_igeneration;
+- __be32 lvb_reserved2;
++ __be16 lvb_itag;
++ __be16 lvb_reserved2;
+ };
+
+ #define OCFS2_QINFO_LVB_VERSION 1
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/file.c linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/file.c
+--- linux-2.6.32.1/fs/ocfs2/file.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/file.c 2009-12-03 20:04:56.000000000 +0100
+@@ -960,13 +960,15 @@ int ocfs2_setattr(struct dentry *dentry,
+ mlog(0, "uid change: %d\n", attr->ia_uid);
+ if (attr->ia_valid & ATTR_GID)
+ mlog(0, "gid change: %d\n", attr->ia_gid);
++ if (attr->ia_valid & ATTR_TAG)
++ mlog(0, "tag change: %d\n", attr->ia_tag);
+ if (attr->ia_valid & ATTR_SIZE)
+ mlog(0, "size change...\n");
+ if (attr->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_CTIME))
+ mlog(0, "time change...\n");
+
+ #define OCFS2_VALID_ATTRS (ATTR_ATIME | ATTR_MTIME | ATTR_CTIME | ATTR_SIZE \
+- | ATTR_GID | ATTR_UID | ATTR_MODE)
++ | ATTR_GID | ATTR_UID | ATTR_TAG | ATTR_MODE)
+ if (!(attr->ia_valid & OCFS2_VALID_ATTRS)) {
+ mlog(0, "can't handle attrs: 0x%x\n", attr->ia_valid);
+ return 0;
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/inode.c
+--- linux-2.6.32.1/fs/ocfs2/inode.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -29,6 +29,7 @@
+ #include <linux/highmem.h>
+ #include <linux/pagemap.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/byteorder.h>
+
+@@ -79,11 +80,13 @@ void ocfs2_set_inode_flags(struct inode
+ {
+ unsigned int flags = OCFS2_I(inode)->ip_attr;
+
+- inode->i_flags &= ~(S_IMMUTABLE |
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
+ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+ if (flags & OCFS2_IMMUTABLE_FL)
+ inode->i_flags |= S_IMMUTABLE;
++ if (flags & OCFS2_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
+
+ if (flags & OCFS2_SYNC_FL)
+ inode->i_flags |= S_SYNC;
+@@ -93,25 +96,44 @@ void ocfs2_set_inode_flags(struct inode
+ inode->i_flags |= S_NOATIME;
+ if (flags & OCFS2_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & OCFS2_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & OCFS2_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ /* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */
+ void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi)
+ {
+ unsigned int flags = oi->vfs_inode.i_flags;
++ unsigned int vflags = oi->vfs_inode.i_vflags;
++
++ oi->ip_attr &= ~(OCFS2_SYNC_FL | OCFS2_APPEND_FL |
++ OCFS2_IMMUTABLE_FL | OCFS2_IXUNLINK_FL |
++ OCFS2_NOATIME_FL | OCFS2_DIRSYNC_FL |
++ OCFS2_BARRIER_FL | OCFS2_COW_FL);
++
++ if (flags & S_IMMUTABLE)
++ oi->ip_attr |= OCFS2_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ oi->ip_attr |= OCFS2_IXUNLINK_FL;
+
+- oi->ip_attr &= ~(OCFS2_SYNC_FL|OCFS2_APPEND_FL|
+- OCFS2_IMMUTABLE_FL|OCFS2_NOATIME_FL|OCFS2_DIRSYNC_FL);
+ if (flags & S_SYNC)
+ oi->ip_attr |= OCFS2_SYNC_FL;
+ if (flags & S_APPEND)
+ oi->ip_attr |= OCFS2_APPEND_FL;
+- if (flags & S_IMMUTABLE)
+- oi->ip_attr |= OCFS2_IMMUTABLE_FL;
+ if (flags & S_NOATIME)
+ oi->ip_attr |= OCFS2_NOATIME_FL;
+ if (flags & S_DIRSYNC)
+ oi->ip_attr |= OCFS2_DIRSYNC_FL;
++
++ if (vflags & V_BARRIER)
++ oi->ip_attr |= OCFS2_BARRIER_FL;
++ if (vflags & V_COW)
++ oi->ip_attr |= OCFS2_COW_FL;
+ }
+
+ struct inode *ocfs2_ilookup(struct super_block *sb, u64 blkno)
+@@ -246,6 +268,8 @@ void ocfs2_populate_inode(struct inode *
+ struct super_block *sb;
+ struct ocfs2_super *osb;
+ int use_plocks = 1;
++ uid_t uid;
++ gid_t gid;
+
+ mlog_entry("(0x%p, size:%llu)\n", inode,
+ (unsigned long long)le64_to_cpu(fe->i_size));
+@@ -277,8 +301,12 @@ void ocfs2_populate_inode(struct inode *
+ inode->i_generation = le32_to_cpu(fe->i_generation);
+ inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
+ inode->i_mode = le16_to_cpu(fe->i_mode);
+- inode->i_uid = le32_to_cpu(fe->i_uid);
+- inode->i_gid = le32_to_cpu(fe->i_gid);
++ uid = le32_to_cpu(fe->i_uid);
++ gid = le32_to_cpu(fe->i_gid);
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ /* le16_to_cpu(raw_inode->i_raw_tag)i */ 0);
+
+ /* Fast symlinks will have i_size but no allocated clusters. */
+ if (S_ISLNK(inode->i_mode) && !fe->i_clusters)
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/inode.h linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/inode.h
+--- linux-2.6.32.1/fs/ocfs2/inode.h 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/inode.h 2009-12-03 20:04:56.000000000 +0100
+@@ -150,6 +150,7 @@ struct buffer_head *ocfs2_bread(struct i
+
+ void ocfs2_set_inode_flags(struct inode *inode);
+ void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi);
++int ocfs2_sync_flags(struct inode *inode, int, int);
+
+ static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode)
+ {
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/ioctl.c
+--- linux-2.6.32.1/fs/ocfs2/ioctl.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -42,7 +42,41 @@ static int ocfs2_get_inode_attr(struct i
+ return status;
+ }
+
+-static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
++int ocfs2_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
++ struct buffer_head *bh = NULL;
++ handle_t *handle = NULL;
++ int status;
++
++ status = ocfs2_inode_lock(inode, &bh, 1);
++ if (status < 0) {
++ mlog_errno(status);
++ return status;
++ }
++ handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
++ if (IS_ERR(handle)) {
++ status = PTR_ERR(handle);
++ mlog_errno(status);
++ goto bail_unlock;
++ }
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ ocfs2_get_inode_flags(OCFS2_I(inode));
++
++ status = ocfs2_mark_inode_dirty(handle, inode, bh);
++ if (status < 0)
++ mlog_errno(status);
++
++ ocfs2_commit_trans(osb, handle);
++bail_unlock:
++ ocfs2_inode_unlock(inode, 1);
++ brelse(bh);
++ return status;
++}
++
++int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
+ unsigned mask)
+ {
+ struct ocfs2_inode_info *ocfs2_inode = OCFS2_I(inode);
+@@ -67,6 +101,11 @@ static int ocfs2_set_inode_attr(struct i
+ if (!S_ISDIR(inode->i_mode))
+ flags &= ~OCFS2_DIRSYNC_FL;
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ goto bail_unlock;
++ }
++
+ handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+@@ -108,6 +147,7 @@ bail:
+ return status;
+ }
+
++
+ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_path.dentry->d_inode;
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/namei.c linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/namei.c
+--- linux-2.6.32.1/fs/ocfs2/namei.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/namei.c 2009-12-03 20:04:56.000000000 +0100
+@@ -41,6 +41,7 @@
+ #include <linux/slab.h>
+ #include <linux/highmem.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+
+ #define MLOG_MASK_PREFIX ML_NAMEI
+ #include <cluster/masklog.h>
+@@ -481,6 +482,7 @@ static int ocfs2_mknod_locked(struct ocf
+ u64 fe_blkno = 0;
+ u16 suballoc_bit;
+ u16 feat;
++ tag_t tag;
+
+ *new_fe_bh = NULL;
+
+@@ -524,8 +526,11 @@ static int ocfs2_mknod_locked(struct ocf
+ fe->i_blkno = cpu_to_le64(fe_blkno);
+ fe->i_suballoc_bit = cpu_to_le16(suballoc_bit);
+ fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot);
+- fe->i_uid = cpu_to_le32(inode->i_uid);
+- fe->i_gid = cpu_to_le32(inode->i_gid);
++
++ tag = dx_current_fstag(osb->sb);
++ fe->i_uid = cpu_to_le32(TAGINO_UID(DX_TAG(inode), inode->i_uid, tag));
++ fe->i_gid = cpu_to_le32(TAGINO_GID(DX_TAG(inode), inode->i_gid, tag));
++ inode->i_tag = tag;
+ fe->i_mode = cpu_to_le16(inode->i_mode);
+ if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+ fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev));
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/ocfs2_fs.h linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/ocfs2_fs.h
+--- linux-2.6.32.1/fs/ocfs2/ocfs2_fs.h 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/ocfs2_fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -231,18 +231,23 @@
+ #define OCFS2_HAS_REFCOUNT_FL (0x0010)
+
+ /* Inode attributes, keep in sync with EXT2 */
+-#define OCFS2_SECRM_FL (0x00000001) /* Secure deletion */
+-#define OCFS2_UNRM_FL (0x00000002) /* Undelete */
+-#define OCFS2_COMPR_FL (0x00000004) /* Compress file */
+-#define OCFS2_SYNC_FL (0x00000008) /* Synchronous updates */
+-#define OCFS2_IMMUTABLE_FL (0x00000010) /* Immutable file */
+-#define OCFS2_APPEND_FL (0x00000020) /* writes to file may only append */
+-#define OCFS2_NODUMP_FL (0x00000040) /* do not dump file */
+-#define OCFS2_NOATIME_FL (0x00000080) /* do not update atime */
+-#define OCFS2_DIRSYNC_FL (0x00010000) /* dirsync behaviour (directories only) */
++#define OCFS2_SECRM_FL FS_SECRM_FL /* Secure deletion */
++#define OCFS2_UNRM_FL FS_UNRM_FL /* Undelete */
++#define OCFS2_COMPR_FL FS_COMPR_FL /* Compress file */
++#define OCFS2_SYNC_FL FS_SYNC_FL /* Synchronous updates */
++#define OCFS2_IMMUTABLE_FL FS_IMMUTABLE_FL /* Immutable file */
++#define OCFS2_APPEND_FL FS_APPEND_FL /* writes to file may only append */
++#define OCFS2_NODUMP_FL FS_NODUMP_FL /* do not dump file */
++#define OCFS2_NOATIME_FL FS_NOATIME_FL /* do not update atime */
+
+-#define OCFS2_FL_VISIBLE (0x000100FF) /* User visible flags */
+-#define OCFS2_FL_MODIFIABLE (0x000100FF) /* User modifiable flags */
++#define OCFS2_DIRSYNC_FL FS_DIRSYNC_FL /* dirsync behaviour (directories only) */
++#define OCFS2_IXUNLINK_FL FS_IXUNLINK_FL /* Immutable invert on unlink */
++
++#define OCFS2_BARRIER_FL FS_BARRIER_FL /* Barrier for chroot() */
++#define OCFS2_COW_FL FS_COW_FL /* Copy on Write marker */
++
++#define OCFS2_FL_VISIBLE (0x010300FF) /* User visible flags */
++#define OCFS2_FL_MODIFIABLE (0x010300FF) /* User modifiable flags */
+
+ /*
+ * Extent record flags (e_node.leaf.flags)
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/ocfs2.h linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/ocfs2.h
+--- linux-2.6.32.1/fs/ocfs2/ocfs2.h 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/ocfs2.h 2009-12-03 20:04:56.000000000 +0100
+@@ -248,6 +248,7 @@ enum ocfs2_mount_options
+ OCFS2_MOUNT_POSIX_ACL = 1 << 8, /* POSIX access control lists */
+ OCFS2_MOUNT_USRQUOTA = 1 << 9, /* We support user quotas */
+ OCFS2_MOUNT_GRPQUOTA = 1 << 10, /* We support group quotas */
++ OCFS2_MOUNT_TAGGED = 1 << 11, /* use tagging */
+ };
+
+ #define OCFS2_OSB_SOFT_RO 0x0001
+diff -NurpP --minimal linux-2.6.32.1/fs/ocfs2/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/super.c
+--- linux-2.6.32.1/fs/ocfs2/super.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/ocfs2/super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -173,6 +173,7 @@ enum {
+ Opt_noacl,
+ Opt_usrquota,
+ Opt_grpquota,
++ Opt_tag, Opt_notag, Opt_tagid,
+ Opt_err,
+ };
+
+@@ -199,6 +200,9 @@ static const match_table_t tokens = {
+ {Opt_noacl, "noacl"},
+ {Opt_usrquota, "usrquota"},
+ {Opt_grpquota, "grpquota"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL}
+ };
+
+@@ -605,6 +609,13 @@ static int ocfs2_remount(struct super_bl
+ goto out;
+ }
+
++ if ((osb->s_mount_opt & OCFS2_MOUNT_TAGGED) !=
++ (parsed_options.mount_opt & OCFS2_MOUNT_TAGGED)) {
++ ret = -EINVAL;
++ mlog(ML_ERROR, "Cannot change tagging on remount\n");
++ goto out;
++ }
++
+ if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) !=
+ (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) {
+ ret = -EINVAL;
+@@ -1148,6 +1159,9 @@ static int ocfs2_fill_super(struct super
+
+ ocfs2_complete_mount_recovery(osb);
+
++ if (osb->s_mount_opt & OCFS2_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
++
+ if (ocfs2_mount_local(osb))
+ snprintf(nodestr, sizeof(nodestr), "local");
+ else
+@@ -1426,6 +1440,20 @@ static int ocfs2_parse_options(struct su
+ printk(KERN_INFO "ocfs2 (no)acl options not supported\n");
+ break;
+ #endif
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ mopt->mount_opt |= OCFS2_MOUNT_TAGGED;
++ break;
++ case Opt_notag:
++ mopt->mount_opt &= ~OCFS2_MOUNT_TAGGED;
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ mopt->mount_opt |= OCFS2_MOUNT_TAGGED;
++ break;
++#endif
+ default:
+ mlog(ML_ERROR,
+ "Unrecognized mount option \"%s\" "
+diff -NurpP --minimal linux-2.6.32.1/fs/open.c linux-2.6.32.1-vs2.3.0.36.27/fs/open.c
+--- linux-2.6.32.1/fs/open.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/open.c 2009-12-03 20:04:56.000000000 +0100
+@@ -30,22 +30,30 @@
+ #include <linux/audit.h>
+ #include <linux/falloc.h>
+ #include <linux/fs_struct.h>
++#include <linux/vs_base.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_tag.h>
++#include <linux/vs_cowbl.h>
+
+ int vfs_statfs(struct dentry *dentry, struct kstatfs *buf)
+ {
+ int retval = -ENODEV;
+
+ if (dentry) {
++ struct super_block *sb = dentry->d_sb;
++
+ retval = -ENOSYS;
+- if (dentry->d_sb->s_op->statfs) {
++ if (sb->s_op->statfs) {
+ memset(buf, 0, sizeof(*buf));
+ retval = security_sb_statfs(dentry);
+ if (retval)
+ return retval;
+- retval = dentry->d_sb->s_op->statfs(dentry, buf);
++ retval = sb->s_op->statfs(dentry, buf);
+ if (retval == 0 && buf->f_frsize == 0)
+ buf->f_frsize = buf->f_bsize;
+ }
++ if (!vx_check(0, VS_ADMIN|VS_WATCH))
++ vx_vsi_statfs(sb, buf);
+ }
+ return retval;
+ }
+@@ -640,6 +648,10 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, cons
+ error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path);
+ if (error)
+ goto out;
++
++ error = cow_check_and_break(&path);
++ if (error)
++ goto dput_and_out;
+ inode = path.dentry->d_inode;
+
+ error = mnt_want_write(path.mnt);
+@@ -673,11 +685,11 @@ static int chown_common(struct dentry *
+ newattrs.ia_valid = ATTR_CTIME;
+ if (user != (uid_t) -1) {
+ newattrs.ia_valid |= ATTR_UID;
+- newattrs.ia_uid = user;
++ newattrs.ia_uid = dx_map_uid(user);
+ }
+ if (group != (gid_t) -1) {
+ newattrs.ia_valid |= ATTR_GID;
+- newattrs.ia_gid = group;
++ newattrs.ia_gid = dx_map_gid(group);
+ }
+ if (!S_ISDIR(inode->i_mode))
+ newattrs.ia_valid |=
+@@ -700,7 +712,11 @@ SYSCALL_DEFINE3(chown, const char __user
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
+- error = chown_common(path.dentry, user, group);
++#ifdef CONFIG_VSERVER_COWBL
++ error = cow_check_and_break(&path);
++ if (!error)
++#endif
++ error = chown_common(path.dentry, user, group);
+ mnt_drop_write(path.mnt);
+ out_release:
+ path_put(&path);
+@@ -725,7 +741,11 @@ SYSCALL_DEFINE5(fchownat, int, dfd, cons
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
+- error = chown_common(path.dentry, user, group);
++#ifdef CONFIG_VSERVER_COWBL
++ error = cow_check_and_break(&path);
++ if (!error)
++#endif
++ error = chown_common(path.dentry, user, group);
+ mnt_drop_write(path.mnt);
+ out_release:
+ path_put(&path);
+@@ -744,7 +764,11 @@ SYSCALL_DEFINE3(lchown, const char __use
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
+- error = chown_common(path.dentry, user, group);
++#ifdef CONFIG_VSERVER_COWBL
++ error = cow_check_and_break(&path);
++ if (!error)
++#endif
++ error = chown_common(path.dentry, user, group);
+ mnt_drop_write(path.mnt);
+ out_release:
+ path_put(&path);
+@@ -990,6 +1014,7 @@ static void __put_unused_fd(struct files
+ __FD_CLR(fd, fdt->open_fds);
+ if (fd < files->next_fd)
+ files->next_fd = fd;
++ vx_openfd_dec(fd);
+ }
+
+ void put_unused_fd(unsigned int fd)
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/array.c linux-2.6.32.1-vs2.3.0.36.27/fs/proc/array.c
+--- linux-2.6.32.1/fs/proc/array.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/array.c 2009-12-03 20:04:56.000000000 +0100
+@@ -83,6 +83,8 @@
+ #include <linux/ptrace.h>
+ #include <linux/tracehook.h>
+ #include <linux/swapops.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/processor.h>
+@@ -139,8 +141,9 @@ static const char *task_state_array[] =
+ "D (disk sleep)", /* 2 */
+ "T (stopped)", /* 4 */
+ "T (tracing stop)", /* 8 */
+- "Z (zombie)", /* 16 */
+- "X (dead)" /* 32 */
++ "H (on hold)", /* 16 */
++ "Z (zombie)", /* 32 */
++ "X (dead)", /* 64 */
+ };
+
+ static inline const char *get_task_state(struct task_struct *tsk)
+@@ -167,6 +170,9 @@ static inline void task_state(struct seq
+ rcu_read_lock();
+ ppid = pid_alive(p) ?
+ task_tgid_nr_ns(rcu_dereference(p->real_parent), ns) : 0;
++ if (unlikely(vx_current_initpid(p->pid)))
++ ppid = 0;
++
+ tpid = 0;
+ if (pid_alive(p)) {
+ struct task_struct *tracer = tracehook_tracer_task(p);
+@@ -282,7 +288,7 @@ static inline void task_sig(struct seq_f
+ }
+
+ static void render_cap_t(struct seq_file *m, const char *header,
+- kernel_cap_t *a)
++ struct vx_info *vxi, kernel_cap_t *a)
+ {
+ unsigned __capi;
+
+@@ -307,10 +313,11 @@ static inline void task_cap(struct seq_f
+ cap_bset = cred->cap_bset;
+ rcu_read_unlock();
+
+- render_cap_t(m, "CapInh:\t", &cap_inheritable);
+- render_cap_t(m, "CapPrm:\t", &cap_permitted);
+- render_cap_t(m, "CapEff:\t", &cap_effective);
+- render_cap_t(m, "CapBnd:\t", &cap_bset);
++ /* FIXME: maybe move the p->vx_info masking to __task_cred() ? */
++ render_cap_t(m, "CapInh:\t", p->vx_info, &cap_inheritable);
++ render_cap_t(m, "CapPrm:\t", p->vx_info, &cap_permitted);
++ render_cap_t(m, "CapEff:\t", p->vx_info, &cap_effective);
++ render_cap_t(m, "CapBnd:\t", p->vx_info, &cap_bset);
+ }
+
+ static inline void task_context_switch_counts(struct seq_file *m,
+@@ -410,6 +417,42 @@ static void task_show_stack_usage(struct
+ }
+ #endif /* CONFIG_MMU */
+
++int proc_pid_nsproxy(struct seq_file *m, struct pid_namespace *ns,
++ struct pid *pid, struct task_struct *task)
++{
++ seq_printf(m, "Proxy:\t%p(%c)\n"
++ "Count:\t%u\n"
++ "uts:\t%p(%c)\n"
++ "ipc:\t%p(%c)\n"
++ "mnt:\t%p(%c)\n"
++ "pid:\t%p(%c)\n"
++ "net:\t%p(%c)\n",
++ task->nsproxy,
++ (task->nsproxy == init_task.nsproxy ? 'I' : '-'),
++ atomic_read(&task->nsproxy->count),
++ task->nsproxy->uts_ns,
++ (task->nsproxy->uts_ns == init_task.nsproxy->uts_ns ? 'I' : '-'),
++ task->nsproxy->ipc_ns,
++ (task->nsproxy->ipc_ns == init_task.nsproxy->ipc_ns ? 'I' : '-'),
++ task->nsproxy->mnt_ns,
++ (task->nsproxy->mnt_ns == init_task.nsproxy->mnt_ns ? 'I' : '-'),
++ task->nsproxy->pid_ns,
++ (task->nsproxy->pid_ns == init_task.nsproxy->pid_ns ? 'I' : '-'),
++ task->nsproxy->net_ns,
++ (task->nsproxy->net_ns == init_task.nsproxy->net_ns ? 'I' : '-'));
++ return 0;
++}
++
++void task_vs_id(struct seq_file *m, struct task_struct *task)
++{
++ if (task_vx_flags(task, VXF_HIDE_VINFO, 0))
++ return;
++
++ seq_printf(m, "VxID: %d\n", vx_task_xid(task));
++ seq_printf(m, "NxID: %d\n", nx_task_nid(task));
++}
++
++
+ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task)
+ {
+@@ -425,6 +468,7 @@ int proc_pid_status(struct seq_file *m,
+ task_sig(m, task);
+ task_cap(m, task);
+ cpuset_task_status_allowed(m, task);
++ task_vs_id(m, task);
+ #if defined(CONFIG_S390)
+ task_show_regs(m, task);
+ #endif
+@@ -542,6 +586,17 @@ static int do_task_stat(struct seq_file
+ /* convert nsec -> ticks */
+ start_time = nsec_to_clock_t(start_time);
+
++ /* fixup start time for virt uptime */
++ if (vx_flags(VXF_VIRT_UPTIME, 0)) {
++ unsigned long long bias =
++ current->vx_info->cvirt.bias_clock;
++
++ if (start_time > bias)
++ start_time -= bias;
++ else
++ start_time = 0;
++ }
++
+ seq_printf(m, "%d (%s) %c %d %d %d %d %d %u %lu \
+ %lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
+ %lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu %lu %ld\n",
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/base.c linux-2.6.32.1-vs2.3.0.36.27/fs/proc/base.c
+--- linux-2.6.32.1/fs/proc/base.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/base.c 2009-12-03 20:04:56.000000000 +0100
+@@ -81,6 +81,8 @@
+ #include <linux/elf.h>
+ #include <linux/pid_namespace.h>
+ #include <linux/fs_struct.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
+ #include "internal.h"
+
+ /* NOTE:
+@@ -1047,12 +1049,17 @@ static ssize_t oom_adjust_write(struct f
+ return -ESRCH;
+ }
+
+- if (oom_adjust < task->signal->oom_adj && !capable(CAP_SYS_RESOURCE)) {
++ if (oom_adjust < task->signal->oom_adj &&
++ !vx_capable(CAP_SYS_RESOURCE, VXC_OOM_ADJUST)) {
+ unlock_task_sighand(task, &flags);
+ put_task_struct(task);
+ return -EACCES;
+ }
+
++ /* prevent guest processes from circumventing the oom killer */
++ if (vx_current_xid() && (oom_adjust == OOM_DISABLE))
++ oom_adjust = OOM_ADJUST_MIN;
++
+ task->signal->oom_adj = oom_adjust;
+
+ unlock_task_sighand(task, &flags);
+@@ -1092,7 +1099,7 @@ static ssize_t proc_loginuid_write(struc
+ ssize_t length;
+ uid_t loginuid;
+
+- if (!capable(CAP_AUDIT_CONTROL))
++ if (!vx_capable(CAP_AUDIT_CONTROL, VXC_AUDIT_CONTROL))
+ return -EPERM;
+
+ if (current != pid_task(proc_pid(inode), PIDTYPE_PID))
+@@ -1458,6 +1465,8 @@ static struct inode *proc_pid_make_inode
+ inode->i_gid = cred->egid;
+ rcu_read_unlock();
+ }
++ /* procfs is xid tagged */
++ inode->i_tag = (tag_t)vx_task_xid(task);
+ security_task_to_inode(task, inode);
+
+ out:
+@@ -2008,6 +2017,13 @@ static struct dentry *proc_pident_lookup
+ if (!task)
+ goto out_no_task;
+
++ /* TODO: maybe we can come up with a generic approach? */
++ if (task_vx_flags(task, VXF_HIDE_VINFO, 0) &&
++ (dentry->d_name.len == 5) &&
++ (!memcmp(dentry->d_name.name, "vinfo", 5) ||
++ !memcmp(dentry->d_name.name, "ninfo", 5)))
++ goto out;
++
+ /*
+ * Yes, it does not scale. And it should not. Don't add
+ * new entries into /proc/<tgid>/ without very good reasons.
+@@ -2399,7 +2415,7 @@ out_iput:
+ static struct dentry *proc_base_lookup(struct inode *dir, struct dentry *dentry)
+ {
+ struct dentry *error;
+- struct task_struct *task = get_proc_task(dir);
++ struct task_struct *task = get_proc_task_real(dir);
+ const struct pid_entry *p, *last;
+
+ error = ERR_PTR(-ENOENT);
+@@ -2489,6 +2505,9 @@ static int proc_pid_personality(struct s
+ static const struct file_operations proc_task_operations;
+ static const struct inode_operations proc_task_inode_operations;
+
++extern int proc_pid_vx_info(struct task_struct *, char *);
++extern int proc_pid_nx_info(struct task_struct *, char *);
++
+ static const struct pid_entry tgid_base_stuff[] = {
+ DIR("task", S_IRUGO|S_IXUGO, proc_task_inode_operations, proc_task_operations),
+ DIR("fd", S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
+@@ -2547,6 +2566,8 @@ static const struct pid_entry tgid_base_
+ #ifdef CONFIG_CGROUPS
+ REG("cgroup", S_IRUGO, proc_cgroup_operations),
+ #endif
++ INF("vinfo", S_IRUGO, proc_pid_vx_info),
++ INF("ninfo", S_IRUGO, proc_pid_nx_info),
+ INF("oom_score", S_IRUGO, proc_oom_score),
+ REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adjust_operations),
+ #ifdef CONFIG_AUDITSYSCALL
+@@ -2562,6 +2583,7 @@ static const struct pid_entry tgid_base_
+ #ifdef CONFIG_TASK_IO_ACCOUNTING
+ INF("io", S_IRUGO, proc_tgid_io_accounting),
+ #endif
++ ONE("nsproxy", S_IRUGO, proc_pid_nsproxy),
+ };
+
+ static int proc_tgid_base_readdir(struct file * filp,
+@@ -2753,7 +2775,7 @@ retry:
+ iter.task = NULL;
+ pid = find_ge_pid(iter.tgid, ns);
+ if (pid) {
+- iter.tgid = pid_nr_ns(pid, ns);
++ iter.tgid = pid_unmapped_nr_ns(pid, ns);
+ iter.task = pid_task(pid, PIDTYPE_PID);
+ /* What we to know is if the pid we have find is the
+ * pid of a thread_group_leader. Testing for task
+@@ -2783,7 +2805,7 @@ static int proc_pid_fill_cache(struct fi
+ struct tgid_iter iter)
+ {
+ char name[PROC_NUMBUF];
+- int len = snprintf(name, sizeof(name), "%d", iter.tgid);
++ int len = snprintf(name, sizeof(name), "%d", vx_map_tgid(iter.tgid));
+ return proc_fill_cache(filp, dirent, filldir, name, len,
+ proc_pid_instantiate, iter.task, NULL);
+ }
+@@ -2792,7 +2814,7 @@ static int proc_pid_fill_cache(struct fi
+ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
+ {
+ unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
+- struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode);
++ struct task_struct *reaper = get_proc_task_real(filp->f_path.dentry->d_inode);
+ struct tgid_iter iter;
+ struct pid_namespace *ns;
+
+@@ -2812,6 +2834,8 @@ int proc_pid_readdir(struct file * filp,
+ iter.task;
+ iter.tgid += 1, iter = next_tgid(ns, iter)) {
+ filp->f_pos = iter.tgid + TGID_OFFSET;
++ if (!vx_proc_task_visible(iter.task))
++ continue;
+ if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) {
+ put_task_struct(iter.task);
+ goto out;
+@@ -2958,6 +2982,8 @@ static struct dentry *proc_task_lookup(s
+ tid = name_to_int(dentry);
+ if (tid == ~0U)
+ goto out;
++ if (vx_current_initpid(tid))
++ goto out;
+
+ ns = dentry->d_sb->s_fs_info;
+ rcu_read_lock();
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/generic.c linux-2.6.32.1-vs2.3.0.36.27/fs/proc/generic.c
+--- linux-2.6.32.1/fs/proc/generic.c 2009-06-11 17:13:07.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/generic.c 2009-12-03 20:04:56.000000000 +0100
+@@ -20,6 +20,7 @@
+ #include <linux/bitops.h>
+ #include <linux/spinlock.h>
+ #include <linux/completion.h>
++#include <linux/vserver/inode.h>
+ #include <asm/uaccess.h>
+
+ #include "internal.h"
+@@ -425,6 +426,8 @@ struct dentry *proc_lookup_de(struct pro
+ for (de = de->subdir; de ; de = de->next) {
+ if (de->namelen != dentry->d_name.len)
+ continue;
++ if (!vx_hide_check(0, de->vx_flags))
++ continue;
+ if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
+ unsigned int ino;
+
+@@ -433,6 +436,8 @@ struct dentry *proc_lookup_de(struct pro
+ spin_unlock(&proc_subdir_lock);
+ error = -EINVAL;
+ inode = proc_get_inode(dir->i_sb, ino, de);
++ /* generic proc entries belong to the host */
++ inode->i_tag = 0;
+ goto out_unlock;
+ }
+ }
+@@ -510,6 +515,8 @@ int proc_readdir_de(struct proc_dir_entr
+
+ /* filldir passes info to user space */
+ de_get(de);
++ if (!vx_hide_check(0, de->vx_flags))
++ goto skip;
+ spin_unlock(&proc_subdir_lock);
+ if (filldir(dirent, de->name, de->namelen, filp->f_pos,
+ de->low_ino, de->mode >> 12) < 0) {
+@@ -517,6 +524,7 @@ int proc_readdir_de(struct proc_dir_entr
+ goto out;
+ }
+ spin_lock(&proc_subdir_lock);
++ skip:
+ filp->f_pos++;
+ next = de->next;
+ de_put(de);
+@@ -631,6 +639,7 @@ static struct proc_dir_entry *__proc_cre
+ ent->nlink = nlink;
+ atomic_set(&ent->count, 1);
+ ent->pde_users = 0;
++ ent->vx_flags = IATTR_PROC_DEFAULT;
+ spin_lock_init(&ent->pde_unload_lock);
+ ent->pde_unload_completion = NULL;
+ INIT_LIST_HEAD(&ent->pde_openers);
+@@ -654,7 +663,8 @@ struct proc_dir_entry *proc_symlink(cons
+ kfree(ent->data);
+ kfree(ent);
+ ent = NULL;
+- }
++ } else
++ ent->vx_flags = IATTR_PROC_SYMLINK;
+ } else {
+ kfree(ent);
+ ent = NULL;
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/proc/inode.c
+--- linux-2.6.32.1/fs/proc/inode.c 2009-06-11 17:13:07.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -459,6 +459,8 @@ struct inode *proc_get_inode(struct supe
+ inode->i_uid = de->uid;
+ inode->i_gid = de->gid;
+ }
++ if (de->vx_flags)
++ PROC_I(inode)->vx_flags = de->vx_flags;
+ if (de->size)
+ inode->i_size = de->size;
+ if (de->nlink)
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/internal.h linux-2.6.32.1-vs2.3.0.36.27/fs/proc/internal.h
+--- linux-2.6.32.1/fs/proc/internal.h 2009-09-10 15:26:23.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/internal.h 2009-12-03 20:04:56.000000000 +0100
+@@ -10,6 +10,7 @@
+ */
+
+ #include <linux/proc_fs.h>
++#include <linux/vs_pid.h>
+
+ extern struct proc_dir_entry proc_root;
+ #ifdef CONFIG_PROC_SYSCTL
+@@ -51,6 +52,9 @@ extern int proc_pid_status(struct seq_fi
+ struct pid *pid, struct task_struct *task);
+ extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task);
++extern int proc_pid_nsproxy(struct seq_file *m, struct pid_namespace *ns,
++ struct pid *pid, struct task_struct *task);
++
+ extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
+
+ extern const struct file_operations proc_maps_operations;
+@@ -70,11 +74,16 @@ static inline struct pid *proc_pid(struc
+ return PROC_I(inode)->pid;
+ }
+
+-static inline struct task_struct *get_proc_task(struct inode *inode)
++static inline struct task_struct *get_proc_task_real(struct inode *inode)
+ {
+ return get_pid_task(proc_pid(inode), PIDTYPE_PID);
+ }
+
++static inline struct task_struct *get_proc_task(struct inode *inode)
++{
++ return vx_get_proc_task(inode, proc_pid(inode));
++}
++
+ static inline int proc_fd(struct inode *inode)
+ {
+ return PROC_I(inode)->fd;
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/loadavg.c linux-2.6.32.1-vs2.3.0.36.27/fs/proc/loadavg.c
+--- linux-2.6.32.1/fs/proc/loadavg.c 2009-09-10 15:26:23.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/loadavg.c 2009-12-03 20:04:56.000000000 +0100
+@@ -12,15 +12,27 @@
+
+ static int loadavg_proc_show(struct seq_file *m, void *v)
+ {
++ unsigned long running;
++ unsigned int threads;
+ unsigned long avnrun[3];
+
+ get_avenrun(avnrun, FIXED_1/200, 0);
+
++ if (vx_flags(VXF_VIRT_LOAD, 0)) {
++ struct vx_info *vxi = current_vx_info();
++
++ running = atomic_read(&vxi->cvirt.nr_running);
++ threads = atomic_read(&vxi->cvirt.nr_threads);
++ } else {
++ running = nr_running();
++ threads = nr_threads;
++ }
++
+ seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %ld/%d %d\n",
+ LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]),
+ LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]),
+ LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]),
+- nr_running(), nr_threads,
++ running, threads,
+ task_active_pid_ns(current)->last_pid);
+ return 0;
+ }
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/meminfo.c linux-2.6.32.1-vs2.3.0.36.27/fs/proc/meminfo.c
+--- linux-2.6.32.1/fs/proc/meminfo.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/meminfo.c 2009-12-03 20:04:56.000000000 +0100
+@@ -41,7 +41,7 @@ static int meminfo_proc_show(struct seq_
+
+ cached = global_page_state(NR_FILE_PAGES) -
+ total_swapcache_pages - i.bufferram;
+- if (cached < 0)
++ if (cached < 0 || vx_flags(VXF_VIRT_MEM, 0))
+ cached = 0;
+
+ get_vmalloc_info(&vmi);
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/root.c linux-2.6.32.1-vs2.3.0.36.27/fs/proc/root.c
+--- linux-2.6.32.1/fs/proc/root.c 2009-06-11 17:13:07.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/root.c 2009-12-03 20:04:56.000000000 +0100
+@@ -18,9 +18,14 @@
+ #include <linux/bitops.h>
+ #include <linux/mount.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vserver/inode.h>
+
+ #include "internal.h"
+
++struct proc_dir_entry *proc_virtual;
++
++extern void proc_vx_init(void);
++
+ static int proc_test_super(struct super_block *sb, void *data)
+ {
+ return sb->s_fs_info == data;
+@@ -136,6 +141,7 @@ void __init proc_root_init(void)
+ #endif
+ proc_mkdir("bus", NULL);
+ proc_sys_init();
++ proc_vx_init();
+ }
+
+ static int proc_root_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat
+@@ -203,6 +209,7 @@ struct proc_dir_entry proc_root = {
+ .proc_iops = &proc_root_inode_operations,
+ .proc_fops = &proc_root_operations,
+ .parent = &proc_root,
++ .vx_flags = IATTR_ADMIN | IATTR_WATCH,
+ };
+
+ int pid_ns_prepare_proc(struct pid_namespace *ns)
+diff -NurpP --minimal linux-2.6.32.1/fs/proc/uptime.c linux-2.6.32.1-vs2.3.0.36.27/fs/proc/uptime.c
+--- linux-2.6.32.1/fs/proc/uptime.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/proc/uptime.c 2009-12-03 20:04:56.000000000 +0100
+@@ -4,22 +4,22 @@
+ #include <linux/sched.h>
+ #include <linux/seq_file.h>
+ #include <linux/time.h>
+-#include <linux/kernel_stat.h>
++#include <linux/vserver/cvirt.h>
+ #include <asm/cputime.h>
+
+ static int uptime_proc_show(struct seq_file *m, void *v)
+ {
+ struct timespec uptime;
+ struct timespec idle;
+- int i;
+- cputime_t idletime = cputime_zero;
+-
+- for_each_possible_cpu(i)
+- idletime = cputime64_add(idletime, kstat_cpu(i).cpustat.idle);
++ cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
+
+ do_posix_clock_monotonic_gettime(&uptime);
+ monotonic_to_bootbased(&uptime);
+ cputime_to_timespec(idletime, &idle);
++
++ if (vx_flags(VXF_VIRT_UPTIME, 0))
++ vx_vsi_uptime(&uptime, &idle);
++
+ seq_printf(m, "%lu.%02lu %lu.%02lu\n",
+ (unsigned long) uptime.tv_sec,
+ (uptime.tv_nsec / (NSEC_PER_SEC / 100)),
+diff -NurpP --minimal linux-2.6.32.1/fs/quota/quota.c linux-2.6.32.1-vs2.3.0.36.27/fs/quota/quota.c
+--- linux-2.6.32.1/fs/quota/quota.c 2009-09-10 15:26:24.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/quota/quota.c 2009-12-03 20:04:56.000000000 +0100
+@@ -18,6 +18,7 @@
+ #include <linux/capability.h>
+ #include <linux/quotaops.h>
+ #include <linux/types.h>
++#include <linux/vs_context.h>
+
+ /* Check validity of generic quotactl commands */
+ static int generic_quotactl_valid(struct super_block *sb, int type, int cmd,
+@@ -83,11 +84,11 @@ static int generic_quotactl_valid(struct
+ if (cmd == Q_GETQUOTA) {
+ if (((type == USRQUOTA && current_euid() != id) ||
+ (type == GRPQUOTA && !in_egroup_p(id))) &&
+- !capable(CAP_SYS_ADMIN))
++ !vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
+ return -EPERM;
+ }
+ else if (cmd != Q_GETFMT && cmd != Q_SYNC && cmd != Q_GETINFO)
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
+ return -EPERM;
+
+ return 0;
+@@ -135,10 +136,10 @@ static int xqm_quotactl_valid(struct sup
+ if (cmd == Q_XGETQUOTA) {
+ if (((type == XQM_USRQUOTA && current_euid() != id) ||
+ (type == XQM_GRPQUOTA && !in_egroup_p(id))) &&
+- !capable(CAP_SYS_ADMIN))
++ !vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
+ return -EPERM;
+ } else if (cmd != Q_XGETQSTAT && cmd != Q_XQUOTASYNC) {
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
+ return -EPERM;
+ }
+
+@@ -351,6 +352,46 @@ static int do_quotactl(struct super_bloc
+ return 0;
+ }
+
++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE)
++
++#include <linux/vroot.h>
++#include <linux/major.h>
++#include <linux/module.h>
++#include <linux/kallsyms.h>
++#include <linux/vserver/debug.h>
++
++static vroot_grb_func *vroot_get_real_bdev = NULL;
++
++static spinlock_t vroot_grb_lock = SPIN_LOCK_UNLOCKED;
++
++int register_vroot_grb(vroot_grb_func *func) {
++ int ret = -EBUSY;
++
++ spin_lock(&vroot_grb_lock);
++ if (!vroot_get_real_bdev) {
++ vroot_get_real_bdev = func;
++ ret = 0;
++ }
++ spin_unlock(&vroot_grb_lock);
++ return ret;
++}
++EXPORT_SYMBOL(register_vroot_grb);
++
++int unregister_vroot_grb(vroot_grb_func *func) {
++ int ret = -EINVAL;
++
++ spin_lock(&vroot_grb_lock);
++ if (vroot_get_real_bdev) {
++ vroot_get_real_bdev = NULL;
++ ret = 0;
++ }
++ spin_unlock(&vroot_grb_lock);
++ return ret;
++}
++EXPORT_SYMBOL(unregister_vroot_grb);
++
++#endif
++
+ /*
+ * look up a superblock on which quota ops will be performed
+ * - use the name of a block device to find the superblock thereon
+@@ -368,6 +409,22 @@ static struct super_block *quotactl_bloc
+ putname(tmp);
+ if (IS_ERR(bdev))
+ return ERR_CAST(bdev);
++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE)
++ if (bdev && bdev->bd_inode &&
++ imajor(bdev->bd_inode) == VROOT_MAJOR) {
++ struct block_device *bdnew = (void *)-EINVAL;
++
++ if (vroot_get_real_bdev)
++ bdnew = vroot_get_real_bdev(bdev);
++ else
++ vxdprintk(VXD_CBIT(misc, 0),
++ "vroot_get_real_bdev not set");
++ bdput(bdev);
++ if (IS_ERR(bdnew))
++ return ERR_PTR(PTR_ERR(bdnew));
++ bdev = bdnew;
++ }
++#endif
+ sb = get_super(bdev);
+ bdput(bdev);
+ if (!sb)
+diff -NurpP --minimal linux-2.6.32.1/fs/reiserfs/file.c linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/file.c
+--- linux-2.6.32.1/fs/reiserfs/file.c 2009-06-11 17:13:08.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/file.c 2009-12-03 20:04:56.000000000 +0100
+@@ -307,4 +307,5 @@ const struct inode_operations reiserfs_f
+ .listxattr = reiserfs_listxattr,
+ .removexattr = reiserfs_removexattr,
+ .permission = reiserfs_permission,
++ .sync_flags = reiserfs_sync_flags,
+ };
+diff -NurpP --minimal linux-2.6.32.1/fs/reiserfs/inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/inode.c
+--- linux-2.6.32.1/fs/reiserfs/inode.c 2009-09-10 15:26:24.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -18,6 +18,7 @@
+ #include <linux/writeback.h>
+ #include <linux/quotaops.h>
+ #include <linux/swap.h>
++#include <linux/vs_tag.h>
+
+ int reiserfs_commit_write(struct file *f, struct page *page,
+ unsigned from, unsigned to);
+@@ -1117,6 +1118,8 @@ static void init_inode(struct inode *ino
+ struct buffer_head *bh;
+ struct item_head *ih;
+ __u32 rdev;
++ uid_t uid;
++ gid_t gid;
+ //int version = ITEM_VERSION_1;
+
+ bh = PATH_PLAST_BUFFER(path);
+@@ -1138,12 +1141,13 @@ static void init_inode(struct inode *ino
+ (struct stat_data_v1 *)B_I_PITEM(bh, ih);
+ unsigned long blocks;
+
++ uid = sd_v1_uid(sd);
++ gid = sd_v1_gid(sd);
++
+ set_inode_item_key_version(inode, KEY_FORMAT_3_5);
+ set_inode_sd_version(inode, STAT_DATA_V1);
+ inode->i_mode = sd_v1_mode(sd);
+ inode->i_nlink = sd_v1_nlink(sd);
+- inode->i_uid = sd_v1_uid(sd);
+- inode->i_gid = sd_v1_gid(sd);
+ inode->i_size = sd_v1_size(sd);
+ inode->i_atime.tv_sec = sd_v1_atime(sd);
+ inode->i_mtime.tv_sec = sd_v1_mtime(sd);
+@@ -1185,11 +1189,12 @@ static void init_inode(struct inode *ino
+ // (directories and symlinks)
+ struct stat_data *sd = (struct stat_data *)B_I_PITEM(bh, ih);
+
++ uid = sd_v2_uid(sd);
++ gid = sd_v2_gid(sd);
++
+ inode->i_mode = sd_v2_mode(sd);
+ inode->i_nlink = sd_v2_nlink(sd);
+- inode->i_uid = sd_v2_uid(sd);
+ inode->i_size = sd_v2_size(sd);
+- inode->i_gid = sd_v2_gid(sd);
+ inode->i_mtime.tv_sec = sd_v2_mtime(sd);
+ inode->i_atime.tv_sec = sd_v2_atime(sd);
+ inode->i_ctime.tv_sec = sd_v2_ctime(sd);
+@@ -1219,6 +1224,10 @@ static void init_inode(struct inode *ino
+ sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode);
+ }
+
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, 0);
++
+ pathrelse(path);
+ if (S_ISREG(inode->i_mode)) {
+ inode->i_op = &reiserfs_file_inode_operations;
+@@ -1241,13 +1250,15 @@ static void init_inode(struct inode *ino
+ static void inode2sd(void *sd, struct inode *inode, loff_t size)
+ {
+ struct stat_data *sd_v2 = (struct stat_data *)sd;
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
+ __u16 flags;
+
++ set_sd_v2_uid(sd_v2, uid);
++ set_sd_v2_gid(sd_v2, gid);
+ set_sd_v2_mode(sd_v2, inode->i_mode);
+ set_sd_v2_nlink(sd_v2, inode->i_nlink);
+- set_sd_v2_uid(sd_v2, inode->i_uid);
+ set_sd_v2_size(sd_v2, size);
+- set_sd_v2_gid(sd_v2, inode->i_gid);
+ set_sd_v2_mtime(sd_v2, inode->i_mtime.tv_sec);
+ set_sd_v2_atime(sd_v2, inode->i_atime.tv_sec);
+ set_sd_v2_ctime(sd_v2, inode->i_ctime.tv_sec);
+@@ -2828,14 +2839,19 @@ int reiserfs_commit_write(struct file *f
+ void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode)
+ {
+ if (reiserfs_attrs(inode->i_sb)) {
+- if (sd_attrs & REISERFS_SYNC_FL)
+- inode->i_flags |= S_SYNC;
+- else
+- inode->i_flags &= ~S_SYNC;
+ if (sd_attrs & REISERFS_IMMUTABLE_FL)
+ inode->i_flags |= S_IMMUTABLE;
+ else
+ inode->i_flags &= ~S_IMMUTABLE;
++ if (sd_attrs & REISERFS_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++ else
++ inode->i_flags &= ~S_IXUNLINK;
++
++ if (sd_attrs & REISERFS_SYNC_FL)
++ inode->i_flags |= S_SYNC;
++ else
++ inode->i_flags &= ~S_SYNC;
+ if (sd_attrs & REISERFS_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+ else
+@@ -2848,6 +2864,15 @@ void sd_attrs_to_i_attrs(__u16 sd_attrs,
+ REISERFS_I(inode)->i_flags |= i_nopack_mask;
+ else
+ REISERFS_I(inode)->i_flags &= ~i_nopack_mask;
++
++ if (sd_attrs & REISERFS_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ else
++ inode->i_vflags &= ~V_BARRIER;
++ if (sd_attrs & REISERFS_COW_FL)
++ inode->i_vflags |= V_COW;
++ else
++ inode->i_vflags &= ~V_COW;
+ }
+ }
+
+@@ -2858,6 +2883,11 @@ void i_attrs_to_sd_attrs(struct inode *i
+ *sd_attrs |= REISERFS_IMMUTABLE_FL;
+ else
+ *sd_attrs &= ~REISERFS_IMMUTABLE_FL;
++ if (inode->i_flags & S_IXUNLINK)
++ *sd_attrs |= REISERFS_IXUNLINK_FL;
++ else
++ *sd_attrs &= ~REISERFS_IXUNLINK_FL;
++
+ if (inode->i_flags & S_SYNC)
+ *sd_attrs |= REISERFS_SYNC_FL;
+ else
+@@ -2870,6 +2900,15 @@ void i_attrs_to_sd_attrs(struct inode *i
+ *sd_attrs |= REISERFS_NOTAIL_FL;
+ else
+ *sd_attrs &= ~REISERFS_NOTAIL_FL;
++
++ if (inode->i_vflags & V_BARRIER)
++ *sd_attrs |= REISERFS_BARRIER_FL;
++ else
++ *sd_attrs &= ~REISERFS_BARRIER_FL;
++ if (inode->i_vflags & V_COW)
++ *sd_attrs |= REISERFS_COW_FL;
++ else
++ *sd_attrs &= ~REISERFS_COW_FL;
+ }
+ }
+
+@@ -3090,9 +3129,11 @@ int reiserfs_setattr(struct dentry *dent
+ }
+
+ error = inode_change_ok(inode, attr);
++
+ if (!error) {
+ if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
+ error = reiserfs_chown_xattrs(inode, attr);
+
+ if (!error) {
+@@ -3122,6 +3163,9 @@ int reiserfs_setattr(struct dentry *dent
+ inode->i_uid = attr->ia_uid;
+ if (attr->ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
++ if ((attr->ia_valid & ATTR_TAG) &&
++ IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ mark_inode_dirty(inode);
+ error =
+ journal_end(&th, inode->i_sb, jbegin_count);
+diff -NurpP --minimal linux-2.6.32.1/fs/reiserfs/ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/ioctl.c
+--- linux-2.6.32.1/fs/reiserfs/ioctl.c 2009-06-11 17:13:08.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -7,11 +7,27 @@
+ #include <linux/mount.h>
+ #include <linux/reiserfs_fs.h>
+ #include <linux/time.h>
++#include <linux/mount.h>
+ #include <asm/uaccess.h>
+ #include <linux/pagemap.h>
+ #include <linux/smp_lock.h>
+ #include <linux/compat.h>
+
++
++int reiserfs_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ __u16 sd_attrs = 0;
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++
++ i_attrs_to_sd_attrs(inode, &sd_attrs);
++ REISERFS_I(inode)->i_attrs = sd_attrs;
++ inode->i_ctime = CURRENT_TIME_SEC;
++ mark_inode_dirty(inode);
++ return 0;
++}
++
+ /*
+ ** reiserfs_ioctl - handler for ioctl for inode
+ ** supported commands:
+@@ -23,7 +39,7 @@
+ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
+ unsigned long arg)
+ {
+- unsigned int flags;
++ unsigned int flags, oldflags;
+ int err = 0;
+
+ switch (cmd) {
+@@ -43,6 +59,7 @@ int reiserfs_ioctl(struct inode *inode,
+
+ flags = REISERFS_I(inode)->i_attrs;
+ i_attrs_to_sd_attrs(inode, (__u16 *) & flags);
++ flags &= REISERFS_FL_USER_VISIBLE;
+ return put_user(flags, (int __user *)arg);
+ case REISERFS_IOC_SETFLAGS:{
+ if (!reiserfs_attrs(inode->i_sb))
+@@ -60,6 +77,10 @@ int reiserfs_ioctl(struct inode *inode,
+ err = -EFAULT;
+ goto setflags_out;
+ }
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
+ /*
+ * Is it quota file? Do not allow user to mess with it
+ */
+@@ -84,6 +105,10 @@ int reiserfs_ioctl(struct inode *inode,
+ goto setflags_out;
+ }
+ }
++
++ oldflags = REISERFS_I(inode)->i_attrs;
++ flags &= REISERFS_FL_USER_MODIFIABLE;
++ flags |= oldflags & ~REISERFS_FL_USER_MODIFIABLE;
+ sd_attrs_to_i_attrs(flags, inode);
+ REISERFS_I(inode)->i_attrs = flags;
+ inode->i_ctime = CURRENT_TIME_SEC;
+diff -NurpP --minimal linux-2.6.32.1/fs/reiserfs/namei.c linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/namei.c
+--- linux-2.6.32.1/fs/reiserfs/namei.c 2009-06-11 17:13:08.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/namei.c 2009-12-03 20:04:56.000000000 +0100
+@@ -17,6 +17,7 @@
+ #include <linux/reiserfs_acl.h>
+ #include <linux/reiserfs_xattr.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+
+ #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
+ #define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) drop_nlink(i);
+@@ -354,6 +355,7 @@ static struct dentry *reiserfs_lookup(st
+ if (retval == IO_ERROR) {
+ return ERR_PTR(-EIO);
+ }
++ dx_propagate_tag(nd, inode);
+
+ return d_splice_alias(inode, dentry);
+ }
+@@ -570,6 +572,7 @@ static int new_inode_init(struct inode *
+ } else {
+ inode->i_gid = current_fsgid();
+ }
++ inode->i_tag = dx_current_fstag(inode->i_sb);
+ vfs_dq_init(inode);
+ return 0;
+ }
+@@ -1515,6 +1518,7 @@ const struct inode_operations reiserfs_d
+ .listxattr = reiserfs_listxattr,
+ .removexattr = reiserfs_removexattr,
+ .permission = reiserfs_permission,
++ .sync_flags = reiserfs_sync_flags,
+ };
+
+ /*
+diff -NurpP --minimal linux-2.6.32.1/fs/reiserfs/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/super.c
+--- linux-2.6.32.1/fs/reiserfs/super.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -884,6 +884,14 @@ static int reiserfs_parse_options(struct
+ {"user_xattr",.setmask = 1 << REISERFS_UNSUPPORTED_OPT},
+ {"nouser_xattr",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT},
+ #endif
++#ifndef CONFIG_TAGGING_NONE
++ {"tagxid",.setmask = 1 << REISERFS_TAGGED},
++ {"tag",.setmask = 1 << REISERFS_TAGGED},
++ {"notag",.clrmask = 1 << REISERFS_TAGGED},
++#endif
++#ifdef CONFIG_PROPAGATE
++ {"tag",.arg_required = 'T',.values = NULL},
++#endif
+ #ifdef CONFIG_REISERFS_FS_POSIX_ACL
+ {"acl",.setmask = 1 << REISERFS_POSIXACL},
+ {"noacl",.clrmask = 1 << REISERFS_POSIXACL},
+@@ -1190,6 +1198,14 @@ static int reiserfs_remount(struct super
+ handle_quota_files(s, qf_names, &qfmt);
+ #endif
+
++ if ((mount_options & (1 << REISERFS_TAGGED)) &&
++ !(s->s_flags & MS_TAGGED)) {
++ reiserfs_warning(s, "super-vs01",
++ "reiserfs: tagging not permitted on remount.");
++ err = -EINVAL;
++ goto out_err;
++ }
++
+ handle_attrs(s);
+
+ /* Add options that are safe here */
+@@ -1652,6 +1668,10 @@ static int reiserfs_fill_super(struct su
+ goto error;
+ }
+
++ /* map mount option tagxid */
++ if (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_TAGGED))
++ s->s_flags |= MS_TAGGED;
++
+ rs = SB_DISK_SUPER_BLOCK(s);
+ /* Let's do basic sanity check to verify that underlying device is not
+ smaller than the filesystem. If the check fails then abort and scream,
+diff -NurpP --minimal linux-2.6.32.1/fs/reiserfs/xattr.c linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/xattr.c
+--- linux-2.6.32.1/fs/reiserfs/xattr.c 2009-09-10 15:26:24.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/reiserfs/xattr.c 2009-12-03 20:04:56.000000000 +0100
+@@ -39,6 +39,7 @@
+ #include <linux/namei.h>
+ #include <linux/errno.h>
+ #include <linux/fs.h>
++#include <linux/mount.h>
+ #include <linux/file.h>
+ #include <linux/pagemap.h>
+ #include <linux/xattr.h>
+diff -NurpP --minimal linux-2.6.32.1/fs/stat.c linux-2.6.32.1-vs2.3.0.36.27/fs/stat.c
+--- linux-2.6.32.1/fs/stat.c 2009-06-11 17:13:08.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/stat.c 2009-12-03 20:04:56.000000000 +0100
+@@ -26,6 +26,7 @@ void generic_fillattr(struct inode *inod
+ stat->nlink = inode->i_nlink;
+ stat->uid = inode->i_uid;
+ stat->gid = inode->i_gid;
++ stat->tag = inode->i_tag;
+ stat->rdev = inode->i_rdev;
+ stat->atime = inode->i_atime;
+ stat->mtime = inode->i_mtime;
+diff -NurpP --minimal linux-2.6.32.1/fs/super.c linux-2.6.32.1-vs2.3.0.36.27/fs/super.c
+--- linux-2.6.32.1/fs/super.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -37,6 +37,9 @@
+ #include <linux/kobject.h>
+ #include <linux/mutex.h>
+ #include <linux/file.h>
++#include <linux/devpts_fs.h>
++#include <linux/proc_fs.h>
++#include <linux/vs_context.h>
+ #include <asm/uaccess.h>
+ #include "internal.h"
+
+@@ -913,12 +916,18 @@ struct vfsmount *
+ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void *data)
+ {
+ struct vfsmount *mnt;
++ struct super_block *sb;
+ char *secdata = NULL;
+ int error;
+
+ if (!type)
+ return ERR_PTR(-ENODEV);
+
++ error = -EPERM;
++ if ((type->fs_flags & FS_BINARY_MOUNTDATA) &&
++ !vx_capable(CAP_SYS_ADMIN, VXC_BINARY_MOUNT))
++ goto out;
++
+ error = -ENOMEM;
+ mnt = alloc_vfsmnt(name);
+ if (!mnt)
+@@ -937,9 +946,17 @@ vfs_kern_mount(struct file_system_type *
+ error = type->get_sb(type, flags, name, data, mnt);
+ if (error < 0)
+ goto out_free_secdata;
+- BUG_ON(!mnt->mnt_sb);
+
+- error = security_sb_kern_mount(mnt->mnt_sb, flags, secdata);
++ sb = mnt->mnt_sb;
++ BUG_ON(!sb);
++
++ error = -EPERM;
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_BINARY_MOUNT) && !sb->s_bdev &&
++ (sb->s_magic != PROC_SUPER_MAGIC) &&
++ (sb->s_magic != DEVPTS_SUPER_MAGIC))
++ goto out_sb;
++
++ error = security_sb_kern_mount(sb, flags, secdata);
+ if (error)
+ goto out_sb;
+
+diff -NurpP --minimal linux-2.6.32.1/fs/sysfs/mount.c linux-2.6.32.1-vs2.3.0.36.27/fs/sysfs/mount.c
+--- linux-2.6.32.1/fs/sysfs/mount.c 2009-06-11 17:13:08.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/sysfs/mount.c 2009-12-03 20:04:56.000000000 +0100
+@@ -47,7 +47,7 @@ static int sysfs_fill_super(struct super
+
+ sb->s_blocksize = PAGE_CACHE_SIZE;
+ sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+- sb->s_magic = SYSFS_MAGIC;
++ sb->s_magic = SYSFS_SUPER_MAGIC;
+ sb->s_op = &sysfs_ops;
+ sb->s_time_gran = 1;
+ sysfs_sb = sb;
+diff -NurpP --minimal linux-2.6.32.1/fs/utimes.c linux-2.6.32.1-vs2.3.0.36.27/fs/utimes.c
+--- linux-2.6.32.1/fs/utimes.c 2009-03-24 14:22:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/utimes.c 2009-12-03 20:04:56.000000000 +0100
+@@ -8,6 +8,8 @@
+ #include <linux/stat.h>
+ #include <linux/utime.h>
+ #include <linux/syscalls.h>
++#include <linux/mount.h>
++#include <linux/vs_cowbl.h>
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+
+diff -NurpP --minimal linux-2.6.32.1/fs/xattr.c linux-2.6.32.1-vs2.3.0.36.27/fs/xattr.c
+--- linux-2.6.32.1/fs/xattr.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xattr.c 2009-12-03 20:04:56.000000000 +0100
+@@ -18,6 +18,7 @@
+ #include <linux/module.h>
+ #include <linux/fsnotify.h>
+ #include <linux/audit.h>
++#include <linux/mount.h>
+ #include <asm/uaccess.h>
+
+
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/linux-2.6/xfs_ioctl.c linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_ioctl.c
+--- linux-2.6.32.1/fs/xfs/linux-2.6/xfs_ioctl.c 2009-09-10 15:26:24.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_ioctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -34,7 +34,6 @@
+ #include "xfs_dir2_sf.h"
+ #include "xfs_dinode.h"
+ #include "xfs_inode.h"
+-#include "xfs_ioctl.h"
+ #include "xfs_btree.h"
+ #include "xfs_ialloc.h"
+ #include "xfs_rtalloc.h"
+@@ -742,6 +741,10 @@ xfs_merge_ioc_xflags(
+ xflags |= XFS_XFLAG_IMMUTABLE;
+ else
+ xflags &= ~XFS_XFLAG_IMMUTABLE;
++ if (flags & FS_IXUNLINK_FL)
++ xflags |= XFS_XFLAG_IXUNLINK;
++ else
++ xflags &= ~XFS_XFLAG_IXUNLINK;
+ if (flags & FS_APPEND_FL)
+ xflags |= XFS_XFLAG_APPEND;
+ else
+@@ -770,6 +773,8 @@ xfs_di2lxflags(
+
+ if (di_flags & XFS_DIFLAG_IMMUTABLE)
+ flags |= FS_IMMUTABLE_FL;
++ if (di_flags & XFS_DIFLAG_IXUNLINK)
++ flags |= FS_IXUNLINK_FL;
+ if (di_flags & XFS_DIFLAG_APPEND)
+ flags |= FS_APPEND_FL;
+ if (di_flags & XFS_DIFLAG_SYNC)
+@@ -828,6 +833,8 @@ xfs_set_diflags(
+ di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
+ if (xflags & XFS_XFLAG_IMMUTABLE)
+ di_flags |= XFS_DIFLAG_IMMUTABLE;
++ if (xflags & XFS_XFLAG_IXUNLINK)
++ di_flags |= XFS_DIFLAG_IXUNLINK;
+ if (xflags & XFS_XFLAG_APPEND)
+ di_flags |= XFS_DIFLAG_APPEND;
+ if (xflags & XFS_XFLAG_SYNC)
+@@ -870,6 +877,10 @@ xfs_diflags_to_linux(
+ inode->i_flags |= S_IMMUTABLE;
+ else
+ inode->i_flags &= ~S_IMMUTABLE;
++ if (xflags & XFS_XFLAG_IXUNLINK)
++ inode->i_flags |= S_IXUNLINK;
++ else
++ inode->i_flags &= ~S_IXUNLINK;
+ if (xflags & XFS_XFLAG_APPEND)
+ inode->i_flags |= S_APPEND;
+ else
+@@ -1346,10 +1357,18 @@ xfs_file_ioctl(
+ case XFS_IOC_FSGETXATTRA:
+ return xfs_ioc_fsgetxattr(ip, 1, arg);
+ case XFS_IOC_FSSETXATTR:
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -XFS_ERROR(EACCES);
++ }
+ return xfs_ioc_fssetxattr(ip, filp, arg);
+ case XFS_IOC_GETXFLAGS:
+ return xfs_ioc_getxflags(ip, arg);
+ case XFS_IOC_SETXFLAGS:
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -XFS_ERROR(EACCES);
++ }
+ return xfs_ioc_setxflags(ip, filp, arg);
+
+ case XFS_IOC_FSSETDM: {
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/linux-2.6/xfs_ioctl.h linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_ioctl.h
+--- linux-2.6.32.1/fs/xfs/linux-2.6/xfs_ioctl.h 2009-03-24 14:22:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_ioctl.h 2009-12-03 20:04:56.000000000 +0100
+@@ -70,6 +70,12 @@ xfs_handle_to_dentry(
+ void __user *uhandle,
+ u32 hlen);
+
++extern int
++xfs_sync_flags(
++ struct inode *inode,
++ int flags,
++ int vflags);
++
+ extern long
+ xfs_file_ioctl(
+ struct file *filp,
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/linux-2.6/xfs_iops.c linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_iops.c
+--- linux-2.6.32.1/fs/xfs/linux-2.6/xfs_iops.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_iops.c 2009-12-03 20:04:56.000000000 +0100
+@@ -36,6 +36,7 @@
+ #include "xfs_attr_sf.h"
+ #include "xfs_dinode.h"
+ #include "xfs_inode.h"
++#include "xfs_ioctl.h"
+ #include "xfs_bmap.h"
+ #include "xfs_btree.h"
+ #include "xfs_ialloc.h"
+@@ -55,6 +56,7 @@
+ #include <linux/security.h>
+ #include <linux/falloc.h>
+ #include <linux/fiemap.h>
++#include <linux/vs_tag.h>
+
+ /*
+ * Bring the timestamps in the XFS inode uptodate.
+@@ -495,6 +497,7 @@ xfs_vn_getattr(
+ stat->nlink = ip->i_d.di_nlink;
+ stat->uid = ip->i_d.di_uid;
+ stat->gid = ip->i_d.di_gid;
++ stat->tag = ip->i_d.di_tag;
+ stat->ino = ip->i_ino;
+ stat->atime = inode->i_atime;
+ stat->mtime = inode->i_mtime;
+@@ -686,6 +689,7 @@ static const struct inode_operations xfs
+ .listxattr = xfs_vn_listxattr,
+ .fallocate = xfs_vn_fallocate,
+ .fiemap = xfs_vn_fiemap,
++ .sync_flags = xfs_sync_flags,
+ };
+
+ static const struct inode_operations xfs_dir_inode_operations = {
+@@ -711,6 +715,7 @@ static const struct inode_operations xfs
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
+ .listxattr = xfs_vn_listxattr,
++ .sync_flags = xfs_sync_flags,
+ };
+
+ static const struct inode_operations xfs_dir_ci_inode_operations = {
+@@ -760,6 +765,10 @@ xfs_diflags_to_iflags(
+ inode->i_flags |= S_IMMUTABLE;
+ else
+ inode->i_flags &= ~S_IMMUTABLE;
++ if (ip->i_d.di_flags & XFS_DIFLAG_IXUNLINK)
++ inode->i_flags |= S_IXUNLINK;
++ else
++ inode->i_flags &= ~S_IXUNLINK;
+ if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
+ inode->i_flags |= S_APPEND;
+ else
+@@ -772,6 +781,15 @@ xfs_diflags_to_iflags(
+ inode->i_flags |= S_NOATIME;
+ else
+ inode->i_flags &= ~S_NOATIME;
++
++ if (ip->i_d.di_vflags & XFS_DIVFLAG_BARRIER)
++ inode->i_vflags |= V_BARRIER;
++ else
++ inode->i_vflags &= ~V_BARRIER;
++ if (ip->i_d.di_vflags & XFS_DIVFLAG_COW)
++ inode->i_vflags |= V_COW;
++ else
++ inode->i_vflags &= ~V_COW;
+ }
+
+ /*
+@@ -800,6 +818,7 @@ xfs_setup_inode(
+ inode->i_nlink = ip->i_d.di_nlink;
+ inode->i_uid = ip->i_d.di_uid;
+ inode->i_gid = ip->i_d.di_gid;
++ inode->i_tag = ip->i_d.di_tag;
+
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFBLK:
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/linux-2.6/xfs_linux.h linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_linux.h
+--- linux-2.6.32.1/fs/xfs/linux-2.6/xfs_linux.h 2009-09-10 15:26:24.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_linux.h 2009-12-03 20:04:56.000000000 +0100
+@@ -119,6 +119,7 @@
+
+ #define current_cpu() (raw_smp_processor_id())
+ #define current_pid() (current->pid)
++#define current_fstag(cred,vp) (dx_current_fstag((vp)->i_sb))
+ #define current_test_flags(f) (current->flags & (f))
+ #define current_set_flags_nested(sp, f) \
+ (*(sp) = current->flags, current->flags |= (f))
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/linux-2.6/xfs_super.c linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_super.c
+--- linux-2.6.32.1/fs/xfs/linux-2.6/xfs_super.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/linux-2.6/xfs_super.c 2009-12-03 20:04:56.000000000 +0100
+@@ -117,6 +117,9 @@ mempool_t *xfs_ioend_pool;
+ #define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */
+ #define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */
+ #define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */
++#define MNTOPT_TAGXID "tagxid" /* context tagging for inodes */
++#define MNTOPT_TAGGED "tag" /* context tagging for inodes */
++#define MNTOPT_NOTAGTAG "notag" /* do not use context tagging */
+
+ /*
+ * Table driven mount option parser.
+@@ -125,10 +128,14 @@ mempool_t *xfs_ioend_pool;
+ * in the future, too.
+ */
+ enum {
++ Opt_tag, Opt_notag,
+ Opt_barrier, Opt_nobarrier, Opt_err
+ };
+
+ static const match_table_t tokens = {
++ {Opt_tag, "tagxid"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
+ {Opt_barrier, "barrier"},
+ {Opt_nobarrier, "nobarrier"},
+ {Opt_err, NULL}
+@@ -382,6 +389,19 @@ xfs_parseargs(
+ } else if (!strcmp(this_char, "irixsgid")) {
+ cmn_err(CE_WARN,
+ "XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
++#ifndef CONFIG_TAGGING_NONE
++ } else if (!strcmp(this_char, MNTOPT_TAGGED)) {
++ mp->m_flags |= XFS_MOUNT_TAGGED;
++ } else if (!strcmp(this_char, MNTOPT_NOTAGTAG)) {
++ mp->m_flags &= ~XFS_MOUNT_TAGGED;
++ } else if (!strcmp(this_char, MNTOPT_TAGXID)) {
++ mp->m_flags |= XFS_MOUNT_TAGGED;
++#endif
++#ifdef CONFIG_PROPAGATE
++ } else if (!strcmp(this_char, MNTOPT_TAGGED)) {
++ /* use value */
++ mp->m_flags |= XFS_MOUNT_TAGGED;
++#endif
+ } else {
+ cmn_err(CE_WARN,
+ "XFS: unknown mount option [%s].", this_char);
+@@ -1270,6 +1290,16 @@ xfs_fs_remount(
+ case Opt_nobarrier:
+ mp->m_flags &= ~XFS_MOUNT_BARRIER;
+ break;
++ case Opt_tag:
++ if (!(sb->s_flags & MS_TAGGED)) {
++ printk(KERN_INFO
++ "XFS: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ return -EINVAL;
++ }
++ break;
++ case Opt_notag:
++ break;
+ default:
+ /*
+ * Logically we would return an error here to prevent
+@@ -1477,6 +1507,9 @@ xfs_fs_fill_super(
+
+ XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, mtpt, mp->m_fsname);
+
++ if (mp->m_flags & XFS_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
++
+ sb->s_magic = XFS_SB_MAGIC;
+ sb->s_blocksize = mp->m_sb.sb_blocksize;
+ sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_dinode.h linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_dinode.h
+--- linux-2.6.32.1/fs/xfs/xfs_dinode.h 2009-06-11 17:13:09.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_dinode.h 2009-12-03 20:04:56.000000000 +0100
+@@ -50,7 +50,9 @@ typedef struct xfs_dinode {
+ __be32 di_gid; /* owner's group id */
+ __be32 di_nlink; /* number of links to file */
+ __be16 di_projid; /* owner's project id */
+- __u8 di_pad[8]; /* unused, zeroed space */
++ __be16 di_tag; /* context tagging */
++ __be16 di_vflags; /* vserver specific flags */
++ __u8 di_pad[4]; /* unused, zeroed space */
+ __be16 di_flushiter; /* incremented on flush */
+ xfs_timestamp_t di_atime; /* time last accessed */
+ xfs_timestamp_t di_mtime; /* time last modified */
+@@ -183,6 +185,8 @@ static inline void xfs_dinode_put_rdev(s
+ #define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */
+ #define XFS_DIFLAG_NODEFRAG_BIT 13 /* do not reorganize/defragment */
+ #define XFS_DIFLAG_FILESTREAM_BIT 14 /* use filestream allocator */
++#define XFS_DIFLAG_IXUNLINK_BIT 15 /* Immutable inver on unlink */
++
+ #define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT)
+ #define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT)
+ #define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT)
+@@ -198,6 +202,7 @@ static inline void xfs_dinode_put_rdev(s
+ #define XFS_DIFLAG_EXTSZINHERIT (1 << XFS_DIFLAG_EXTSZINHERIT_BIT)
+ #define XFS_DIFLAG_NODEFRAG (1 << XFS_DIFLAG_NODEFRAG_BIT)
+ #define XFS_DIFLAG_FILESTREAM (1 << XFS_DIFLAG_FILESTREAM_BIT)
++#define XFS_DIFLAG_IXUNLINK (1 << XFS_DIFLAG_IXUNLINK_BIT)
+
+ #ifdef CONFIG_XFS_RT
+ #define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
+@@ -210,6 +215,10 @@ static inline void xfs_dinode_put_rdev(s
+ XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
+ XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \
+ XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | XFS_DIFLAG_EXTSIZE | \
+- XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG | XFS_DIFLAG_FILESTREAM)
++ XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG | XFS_DIFLAG_FILESTREAM | \
++ XFS_DIFLAG_IXUNLINK)
++
++#define XFS_DIVFLAG_BARRIER 0x01
++#define XFS_DIVFLAG_COW 0x02
+
+ #endif /* __XFS_DINODE_H__ */
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_fs.h linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_fs.h
+--- linux-2.6.32.1/fs/xfs/xfs_fs.h 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -67,6 +67,9 @@ struct fsxattr {
+ #define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
+ #define XFS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
+ #define XFS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
++#define XFS_XFLAG_IXUNLINK 0x00008000 /* immutable invert on unlink */
++#define XFS_XFLAG_BARRIER 0x10000000 /* chroot() barrier */
++#define XFS_XFLAG_COW 0x20000000 /* copy on write mark */
+ #define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
+
+ /*
+@@ -292,7 +295,8 @@ typedef struct xfs_bstat {
+ __s32 bs_extents; /* number of extents */
+ __u32 bs_gen; /* generation count */
+ __u16 bs_projid; /* project id */
+- unsigned char bs_pad[14]; /* pad space, unused */
++ __u16 bs_tag; /* context tagging */
++ unsigned char bs_pad[12]; /* pad space, unused */
+ __u32 bs_dmevmask; /* DMIG event mask */
+ __u16 bs_dmstate; /* DMIG state info */
+ __u16 bs_aextents; /* attribute number of extents */
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_ialloc.c linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_ialloc.c
+--- linux-2.6.32.1/fs/xfs/xfs_ialloc.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_ialloc.c 2009-12-03 20:04:56.000000000 +0100
+@@ -41,7 +41,6 @@
+ #include "xfs_error.h"
+ #include "xfs_bmap.h"
+
+-
+ /*
+ * Allocation group level functions.
+ */
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_inode.c linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_inode.c
+--- linux-2.6.32.1/fs/xfs/xfs_inode.c 2009-12-03 20:02:54.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -249,6 +249,7 @@ xfs_inotobp(
+ return 0;
+ }
+
++#include <linux/vs_tag.h>
+
+ /*
+ * This routine is called to map an inode to the buffer containing
+@@ -654,15 +655,25 @@ xfs_iformat_btree(
+ STATIC void
+ xfs_dinode_from_disk(
+ xfs_icdinode_t *to,
+- xfs_dinode_t *from)
++ xfs_dinode_t *from,
++ int tagged)
+ {
++ uint32_t uid, gid, tag;
++
+ to->di_magic = be16_to_cpu(from->di_magic);
+ to->di_mode = be16_to_cpu(from->di_mode);
+ to->di_version = from ->di_version;
+ to->di_format = from->di_format;
+ to->di_onlink = be16_to_cpu(from->di_onlink);
+- to->di_uid = be32_to_cpu(from->di_uid);
+- to->di_gid = be32_to_cpu(from->di_gid);
++
++ uid = be32_to_cpu(from->di_uid);
++ gid = be32_to_cpu(from->di_gid);
++ tag = be16_to_cpu(from->di_tag);
++
++ to->di_uid = INOTAG_UID(tagged, uid, gid);
++ to->di_gid = INOTAG_GID(tagged, uid, gid);
++ to->di_tag = INOTAG_TAG(tagged, uid, gid, tag);
++
+ to->di_nlink = be32_to_cpu(from->di_nlink);
+ to->di_projid = be16_to_cpu(from->di_projid);
+ memcpy(to->di_pad, from->di_pad, sizeof(to->di_pad));
+@@ -683,21 +694,26 @@ xfs_dinode_from_disk(
+ to->di_dmevmask = be32_to_cpu(from->di_dmevmask);
+ to->di_dmstate = be16_to_cpu(from->di_dmstate);
+ to->di_flags = be16_to_cpu(from->di_flags);
++ to->di_vflags = be16_to_cpu(from->di_vflags);
+ to->di_gen = be32_to_cpu(from->di_gen);
+ }
+
+ void
+ xfs_dinode_to_disk(
+ xfs_dinode_t *to,
+- xfs_icdinode_t *from)
++ xfs_icdinode_t *from,
++ int tagged)
+ {
+ to->di_magic = cpu_to_be16(from->di_magic);
+ to->di_mode = cpu_to_be16(from->di_mode);
+ to->di_version = from ->di_version;
+ to->di_format = from->di_format;
+ to->di_onlink = cpu_to_be16(from->di_onlink);
+- to->di_uid = cpu_to_be32(from->di_uid);
+- to->di_gid = cpu_to_be32(from->di_gid);
++
++ to->di_uid = cpu_to_be32(TAGINO_UID(tagged, from->di_uid, from->di_tag));
++ to->di_gid = cpu_to_be32(TAGINO_GID(tagged, from->di_gid, from->di_tag));
++ to->di_tag = cpu_to_be16(TAGINO_TAG(tagged, from->di_tag));
++
+ to->di_nlink = cpu_to_be32(from->di_nlink);
+ to->di_projid = cpu_to_be16(from->di_projid);
+ memcpy(to->di_pad, from->di_pad, sizeof(to->di_pad));
+@@ -718,12 +734,14 @@ xfs_dinode_to_disk(
+ to->di_dmevmask = cpu_to_be32(from->di_dmevmask);
+ to->di_dmstate = cpu_to_be16(from->di_dmstate);
+ to->di_flags = cpu_to_be16(from->di_flags);
++ to->di_vflags = cpu_to_be16(from->di_vflags);
+ to->di_gen = cpu_to_be32(from->di_gen);
+ }
+
+ STATIC uint
+ _xfs_dic2xflags(
+- __uint16_t di_flags)
++ __uint16_t di_flags,
++ __uint16_t di_vflags)
+ {
+ uint flags = 0;
+
+@@ -734,6 +752,8 @@ _xfs_dic2xflags(
+ flags |= XFS_XFLAG_PREALLOC;
+ if (di_flags & XFS_DIFLAG_IMMUTABLE)
+ flags |= XFS_XFLAG_IMMUTABLE;
++ if (di_flags & XFS_DIFLAG_IXUNLINK)
++ flags |= XFS_XFLAG_IXUNLINK;
+ if (di_flags & XFS_DIFLAG_APPEND)
+ flags |= XFS_XFLAG_APPEND;
+ if (di_flags & XFS_DIFLAG_SYNC)
+@@ -758,6 +778,10 @@ _xfs_dic2xflags(
+ flags |= XFS_XFLAG_FILESTREAM;
+ }
+
++ if (di_vflags & XFS_DIVFLAG_BARRIER)
++ flags |= FS_BARRIER_FL;
++ if (di_vflags & XFS_DIVFLAG_COW)
++ flags |= FS_COW_FL;
+ return flags;
+ }
+
+@@ -767,7 +791,7 @@ xfs_ip2xflags(
+ {
+ xfs_icdinode_t *dic = &ip->i_d;
+
+- return _xfs_dic2xflags(dic->di_flags) |
++ return _xfs_dic2xflags(dic->di_flags, dic->di_vflags) |
+ (XFS_IFORK_Q(ip) ? XFS_XFLAG_HASATTR : 0);
+ }
+
+@@ -775,7 +799,8 @@ uint
+ xfs_dic2xflags(
+ xfs_dinode_t *dip)
+ {
+- return _xfs_dic2xflags(be16_to_cpu(dip->di_flags)) |
++ return _xfs_dic2xflags(be16_to_cpu(dip->di_flags),
++ be16_to_cpu(dip->di_vflags)) |
+ (XFS_DFORK_Q(dip) ? XFS_XFLAG_HASATTR : 0);
+ }
+
+@@ -811,7 +836,6 @@ xfs_iread(
+ if (error)
+ return error;
+ dip = (xfs_dinode_t *)xfs_buf_offset(bp, ip->i_imap.im_boffset);
+-
+ /*
+ * If we got something that isn't an inode it means someone
+ * (nfs or dmi) has a stale handle.
+@@ -836,7 +860,8 @@ xfs_iread(
+ * Otherwise, just get the truly permanent information.
+ */
+ if (dip->di_mode) {
+- xfs_dinode_from_disk(&ip->i_d, dip);
++ xfs_dinode_from_disk(&ip->i_d, dip,
++ mp->m_flags & XFS_MOUNT_TAGGED);
+ error = xfs_iformat(ip, dip);
+ if (error) {
+ #ifdef DEBUG
+@@ -1036,6 +1061,7 @@ xfs_ialloc(
+ ASSERT(ip->i_d.di_nlink == nlink);
+ ip->i_d.di_uid = current_fsuid();
+ ip->i_d.di_gid = current_fsgid();
++ ip->i_d.di_tag = current_fstag(cr, &ip->i_vnode);
+ ip->i_d.di_projid = prid;
+ memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
+
+@@ -1096,6 +1122,7 @@ xfs_ialloc(
+ ip->i_d.di_dmevmask = 0;
+ ip->i_d.di_dmstate = 0;
+ ip->i_d.di_flags = 0;
++ ip->i_d.di_vflags = 0;
+ flags = XFS_ILOG_CORE;
+ switch (mode & S_IFMT) {
+ case S_IFIFO:
+@@ -2172,6 +2199,7 @@ xfs_ifree(
+ }
+ ip->i_d.di_mode = 0; /* mark incore inode as free */
+ ip->i_d.di_flags = 0;
++ ip->i_d.di_vflags = 0;
+ ip->i_d.di_dmevmask = 0;
+ ip->i_d.di_forkoff = 0; /* mark the attr fork not in use */
+ ip->i_df.if_ext_max =
+@@ -3139,7 +3167,8 @@ xfs_iflush_int(
+ * because if the inode is dirty at all the core must
+ * be.
+ */
+- xfs_dinode_to_disk(dip, &ip->i_d);
++ xfs_dinode_to_disk(dip, &ip->i_d,
++ mp->m_flags & XFS_MOUNT_TAGGED);
+
+ /* Wrap, we never let the log put out DI_MAX_FLUSH */
+ if (ip->i_d.di_flushiter == DI_MAX_FLUSH)
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_inode.h linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_inode.h
+--- linux-2.6.32.1/fs/xfs/xfs_inode.h 2009-12-03 20:02:54.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_inode.h 2009-12-03 20:04:56.000000000 +0100
+@@ -135,7 +135,9 @@ typedef struct xfs_icdinode {
+ __uint32_t di_gid; /* owner's group id */
+ __uint32_t di_nlink; /* number of links to file */
+ __uint16_t di_projid; /* owner's project id */
+- __uint8_t di_pad[8]; /* unused, zeroed space */
++ __uint16_t di_tag; /* context tagging */
++ __uint16_t di_vflags; /* vserver specific flags */
++ __uint8_t di_pad[4]; /* unused, zeroed space */
+ __uint16_t di_flushiter; /* incremented on flush */
+ xfs_ictimestamp_t di_atime; /* time last accessed */
+ xfs_ictimestamp_t di_mtime; /* time last modified */
+@@ -569,7 +571,7 @@ int xfs_itobp(struct xfs_mount *, struc
+ int xfs_iread(struct xfs_mount *, struct xfs_trans *,
+ struct xfs_inode *, xfs_daddr_t, uint);
+ void xfs_dinode_to_disk(struct xfs_dinode *,
+- struct xfs_icdinode *);
++ struct xfs_icdinode *, int);
+ void xfs_idestroy_fork(struct xfs_inode *, int);
+ void xfs_idata_realloc(struct xfs_inode *, int, int);
+ void xfs_iroot_realloc(struct xfs_inode *, int, int);
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_itable.c linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_itable.c
+--- linux-2.6.32.1/fs/xfs/xfs_itable.c 2009-12-03 20:02:54.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_itable.c 2009-12-03 20:04:56.000000000 +0100
+@@ -84,6 +84,7 @@ xfs_bulkstat_one_iget(
+ buf->bs_mode = dic->di_mode;
+ buf->bs_uid = dic->di_uid;
+ buf->bs_gid = dic->di_gid;
++ buf->bs_tag = dic->di_tag;
+ buf->bs_size = dic->di_size;
+
+ /*
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_log_recover.c linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_log_recover.c
+--- linux-2.6.32.1/fs/xfs/xfs_log_recover.c 2009-12-03 20:02:54.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_log_recover.c 2009-12-03 20:04:56.000000000 +0100
+@@ -2467,7 +2467,8 @@ xlog_recover_do_inode_trans(
+ }
+
+ /* The core is in in-core format */
+- xfs_dinode_to_disk(dip, (xfs_icdinode_t *)item->ri_buf[1].i_addr);
++ xfs_dinode_to_disk(dip, (xfs_icdinode_t *)item->ri_buf[1].i_addr,
++ mp->m_flags & XFS_MOUNT_TAGGED);
+
+ /* the rest is in on-disk format */
+ if (item->ri_buf[1].i_len > sizeof(struct xfs_icdinode)) {
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_mount.h linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_mount.h
+--- linux-2.6.32.1/fs/xfs/xfs_mount.h 2009-12-03 20:02:54.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_mount.h 2009-12-03 20:04:56.000000000 +0100
+@@ -283,6 +283,7 @@ typedef struct xfs_mount {
+ allocator */
+ #define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */
+
++#define XFS_MOUNT_TAGGED (1ULL << 31) /* context tagging */
+
+ /*
+ * Default minimum read and write sizes.
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_vnodeops.c linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_vnodeops.c
+--- linux-2.6.32.1/fs/xfs/xfs_vnodeops.c 2009-12-03 20:02:54.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_vnodeops.c 2009-12-03 20:04:56.000000000 +0100
+@@ -54,6 +54,80 @@
+ #include "xfs_filestream.h"
+ #include "xfs_vnodeops.h"
+
++
++STATIC void
++xfs_get_inode_flags(
++ xfs_inode_t *ip)
++{
++ struct inode *inode = VFS_I(ip);
++ unsigned int flags = inode->i_flags;
++ unsigned int vflags = inode->i_vflags;
++
++ if (flags & S_IMMUTABLE)
++ ip->i_d.di_flags |= XFS_DIFLAG_IMMUTABLE;
++ else
++ ip->i_d.di_flags &= ~XFS_DIFLAG_IMMUTABLE;
++ if (flags & S_IXUNLINK)
++ ip->i_d.di_flags |= XFS_DIFLAG_IXUNLINK;
++ else
++ ip->i_d.di_flags &= ~XFS_DIFLAG_IXUNLINK;
++
++ if (vflags & V_BARRIER)
++ ip->i_d.di_vflags |= XFS_DIVFLAG_BARRIER;
++ else
++ ip->i_d.di_vflags &= ~XFS_DIVFLAG_BARRIER;
++ if (vflags & V_COW)
++ ip->i_d.di_vflags |= XFS_DIVFLAG_COW;
++ else
++ ip->i_d.di_vflags &= ~XFS_DIVFLAG_COW;
++}
++
++int
++xfs_sync_flags(
++ struct inode *inode,
++ int flags,
++ int vflags)
++{
++ struct xfs_inode *ip = XFS_I(inode);
++ struct xfs_mount *mp = ip->i_mount;
++ struct xfs_trans *tp;
++ unsigned int lock_flags = 0;
++ int code;
++
++ tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
++ code = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0);
++ if (code)
++ goto error_out;
++
++ lock_flags = XFS_ILOCK_EXCL;
++ xfs_ilock(ip, lock_flags);
++
++ xfs_trans_ijoin(tp, ip, lock_flags);
++ xfs_trans_ihold(tp, ip);
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ xfs_get_inode_flags(ip);
++
++ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
++ xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
++
++ XFS_STATS_INC(xs_ig_attrchg);
++
++ if (mp->m_flags & XFS_MOUNT_WSYNC)
++ xfs_trans_set_sync(tp);
++ code = xfs_trans_commit(tp, 0);
++ xfs_iunlock(ip, lock_flags);
++ return code;
++
++error_out:
++ xfs_trans_cancel(tp, 0);
++ if (lock_flags)
++ xfs_iunlock(ip, lock_flags);
++ return code;
++}
++
++
+ int
+ xfs_setattr(
+ struct xfs_inode *ip,
+@@ -69,6 +143,7 @@ xfs_setattr(
+ uint commit_flags=0;
+ uid_t uid=0, iuid=0;
+ gid_t gid=0, igid=0;
++ tag_t tag=0, itag=0;
+ int timeflags = 0;
+ struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2;
+ int need_iolock = 1;
+@@ -165,7 +240,7 @@ xfs_setattr(
+ /*
+ * Change file ownership. Must be the owner or privileged.
+ */
+- if (mask & (ATTR_UID|ATTR_GID)) {
++ if (mask & (ATTR_UID|ATTR_GID|ATTR_TAG)) {
+ /*
+ * These IDs could have changed since we last looked at them.
+ * But, we're assured that if the ownership did change
+@@ -174,8 +249,10 @@ xfs_setattr(
+ */
+ iuid = ip->i_d.di_uid;
+ igid = ip->i_d.di_gid;
++ itag = ip->i_d.di_tag;
+ gid = (mask & ATTR_GID) ? iattr->ia_gid : igid;
+ uid = (mask & ATTR_UID) ? iattr->ia_uid : iuid;
++ tag = (mask & ATTR_TAG) ? iattr->ia_tag : itag;
+
+ /*
+ * Do a quota reservation only if uid/gid is actually
+@@ -183,7 +260,8 @@ xfs_setattr(
+ */
+ if (XFS_IS_QUOTA_RUNNING(mp) &&
+ ((XFS_IS_UQUOTA_ON(mp) && iuid != uid) ||
+- (XFS_IS_GQUOTA_ON(mp) && igid != gid))) {
++ (XFS_IS_GQUOTA_ON(mp) && igid != gid) ||
++ (XFS_IS_GQUOTA_ON(mp) && itag != tag))) {
+ ASSERT(tp);
+ code = xfs_qm_vop_chown_reserve(tp, ip, udqp, gdqp,
+ capable(CAP_FOWNER) ?
+@@ -336,7 +414,7 @@ xfs_setattr(
+ /*
+ * Change file ownership. Must be the owner or privileged.
+ */
+- if (mask & (ATTR_UID|ATTR_GID)) {
++ if (mask & (ATTR_UID|ATTR_GID|ATTR_TAG)) {
+ /*
+ * CAP_FSETID overrides the following restrictions:
+ *
+@@ -352,6 +430,10 @@ xfs_setattr(
+ * Change the ownerships and register quota modifications
+ * in the transaction.
+ */
++ if (itag != tag) {
++ ip->i_d.di_tag = tag;
++ inode->i_tag = tag;
++ }
+ if (iuid != uid) {
+ if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_UQUOTA_ON(mp)) {
+ ASSERT(mask & ATTR_UID);
+diff -NurpP --minimal linux-2.6.32.1/fs/xfs/xfs_vnodeops.h linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_vnodeops.h
+--- linux-2.6.32.1/fs/xfs/xfs_vnodeops.h 2009-09-10 15:26:24.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/fs/xfs/xfs_vnodeops.h 2009-12-03 20:04:56.000000000 +0100
+@@ -14,6 +14,7 @@ struct xfs_inode;
+ struct xfs_iomap;
+
+
++int xfs_sync_xflags(struct xfs_inode *ip);
+ int xfs_setattr(struct xfs_inode *ip, struct iattr *vap, int flags);
+ #define XFS_ATTR_DMI 0x01 /* invocation from a DMI function */
+ #define XFS_ATTR_NONBLOCK 0x02 /* return EAGAIN if operation would block */
+diff -NurpP --minimal linux-2.6.32.1/include/asm-generic/tlb.h linux-2.6.32.1-vs2.3.0.36.27/include/asm-generic/tlb.h
+--- linux-2.6.32.1/include/asm-generic/tlb.h 2009-09-10 15:26:24.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/asm-generic/tlb.h 2009-12-03 20:04:56.000000000 +0100
+@@ -14,6 +14,7 @@
+ #define _ASM_GENERIC__TLB_H
+
+ #include <linux/swap.h>
++#include <linux/vs_memory.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/capability.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/capability.h
+--- linux-2.6.32.1/include/linux/capability.h 2009-12-03 20:02:54.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/capability.h 2009-12-03 20:04:56.000000000 +0100
+@@ -285,6 +285,7 @@ struct cpu_vfs_cap_data {
+ arbitrary SCSI commands */
+ /* Allow setting encryption key on loopback filesystem */
+ /* Allow setting zone reclaim policy */
++/* Allow the selection of a security context */
+
+ #define CAP_SYS_ADMIN 21
+
+@@ -357,7 +358,13 @@ struct cpu_vfs_cap_data {
+
+ #define CAP_MAC_ADMIN 33
+
+-#define CAP_LAST_CAP CAP_MAC_ADMIN
++/* Allow context manipulations */
++/* Allow changing context info on files */
++
++#define CAP_CONTEXT 34
++
++
++#define CAP_LAST_CAP CAP_CONTEXT
+
+ #define cap_valid(x) ((x) >= 0 && (x) <= CAP_LAST_CAP)
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/devpts_fs.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/devpts_fs.h
+--- linux-2.6.32.1/include/linux/devpts_fs.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/devpts_fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -45,5 +45,4 @@ static inline void devpts_pty_kill(struc
+
+ #endif
+
+-
+ #endif /* _LINUX_DEVPTS_FS_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/ext2_fs.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/ext2_fs.h
+--- linux-2.6.32.1/include/linux/ext2_fs.h 2009-03-24 14:22:41.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/ext2_fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -189,8 +189,12 @@ struct ext2_group_desc
+ #define EXT2_NOTAIL_FL FS_NOTAIL_FL /* file tail should not be merged */
+ #define EXT2_DIRSYNC_FL FS_DIRSYNC_FL /* dirsync behaviour (directories only) */
+ #define EXT2_TOPDIR_FL FS_TOPDIR_FL /* Top of directory hierarchies*/
++#define EXT2_IXUNLINK_FL FS_IXUNLINK_FL /* Immutable invert on unlink */
+ #define EXT2_RESERVED_FL FS_RESERVED_FL /* reserved for ext2 lib */
+
++#define EXT2_BARRIER_FL FS_BARRIER_FL /* Barrier for chroot() */
++#define EXT2_COW_FL FS_COW_FL /* Copy on Write marker */
++
+ #define EXT2_FL_USER_VISIBLE FS_FL_USER_VISIBLE /* User visible flags */
+ #define EXT2_FL_USER_MODIFIABLE FS_FL_USER_MODIFIABLE /* User modifiable flags */
+
+@@ -274,7 +278,8 @@ struct ext2_inode {
+ __u16 i_pad1;
+ __le16 l_i_uid_high; /* these 2 fields */
+ __le16 l_i_gid_high; /* were reserved2[0] */
+- __u32 l_i_reserved2;
++ __le16 l_i_tag; /* Context Tag */
++ __u16 l_i_reserved2;
+ } linux2;
+ struct {
+ __u8 h_i_frag; /* Fragment number */
+@@ -303,6 +308,7 @@ struct ext2_inode {
+ #define i_gid_low i_gid
+ #define i_uid_high osd2.linux2.l_i_uid_high
+ #define i_gid_high osd2.linux2.l_i_gid_high
++#define i_raw_tag osd2.linux2.l_i_tag
+ #define i_reserved2 osd2.linux2.l_i_reserved2
+ #endif
+
+@@ -347,6 +353,7 @@ struct ext2_inode {
+ #define EXT2_MOUNT_USRQUOTA 0x020000 /* user quota */
+ #define EXT2_MOUNT_GRPQUOTA 0x040000 /* group quota */
+ #define EXT2_MOUNT_RESERVATION 0x080000 /* Preallocation */
++#define EXT2_MOUNT_TAGGED (1<<24) /* Enable Context Tags */
+
+
+ #define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt
+diff -NurpP --minimal linux-2.6.32.1/include/linux/ext3_fs.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/ext3_fs.h
+--- linux-2.6.32.1/include/linux/ext3_fs.h 2009-09-10 15:26:25.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/ext3_fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -173,10 +173,14 @@ struct ext3_group_desc
+ #define EXT3_NOTAIL_FL 0x00008000 /* file tail should not be merged */
+ #define EXT3_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
+ #define EXT3_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
++#define EXT3_IXUNLINK_FL 0x08000000 /* Immutable invert on unlink */
+ #define EXT3_RESERVED_FL 0x80000000 /* reserved for ext3 lib */
+
+-#define EXT3_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
+-#define EXT3_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */
++#define EXT3_BARRIER_FL 0x04000000 /* Barrier for chroot() */
++#define EXT3_COW_FL 0x20000000 /* Copy on Write marker */
++
++#define EXT3_FL_USER_VISIBLE 0x0103DFFF /* User visible flags */
++#define EXT3_FL_USER_MODIFIABLE 0x010380FF /* User modifiable flags */
+
+ /* Flags that should be inherited by new inodes from their parent. */
+ #define EXT3_FL_INHERITED (EXT3_SECRM_FL | EXT3_UNRM_FL | EXT3_COMPR_FL |\
+@@ -320,7 +324,8 @@ struct ext3_inode {
+ __u16 i_pad1;
+ __le16 l_i_uid_high; /* these 2 fields */
+ __le16 l_i_gid_high; /* were reserved2[0] */
+- __u32 l_i_reserved2;
++ __le16 l_i_tag; /* Context Tag */
++ __u16 l_i_reserved2;
+ } linux2;
+ struct {
+ __u8 h_i_frag; /* Fragment number */
+@@ -351,6 +356,7 @@ struct ext3_inode {
+ #define i_gid_low i_gid
+ #define i_uid_high osd2.linux2.l_i_uid_high
+ #define i_gid_high osd2.linux2.l_i_gid_high
++#define i_raw_tag osd2.linux2.l_i_tag
+ #define i_reserved2 osd2.linux2.l_i_reserved2
+
+ #elif defined(__GNU__)
+@@ -414,6 +420,7 @@ struct ext3_inode {
+ #define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
+ #define EXT3_MOUNT_DATA_ERR_ABORT 0x400000 /* Abort on file data write
+ * error in ordered mode */
++#define EXT3_MOUNT_TAGGED (1<<24) /* Enable Context Tags */
+
+ /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
+ #ifndef _LINUX_EXT2_FS_H
+@@ -892,6 +899,7 @@ extern void ext3_get_inode_flags(struct
+ extern void ext3_set_aops(struct inode *inode);
+ extern int ext3_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ u64 start, u64 len);
++extern int ext3_sync_flags(struct inode *, int, int);
+
+ /* ioctl.c */
+ extern long ext3_ioctl(struct file *, unsigned int, unsigned long);
+diff -NurpP --minimal linux-2.6.32.1/include/linux/fs.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/fs.h
+--- linux-2.6.32.1/include/linux/fs.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -205,6 +205,9 @@ struct inodes_stat_t {
+ #define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
+ #define MS_I_VERSION (1<<23) /* Update inode I_version field */
+ #define MS_STRICTATIME (1<<24) /* Always perform atime updates */
++#define MS_TAGGED (1<<25) /* use generic inode tagging */
++#define MS_TAGID (1<<26) /* use specific tag for this mount */
++#define MS_NOTAGCHECK (1<<27) /* don't check tags */
+ #define MS_ACTIVE (1<<30)
+ #define MS_NOUSER (1<<31)
+
+@@ -231,6 +234,14 @@ struct inodes_stat_t {
+ #define S_NOCMTIME 128 /* Do not update file c/mtime */
+ #define S_SWAPFILE 256 /* Do not truncate: swapon got its bmaps */
+ #define S_PRIVATE 512 /* Inode is fs-internal */
++#define S_IXUNLINK 1024 /* Immutable Invert on unlink */
++
++/* Linux-VServer related Inode flags */
++
++#define V_VALID 1
++#define V_XATTR 2
++#define V_BARRIER 4 /* Barrier for chroot() */
++#define V_COW 8 /* Copy on Write */
+
+ /*
+ * Note that nosuid etc flags are inode-specific: setting some file-system
+@@ -253,12 +264,15 @@ struct inodes_stat_t {
+ #define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \
+ ((inode)->i_flags & (S_SYNC|S_DIRSYNC)))
+ #define IS_MANDLOCK(inode) __IS_FLG(inode, MS_MANDLOCK)
+-#define IS_NOATIME(inode) __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
+-#define IS_I_VERSION(inode) __IS_FLG(inode, MS_I_VERSION)
++#define IS_NOATIME(inode) __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
++#define IS_I_VERSION(inode) __IS_FLG(inode, MS_I_VERSION)
++#define IS_TAGGED(inode) __IS_FLG(inode, MS_TAGGED)
+
+ #define IS_NOQUOTA(inode) ((inode)->i_flags & S_NOQUOTA)
+ #define IS_APPEND(inode) ((inode)->i_flags & S_APPEND)
+ #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE)
++#define IS_IXUNLINK(inode) ((inode)->i_flags & S_IXUNLINK)
++#define IS_IXORUNLINK(inode) ((IS_IXUNLINK(inode) ? S_IMMUTABLE : 0) ^ IS_IMMUTABLE(inode))
+ #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL)
+
+ #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD)
+@@ -266,6 +280,16 @@ struct inodes_stat_t {
+ #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE)
+ #define IS_PRIVATE(inode) ((inode)->i_flags & S_PRIVATE)
+
++#define IS_BARRIER(inode) (S_ISDIR((inode)->i_mode) && ((inode)->i_vflags & V_BARRIER))
++
++#ifdef CONFIG_VSERVER_COWBL
++# define IS_COW(inode) (IS_IXUNLINK(inode) && IS_IMMUTABLE(inode))
++# define IS_COW_LINK(inode) (S_ISREG((inode)->i_mode) && ((inode)->i_nlink > 1))
++#else
++# define IS_COW(inode) (0)
++# define IS_COW_LINK(inode) (0)
++#endif
++
+ /* the read-only stuff doesn't really belong here, but any other place is
+ probably as bad and I don't want to create yet another include file. */
+
+@@ -347,11 +371,14 @@ struct inodes_stat_t {
+ #define FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
+ #define FS_EXTENT_FL 0x00080000 /* Extents */
+ #define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */
++#define FS_IXUNLINK_FL 0x08000000 /* Immutable invert on unlink */
+ #define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
+
+-#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
+-#define FS_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */
++#define FS_BARRIER_FL 0x04000000 /* Barrier for chroot() */
++#define FS_COW_FL 0x20000000 /* Copy on Write marker */
+
++#define FS_FL_USER_VISIBLE 0x0103DFFF /* User visible flags */
++#define FS_FL_USER_MODIFIABLE 0x010380FF /* User modifiable flags */
+
+ #define SYNC_FILE_RANGE_WAIT_BEFORE 1
+ #define SYNC_FILE_RANGE_WRITE 2
+@@ -433,6 +460,7 @@ typedef void (dio_iodone_t)(struct kiocb
+ #define ATTR_KILL_PRIV (1 << 14)
+ #define ATTR_OPEN (1 << 15) /* Truncating from open(O_TRUNC) */
+ #define ATTR_TIMES_SET (1 << 16)
++#define ATTR_TAG (1 << 17)
+
+ /*
+ * This is the Inode Attributes structure, used for notify_change(). It
+@@ -448,6 +476,7 @@ struct iattr {
+ umode_t ia_mode;
+ uid_t ia_uid;
+ gid_t ia_gid;
++ tag_t ia_tag;
+ loff_t ia_size;
+ struct timespec ia_atime;
+ struct timespec ia_mtime;
+@@ -461,6 +490,9 @@ struct iattr {
+ struct file *ia_file;
+ };
+
++#define ATTR_FLAG_BARRIER 512 /* Barrier for chroot() */
++#define ATTR_FLAG_IXUNLINK 1024 /* Immutable invert on unlink */
++
+ /*
+ * Includes for diskquotas.
+ */
+@@ -726,7 +758,9 @@ struct inode {
+ unsigned int i_nlink;
+ uid_t i_uid;
+ gid_t i_gid;
++ tag_t i_tag;
+ dev_t i_rdev;
++ dev_t i_mdev;
+ u64 i_version;
+ loff_t i_size;
+ #ifdef __NEED_I_SIZE_ORDERED
+@@ -773,7 +807,8 @@ struct inode {
+ unsigned long i_state;
+ unsigned long dirtied_when; /* jiffies of first dirtying */
+
+- unsigned int i_flags;
++ unsigned short i_flags;
++ unsigned short i_vflags;
+
+ atomic_t i_writecount;
+ #ifdef CONFIG_SECURITY
+@@ -861,12 +896,12 @@ static inline void i_size_write(struct i
+
+ static inline unsigned iminor(const struct inode *inode)
+ {
+- return MINOR(inode->i_rdev);
++ return MINOR(inode->i_mdev);
+ }
+
+ static inline unsigned imajor(const struct inode *inode)
+ {
+- return MAJOR(inode->i_rdev);
++ return MAJOR(inode->i_mdev);
+ }
+
+ extern struct block_device *I_BDEV(struct inode *inode);
+@@ -925,6 +960,7 @@ struct file {
+ loff_t f_pos;
+ struct fown_struct f_owner;
+ const struct cred *f_cred;
++ xid_t f_xid;
+ struct file_ra_state f_ra;
+
+ u64 f_version;
+@@ -1066,6 +1102,7 @@ struct file_lock {
+ struct file *fl_file;
+ loff_t fl_start;
+ loff_t fl_end;
++ xid_t fl_xid;
+
+ struct fasync_struct * fl_fasync; /* for lease break notifications */
+ unsigned long fl_break_time; /* for nonblocking lease breaks */
+@@ -1531,6 +1568,7 @@ struct inode_operations {
+ ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
+ ssize_t (*listxattr) (struct dentry *, char *, size_t);
+ int (*removexattr) (struct dentry *, const char *);
++ int (*sync_flags) (struct inode *, int, int);
+ void (*truncate_range)(struct inode *, loff_t, loff_t);
+ long (*fallocate)(struct inode *inode, int mode, loff_t offset,
+ loff_t len);
+@@ -1551,6 +1589,7 @@ extern ssize_t vfs_readv(struct file *,
+ unsigned long, loff_t *);
+ extern ssize_t vfs_writev(struct file *, const struct iovec __user *,
+ unsigned long, loff_t *);
++ssize_t vfs_sendfile(struct file *, struct file *, loff_t *, size_t, loff_t);
+
+ struct super_operations {
+ struct inode *(*alloc_inode)(struct super_block *sb);
+@@ -2347,6 +2386,7 @@ extern int dcache_dir_open(struct inode
+ extern int dcache_dir_close(struct inode *, struct file *);
+ extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
+ extern int dcache_readdir(struct file *, void *, filldir_t);
++extern int dcache_readdir_filter(struct file *, void *, filldir_t, int (*)(struct dentry *));
+ extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+ extern int simple_statfs(struct dentry *, struct kstatfs *);
+ extern int simple_link(struct dentry *, struct inode *, struct dentry *);
+diff -NurpP --minimal linux-2.6.32.1/include/linux/gfs2_ondisk.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/gfs2_ondisk.h
+--- linux-2.6.32.1/include/linux/gfs2_ondisk.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/gfs2_ondisk.h 2009-12-03 20:04:56.000000000 +0100
+@@ -235,6 +235,9 @@ enum {
+ gfs2fl_NoAtime = 7,
+ gfs2fl_Sync = 8,
+ gfs2fl_System = 9,
++ gfs2fl_IXUnlink = 16,
++ gfs2fl_Barrier = 17,
++ gfs2fl_Cow = 18,
+ gfs2fl_TruncInProg = 29,
+ gfs2fl_InheritDirectio = 30,
+ gfs2fl_InheritJdata = 31,
+@@ -251,6 +254,9 @@ enum {
+ #define GFS2_DIF_NOATIME 0x00000080
+ #define GFS2_DIF_SYNC 0x00000100
+ #define GFS2_DIF_SYSTEM 0x00000200 /* New in gfs2 */
++#define GFS2_DIF_IXUNLINK 0x00010000
++#define GFS2_DIF_BARRIER 0x00020000
++#define GFS2_DIF_COW 0x00040000
+ #define GFS2_DIF_TRUNC_IN_PROG 0x20000000 /* New in gfs2 */
+ #define GFS2_DIF_INHERIT_DIRECTIO 0x40000000
+ #define GFS2_DIF_INHERIT_JDATA 0x80000000
+diff -NurpP --minimal linux-2.6.32.1/include/linux/if_tun.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/if_tun.h
+--- linux-2.6.32.1/include/linux/if_tun.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/if_tun.h 2009-12-03 20:04:56.000000000 +0100
+@@ -48,6 +48,7 @@
+ #define TUNGETIFF _IOR('T', 210, unsigned int)
+ #define TUNGETSNDBUF _IOR('T', 211, int)
+ #define TUNSETSNDBUF _IOW('T', 212, int)
++#define TUNSETNID _IOW('T', 215, int)
+
+ /* TUNSETIFF ifr flags */
+ #define IFF_TUN 0x0001
+diff -NurpP --minimal linux-2.6.32.1/include/linux/init_task.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/init_task.h
+--- linux-2.6.32.1/include/linux/init_task.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/init_task.h 2009-12-03 20:04:56.000000000 +0100
+@@ -184,6 +184,10 @@ extern struct cred init_cred;
+ INIT_FTRACE_GRAPH \
+ INIT_TRACE_RECURSION \
+ INIT_TASK_RCU_PREEMPT(tsk) \
++ .xid = 0, \
++ .vx_info = NULL, \
++ .nid = 0, \
++ .nx_info = NULL, \
+ }
+
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/ipc.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/ipc.h
+--- linux-2.6.32.1/include/linux/ipc.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/ipc.h 2009-12-03 20:04:56.000000000 +0100
+@@ -91,6 +91,7 @@ struct kern_ipc_perm
+ key_t key;
+ uid_t uid;
+ gid_t gid;
++ xid_t xid;
+ uid_t cuid;
+ gid_t cgid;
+ mode_t mode;
+diff -NurpP --minimal linux-2.6.32.1/include/linux/Kbuild linux-2.6.32.1-vs2.3.0.36.27/include/linux/Kbuild
+--- linux-2.6.32.1/include/linux/Kbuild 2009-12-03 20:02:54.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/Kbuild 2009-12-03 20:04:56.000000000 +0100
+@@ -382,5 +382,8 @@ unifdef-y += xattr.h
+ unifdef-y += xfrm.h
+
+ objhdr-y += version.h
++
++header-y += vserver/
+ header-y += wimax.h
+ header-y += wimax/
++
+diff -NurpP --minimal linux-2.6.32.1/include/linux/loop.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/loop.h
+--- linux-2.6.32.1/include/linux/loop.h 2009-09-10 15:26:25.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/loop.h 2009-12-03 20:04:56.000000000 +0100
+@@ -45,6 +45,7 @@ struct loop_device {
+ struct loop_func_table *lo_encryption;
+ __u32 lo_init[2];
+ uid_t lo_key_owner; /* Who set the key */
++ xid_t lo_xid;
+ int (*ioctl)(struct loop_device *, int cmd,
+ unsigned long arg);
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/magic.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/magic.h
+--- linux-2.6.32.1/include/linux/magic.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/magic.h 2009-12-03 20:04:56.000000000 +0100
+@@ -3,7 +3,7 @@
+
+ #define ADFS_SUPER_MAGIC 0xadf5
+ #define AFFS_SUPER_MAGIC 0xadff
+-#define AFS_SUPER_MAGIC 0x5346414F
++#define AFS_SUPER_MAGIC 0x5346414F
+ #define AUTOFS_SUPER_MAGIC 0x0187
+ #define CODA_SUPER_MAGIC 0x73757245
+ #define CRAMFS_MAGIC 0x28cd3d45 /* some random number */
+@@ -38,6 +38,7 @@
+ #define NFS_SUPER_MAGIC 0x6969
+ #define OPENPROM_SUPER_MAGIC 0x9fa1
+ #define PROC_SUPER_MAGIC 0x9fa0
++#define DEVPTS_SUPER_MAGIC 0x1cd1
+ #define QNX4_SUPER_MAGIC 0x002f /* qnx4 fs detection */
+
+ #define REISERFS_SUPER_MAGIC 0x52654973 /* used by gcc */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/major.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/major.h
+--- linux-2.6.32.1/include/linux/major.h 2009-09-10 15:26:25.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/major.h 2009-12-03 20:04:56.000000000 +0100
+@@ -15,6 +15,7 @@
+ #define HD_MAJOR IDE0_MAJOR
+ #define PTY_SLAVE_MAJOR 3
+ #define TTY_MAJOR 4
++#define VROOT_MAJOR 4
+ #define TTYAUX_MAJOR 5
+ #define LP_MAJOR 6
+ #define VCS_MAJOR 7
+diff -NurpP --minimal linux-2.6.32.1/include/linux/mm_types.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/mm_types.h
+--- linux-2.6.32.1/include/linux/mm_types.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/mm_types.h 2009-12-03 20:04:56.000000000 +0100
+@@ -246,6 +246,7 @@ struct mm_struct {
+
+ /* Architecture-specific MM context */
+ mm_context_t context;
++ struct vx_info *mm_vx_info;
+
+ /* Swap token stuff */
+ /*
+diff -NurpP --minimal linux-2.6.32.1/include/linux/mount.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/mount.h
+--- linux-2.6.32.1/include/linux/mount.h 2009-09-10 15:26:25.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/mount.h 2009-12-03 20:04:56.000000000 +0100
+@@ -36,6 +36,9 @@ struct mnt_namespace;
+ #define MNT_UNBINDABLE 0x2000 /* if the vfsmount is a unbindable mount */
+ #define MNT_PNODE_MASK 0x3000 /* propagation flag mask */
+
++#define MNT_TAGID 0x10000
++#define MNT_NOTAG 0x20000
++
+ struct vfsmount {
+ struct list_head mnt_hash;
+ struct vfsmount *mnt_parent; /* fs we are mounted on */
+@@ -70,6 +73,7 @@ struct vfsmount {
+ #else
+ int mnt_writers;
+ #endif
++ tag_t mnt_tag; /* tagging used for vfsmount */
+ };
+
+ static inline int *get_mnt_writers_ptr(struct vfsmount *mnt)
+diff -NurpP --minimal linux-2.6.32.1/include/linux/net.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/net.h
+--- linux-2.6.32.1/include/linux/net.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/net.h 2009-12-03 20:04:56.000000000 +0100
+@@ -69,6 +69,7 @@ struct net;
+ #define SOCK_NOSPACE 2
+ #define SOCK_PASSCRED 3
+ #define SOCK_PASSSEC 4
++#define SOCK_USER_SOCKET 5
+
+ #ifndef ARCH_HAS_SOCKET_TYPES
+ /**
+diff -NurpP --minimal linux-2.6.32.1/include/linux/nfs_mount.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/nfs_mount.h
+--- linux-2.6.32.1/include/linux/nfs_mount.h 2009-03-24 14:22:43.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/nfs_mount.h 2009-12-03 20:04:56.000000000 +0100
+@@ -63,7 +63,8 @@ struct nfs_mount_data {
+ #define NFS_MOUNT_SECFLAVOUR 0x2000 /* 5 */
+ #define NFS_MOUNT_NORDIRPLUS 0x4000 /* 5 */
+ #define NFS_MOUNT_UNSHARED 0x8000 /* 5 */
+-#define NFS_MOUNT_FLAGMASK 0xFFFF
++#define NFS_MOUNT_TAGGED 0x10000 /* context tagging */
++#define NFS_MOUNT_FLAGMASK 0x1FFFF
+
+ /* The following are for internal use only */
+ #define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000
+diff -NurpP --minimal linux-2.6.32.1/include/linux/nsproxy.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/nsproxy.h
+--- linux-2.6.32.1/include/linux/nsproxy.h 2009-06-11 17:13:17.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/nsproxy.h 2009-12-03 20:04:56.000000000 +0100
+@@ -3,6 +3,7 @@
+
+ #include <linux/spinlock.h>
+ #include <linux/sched.h>
++#include <linux/vserver/debug.h>
+
+ struct mnt_namespace;
+ struct uts_namespace;
+@@ -63,22 +64,33 @@ static inline struct nsproxy *task_nspro
+ }
+
+ int copy_namespaces(unsigned long flags, struct task_struct *tsk);
++struct nsproxy *copy_nsproxy(struct nsproxy *orig);
+ void exit_task_namespaces(struct task_struct *tsk);
+ void switch_task_namespaces(struct task_struct *tsk, struct nsproxy *new);
+ void free_nsproxy(struct nsproxy *ns);
+ int unshare_nsproxy_namespaces(unsigned long, struct nsproxy **,
+ struct fs_struct *);
+
+-static inline void put_nsproxy(struct nsproxy *ns)
++#define get_nsproxy(n) __get_nsproxy(n, __FILE__, __LINE__)
++
++static inline void __get_nsproxy(struct nsproxy *ns,
++ const char *_file, int _line)
+ {
+- if (atomic_dec_and_test(&ns->count)) {
+- free_nsproxy(ns);
+- }
++ vxlprintk(VXD_CBIT(space, 0), "get_nsproxy(%p[%u])",
++ ns, atomic_read(&ns->count), _file, _line);
++ atomic_inc(&ns->count);
+ }
+
+-static inline void get_nsproxy(struct nsproxy *ns)
++#define put_nsproxy(n) __put_nsproxy(n, __FILE__, __LINE__)
++
++static inline void __put_nsproxy(struct nsproxy *ns,
++ const char *_file, int _line)
+ {
+- atomic_inc(&ns->count);
++ vxlprintk(VXD_CBIT(space, 0), "put_nsproxy(%p[%u])",
++ ns, atomic_read(&ns->count), _file, _line);
++ if (atomic_dec_and_test(&ns->count)) {
++ free_nsproxy(ns);
++ }
+ }
+
+ #ifdef CONFIG_CGROUP_NS
+diff -NurpP --minimal linux-2.6.32.1/include/linux/pid.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/pid.h
+--- linux-2.6.32.1/include/linux/pid.h 2009-03-24 14:22:43.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/pid.h 2009-12-03 20:04:56.000000000 +0100
+@@ -8,7 +8,8 @@ enum pid_type
+ PIDTYPE_PID,
+ PIDTYPE_PGID,
+ PIDTYPE_SID,
+- PIDTYPE_MAX
++ PIDTYPE_MAX,
++ PIDTYPE_REALPID
+ };
+
+ /*
+@@ -160,6 +161,7 @@ static inline pid_t pid_nr(struct pid *p
+ }
+
+ pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns);
++pid_t pid_unmapped_nr_ns(struct pid *pid, struct pid_namespace *ns);
+ pid_t pid_vnr(struct pid *pid);
+
+ #define do_each_pid_task(pid, type, task) \
+diff -NurpP --minimal linux-2.6.32.1/include/linux/proc_fs.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/proc_fs.h
+--- linux-2.6.32.1/include/linux/proc_fs.h 2009-12-03 20:02:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/proc_fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -56,6 +56,7 @@ struct proc_dir_entry {
+ nlink_t nlink;
+ uid_t uid;
+ gid_t gid;
++ int vx_flags;
+ loff_t size;
+ const struct inode_operations *proc_iops;
+ /*
+@@ -250,12 +251,18 @@ kclist_add(struct kcore_list *new, void
+ extern void kclist_add(struct kcore_list *, void *, size_t, int type);
+ #endif
+
++struct vx_info;
++struct nx_info;
++
+ union proc_op {
+ int (*proc_get_link)(struct inode *, struct path *);
+ int (*proc_read)(struct task_struct *task, char *page);
+ int (*proc_show)(struct seq_file *m,
+ struct pid_namespace *ns, struct pid *pid,
+ struct task_struct *task);
++ int (*proc_vs_read)(char *page);
++ int (*proc_vxi_read)(struct vx_info *vxi, char *page);
++ int (*proc_nxi_read)(struct nx_info *nxi, char *page);
+ };
+
+ struct ctl_table_header;
+@@ -263,6 +270,7 @@ struct ctl_table;
+
+ struct proc_inode {
+ struct pid *pid;
++ int vx_flags;
+ int fd;
+ union proc_op op;
+ struct proc_dir_entry *pde;
+diff -NurpP --minimal linux-2.6.32.1/include/linux/quotaops.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/quotaops.h
+--- linux-2.6.32.1/include/linux/quotaops.h 2009-12-03 20:02:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/quotaops.h 2009-12-03 20:04:56.000000000 +0100
+@@ -8,6 +8,7 @@
+ #define _LINUX_QUOTAOPS_
+
+ #include <linux/fs.h>
++#include <linux/vs_dlimit.h>
+
+ static inline struct quota_info *sb_dqopt(struct super_block *sb)
+ {
+@@ -154,10 +155,14 @@ static inline void vfs_dq_init(struct in
+ * a transaction (deadlocks possible otherwise) */
+ static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr)
+ {
++ if (dl_alloc_space(inode, nr))
++ return 1;
+ if (sb_any_quota_active(inode->i_sb)) {
+ /* Used space is updated in alloc_space() */
+- if (inode->i_sb->dq_op->alloc_space(inode, nr, 1) == NO_QUOTA)
++ if (inode->i_sb->dq_op->alloc_space(inode, nr, 1) == NO_QUOTA) {
++ dl_free_space(inode, nr);
+ return 1;
++ }
+ }
+ else
+ inode_add_bytes(inode, nr);
+@@ -174,10 +179,14 @@ static inline int vfs_dq_prealloc_space(
+
+ static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr)
+ {
++ if (dl_alloc_space(inode, nr))
++ return 1;
+ if (sb_any_quota_active(inode->i_sb)) {
+ /* Used space is updated in alloc_space() */
+- if (inode->i_sb->dq_op->alloc_space(inode, nr, 0) == NO_QUOTA)
++ if (inode->i_sb->dq_op->alloc_space(inode, nr, 0) == NO_QUOTA) {
++ dl_free_space(inode, nr);
+ return 1;
++ }
+ }
+ else
+ inode_add_bytes(inode, nr);
+@@ -194,20 +203,28 @@ static inline int vfs_dq_alloc_space(str
+
+ static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
+ {
++ if (dl_reserve_space(inode, nr))
++ return 1;
+ if (sb_any_quota_active(inode->i_sb)) {
+ /* Used space is updated in alloc_space() */
+- if (inode->i_sb->dq_op->reserve_space(inode, nr, 0) == NO_QUOTA)
++ if (inode->i_sb->dq_op->reserve_space(inode, nr, 0) == NO_QUOTA) {
++ dl_release_space(inode, nr);
+ return 1;
++ }
+ }
+ return 0;
+ }
+
+ static inline int vfs_dq_alloc_inode(struct inode *inode)
+ {
++ if (dl_alloc_inode(inode))
++ return 1;
+ if (sb_any_quota_active(inode->i_sb)) {
+ vfs_dq_init(inode);
+- if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA)
++ if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) {
++ dl_free_inode(inode);
+ return 1;
++ }
+ }
+ return 0;
+ }
+@@ -217,9 +234,13 @@ static inline int vfs_dq_alloc_inode(str
+ */
+ static inline int vfs_dq_claim_space(struct inode *inode, qsize_t nr)
+ {
++ if (dl_claim_space(inode, nr))
++ return 1;
+ if (sb_any_quota_active(inode->i_sb)) {
+- if (inode->i_sb->dq_op->claim_space(inode, nr) == NO_QUOTA)
++ if (inode->i_sb->dq_op->claim_space(inode, nr) == NO_QUOTA) {
++ dl_release_space(inode, nr);
+ return 1;
++ }
+ } else
+ inode_add_bytes(inode, nr);
+
+@@ -235,6 +256,7 @@ void vfs_dq_release_reservation_space(st
+ {
+ if (sb_any_quota_active(inode->i_sb))
+ inode->i_sb->dq_op->release_rsv(inode, nr);
++ dl_release_space(inode, nr);
+ }
+
+ static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
+@@ -243,6 +265,7 @@ static inline void vfs_dq_free_space_nod
+ inode->i_sb->dq_op->free_space(inode, nr);
+ else
+ inode_sub_bytes(inode, nr);
++ dl_free_space(inode, nr);
+ }
+
+ static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr)
+@@ -255,6 +278,7 @@ static inline void vfs_dq_free_inode(str
+ {
+ if (sb_any_quota_active(inode->i_sb))
+ inode->i_sb->dq_op->free_inode(inode, 1);
++ dl_free_inode(inode);
+ }
+
+ /* Cannot be called inside a transaction */
+@@ -358,6 +382,8 @@ static inline int vfs_dq_transfer(struct
+
+ static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr)
+ {
++ if (dl_alloc_space(inode, nr))
++ return 1;
+ inode_add_bytes(inode, nr);
+ return 0;
+ }
+@@ -371,6 +397,8 @@ static inline int vfs_dq_prealloc_space(
+
+ static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr)
+ {
++ if (dl_alloc_space(inode, nr))
++ return 1;
+ inode_add_bytes(inode, nr);
+ return 0;
+ }
+@@ -384,22 +412,28 @@ static inline int vfs_dq_alloc_space(str
+
+ static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
+ {
++ if (dl_reserve_space(inode, nr))
++ return 1;
+ return 0;
+ }
+
+ static inline int vfs_dq_claim_space(struct inode *inode, qsize_t nr)
+ {
++ if (dl_claim_space(inode, nr))
++ return 1;
+ return vfs_dq_alloc_space(inode, nr);
+ }
+
+ static inline
+ int vfs_dq_release_reservation_space(struct inode *inode, qsize_t nr)
+ {
++ dl_release_space(inode, nr);
+ return 0;
+ }
+
+ static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
+ {
++ dl_free_space(inode, nr);
+ inode_sub_bytes(inode, nr);
+ }
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/reboot.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/reboot.h
+--- linux-2.6.32.1/include/linux/reboot.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/reboot.h 2009-12-03 22:06:59.000000000 +0100
+@@ -33,6 +33,7 @@
+ #define LINUX_REBOOT_CMD_RESTART2 0xA1B2C3D4
+ #define LINUX_REBOOT_CMD_SW_SUSPEND 0xD000FCE2
+ #define LINUX_REBOOT_CMD_KEXEC 0x45584543
++#define LINUX_REBOOT_CMD_OOM 0xDEADBEEF
+
+
+ #ifdef __KERNEL__
+diff -NurpP --minimal linux-2.6.32.1/include/linux/reiserfs_fs.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/reiserfs_fs.h
+--- linux-2.6.32.1/include/linux/reiserfs_fs.h 2009-09-10 15:26:26.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/reiserfs_fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -899,6 +899,11 @@ struct stat_data_v1 {
+ #define REISERFS_COMPR_FL FS_COMPR_FL
+ #define REISERFS_NOTAIL_FL FS_NOTAIL_FL
+
++/* unfortunately reiserfs sdattr is only 16 bit */
++#define REISERFS_IXUNLINK_FL (FS_IXUNLINK_FL >> 16)
++#define REISERFS_BARRIER_FL (FS_BARRIER_FL >> 16)
++#define REISERFS_COW_FL (FS_COW_FL >> 16)
++
+ /* persistent flags that file inherits from the parent directory */
+ #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL | \
+ REISERFS_SYNC_FL | \
+@@ -908,6 +913,9 @@ struct stat_data_v1 {
+ REISERFS_COMPR_FL | \
+ REISERFS_NOTAIL_FL )
+
++#define REISERFS_FL_USER_VISIBLE 0x80FF
++#define REISERFS_FL_USER_MODIFIABLE 0x80FF
++
+ /* Stat Data on disk (reiserfs version of UFS disk inode minus the
+ address blocks) */
+ struct stat_data {
+@@ -1989,6 +1997,7 @@ static inline void reiserfs_update_sd(st
+ void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode);
+ void i_attrs_to_sd_attrs(struct inode *inode, __u16 * sd_attrs);
+ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr);
++int reiserfs_sync_flags(struct inode *inode, int, int);
+
+ /* namei.c */
+ void set_de_name_and_namelen(struct reiserfs_dir_entry *de);
+diff -NurpP --minimal linux-2.6.32.1/include/linux/reiserfs_fs_sb.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/reiserfs_fs_sb.h
+--- linux-2.6.32.1/include/linux/reiserfs_fs_sb.h 2009-09-10 15:26:26.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/reiserfs_fs_sb.h 2009-12-03 20:04:56.000000000 +0100
+@@ -456,6 +456,7 @@ enum reiserfs_mount_options {
+ REISERFS_EXPOSE_PRIVROOT,
+ REISERFS_BARRIER_NONE,
+ REISERFS_BARRIER_FLUSH,
++ REISERFS_TAGGED,
+
+ /* Actions on error */
+ REISERFS_ERROR_PANIC,
+diff -NurpP --minimal linux-2.6.32.1/include/linux/sched.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/sched.h
+--- linux-2.6.32.1/include/linux/sched.h 2009-12-14 21:29:46.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/sched.h 2009-12-14 22:20:55.000000000 +0100
+@@ -390,25 +390,28 @@ extern void arch_unmap_area_topdown(stru
+ * The mm counters are not protected by its page_table_lock,
+ * so must be incremented atomically.
+ */
+-#define set_mm_counter(mm, member, value) atomic_long_set(&(mm)->_##member, value)
+-#define get_mm_counter(mm, member) ((unsigned long)atomic_long_read(&(mm)->_##member))
+-#define add_mm_counter(mm, member, value) atomic_long_add(value, &(mm)->_##member)
+-#define inc_mm_counter(mm, member) atomic_long_inc(&(mm)->_##member)
+-#define dec_mm_counter(mm, member) atomic_long_dec(&(mm)->_##member)
++#define __set_mm_counter(mm, member, value) \
++ atomic_long_set(&(mm)->_##member, value)
++#define get_mm_counter(mm, member) \
++ ((unsigned long)atomic_long_read(&(mm)->_##member))
+
+ #else /* !USE_SPLIT_PTLOCKS */
+ /*
+ * The mm counters are protected by its page_table_lock,
+ * so can be incremented directly.
+ */
+-#define set_mm_counter(mm, member, value) (mm)->_##member = (value)
++#define __set_mm_counter(mm, member, value) (mm)->_##member = (value)
+ #define get_mm_counter(mm, member) ((mm)->_##member)
+-#define add_mm_counter(mm, member, value) (mm)->_##member += (value)
+-#define inc_mm_counter(mm, member) (mm)->_##member++
+-#define dec_mm_counter(mm, member) (mm)->_##member--
+
+ #endif /* !USE_SPLIT_PTLOCKS */
+
++#define set_mm_counter(mm, member, value) \
++ vx_ ## member ## pages_sub((mm), (get_mm_counter(mm, member) - value))
++#define add_mm_counter(mm, member, value) \
++ vx_ ## member ## pages_add((mm), (value))
++#define inc_mm_counter(mm, member) vx_ ## member ## pages_inc((mm))
++#define dec_mm_counter(mm, member) vx_ ## member ## pages_dec((mm))
++
+ #define get_mm_rss(mm) \
+ (get_mm_counter(mm, file_rss) + get_mm_counter(mm, anon_rss))
+ #define update_hiwater_rss(mm) do { \
+@@ -1183,6 +1186,12 @@ struct sched_entity {
+ u64 nr_wakeups_affine_attempts;
+ u64 nr_wakeups_passive;
+ u64 nr_wakeups_idle;
++#ifdef CONFIG_CFS_HARD_LIMITS
++ u64 throttle_start;
++ u64 throttle_max;
++ u64 throttle_count;
++ u64 throttle_sum;
++#endif
+ #endif
+
+ #ifdef CONFIG_FAIR_GROUP_SCHED
+@@ -1393,6 +1402,14 @@ struct task_struct {
+ #endif
+ seccomp_t seccomp;
+
++/* vserver context data */
++ struct vx_info *vx_info;
++ struct nx_info *nx_info;
++
++ xid_t xid;
++ nid_t nid;
++ tag_t tag;
++
+ /* Thread group tracking */
+ u32 parent_exec_id;
+ u32 self_exec_id;
+@@ -1618,6 +1635,11 @@ struct pid_namespace;
+ pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
+ struct pid_namespace *ns);
+
++#include <linux/vserver/base.h>
++#include <linux/vserver/context.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/pid.h>
++
+ static inline pid_t task_pid_nr(struct task_struct *tsk)
+ {
+ return tsk->pid;
+@@ -1631,7 +1653,8 @@ static inline pid_t task_pid_nr_ns(struc
+
+ static inline pid_t task_pid_vnr(struct task_struct *tsk)
+ {
+- return __task_pid_nr_ns(tsk, PIDTYPE_PID, NULL);
++ // return __task_pid_nr_ns(tsk, PIDTYPE_PID, NULL);
++ return vx_map_pid(__task_pid_nr_ns(tsk, PIDTYPE_PID, NULL));
+ }
+
+
+@@ -1644,7 +1667,7 @@ pid_t task_tgid_nr_ns(struct task_struct
+
+ static inline pid_t task_tgid_vnr(struct task_struct *tsk)
+ {
+- return pid_vnr(task_tgid(tsk));
++ return vx_map_tgid(pid_vnr(task_tgid(tsk)));
+ }
+
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/shmem_fs.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/shmem_fs.h
+--- linux-2.6.32.1/include/linux/shmem_fs.h 2009-12-03 20:02:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/shmem_fs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -8,6 +8,9 @@
+
+ #define SHMEM_NR_DIRECT 16
+
++#define TMPFS_SUPER_MAGIC 0x01021994
++
++
+ struct shmem_inode_info {
+ spinlock_t lock;
+ unsigned long flags;
+diff -NurpP --minimal linux-2.6.32.1/include/linux/stat.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/stat.h
+--- linux-2.6.32.1/include/linux/stat.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/stat.h 2009-12-03 20:04:56.000000000 +0100
+@@ -66,6 +66,7 @@ struct kstat {
+ unsigned int nlink;
+ uid_t uid;
+ gid_t gid;
++ tag_t tag;
+ dev_t rdev;
+ loff_t size;
+ struct timespec atime;
+diff -NurpP --minimal linux-2.6.32.1/include/linux/sunrpc/auth.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/sunrpc/auth.h
+--- linux-2.6.32.1/include/linux/sunrpc/auth.h 2009-12-03 20:02:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/sunrpc/auth.h 2009-12-03 20:04:56.000000000 +0100
+@@ -25,6 +25,7 @@
+ struct auth_cred {
+ uid_t uid;
+ gid_t gid;
++ tag_t tag;
+ struct group_info *group_info;
+ unsigned char machine_cred : 1;
+ };
+diff -NurpP --minimal linux-2.6.32.1/include/linux/sunrpc/clnt.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/sunrpc/clnt.h
+--- linux-2.6.32.1/include/linux/sunrpc/clnt.h 2009-12-03 20:02:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/sunrpc/clnt.h 2009-12-03 20:04:56.000000000 +0100
+@@ -49,7 +49,8 @@ struct rpc_clnt {
+ unsigned int cl_softrtry : 1,/* soft timeouts */
+ cl_discrtry : 1,/* disconnect before retry */
+ cl_autobind : 1,/* use getport() */
+- cl_chatty : 1;/* be verbose */
++ cl_chatty : 1,/* be verbose */
++ cl_tag : 1;/* context tagging */
+
+ struct rpc_rtt * cl_rtt; /* RTO estimator data */
+ const struct rpc_timeout *cl_timeout; /* Timeout strategy */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/syscalls.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/syscalls.h
+--- linux-2.6.32.1/include/linux/syscalls.h 2009-12-03 20:02:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/syscalls.h 2009-12-03 20:04:56.000000000 +0100
+@@ -546,6 +546,8 @@ asmlinkage long sys_symlink(const char _
+ asmlinkage long sys_unlink(const char __user *pathname);
+ asmlinkage long sys_rename(const char __user *oldname,
+ const char __user *newname);
++asmlinkage long sys_copyfile(const char __user *from, const char __user *to,
++ umode_t mode);
+ asmlinkage long sys_chmod(const char __user *filename, mode_t mode);
+ asmlinkage long sys_fchmod(unsigned int fd, mode_t mode);
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/sysctl.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/sysctl.h
+--- linux-2.6.32.1/include/linux/sysctl.h 2009-12-03 20:02:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/sysctl.h 2009-12-03 20:04:56.000000000 +0100
+@@ -69,6 +69,7 @@ enum
+ CTL_ABI=9, /* Binary emulation */
+ CTL_CPU=10, /* CPU stuff (speed scaling, etc) */
+ CTL_ARLAN=254, /* arlan wireless driver */
++ CTL_VSERVER=4242, /* Linux-VServer debug */
+ CTL_S390DBF=5677, /* s390 debug */
+ CTL_SUNRPC=7249, /* sunrpc debug */
+ CTL_PM=9899, /* frv power management */
+@@ -103,6 +104,7 @@ enum
+
+ KERN_PANIC=15, /* int: panic timeout */
+ KERN_REALROOTDEV=16, /* real root device to mount after initrd */
++ KERN_VSHELPER=17, /* string: path to vshelper policy agent */
+
+ KERN_SPARC_REBOOT=21, /* reboot command on Sparc */
+ KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/sysfs.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/sysfs.h
+--- linux-2.6.32.1/include/linux/sysfs.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/sysfs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -17,6 +17,8 @@
+ #include <linux/list.h>
+ #include <asm/atomic.h>
+
++#define SYSFS_SUPER_MAGIC 0x62656572
++
+ struct kobject;
+ struct module;
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/time.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/time.h
+--- linux-2.6.32.1/include/linux/time.h 2009-12-03 20:02:56.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/time.h 2009-12-03 20:04:56.000000000 +0100
+@@ -237,6 +237,9 @@ static __always_inline void timespec_add
+ a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns);
+ a->tv_nsec = ns;
+ }
++
++#include <linux/vs_time.h>
++
+ #endif /* __KERNEL__ */
+
+ #define NFDBITS __NFDBITS
+diff -NurpP --minimal linux-2.6.32.1/include/linux/types.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/types.h
+--- linux-2.6.32.1/include/linux/types.h 2009-09-10 15:26:26.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/types.h 2009-12-03 20:04:56.000000000 +0100
+@@ -37,6 +37,9 @@ typedef __kernel_uid32_t uid_t;
+ typedef __kernel_gid32_t gid_t;
+ typedef __kernel_uid16_t uid16_t;
+ typedef __kernel_gid16_t gid16_t;
++typedef unsigned int xid_t;
++typedef unsigned int nid_t;
++typedef unsigned int tag_t;
+
+ typedef unsigned long uintptr_t;
+
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vroot.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vroot.h
+--- linux-2.6.32.1/include/linux/vroot.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vroot.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,51 @@
++
++/*
++ * include/linux/vroot.h
++ *
++ * written by Herbert Pötzl, 9/11/2002
++ * ported to 2.6 by Herbert Pötzl, 30/12/2004
++ *
++ * Copyright (C) 2002-2007 by Herbert Pötzl.
++ * Redistribution of this file is permitted under the
++ * GNU General Public License.
++ */
++
++#ifndef _LINUX_VROOT_H
++#define _LINUX_VROOT_H
++
++
++#ifdef __KERNEL__
++
++/* Possible states of device */
++enum {
++ Vr_unbound,
++ Vr_bound,
++};
++
++struct vroot_device {
++ int vr_number;
++ int vr_refcnt;
++
++ struct semaphore vr_ctl_mutex;
++ struct block_device *vr_device;
++ int vr_state;
++};
++
++
++typedef struct block_device *(vroot_grb_func)(struct block_device *);
++
++extern int register_vroot_grb(vroot_grb_func *);
++extern int unregister_vroot_grb(vroot_grb_func *);
++
++#endif /* __KERNEL__ */
++
++#define MAX_VROOT_DEFAULT 8
++
++/*
++ * IOCTL commands --- we will commandeer 0x56 ('V')
++ */
++
++#define VROOT_SET_DEV 0x5600
++#define VROOT_CLR_DEV 0x5601
++
++#endif /* _LINUX_VROOT_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_base.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_base.h
+--- linux-2.6.32.1/include/linux/vs_base.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_base.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,10 @@
++#ifndef _VS_BASE_H
++#define _VS_BASE_H
++
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/debug.h"
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_context.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_context.h
+--- linux-2.6.32.1/include/linux/vs_context.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_context.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,242 @@
++#ifndef _VS_CONTEXT_H
++#define _VS_CONTEXT_H
++
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/context.h"
++#include "vserver/history.h"
++#include "vserver/debug.h"
++
++#include <linux/sched.h>
++
++
++#define get_vx_info(i) __get_vx_info(i, __FILE__, __LINE__, __HERE__)
++
++static inline struct vx_info *__get_vx_info(struct vx_info *vxi,
++ const char *_file, int _line, void *_here)
++{
++ if (!vxi)
++ return NULL;
++
++ vxlprintk(VXD_CBIT(xid, 2), "get_vx_info(%p[#%d.%d])",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_get_vx_info(vxi, _here);
++
++ atomic_inc(&vxi->vx_usecnt);
++ return vxi;
++}
++
++
++extern void free_vx_info(struct vx_info *);
++
++#define put_vx_info(i) __put_vx_info(i, __FILE__, __LINE__, __HERE__)
++
++static inline void __put_vx_info(struct vx_info *vxi,
++ const char *_file, int _line, void *_here)
++{
++ if (!vxi)
++ return;
++
++ vxlprintk(VXD_CBIT(xid, 2), "put_vx_info(%p[#%d.%d])",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_put_vx_info(vxi, _here);
++
++ if (atomic_dec_and_test(&vxi->vx_usecnt))
++ free_vx_info(vxi);
++}
++
++
++#define init_vx_info(p, i) \
++ __init_vx_info(p, i, __FILE__, __LINE__, __HERE__)
++
++static inline void __init_vx_info(struct vx_info **vxp, struct vx_info *vxi,
++ const char *_file, int _line, void *_here)
++{
++ if (vxi) {
++ vxlprintk(VXD_CBIT(xid, 3),
++ "init_vx_info(%p[#%d.%d])",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_init_vx_info(vxi, vxp, _here);
++
++ atomic_inc(&vxi->vx_usecnt);
++ }
++ *vxp = vxi;
++}
++
++
++#define set_vx_info(p, i) \
++ __set_vx_info(p, i, __FILE__, __LINE__, __HERE__)
++
++static inline void __set_vx_info(struct vx_info **vxp, struct vx_info *vxi,
++ const char *_file, int _line, void *_here)
++{
++ struct vx_info *vxo;
++
++ if (!vxi)
++ return;
++
++ vxlprintk(VXD_CBIT(xid, 3), "set_vx_info(%p[#%d.%d])",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_set_vx_info(vxi, vxp, _here);
++
++ atomic_inc(&vxi->vx_usecnt);
++ vxo = xchg(vxp, vxi);
++ BUG_ON(vxo);
++}
++
++
++#define clr_vx_info(p) __clr_vx_info(p, __FILE__, __LINE__, __HERE__)
++
++static inline void __clr_vx_info(struct vx_info **vxp,
++ const char *_file, int _line, void *_here)
++{
++ struct vx_info *vxo;
++
++ vxo = xchg(vxp, NULL);
++ if (!vxo)
++ return;
++
++ vxlprintk(VXD_CBIT(xid, 3), "clr_vx_info(%p[#%d.%d])",
++ vxo, vxo ? vxo->vx_id : 0,
++ vxo ? atomic_read(&vxo->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_clr_vx_info(vxo, vxp, _here);
++
++ if (atomic_dec_and_test(&vxo->vx_usecnt))
++ free_vx_info(vxo);
++}
++
++
++#define claim_vx_info(v, p) \
++ __claim_vx_info(v, p, __FILE__, __LINE__, __HERE__)
++
++static inline void __claim_vx_info(struct vx_info *vxi,
++ struct task_struct *task,
++ const char *_file, int _line, void *_here)
++{
++ vxlprintk(VXD_CBIT(xid, 3), "claim_vx_info(%p[#%d.%d.%d]) %p",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ vxi ? atomic_read(&vxi->vx_tasks) : 0,
++ task, _file, _line);
++ __vxh_claim_vx_info(vxi, task, _here);
++
++ atomic_inc(&vxi->vx_tasks);
++}
++
++
++extern void unhash_vx_info(struct vx_info *);
++
++#define release_vx_info(v, p) \
++ __release_vx_info(v, p, __FILE__, __LINE__, __HERE__)
++
++static inline void __release_vx_info(struct vx_info *vxi,
++ struct task_struct *task,
++ const char *_file, int _line, void *_here)
++{
++ vxlprintk(VXD_CBIT(xid, 3), "release_vx_info(%p[#%d.%d.%d]) %p",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ vxi ? atomic_read(&vxi->vx_tasks) : 0,
++ task, _file, _line);
++ __vxh_release_vx_info(vxi, task, _here);
++
++ might_sleep();
++
++ if (atomic_dec_and_test(&vxi->vx_tasks))
++ unhash_vx_info(vxi);
++}
++
++
++#define task_get_vx_info(p) \
++ __task_get_vx_info(p, __FILE__, __LINE__, __HERE__)
++
++static inline struct vx_info *__task_get_vx_info(struct task_struct *p,
++ const char *_file, int _line, void *_here)
++{
++ struct vx_info *vxi;
++
++ task_lock(p);
++ vxlprintk(VXD_CBIT(xid, 5), "task_get_vx_info(%p)",
++ p, _file, _line);
++ vxi = __get_vx_info(p->vx_info, _file, _line, _here);
++ task_unlock(p);
++ return vxi;
++}
++
++
++static inline void __wakeup_vx_info(struct vx_info *vxi)
++{
++ if (waitqueue_active(&vxi->vx_wait))
++ wake_up_interruptible(&vxi->vx_wait);
++}
++
++
++#define enter_vx_info(v, s) __enter_vx_info(v, s, __FILE__, __LINE__)
++
++static inline void __enter_vx_info(struct vx_info *vxi,
++ struct vx_info_save *vxis, const char *_file, int _line)
++{
++ vxlprintk(VXD_CBIT(xid, 5), "enter_vx_info(%p[#%d],%p) %p[#%d,%p]",
++ vxi, vxi ? vxi->vx_id : 0, vxis, current,
++ current->xid, current->vx_info, _file, _line);
++ vxis->vxi = xchg(¤t->vx_info, vxi);
++ vxis->xid = current->xid;
++ current->xid = vxi ? vxi->vx_id : 0;
++}
++
++#define leave_vx_info(s) __leave_vx_info(s, __FILE__, __LINE__)
++
++static inline void __leave_vx_info(struct vx_info_save *vxis,
++ const char *_file, int _line)
++{
++ vxlprintk(VXD_CBIT(xid, 5), "leave_vx_info(%p[#%d,%p]) %p[#%d,%p]",
++ vxis, vxis->xid, vxis->vxi, current,
++ current->xid, current->vx_info, _file, _line);
++ (void)xchg(¤t->vx_info, vxis->vxi);
++ current->xid = vxis->xid;
++}
++
++
++static inline void __enter_vx_admin(struct vx_info_save *vxis)
++{
++ vxis->vxi = xchg(¤t->vx_info, NULL);
++ vxis->xid = xchg(¤t->xid, (xid_t)0);
++}
++
++static inline void __leave_vx_admin(struct vx_info_save *vxis)
++{
++ (void)xchg(¤t->xid, vxis->xid);
++ (void)xchg(¤t->vx_info, vxis->vxi);
++}
++
++#define task_is_init(p) \
++ __task_is_init(p, __FILE__, __LINE__, __HERE__)
++
++static inline int __task_is_init(struct task_struct *p,
++ const char *_file, int _line, void *_here)
++{
++ int is_init = is_global_init(p);
++
++ task_lock(p);
++ if (p->vx_info)
++ is_init = p->vx_info->vx_initpid == p->pid;
++ task_unlock(p);
++ return is_init;
++}
++
++extern void exit_vx_info(struct task_struct *, int);
++extern void exit_vx_info_early(struct task_struct *, int);
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_cowbl.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_cowbl.h
+--- linux-2.6.32.1/include/linux/vs_cowbl.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_cowbl.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,47 @@
++#ifndef _VS_COWBL_H
++#define _VS_COWBL_H
++
++#include <linux/fs.h>
++#include <linux/dcache.h>
++#include <linux/namei.h>
++
++extern struct dentry *cow_break_link(const char *pathname);
++
++static inline int cow_check_and_break(struct path *path)
++{
++ struct inode *inode = path->dentry->d_inode;
++ int error = 0;
++
++ /* do we need this check? */
++ if (IS_RDONLY(inode))
++ return -EROFS;
++
++ if (IS_COW(inode)) {
++ if (IS_COW_LINK(inode)) {
++ struct dentry *new_dentry, *old_dentry = path->dentry;
++ char *pp, *buf;
++
++ buf = kmalloc(PATH_MAX, GFP_KERNEL);
++ if (!buf) {
++ return -ENOMEM;
++ }
++ pp = d_path(path, buf, PATH_MAX);
++ new_dentry = cow_break_link(pp);
++ kfree(buf);
++ if (!IS_ERR(new_dentry)) {
++ path->dentry = new_dentry;
++ dput(old_dentry);
++ } else
++ error = PTR_ERR(new_dentry);
++ } else {
++ inode->i_flags &= ~(S_IXUNLINK | S_IMMUTABLE);
++ inode->i_ctime = CURRENT_TIME;
++ mark_inode_dirty(inode);
++ }
++ }
++ return error;
++}
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_cvirt.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_cvirt.h
+--- linux-2.6.32.1/include/linux/vs_cvirt.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_cvirt.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,50 @@
++#ifndef _VS_CVIRT_H
++#define _VS_CVIRT_H
++
++#include "vserver/cvirt.h"
++#include "vserver/context.h"
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/debug.h"
++
++
++static inline void vx_activate_task(struct task_struct *p)
++{
++ struct vx_info *vxi;
++
++ if ((vxi = p->vx_info)) {
++ vx_update_load(vxi);
++ atomic_inc(&vxi->cvirt.nr_running);
++ }
++}
++
++static inline void vx_deactivate_task(struct task_struct *p)
++{
++ struct vx_info *vxi;
++
++ if ((vxi = p->vx_info)) {
++ vx_update_load(vxi);
++ atomic_dec(&vxi->cvirt.nr_running);
++ }
++}
++
++static inline void vx_uninterruptible_inc(struct task_struct *p)
++{
++ struct vx_info *vxi;
++
++ if ((vxi = p->vx_info))
++ atomic_inc(&vxi->cvirt.nr_uninterruptible);
++}
++
++static inline void vx_uninterruptible_dec(struct task_struct *p)
++{
++ struct vx_info *vxi;
++
++ if ((vxi = p->vx_info))
++ atomic_dec(&vxi->cvirt.nr_uninterruptible);
++}
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_device.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_device.h
+--- linux-2.6.32.1/include/linux/vs_device.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_device.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,45 @@
++#ifndef _VS_DEVICE_H
++#define _VS_DEVICE_H
++
++#include "vserver/base.h"
++#include "vserver/device.h"
++#include "vserver/debug.h"
++
++
++#ifdef CONFIG_VSERVER_DEVICE
++
++int vs_map_device(struct vx_info *, dev_t, dev_t *, umode_t);
++
++#define vs_device_perm(v, d, m, p) \
++ ((vs_map_device(current_vx_info(), d, NULL, m) & (p)) == (p))
++
++#else
++
++static inline
++int vs_map_device(struct vx_info *vxi,
++ dev_t device, dev_t *target, umode_t mode)
++{
++ if (target)
++ *target = device;
++ return ~0;
++}
++
++#define vs_device_perm(v, d, m, p) ((p) == (p))
++
++#endif
++
++
++#define vs_map_chrdev(d, t, p) \
++ ((vs_map_device(current_vx_info(), d, t, S_IFCHR) & (p)) == (p))
++#define vs_map_blkdev(d, t, p) \
++ ((vs_map_device(current_vx_info(), d, t, S_IFBLK) & (p)) == (p))
++
++#define vs_chrdev_perm(d, p) \
++ vs_device_perm(current_vx_info(), d, S_IFCHR, p)
++#define vs_blkdev_perm(d, p) \
++ vs_device_perm(current_vx_info(), d, S_IFBLK, p)
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_dlimit.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_dlimit.h
+--- linux-2.6.32.1/include/linux/vs_dlimit.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_dlimit.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,216 @@
++#ifndef _VS_DLIMIT_H
++#define _VS_DLIMIT_H
++
++#include <linux/fs.h>
++
++#include "vserver/dlimit.h"
++#include "vserver/base.h"
++#include "vserver/debug.h"
++
++
++#define get_dl_info(i) __get_dl_info(i, __FILE__, __LINE__)
++
++static inline struct dl_info *__get_dl_info(struct dl_info *dli,
++ const char *_file, int _line)
++{
++ if (!dli)
++ return NULL;
++ vxlprintk(VXD_CBIT(dlim, 4), "get_dl_info(%p[#%d.%d])",
++ dli, dli ? dli->dl_tag : 0,
++ dli ? atomic_read(&dli->dl_usecnt) : 0,
++ _file, _line);
++ atomic_inc(&dli->dl_usecnt);
++ return dli;
++}
++
++
++#define free_dl_info(i) \
++ call_rcu(&(i)->dl_rcu, rcu_free_dl_info)
++
++#define put_dl_info(i) __put_dl_info(i, __FILE__, __LINE__)
++
++static inline void __put_dl_info(struct dl_info *dli,
++ const char *_file, int _line)
++{
++ if (!dli)
++ return;
++ vxlprintk(VXD_CBIT(dlim, 4), "put_dl_info(%p[#%d.%d])",
++ dli, dli ? dli->dl_tag : 0,
++ dli ? atomic_read(&dli->dl_usecnt) : 0,
++ _file, _line);
++ if (atomic_dec_and_test(&dli->dl_usecnt))
++ free_dl_info(dli);
++}
++
++
++#define __dlimit_char(d) ((d) ? '*' : ' ')
++
++static inline int __dl_alloc_space(struct super_block *sb,
++ tag_t tag, dlsize_t nr, const char *file, int line)
++{
++ struct dl_info *dli = NULL;
++ int ret = 0;
++
++ if (nr == 0)
++ goto out;
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ goto out;
++
++ spin_lock(&dli->dl_lock);
++ ret = (dli->dl_space_used + nr > dli->dl_space_total);
++ if (!ret)
++ dli->dl_space_used += nr;
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++out:
++ vxlprintk(VXD_CBIT(dlim, 1),
++ "ALLOC (%p,#%d)%c %lld bytes (%d)",
++ sb, tag, __dlimit_char(dli), (long long)nr,
++ ret, file, line);
++ return ret;
++}
++
++static inline void __dl_free_space(struct super_block *sb,
++ tag_t tag, dlsize_t nr, const char *_file, int _line)
++{
++ struct dl_info *dli = NULL;
++
++ if (nr == 0)
++ goto out;
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ goto out;
++
++ spin_lock(&dli->dl_lock);
++ if (dli->dl_space_used > nr)
++ dli->dl_space_used -= nr;
++ else
++ dli->dl_space_used = 0;
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++out:
++ vxlprintk(VXD_CBIT(dlim, 1),
++ "FREE (%p,#%d)%c %lld bytes",
++ sb, tag, __dlimit_char(dli), (long long)nr,
++ _file, _line);
++}
++
++static inline int __dl_alloc_inode(struct super_block *sb,
++ tag_t tag, const char *_file, int _line)
++{
++ struct dl_info *dli;
++ int ret = 0;
++
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ goto out;
++
++ spin_lock(&dli->dl_lock);
++ ret = (dli->dl_inodes_used >= dli->dl_inodes_total);
++ if (!ret)
++ dli->dl_inodes_used++;
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++out:
++ vxlprintk(VXD_CBIT(dlim, 0),
++ "ALLOC (%p,#%d)%c inode (%d)",
++ sb, tag, __dlimit_char(dli), ret, _file, _line);
++ return ret;
++}
++
++static inline void __dl_free_inode(struct super_block *sb,
++ tag_t tag, const char *_file, int _line)
++{
++ struct dl_info *dli;
++
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ goto out;
++
++ spin_lock(&dli->dl_lock);
++ if (dli->dl_inodes_used > 1)
++ dli->dl_inodes_used--;
++ else
++ dli->dl_inodes_used = 0;
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++out:
++ vxlprintk(VXD_CBIT(dlim, 0),
++ "FREE (%p,#%d)%c inode",
++ sb, tag, __dlimit_char(dli), _file, _line);
++}
++
++static inline void __dl_adjust_block(struct super_block *sb, tag_t tag,
++ unsigned long long *free_blocks, unsigned long long *root_blocks,
++ const char *_file, int _line)
++{
++ struct dl_info *dli;
++ uint64_t broot, bfree;
++
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ return;
++
++ spin_lock(&dli->dl_lock);
++ broot = (dli->dl_space_total -
++ (dli->dl_space_total >> 10) * dli->dl_nrlmult)
++ >> sb->s_blocksize_bits;
++ bfree = (dli->dl_space_total - dli->dl_space_used)
++ >> sb->s_blocksize_bits;
++ spin_unlock(&dli->dl_lock);
++
++ vxlprintk(VXD_CBIT(dlim, 2),
++ "ADJUST: %lld,%lld on %lld,%lld [mult=%d]",
++ (long long)bfree, (long long)broot,
++ *free_blocks, *root_blocks, dli->dl_nrlmult,
++ _file, _line);
++ if (free_blocks) {
++ if (*free_blocks > bfree)
++ *free_blocks = bfree;
++ }
++ if (root_blocks) {
++ if (*root_blocks > broot)
++ *root_blocks = broot;
++ }
++ put_dl_info(dli);
++}
++
++#define dl_prealloc_space(in, bytes) \
++ __dl_alloc_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++#define dl_alloc_space(in, bytes) \
++ __dl_alloc_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++#define dl_reserve_space(in, bytes) \
++ __dl_alloc_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++#define dl_claim_space(in, bytes) (0)
++
++#define dl_release_space(in, bytes) \
++ __dl_free_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++#define dl_free_space(in, bytes) \
++ __dl_free_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++
++
++#define dl_alloc_inode(in) \
++ __dl_alloc_inode((in)->i_sb, (in)->i_tag, __FILE__, __LINE__ )
++
++#define dl_free_inode(in) \
++ __dl_free_inode((in)->i_sb, (in)->i_tag, __FILE__, __LINE__ )
++
++
++#define dl_adjust_block(sb, tag, fb, rb) \
++ __dl_adjust_block(sb, tag, fb, rb, __FILE__, __LINE__ )
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/base.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/base.h
+--- linux-2.6.32.1/include/linux/vserver/base.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/base.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,170 @@
++#ifndef _VX_BASE_H
++#define _VX_BASE_H
++
++
++/* context state changes */
++
++enum {
++ VSC_STARTUP = 1,
++ VSC_SHUTDOWN,
++
++ VSC_NETUP,
++ VSC_NETDOWN,
++};
++
++
++
++#define vx_task_xid(t) ((t)->xid)
++
++#define vx_current_xid() vx_task_xid(current)
++
++#define current_vx_info() (current->vx_info)
++
++
++#define nx_task_nid(t) ((t)->nid)
++
++#define nx_current_nid() nx_task_nid(current)
++
++#define current_nx_info() (current->nx_info)
++
++
++/* generic flag merging */
++
++#define vs_check_flags(v, m, f) (((v) & (m)) ^ (f))
++
++#define vs_mask_flags(v, f, m) (((v) & ~(m)) | ((f) & (m)))
++
++#define vs_mask_mask(v, f, m) (((v) & ~(m)) | ((v) & (f) & (m)))
++
++#define vs_check_bit(v, n) ((v) & (1LL << (n)))
++
++
++/* context flags */
++
++#define __vx_flags(v) ((v) ? (v)->vx_flags : 0)
++
++#define vx_current_flags() __vx_flags(current_vx_info())
++
++#define vx_info_flags(v, m, f) \
++ vs_check_flags(__vx_flags(v), m, f)
++
++#define task_vx_flags(t, m, f) \
++ ((t) && vx_info_flags((t)->vx_info, m, f))
++
++#define vx_flags(m, f) vx_info_flags(current_vx_info(), m, f)
++
++
++/* context caps */
++
++#define __vx_ccaps(v) ((v) ? (v)->vx_ccaps : 0)
++
++#define vx_current_ccaps() __vx_ccaps(current_vx_info())
++
++#define vx_info_ccaps(v, c) (__vx_ccaps(v) & (c))
++
++#define vx_ccaps(c) vx_info_ccaps(current_vx_info(), (c))
++
++
++
++/* network flags */
++
++#define __nx_flags(n) ((n) ? (n)->nx_flags : 0)
++
++#define nx_current_flags() __nx_flags(current_nx_info())
++
++#define nx_info_flags(n, m, f) \
++ vs_check_flags(__nx_flags(n), m, f)
++
++#define task_nx_flags(t, m, f) \
++ ((t) && nx_info_flags((t)->nx_info, m, f))
++
++#define nx_flags(m, f) nx_info_flags(current_nx_info(), m, f)
++
++
++/* network caps */
++
++#define __nx_ncaps(n) ((n) ? (n)->nx_ncaps : 0)
++
++#define nx_current_ncaps() __nx_ncaps(current_nx_info())
++
++#define nx_info_ncaps(n, c) (__nx_ncaps(n) & (c))
++
++#define nx_ncaps(c) nx_info_ncaps(current_nx_info(), c)
++
++
++/* context mask capabilities */
++
++#define __vx_mcaps(v) ((v) ? (v)->vx_ccaps >> 32UL : ~0 )
++
++#define vx_info_mcaps(v, c) (__vx_mcaps(v) & (c))
++
++#define vx_mcaps(c) vx_info_mcaps(current_vx_info(), c)
++
++
++/* context bcap mask */
++
++#define __vx_bcaps(v) ((v)->vx_bcaps)
++
++#define vx_current_bcaps() __vx_bcaps(current_vx_info())
++
++
++/* mask given bcaps */
++
++#define vx_info_mbcaps(v, c) ((v) ? cap_intersect(__vx_bcaps(v), c) : c)
++
++#define vx_mbcaps(c) vx_info_mbcaps(current_vx_info(), c)
++
++
++/* masked cap_bset */
++
++#define vx_info_cap_bset(v) vx_info_mbcaps(v, current->cap_bset)
++
++#define vx_current_cap_bset() vx_info_cap_bset(current_vx_info())
++
++#if 0
++#define vx_info_mbcap(v, b) \
++ (!vx_info_flags(v, VXF_STATE_SETUP, 0) ? \
++ vx_info_bcaps(v, b) : (b))
++
++#define task_vx_mbcap(t, b) \
++ vx_info_mbcap((t)->vx_info, (t)->b)
++
++#define vx_mbcap(b) task_vx_mbcap(current, b)
++#endif
++
++#define vx_cap_raised(v, c, f) cap_raised(vx_info_mbcaps(v, c), f)
++
++#define vx_capable(b, c) (capable(b) || \
++ (cap_raised(current_cap(), b) && vx_ccaps(c)))
++
++#define nx_capable(b, c) (capable(b) || \
++ (cap_raised(current_cap(), b) && nx_ncaps(c)))
++
++#define vx_task_initpid(t, n) \
++ ((t)->vx_info && \
++ ((t)->vx_info->vx_initpid == (n)))
++
++#define vx_current_initpid(n) vx_task_initpid(current, n)
++
++
++/* context unshare mask */
++
++#define __vx_umask(v) ((v)->vx_umask)
++
++#define vx_current_umask() __vx_umask(current_vx_info())
++
++#define vx_can_unshare(b, f) (capable(b) || \
++ (cap_raised(current_cap(), b) && \
++ !((f) & ~vx_current_umask())))
++
++
++#define __vx_state(v) ((v) ? ((v)->vx_state) : 0)
++
++#define vx_info_state(v, m) (__vx_state(v) & (m))
++
++
++#define __nx_state(n) ((n) ? ((n)->nx_state) : 0)
++
++#define nx_info_state(n, m) (__nx_state(n) & (m))
++
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/cacct_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cacct_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/cacct_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cacct_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,23 @@
++#ifndef _VX_CACCT_CMD_H
++#define _VX_CACCT_CMD_H
++
++
++/* virtual host info name commands */
++
++#define VCMD_sock_stat VC_CMD(VSTAT, 5, 0)
++
++struct vcmd_sock_stat_v0 {
++ uint32_t field;
++ uint32_t count[3];
++ uint64_t total[3];
++};
++
++
++#ifdef __KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_sock_stat(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CACCT_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/cacct_def.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cacct_def.h
+--- linux-2.6.32.1/include/linux/vserver/cacct_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cacct_def.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,43 @@
++#ifndef _VX_CACCT_DEF_H
++#define _VX_CACCT_DEF_H
++
++#include <asm/atomic.h>
++#include <linux/vserver/cacct.h>
++
++
++struct _vx_sock_acc {
++ atomic_long_t count;
++ atomic_long_t total;
++};
++
++/* context sub struct */
++
++struct _vx_cacct {
++ struct _vx_sock_acc sock[VXA_SOCK_SIZE][3];
++ atomic_t slab[8];
++ atomic_t page[6][8];
++};
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++static inline void __dump_vx_cacct(struct _vx_cacct *cacct)
++{
++ int i, j;
++
++ printk("\t_vx_cacct:");
++ for (i = 0; i < 6; i++) {
++ struct _vx_sock_acc *ptr = cacct->sock[i];
++
++ printk("\t [%d] =", i);
++ for (j = 0; j < 3; j++) {
++ printk(" [%d] = %8lu, %8lu", j,
++ atomic_long_read(&ptr[j].count),
++ atomic_long_read(&ptr[j].total));
++ }
++ printk("\n");
++ }
++}
++
++#endif
++
++#endif /* _VX_CACCT_DEF_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/cacct.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cacct.h
+--- linux-2.6.32.1/include/linux/vserver/cacct.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cacct.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,15 @@
++#ifndef _VX_CACCT_H
++#define _VX_CACCT_H
++
++
++enum sock_acc_field {
++ VXA_SOCK_UNSPEC = 0,
++ VXA_SOCK_UNIX,
++ VXA_SOCK_INET,
++ VXA_SOCK_INET6,
++ VXA_SOCK_PACKET,
++ VXA_SOCK_OTHER,
++ VXA_SOCK_SIZE /* array size */
++};
++
++#endif /* _VX_CACCT_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/cacct_int.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cacct_int.h
+--- linux-2.6.32.1/include/linux/vserver/cacct_int.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cacct_int.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,21 @@
++#ifndef _VX_CACCT_INT_H
++#define _VX_CACCT_INT_H
++
++
++#ifdef __KERNEL__
++
++static inline
++unsigned long vx_sock_count(struct _vx_cacct *cacct, int type, int pos)
++{
++ return atomic_long_read(&cacct->sock[type][pos].count);
++}
++
++
++static inline
++unsigned long vx_sock_total(struct _vx_cacct *cacct, int type, int pos)
++{
++ return atomic_long_read(&cacct->sock[type][pos].total);
++}
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CACCT_INT_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/check.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/check.h
+--- linux-2.6.32.1/include/linux/vserver/check.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/check.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,89 @@
++#ifndef _VS_CHECK_H
++#define _VS_CHECK_H
++
++
++#define MAX_S_CONTEXT 65535 /* Arbitrary limit */
++
++#ifdef CONFIG_VSERVER_DYNAMIC_IDS
++#define MIN_D_CONTEXT 49152 /* dynamic contexts start here */
++#else
++#define MIN_D_CONTEXT 65536
++#endif
++
++/* check conditions */
++
++#define VS_ADMIN 0x0001
++#define VS_WATCH 0x0002
++#define VS_HIDE 0x0004
++#define VS_HOSTID 0x0008
++
++#define VS_IDENT 0x0010
++#define VS_EQUIV 0x0020
++#define VS_PARENT 0x0040
++#define VS_CHILD 0x0080
++
++#define VS_ARG_MASK 0x00F0
++
++#define VS_DYNAMIC 0x0100
++#define VS_STATIC 0x0200
++
++#define VS_ATR_MASK 0x0F00
++
++#ifdef CONFIG_VSERVER_PRIVACY
++#define VS_ADMIN_P (0)
++#define VS_WATCH_P (0)
++#else
++#define VS_ADMIN_P VS_ADMIN
++#define VS_WATCH_P VS_WATCH
++#endif
++
++#define VS_HARDIRQ 0x1000
++#define VS_SOFTIRQ 0x2000
++#define VS_IRQ 0x4000
++
++#define VS_IRQ_MASK 0xF000
++
++#include <linux/hardirq.h>
++
++/*
++ * check current context for ADMIN/WATCH and
++ * optionally against supplied argument
++ */
++static inline int __vs_check(int cid, int id, unsigned int mode)
++{
++ if (mode & VS_ARG_MASK) {
++ if ((mode & VS_IDENT) && (id == cid))
++ return 1;
++ }
++ if (mode & VS_ATR_MASK) {
++ if ((mode & VS_DYNAMIC) &&
++ (id >= MIN_D_CONTEXT) &&
++ (id <= MAX_S_CONTEXT))
++ return 1;
++ if ((mode & VS_STATIC) &&
++ (id > 1) && (id < MIN_D_CONTEXT))
++ return 1;
++ }
++ if (mode & VS_IRQ_MASK) {
++ if ((mode & VS_IRQ) && unlikely(in_interrupt()))
++ return 1;
++ if ((mode & VS_HARDIRQ) && unlikely(in_irq()))
++ return 1;
++ if ((mode & VS_SOFTIRQ) && unlikely(in_softirq()))
++ return 1;
++ }
++ return (((mode & VS_ADMIN) && (cid == 0)) ||
++ ((mode & VS_WATCH) && (cid == 1)) ||
++ ((mode & VS_HOSTID) && (id == 0)));
++}
++
++#define vx_check(c, m) __vs_check(vx_current_xid(), c, (m) | VS_IRQ)
++
++#define vx_weak_check(c, m) ((m) ? vx_check(c, m) : 1)
++
++
++#define nx_check(c, m) __vs_check(nx_current_nid(), c, m)
++
++#define nx_weak_check(c, m) ((m) ? nx_check(c, m) : 1)
++
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/context_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/context_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/context_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/context_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,145 @@
++#ifndef _VX_CONTEXT_CMD_H
++#define _VX_CONTEXT_CMD_H
++
++
++/* vinfo commands */
++
++#define VCMD_task_xid VC_CMD(VINFO, 1, 0)
++
++#ifdef __KERNEL__
++extern int vc_task_xid(uint32_t);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_vx_info VC_CMD(VINFO, 5, 0)
++
++struct vcmd_vx_info_v0 {
++ uint32_t xid;
++ uint32_t initpid;
++ /* more to come */
++};
++
++#ifdef __KERNEL__
++extern int vc_vx_info(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_ctx_stat VC_CMD(VSTAT, 0, 0)
++
++struct vcmd_ctx_stat_v0 {
++ uint32_t usecnt;
++ uint32_t tasks;
++ /* more to come */
++};
++
++#ifdef __KERNEL__
++extern int vc_ctx_stat(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++/* context commands */
++
++#define VCMD_ctx_create_v0 VC_CMD(VPROC, 1, 0)
++#define VCMD_ctx_create VC_CMD(VPROC, 1, 1)
++
++struct vcmd_ctx_create {
++ uint64_t flagword;
++};
++
++#define VCMD_ctx_migrate_v0 VC_CMD(PROCMIG, 1, 0)
++#define VCMD_ctx_migrate VC_CMD(PROCMIG, 1, 1)
++
++struct vcmd_ctx_migrate {
++ uint64_t flagword;
++};
++
++#ifdef __KERNEL__
++extern int vc_ctx_create(uint32_t, void __user *);
++extern int vc_ctx_migrate(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* flag commands */
++
++#define VCMD_get_cflags VC_CMD(FLAGS, 1, 0)
++#define VCMD_set_cflags VC_CMD(FLAGS, 2, 0)
++
++struct vcmd_ctx_flags_v0 {
++ uint64_t flagword;
++ uint64_t mask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_cflags(struct vx_info *, void __user *);
++extern int vc_set_cflags(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* context caps commands */
++
++#define VCMD_get_ccaps VC_CMD(FLAGS, 3, 1)
++#define VCMD_set_ccaps VC_CMD(FLAGS, 4, 1)
++
++struct vcmd_ctx_caps_v1 {
++ uint64_t ccaps;
++ uint64_t cmask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_ccaps(struct vx_info *, void __user *);
++extern int vc_set_ccaps(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* bcaps commands */
++
++#define VCMD_get_bcaps VC_CMD(FLAGS, 9, 0)
++#define VCMD_set_bcaps VC_CMD(FLAGS, 10, 0)
++
++struct vcmd_bcaps {
++ uint64_t bcaps;
++ uint64_t bmask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_bcaps(struct vx_info *, void __user *);
++extern int vc_set_bcaps(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* umask commands */
++
++#define VCMD_get_umask VC_CMD(FLAGS, 13, 0)
++#define VCMD_set_umask VC_CMD(FLAGS, 14, 0)
++
++struct vcmd_umask {
++ uint64_t umask;
++ uint64_t mask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_umask(struct vx_info *, void __user *);
++extern int vc_set_umask(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* OOM badness */
++
++#define VCMD_get_badness VC_CMD(MEMCTRL, 5, 0)
++#define VCMD_set_badness VC_CMD(MEMCTRL, 6, 0)
++
++struct vcmd_badness_v0 {
++ int64_t bias;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_badness(struct vx_info *, void __user *);
++extern int vc_set_badness(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CONTEXT_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/context.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/context.h
+--- linux-2.6.32.1/include/linux/vserver/context.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/context.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,183 @@
++#ifndef _VX_CONTEXT_H
++#define _VX_CONTEXT_H
++
++#include <linux/types.h>
++#include <linux/capability.h>
++
++
++/* context flags */
++
++#define VXF_INFO_SCHED 0x00000002
++#define VXF_INFO_NPROC 0x00000004
++#define VXF_INFO_PRIVATE 0x00000008
++
++#define VXF_INFO_INIT 0x00000010
++#define VXF_INFO_HIDE 0x00000020
++#define VXF_INFO_ULIMIT 0x00000040
++#define VXF_INFO_NSPACE 0x00000080
++
++#define VXF_SCHED_HARD 0x00000100
++#define VXF_SCHED_PRIO 0x00000200
++#define VXF_SCHED_PAUSE 0x00000400
++
++#define VXF_VIRT_MEM 0x00010000
++#define VXF_VIRT_UPTIME 0x00020000
++#define VXF_VIRT_CPU 0x00040000
++#define VXF_VIRT_LOAD 0x00080000
++#define VXF_VIRT_TIME 0x00100000
++
++#define VXF_HIDE_MOUNT 0x01000000
++/* was VXF_HIDE_NETIF 0x02000000 */
++#define VXF_HIDE_VINFO 0x04000000
++
++#define VXF_STATE_SETUP (1ULL << 32)
++#define VXF_STATE_INIT (1ULL << 33)
++#define VXF_STATE_ADMIN (1ULL << 34)
++
++#define VXF_SC_HELPER (1ULL << 36)
++#define VXF_REBOOT_KILL (1ULL << 37)
++#define VXF_PERSISTENT (1ULL << 38)
++
++#define VXF_FORK_RSS (1ULL << 48)
++#define VXF_PROLIFIC (1ULL << 49)
++
++#define VXF_IGNEG_NICE (1ULL << 52)
++
++#define VXF_ONE_TIME (0x0007ULL << 32)
++
++#define VXF_INIT_SET (VXF_STATE_SETUP | VXF_STATE_INIT | VXF_STATE_ADMIN)
++
++
++/* context migration */
++
++#define VXM_SET_INIT 0x00000001
++#define VXM_SET_REAPER 0x00000002
++
++/* context caps */
++
++#define VXC_CAP_MASK 0x00000000
++
++#define VXC_SET_UTSNAME 0x00000001
++#define VXC_SET_RLIMIT 0x00000002
++#define VXC_FS_SECURITY 0x00000004
++#define VXC_TIOCSTI 0x00000010
++
++/* was VXC_RAW_ICMP 0x00000100 */
++#define VXC_SYSLOG 0x00001000
++#define VXC_OOM_ADJUST 0x00002000
++#define VXC_AUDIT_CONTROL 0x00004000
++
++#define VXC_SECURE_MOUNT 0x00010000
++#define VXC_SECURE_REMOUNT 0x00020000
++#define VXC_BINARY_MOUNT 0x00040000
++
++#define VXC_QUOTA_CTL 0x00100000
++#define VXC_ADMIN_MAPPER 0x00200000
++#define VXC_ADMIN_CLOOP 0x00400000
++
++#define VXC_KTHREAD 0x01000000
++#define VXC_NAMESPACE 0x02000000
++
++
++#ifdef __KERNEL__
++
++#include <linux/list.h>
++#include <linux/spinlock.h>
++#include <linux/rcupdate.h>
++
++#include "limit_def.h"
++#include "sched_def.h"
++#include "cvirt_def.h"
++#include "cacct_def.h"
++#include "device_def.h"
++
++#define VX_SPACES 2
++
++struct _vx_info_pc {
++ struct _vx_sched_pc sched_pc;
++ struct _vx_cvirt_pc cvirt_pc;
++};
++
++struct vx_info {
++ struct hlist_node vx_hlist; /* linked list of contexts */
++ xid_t vx_id; /* context id */
++ atomic_t vx_usecnt; /* usage count */
++ atomic_t vx_tasks; /* tasks count */
++ struct vx_info *vx_parent; /* parent context */
++ int vx_state; /* context state */
++
++ unsigned long vx_nsmask[VX_SPACES]; /* assignment mask */
++ struct nsproxy *vx_nsproxy[VX_SPACES]; /* private namespaces */
++ struct fs_struct *vx_fs[VX_SPACES]; /* private namespace fs */
++
++ uint64_t vx_flags; /* context flags */
++ uint64_t vx_ccaps; /* context caps (vserver) */
++ kernel_cap_t vx_bcaps; /* bounding caps (system) */
++ unsigned long vx_umask; /* unshare mask (guest) */
++
++ struct task_struct *vx_reaper; /* guest reaper process */
++ pid_t vx_initpid; /* PID of guest init */
++ int64_t vx_badness_bias; /* OOM points bias */
++
++ struct _vx_limit limit; /* vserver limits */
++ struct _vx_sched sched; /* vserver scheduler */
++ struct _vx_cvirt cvirt; /* virtual/bias stuff */
++ struct _vx_cacct cacct; /* context accounting */
++
++ struct _vx_device dmap; /* default device map targets */
++
++#ifndef CONFIG_SMP
++ struct _vx_info_pc info_pc; /* per cpu data */
++#else
++ struct _vx_info_pc *ptr_pc; /* per cpu array */
++#endif
++
++ wait_queue_head_t vx_wait; /* context exit waitqueue */
++ int reboot_cmd; /* last sys_reboot() cmd */
++ int exit_code; /* last process exit code */
++
++ char vx_name[65]; /* vserver name */
++};
++
++#ifndef CONFIG_SMP
++#define vx_ptr_pc(vxi) (&(vxi)->info_pc)
++#define vx_per_cpu(vxi, v, id) vx_ptr_pc(vxi)->v
++#else
++#define vx_ptr_pc(vxi) ((vxi)->ptr_pc)
++#define vx_per_cpu(vxi, v, id) per_cpu_ptr(vx_ptr_pc(vxi), id)->v
++#endif
++
++#define vx_cpu(vxi, v) vx_per_cpu(vxi, v, smp_processor_id())
++
++
++struct vx_info_save {
++ struct vx_info *vxi;
++ xid_t xid;
++};
++
++
++/* status flags */
++
++#define VXS_HASHED 0x0001
++#define VXS_PAUSED 0x0010
++#define VXS_SHUTDOWN 0x0100
++#define VXS_HELPER 0x1000
++#define VXS_RELEASED 0x8000
++
++
++extern void claim_vx_info(struct vx_info *, struct task_struct *);
++extern void release_vx_info(struct vx_info *, struct task_struct *);
++
++extern struct vx_info *lookup_vx_info(int);
++extern struct vx_info *lookup_or_create_vx_info(int);
++
++extern int get_xid_list(int, unsigned int *, int);
++extern int xid_is_hashed(xid_t);
++
++extern int vx_migrate_task(struct task_struct *, struct vx_info *, int);
++
++extern long vs_state_change(struct vx_info *, unsigned int);
++
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CONTEXT_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/cvirt_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cvirt_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/cvirt_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cvirt_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,53 @@
++#ifndef _VX_CVIRT_CMD_H
++#define _VX_CVIRT_CMD_H
++
++
++/* virtual host info name commands */
++
++#define VCMD_set_vhi_name VC_CMD(VHOST, 1, 0)
++#define VCMD_get_vhi_name VC_CMD(VHOST, 2, 0)
++
++struct vcmd_vhi_name_v0 {
++ uint32_t field;
++ char name[65];
++};
++
++
++enum vhi_name_field {
++ VHIN_CONTEXT = 0,
++ VHIN_SYSNAME,
++ VHIN_NODENAME,
++ VHIN_RELEASE,
++ VHIN_VERSION,
++ VHIN_MACHINE,
++ VHIN_DOMAINNAME,
++};
++
++
++#ifdef __KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_set_vhi_name(struct vx_info *, void __user *);
++extern int vc_get_vhi_name(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_virt_stat VC_CMD(VSTAT, 3, 0)
++
++struct vcmd_virt_stat_v0 {
++ uint64_t offset;
++ uint64_t uptime;
++ uint32_t nr_threads;
++ uint32_t nr_running;
++ uint32_t nr_uninterruptible;
++ uint32_t nr_onhold;
++ uint32_t nr_forks;
++ uint32_t load[3];
++};
++
++#ifdef __KERNEL__
++extern int vc_virt_stat(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CVIRT_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/cvirt_def.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cvirt_def.h
+--- linux-2.6.32.1/include/linux/vserver/cvirt_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cvirt_def.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,80 @@
++#ifndef _VX_CVIRT_DEF_H
++#define _VX_CVIRT_DEF_H
++
++#include <linux/jiffies.h>
++#include <linux/spinlock.h>
++#include <linux/wait.h>
++#include <linux/time.h>
++#include <asm/atomic.h>
++
++
++struct _vx_usage_stat {
++ uint64_t user;
++ uint64_t nice;
++ uint64_t system;
++ uint64_t softirq;
++ uint64_t irq;
++ uint64_t idle;
++ uint64_t iowait;
++};
++
++struct _vx_syslog {
++ wait_queue_head_t log_wait;
++ spinlock_t logbuf_lock; /* lock for the log buffer */
++
++ unsigned long log_start; /* next char to be read by syslog() */
++ unsigned long con_start; /* next char to be sent to consoles */
++ unsigned long log_end; /* most-recently-written-char + 1 */
++ unsigned long logged_chars; /* #chars since last read+clear operation */
++
++ char log_buf[1024];
++};
++
++
++/* context sub struct */
++
++struct _vx_cvirt {
++ atomic_t nr_threads; /* number of current threads */
++ atomic_t nr_running; /* number of running threads */
++ atomic_t nr_uninterruptible; /* number of uninterruptible threads */
++
++ atomic_t nr_onhold; /* processes on hold */
++ uint32_t onhold_last; /* jiffies when put on hold */
++
++ struct timeval bias_tv; /* time offset to the host */
++ struct timespec bias_idle;
++ struct timespec bias_uptime; /* context creation point */
++ uint64_t bias_clock; /* offset in clock_t */
++
++ spinlock_t load_lock; /* lock for the load averages */
++ atomic_t load_updates; /* nr of load updates done so far */
++ uint32_t load_last; /* last time load was calculated */
++ uint32_t load[3]; /* load averages 1,5,15 */
++
++ atomic_t total_forks; /* number of forks so far */
++
++ struct _vx_syslog syslog;
++};
++
++struct _vx_cvirt_pc {
++ struct _vx_usage_stat cpustat;
++};
++
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++static inline void __dump_vx_cvirt(struct _vx_cvirt *cvirt)
++{
++ printk("\t_vx_cvirt:\n");
++ printk("\t threads: %4d, %4d, %4d, %4d\n",
++ atomic_read(&cvirt->nr_threads),
++ atomic_read(&cvirt->nr_running),
++ atomic_read(&cvirt->nr_uninterruptible),
++ atomic_read(&cvirt->nr_onhold));
++ /* add rest here */
++ printk("\t total_forks = %d\n", atomic_read(&cvirt->total_forks));
++}
++
++#endif
++
++#endif /* _VX_CVIRT_DEF_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/cvirt.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cvirt.h
+--- linux-2.6.32.1/include/linux/vserver/cvirt.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/cvirt.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,20 @@
++#ifndef _VX_CVIRT_H
++#define _VX_CVIRT_H
++
++
++#ifdef __KERNEL__
++
++struct timespec;
++
++void vx_vsi_uptime(struct timespec *, struct timespec *);
++
++
++struct vx_info;
++
++void vx_update_load(struct vx_info *);
++
++
++int vx_do_syslog(int, char __user *, int);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CVIRT_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/debug_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/debug_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/debug_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/debug_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,58 @@
++#ifndef _VX_DEBUG_CMD_H
++#define _VX_DEBUG_CMD_H
++
++
++/* debug commands */
++
++#define VCMD_dump_history VC_CMD(DEBUG, 1, 0)
++
++#define VCMD_read_history VC_CMD(DEBUG, 5, 0)
++#define VCMD_read_monitor VC_CMD(DEBUG, 6, 0)
++
++struct vcmd_read_history_v0 {
++ uint32_t index;
++ uint32_t count;
++ char __user *data;
++};
++
++struct vcmd_read_monitor_v0 {
++ uint32_t index;
++ uint32_t count;
++ char __user *data;
++};
++
++
++#ifdef __KERNEL__
++
++#ifdef CONFIG_COMPAT
++
++#include <asm/compat.h>
++
++struct vcmd_read_history_v0_x32 {
++ uint32_t index;
++ uint32_t count;
++ compat_uptr_t data_ptr;
++};
++
++struct vcmd_read_monitor_v0_x32 {
++ uint32_t index;
++ uint32_t count;
++ compat_uptr_t data_ptr;
++};
++
++#endif /* CONFIG_COMPAT */
++
++extern int vc_dump_history(uint32_t);
++
++extern int vc_read_history(uint32_t, void __user *);
++extern int vc_read_monitor(uint32_t, void __user *);
++
++#ifdef CONFIG_COMPAT
++
++extern int vc_read_history_x32(uint32_t, void __user *);
++extern int vc_read_monitor_x32(uint32_t, void __user *);
++
++#endif /* CONFIG_COMPAT */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_DEBUG_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/debug.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/debug.h
+--- linux-2.6.32.1/include/linux/vserver/debug.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/debug.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,127 @@
++#ifndef _VX_DEBUG_H
++#define _VX_DEBUG_H
++
++
++#define VXD_CBIT(n, m) (vx_debug_ ## n & (1 << (m)))
++#define VXD_CMIN(n, m) (vx_debug_ ## n > (m))
++#define VXD_MASK(n, m) (vx_debug_ ## n & (m))
++
++#define VXD_DEV(d) (d), (d)->bd_inode->i_ino, \
++ imajor((d)->bd_inode), iminor((d)->bd_inode)
++#define VXF_DEV "%p[%lu,%d:%d]"
++
++
++#define vxd_path(p) \
++ ({ static char _buffer[PATH_MAX]; \
++ d_path(p, _buffer, sizeof(_buffer)); })
++
++#define vxd_cond_path(n) \
++ ((n) ? vxd_path(&(n)->path) : "<null>" )
++
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++extern unsigned int vx_debug_switch;
++extern unsigned int vx_debug_xid;
++extern unsigned int vx_debug_nid;
++extern unsigned int vx_debug_tag;
++extern unsigned int vx_debug_net;
++extern unsigned int vx_debug_limit;
++extern unsigned int vx_debug_cres;
++extern unsigned int vx_debug_dlim;
++extern unsigned int vx_debug_quota;
++extern unsigned int vx_debug_cvirt;
++extern unsigned int vx_debug_space;
++extern unsigned int vx_debug_misc;
++
++
++#define VX_LOGLEVEL "vxD: "
++#define VX_PROC_FMT "%p: "
++#define VX_PROCESS current
++
++#define vxdprintk(c, f, x...) \
++ do { \
++ if (c) \
++ printk(VX_LOGLEVEL VX_PROC_FMT f "\n", \
++ VX_PROCESS , ##x); \
++ } while (0)
++
++#define vxlprintk(c, f, x...) \
++ do { \
++ if (c) \
++ printk(VX_LOGLEVEL f " @%s:%d\n", x); \
++ } while (0)
++
++#define vxfprintk(c, f, x...) \
++ do { \
++ if (c) \
++ printk(VX_LOGLEVEL f " %s@%s:%d\n", x); \
++ } while (0)
++
++
++struct vx_info;
++
++void dump_vx_info(struct vx_info *, int);
++void dump_vx_info_inactive(int);
++
++#else /* CONFIG_VSERVER_DEBUG */
++
++#define vx_debug_switch 0
++#define vx_debug_xid 0
++#define vx_debug_nid 0
++#define vx_debug_tag 0
++#define vx_debug_net 0
++#define vx_debug_limit 0
++#define vx_debug_cres 0
++#define vx_debug_dlim 0
++#define vx_debug_cvirt 0
++
++#define vxdprintk(x...) do { } while (0)
++#define vxlprintk(x...) do { } while (0)
++#define vxfprintk(x...) do { } while (0)
++
++#endif /* CONFIG_VSERVER_DEBUG */
++
++
++#ifdef CONFIG_VSERVER_WARN
++
++#define VX_WARNLEVEL KERN_WARNING "vxW: "
++#define VX_WARN_TASK "[»%s«,%u:#%u|%u|%u] "
++#define VX_WARN_XID "[xid #%u] "
++#define VX_WARN_NID "[nid #%u] "
++#define VX_WARN_TAG "[tag #%u] "
++
++#define vxwprintk(c, f, x...) \
++ do { \
++ if (c) \
++ printk(VX_WARNLEVEL f "\n", ##x); \
++ } while (0)
++
++#else /* CONFIG_VSERVER_WARN */
++
++#define vxwprintk(x...) do { } while (0)
++
++#endif /* CONFIG_VSERVER_WARN */
++
++#define vxwprintk_task(c, f, x...) \
++ vxwprintk(c, VX_WARN_TASK f, \
++ current->comm, current->pid, \
++ current->xid, current->nid, current->tag, ##x)
++#define vxwprintk_xid(c, f, x...) \
++ vxwprintk(c, VX_WARN_XID f, current->xid, x)
++#define vxwprintk_nid(c, f, x...) \
++ vxwprintk(c, VX_WARN_NID f, current->nid, x)
++#define vxwprintk_tag(c, f, x...) \
++ vxwprintk(c, VX_WARN_TAG f, current->tag, x)
++
++#ifdef CONFIG_VSERVER_DEBUG
++#define vxd_assert_lock(l) assert_spin_locked(l)
++#define vxd_assert(c, f, x...) vxlprintk(!(c), \
++ "assertion [" f "] failed.", ##x, __FILE__, __LINE__)
++#else
++#define vxd_assert_lock(l) do { } while (0)
++#define vxd_assert(c, f, x...) do { } while (0)
++#endif
++
++
++#endif /* _VX_DEBUG_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/device_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/device_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/device_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/device_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,44 @@
++#ifndef _VX_DEVICE_CMD_H
++#define _VX_DEVICE_CMD_H
++
++
++/* device vserver commands */
++
++#define VCMD_set_mapping VC_CMD(DEVICE, 1, 0)
++#define VCMD_unset_mapping VC_CMD(DEVICE, 2, 0)
++
++struct vcmd_set_mapping_v0 {
++ const char __user *device;
++ const char __user *target;
++ uint32_t flags;
++};
++
++
++#ifdef __KERNEL__
++
++#ifdef CONFIG_COMPAT
++
++#include <asm/compat.h>
++
++struct vcmd_set_mapping_v0_x32 {
++ compat_uptr_t device_ptr;
++ compat_uptr_t target_ptr;
++ uint32_t flags;
++};
++
++#endif /* CONFIG_COMPAT */
++
++#include <linux/compiler.h>
++
++extern int vc_set_mapping(struct vx_info *, void __user *);
++extern int vc_unset_mapping(struct vx_info *, void __user *);
++
++#ifdef CONFIG_COMPAT
++
++extern int vc_set_mapping_x32(struct vx_info *, void __user *);
++extern int vc_unset_mapping_x32(struct vx_info *, void __user *);
++
++#endif /* CONFIG_COMPAT */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_DEVICE_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/device_def.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/device_def.h
+--- linux-2.6.32.1/include/linux/vserver/device_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/device_def.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,17 @@
++#ifndef _VX_DEVICE_DEF_H
++#define _VX_DEVICE_DEF_H
++
++#include <linux/types.h>
++
++struct vx_dmap_target {
++ dev_t target;
++ uint32_t flags;
++};
++
++struct _vx_device {
++#ifdef CONFIG_VSERVER_DEVICE
++ struct vx_dmap_target targets[2];
++#endif
++};
++
++#endif /* _VX_DEVICE_DEF_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/device.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/device.h
+--- linux-2.6.32.1/include/linux/vserver/device.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/device.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,15 @@
++#ifndef _VX_DEVICE_H
++#define _VX_DEVICE_H
++
++
++#define DATTR_CREATE 0x00000001
++#define DATTR_OPEN 0x00000002
++
++#define DATTR_REMAP 0x00000010
++
++#define DATTR_MASK 0x00000013
++
++
++#else /* _VX_DEVICE_H */
++#warning duplicate inclusion
++#endif /* _VX_DEVICE_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/dlimit_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/dlimit_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/dlimit_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/dlimit_cmd.h 2009-12-10 16:43:43.000000000 +0100
+@@ -0,0 +1,109 @@
++#ifndef _VX_DLIMIT_CMD_H
++#define _VX_DLIMIT_CMD_H
++
++
++/* dlimit vserver commands */
++
++#define VCMD_add_dlimit VC_CMD(DLIMIT, 1, 0)
++#define VCMD_rem_dlimit VC_CMD(DLIMIT, 2, 0)
++
++#define VCMD_set_dlimit VC_CMD(DLIMIT, 5, 0)
++#define VCMD_get_dlimit VC_CMD(DLIMIT, 6, 0)
++
++struct vcmd_ctx_dlimit_base_v0 {
++ const char __user *name;
++ uint32_t flags;
++};
++
++struct vcmd_ctx_dlimit_v0 {
++ const char __user *name;
++ uint32_t space_used; /* used space in kbytes */
++ uint32_t space_total; /* maximum space in kbytes */
++ uint32_t inodes_used; /* used inodes */
++ uint32_t inodes_total; /* maximum inodes */
++ uint32_t reserved; /* reserved for root in % */
++ uint32_t flags;
++};
++
++#define CDLIM_UNSET ((uint32_t)0UL)
++#define CDLIM_INFINITY ((uint32_t)~0UL)
++#define CDLIM_KEEP ((uint32_t)~1UL)
++
++#define DLIME_UNIT 0
++#define DLIME_KILO 1
++#define DLIME_MEGA 2
++#define DLIME_GIGA 3
++
++#define DLIMF_SHIFT 0x10
++
++#define DLIMS_USED 0
++#define DLIMS_TOTAL 2
++
++static inline
++uint64_t dlimit_space_32to64(uint32_t val, uint32_t flags, int shift)
++{
++ int exp = (flags & DLIMF_SHIFT) ?
++ (flags >> shift) & DLIME_GIGA : DLIME_KILO;
++ return ((uint64_t)val) << (10 * exp);
++}
++
++static inline
++uint32_t dlimit_space_64to32(uint64_t val, uint32_t *flags, int shift)
++{
++ int exp = 0;
++
++ if (*flags & DLIMF_SHIFT) {
++ while (val > (1LL << 32) && (exp < 3)) {
++ val >>= 10;
++ exp++;
++ }
++ *flags &= ~(DLIME_GIGA << shift);
++ *flags |= exp << shift;
++ } else
++ val >>= 10;
++ return val;
++}
++
++#ifdef __KERNEL__
++
++#ifdef CONFIG_COMPAT
++
++#include <asm/compat.h>
++
++struct vcmd_ctx_dlimit_base_v0_x32 {
++ compat_uptr_t name_ptr;
++ uint32_t flags;
++};
++
++struct vcmd_ctx_dlimit_v0_x32 {
++ compat_uptr_t name_ptr;
++ uint32_t space_used; /* used space in kbytes */
++ uint32_t space_total; /* maximum space in kbytes */
++ uint32_t inodes_used; /* used inodes */
++ uint32_t inodes_total; /* maximum inodes */
++ uint32_t reserved; /* reserved for root in % */
++ uint32_t flags;
++};
++
++#endif /* CONFIG_COMPAT */
++
++#include <linux/compiler.h>
++
++extern int vc_add_dlimit(uint32_t, void __user *);
++extern int vc_rem_dlimit(uint32_t, void __user *);
++
++extern int vc_set_dlimit(uint32_t, void __user *);
++extern int vc_get_dlimit(uint32_t, void __user *);
++
++#ifdef CONFIG_COMPAT
++
++extern int vc_add_dlimit_x32(uint32_t, void __user *);
++extern int vc_rem_dlimit_x32(uint32_t, void __user *);
++
++extern int vc_set_dlimit_x32(uint32_t, void __user *);
++extern int vc_get_dlimit_x32(uint32_t, void __user *);
++
++#endif /* CONFIG_COMPAT */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_DLIMIT_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/dlimit.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/dlimit.h
+--- linux-2.6.32.1/include/linux/vserver/dlimit.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/dlimit.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,54 @@
++#ifndef _VX_DLIMIT_H
++#define _VX_DLIMIT_H
++
++#include "switch.h"
++
++
++#ifdef __KERNEL__
++
++/* keep in sync with CDLIM_INFINITY */
++
++#define DLIM_INFINITY (~0ULL)
++
++#include <linux/spinlock.h>
++#include <linux/rcupdate.h>
++
++struct super_block;
++
++struct dl_info {
++ struct hlist_node dl_hlist; /* linked list of contexts */
++ struct rcu_head dl_rcu; /* the rcu head */
++ tag_t dl_tag; /* context tag */
++ atomic_t dl_usecnt; /* usage count */
++ atomic_t dl_refcnt; /* reference count */
++
++ struct super_block *dl_sb; /* associated superblock */
++
++ spinlock_t dl_lock; /* protect the values */
++
++ unsigned long long dl_space_used; /* used space in bytes */
++ unsigned long long dl_space_total; /* maximum space in bytes */
++ unsigned long dl_inodes_used; /* used inodes */
++ unsigned long dl_inodes_total; /* maximum inodes */
++
++ unsigned int dl_nrlmult; /* non root limit mult */
++};
++
++struct rcu_head;
++
++extern void rcu_free_dl_info(struct rcu_head *);
++extern void unhash_dl_info(struct dl_info *);
++
++extern struct dl_info *locate_dl_info(struct super_block *, tag_t);
++
++
++struct kstatfs;
++
++extern void vx_vsi_statfs(struct super_block *, struct kstatfs *);
++
++typedef uint64_t dlsize_t;
++
++#endif /* __KERNEL__ */
++#else /* _VX_DLIMIT_H */
++#warning duplicate inclusion
++#endif /* _VX_DLIMIT_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/global.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/global.h
+--- linux-2.6.32.1/include/linux/vserver/global.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/global.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,19 @@
++#ifndef _VX_GLOBAL_H
++#define _VX_GLOBAL_H
++
++
++extern atomic_t vx_global_ctotal;
++extern atomic_t vx_global_cactive;
++
++extern atomic_t nx_global_ctotal;
++extern atomic_t nx_global_cactive;
++
++extern atomic_t vs_global_nsproxy;
++extern atomic_t vs_global_fs;
++extern atomic_t vs_global_mnt_ns;
++extern atomic_t vs_global_uts_ns;
++extern atomic_t vs_global_user_ns;
++extern atomic_t vs_global_pid_ns;
++
++
++#endif /* _VX_GLOBAL_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/history.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/history.h
+--- linux-2.6.32.1/include/linux/vserver/history.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/history.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,197 @@
++#ifndef _VX_HISTORY_H
++#define _VX_HISTORY_H
++
++
++enum {
++ VXH_UNUSED = 0,
++ VXH_THROW_OOPS = 1,
++
++ VXH_GET_VX_INFO,
++ VXH_PUT_VX_INFO,
++ VXH_INIT_VX_INFO,
++ VXH_SET_VX_INFO,
++ VXH_CLR_VX_INFO,
++ VXH_CLAIM_VX_INFO,
++ VXH_RELEASE_VX_INFO,
++ VXH_ALLOC_VX_INFO,
++ VXH_DEALLOC_VX_INFO,
++ VXH_HASH_VX_INFO,
++ VXH_UNHASH_VX_INFO,
++ VXH_LOC_VX_INFO,
++ VXH_LOOKUP_VX_INFO,
++ VXH_CREATE_VX_INFO,
++};
++
++struct _vxhe_vxi {
++ struct vx_info *ptr;
++ unsigned xid;
++ unsigned usecnt;
++ unsigned tasks;
++};
++
++struct _vxhe_set_clr {
++ void *data;
++};
++
++struct _vxhe_loc_lookup {
++ unsigned arg;
++};
++
++struct _vx_hist_entry {
++ void *loc;
++ unsigned short seq;
++ unsigned short type;
++ struct _vxhe_vxi vxi;
++ union {
++ struct _vxhe_set_clr sc;
++ struct _vxhe_loc_lookup ll;
++ };
++};
++
++#ifdef CONFIG_VSERVER_HISTORY
++
++extern unsigned volatile int vxh_active;
++
++struct _vx_hist_entry *vxh_advance(void *loc);
++
++
++static inline
++void __vxh_copy_vxi(struct _vx_hist_entry *entry, struct vx_info *vxi)
++{
++ entry->vxi.ptr = vxi;
++ if (vxi) {
++ entry->vxi.usecnt = atomic_read(&vxi->vx_usecnt);
++ entry->vxi.tasks = atomic_read(&vxi->vx_tasks);
++ entry->vxi.xid = vxi->vx_id;
++ }
++}
++
++
++#define __HERE__ current_text_addr()
++
++#define __VXH_BODY(__type, __data, __here) \
++ struct _vx_hist_entry *entry; \
++ \
++ preempt_disable(); \
++ entry = vxh_advance(__here); \
++ __data; \
++ entry->type = __type; \
++ preempt_enable();
++
++
++ /* pass vxi only */
++
++#define __VXH_SMPL \
++ __vxh_copy_vxi(entry, vxi)
++
++static inline
++void __vxh_smpl(struct vx_info *vxi, int __type, void *__here)
++{
++ __VXH_BODY(__type, __VXH_SMPL, __here)
++}
++
++ /* pass vxi and data (void *) */
++
++#define __VXH_DATA \
++ __vxh_copy_vxi(entry, vxi); \
++ entry->sc.data = data
++
++static inline
++void __vxh_data(struct vx_info *vxi, void *data,
++ int __type, void *__here)
++{
++ __VXH_BODY(__type, __VXH_DATA, __here)
++}
++
++ /* pass vxi and arg (long) */
++
++#define __VXH_LONG \
++ __vxh_copy_vxi(entry, vxi); \
++ entry->ll.arg = arg
++
++static inline
++void __vxh_long(struct vx_info *vxi, long arg,
++ int __type, void *__here)
++{
++ __VXH_BODY(__type, __VXH_LONG, __here)
++}
++
++
++static inline
++void __vxh_throw_oops(void *__here)
++{
++ __VXH_BODY(VXH_THROW_OOPS, {}, __here);
++ /* prevent further acquisition */
++ vxh_active = 0;
++}
++
++
++#define vxh_throw_oops() __vxh_throw_oops(__HERE__);
++
++#define __vxh_get_vx_info(v, h) __vxh_smpl(v, VXH_GET_VX_INFO, h);
++#define __vxh_put_vx_info(v, h) __vxh_smpl(v, VXH_PUT_VX_INFO, h);
++
++#define __vxh_init_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_INIT_VX_INFO, h);
++#define __vxh_set_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_SET_VX_INFO, h);
++#define __vxh_clr_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_CLR_VX_INFO, h);
++
++#define __vxh_claim_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_CLAIM_VX_INFO, h);
++#define __vxh_release_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_RELEASE_VX_INFO, h);
++
++#define vxh_alloc_vx_info(v) \
++ __vxh_smpl(v, VXH_ALLOC_VX_INFO, __HERE__);
++#define vxh_dealloc_vx_info(v) \
++ __vxh_smpl(v, VXH_DEALLOC_VX_INFO, __HERE__);
++
++#define vxh_hash_vx_info(v) \
++ __vxh_smpl(v, VXH_HASH_VX_INFO, __HERE__);
++#define vxh_unhash_vx_info(v) \
++ __vxh_smpl(v, VXH_UNHASH_VX_INFO, __HERE__);
++
++#define vxh_loc_vx_info(v, l) \
++ __vxh_long(v, l, VXH_LOC_VX_INFO, __HERE__);
++#define vxh_lookup_vx_info(v, l) \
++ __vxh_long(v, l, VXH_LOOKUP_VX_INFO, __HERE__);
++#define vxh_create_vx_info(v, l) \
++ __vxh_long(v, l, VXH_CREATE_VX_INFO, __HERE__);
++
++extern void vxh_dump_history(void);
++
++
++#else /* CONFIG_VSERVER_HISTORY */
++
++#define __HERE__ 0
++
++#define vxh_throw_oops() do { } while (0)
++
++#define __vxh_get_vx_info(v, h) do { } while (0)
++#define __vxh_put_vx_info(v, h) do { } while (0)
++
++#define __vxh_init_vx_info(v, d, h) do { } while (0)
++#define __vxh_set_vx_info(v, d, h) do { } while (0)
++#define __vxh_clr_vx_info(v, d, h) do { } while (0)
++
++#define __vxh_claim_vx_info(v, d, h) do { } while (0)
++#define __vxh_release_vx_info(v, d, h) do { } while (0)
++
++#define vxh_alloc_vx_info(v) do { } while (0)
++#define vxh_dealloc_vx_info(v) do { } while (0)
++
++#define vxh_hash_vx_info(v) do { } while (0)
++#define vxh_unhash_vx_info(v) do { } while (0)
++
++#define vxh_loc_vx_info(v, l) do { } while (0)
++#define vxh_lookup_vx_info(v, l) do { } while (0)
++#define vxh_create_vx_info(v, l) do { } while (0)
++
++#define vxh_dump_history() do { } while (0)
++
++
++#endif /* CONFIG_VSERVER_HISTORY */
++
++#endif /* _VX_HISTORY_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/inode_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/inode_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/inode_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/inode_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,59 @@
++#ifndef _VX_INODE_CMD_H
++#define _VX_INODE_CMD_H
++
++
++/* inode vserver commands */
++
++#define VCMD_get_iattr VC_CMD(INODE, 1, 1)
++#define VCMD_set_iattr VC_CMD(INODE, 2, 1)
++
++#define VCMD_fget_iattr VC_CMD(INODE, 3, 0)
++#define VCMD_fset_iattr VC_CMD(INODE, 4, 0)
++
++struct vcmd_ctx_iattr_v1 {
++ const char __user *name;
++ uint32_t tag;
++ uint32_t flags;
++ uint32_t mask;
++};
++
++struct vcmd_ctx_fiattr_v0 {
++ uint32_t tag;
++ uint32_t flags;
++ uint32_t mask;
++};
++
++
++#ifdef __KERNEL__
++
++
++#ifdef CONFIG_COMPAT
++
++#include <asm/compat.h>
++
++struct vcmd_ctx_iattr_v1_x32 {
++ compat_uptr_t name_ptr;
++ uint32_t tag;
++ uint32_t flags;
++ uint32_t mask;
++};
++
++#endif /* CONFIG_COMPAT */
++
++#include <linux/compiler.h>
++
++extern int vc_get_iattr(void __user *);
++extern int vc_set_iattr(void __user *);
++
++extern int vc_fget_iattr(uint32_t, void __user *);
++extern int vc_fset_iattr(uint32_t, void __user *);
++
++#ifdef CONFIG_COMPAT
++
++extern int vc_get_iattr_x32(void __user *);
++extern int vc_set_iattr_x32(void __user *);
++
++#endif /* CONFIG_COMPAT */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_INODE_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/inode.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/inode.h
+--- linux-2.6.32.1/include/linux/vserver/inode.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/inode.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,39 @@
++#ifndef _VX_INODE_H
++#define _VX_INODE_H
++
++
++#define IATTR_TAG 0x01000000
++
++#define IATTR_ADMIN 0x00000001
++#define IATTR_WATCH 0x00000002
++#define IATTR_HIDE 0x00000004
++#define IATTR_FLAGS 0x00000007
++
++#define IATTR_BARRIER 0x00010000
++#define IATTR_IXUNLINK 0x00020000
++#define IATTR_IMMUTABLE 0x00040000
++#define IATTR_COW 0x00080000
++
++#ifdef __KERNEL__
++
++
++#ifdef CONFIG_VSERVER_PROC_SECURE
++#define IATTR_PROC_DEFAULT ( IATTR_ADMIN | IATTR_HIDE )
++#define IATTR_PROC_SYMLINK ( IATTR_ADMIN )
++#else
++#define IATTR_PROC_DEFAULT ( IATTR_ADMIN )
++#define IATTR_PROC_SYMLINK ( IATTR_ADMIN )
++#endif
++
++#define vx_hide_check(c, m) (((m) & IATTR_HIDE) ? vx_check(c, m) : 1)
++
++#endif /* __KERNEL__ */
++
++/* inode ioctls */
++
++#define FIOC_GETXFLG _IOR('x', 5, long)
++#define FIOC_SETXFLG _IOW('x', 6, long)
++
++#else /* _VX_INODE_H */
++#warning duplicate inclusion
++#endif /* _VX_INODE_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/Kbuild linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/Kbuild
+--- linux-2.6.32.1/include/linux/vserver/Kbuild 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/Kbuild 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,8 @@
++
++unifdef-y += context_cmd.h network_cmd.h space_cmd.h \
++ cacct_cmd.h cvirt_cmd.h limit_cmd.h dlimit_cmd.h \
++ inode_cmd.h tag_cmd.h sched_cmd.h signal_cmd.h \
++ debug_cmd.h device_cmd.h
++
++unifdef-y += switch.h network.h monitor.h inode.h device.h
++
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/limit_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/limit_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/limit_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/limit_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,71 @@
++#ifndef _VX_LIMIT_CMD_H
++#define _VX_LIMIT_CMD_H
++
++
++/* rlimit vserver commands */
++
++#define VCMD_get_rlimit VC_CMD(RLIMIT, 1, 0)
++#define VCMD_set_rlimit VC_CMD(RLIMIT, 2, 0)
++#define VCMD_get_rlimit_mask VC_CMD(RLIMIT, 3, 0)
++#define VCMD_reset_hits VC_CMD(RLIMIT, 7, 0)
++#define VCMD_reset_minmax VC_CMD(RLIMIT, 9, 0)
++
++struct vcmd_ctx_rlimit_v0 {
++ uint32_t id;
++ uint64_t minimum;
++ uint64_t softlimit;
++ uint64_t maximum;
++};
++
++struct vcmd_ctx_rlimit_mask_v0 {
++ uint32_t minimum;
++ uint32_t softlimit;
++ uint32_t maximum;
++};
++
++#define VCMD_rlimit_stat VC_CMD(VSTAT, 1, 0)
++
++struct vcmd_rlimit_stat_v0 {
++ uint32_t id;
++ uint32_t hits;
++ uint64_t value;
++ uint64_t minimum;
++ uint64_t maximum;
++};
++
++#define CRLIM_UNSET (0ULL)
++#define CRLIM_INFINITY (~0ULL)
++#define CRLIM_KEEP (~1ULL)
++
++#ifdef __KERNEL__
++
++#ifdef CONFIG_IA32_EMULATION
++
++struct vcmd_ctx_rlimit_v0_x32 {
++ uint32_t id;
++ uint64_t minimum;
++ uint64_t softlimit;
++ uint64_t maximum;
++} __attribute__ ((packed));
++
++#endif /* CONFIG_IA32_EMULATION */
++
++#include <linux/compiler.h>
++
++extern int vc_get_rlimit_mask(uint32_t, void __user *);
++extern int vc_get_rlimit(struct vx_info *, void __user *);
++extern int vc_set_rlimit(struct vx_info *, void __user *);
++extern int vc_reset_hits(struct vx_info *, void __user *);
++extern int vc_reset_minmax(struct vx_info *, void __user *);
++
++extern int vc_rlimit_stat(struct vx_info *, void __user *);
++
++#ifdef CONFIG_IA32_EMULATION
++
++extern int vc_get_rlimit_x32(struct vx_info *, void __user *);
++extern int vc_set_rlimit_x32(struct vx_info *, void __user *);
++
++#endif /* CONFIG_IA32_EMULATION */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_LIMIT_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/limit_def.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/limit_def.h
+--- linux-2.6.32.1/include/linux/vserver/limit_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/limit_def.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,47 @@
++#ifndef _VX_LIMIT_DEF_H
++#define _VX_LIMIT_DEF_H
++
++#include <asm/atomic.h>
++#include <asm/resource.h>
++
++#include "limit.h"
++
++
++struct _vx_res_limit {
++ rlim_t soft; /* Context soft limit */
++ rlim_t hard; /* Context hard limit */
++
++ rlim_atomic_t rcur; /* Current value */
++ rlim_t rmin; /* Context minimum */
++ rlim_t rmax; /* Context maximum */
++
++ atomic_t lhit; /* Limit hits */
++};
++
++/* context sub struct */
++
++struct _vx_limit {
++ struct _vx_res_limit res[NUM_LIMITS];
++};
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++static inline void __dump_vx_limit(struct _vx_limit *limit)
++{
++ int i;
++
++ printk("\t_vx_limit:");
++ for (i = 0; i < NUM_LIMITS; i++) {
++ printk("\t [%2d] = %8lu %8lu/%8lu, %8ld/%8ld, %8d\n",
++ i, (unsigned long)__rlim_get(limit, i),
++ (unsigned long)__rlim_rmin(limit, i),
++ (unsigned long)__rlim_rmax(limit, i),
++ (long)__rlim_soft(limit, i),
++ (long)__rlim_hard(limit, i),
++ atomic_read(&__rlim_lhit(limit, i)));
++ }
++}
++
++#endif
++
++#endif /* _VX_LIMIT_DEF_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/limit.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/limit.h
+--- linux-2.6.32.1/include/linux/vserver/limit.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/limit.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,70 @@
++#ifndef _VX_LIMIT_H
++#define _VX_LIMIT_H
++
++#define VLIMIT_NSOCK 16
++#define VLIMIT_OPENFD 17
++#define VLIMIT_ANON 18
++#define VLIMIT_SHMEM 19
++#define VLIMIT_SEMARY 20
++#define VLIMIT_NSEMS 21
++#define VLIMIT_DENTRY 22
++#define VLIMIT_MAPPED 23
++
++
++#ifdef __KERNEL__
++
++#define VLIM_NOCHECK ((1L << VLIMIT_DENTRY) | (1L << RLIMIT_RSS))
++
++/* keep in sync with CRLIM_INFINITY */
++
++#define VLIM_INFINITY (~0ULL)
++
++#include <asm/atomic.h>
++#include <asm/resource.h>
++
++#ifndef RLIM_INFINITY
++#warning RLIM_INFINITY is undefined
++#endif
++
++#define __rlim_val(l, r, v) ((l)->res[r].v)
++
++#define __rlim_soft(l, r) __rlim_val(l, r, soft)
++#define __rlim_hard(l, r) __rlim_val(l, r, hard)
++
++#define __rlim_rcur(l, r) __rlim_val(l, r, rcur)
++#define __rlim_rmin(l, r) __rlim_val(l, r, rmin)
++#define __rlim_rmax(l, r) __rlim_val(l, r, rmax)
++
++#define __rlim_lhit(l, r) __rlim_val(l, r, lhit)
++#define __rlim_hit(l, r) atomic_inc(&__rlim_lhit(l, r))
++
++typedef atomic_long_t rlim_atomic_t;
++typedef unsigned long rlim_t;
++
++#define __rlim_get(l, r) atomic_long_read(&__rlim_rcur(l, r))
++#define __rlim_set(l, r, v) atomic_long_set(&__rlim_rcur(l, r), v)
++#define __rlim_inc(l, r) atomic_long_inc(&__rlim_rcur(l, r))
++#define __rlim_dec(l, r) atomic_long_dec(&__rlim_rcur(l, r))
++#define __rlim_add(l, r, v) atomic_long_add(v, &__rlim_rcur(l, r))
++#define __rlim_sub(l, r, v) atomic_long_sub(v, &__rlim_rcur(l, r))
++
++
++#if (RLIM_INFINITY == VLIM_INFINITY)
++#define VX_VLIM(r) ((long long)(long)(r))
++#define VX_RLIM(v) ((rlim_t)(v))
++#else
++#define VX_VLIM(r) (((r) == RLIM_INFINITY) \
++ ? VLIM_INFINITY : (long long)(r))
++#define VX_RLIM(v) (((v) == VLIM_INFINITY) \
++ ? RLIM_INFINITY : (rlim_t)(v))
++#endif
++
++struct sysinfo;
++
++void vx_vsi_meminfo(struct sysinfo *);
++void vx_vsi_swapinfo(struct sysinfo *);
++
++#define NUM_LIMITS 24
++
++#endif /* __KERNEL__ */
++#endif /* _VX_LIMIT_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/limit_int.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/limit_int.h
+--- linux-2.6.32.1/include/linux/vserver/limit_int.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/limit_int.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,198 @@
++#ifndef _VX_LIMIT_INT_H
++#define _VX_LIMIT_INT_H
++
++#include "context.h"
++
++#ifdef __KERNEL__
++
++#define VXD_RCRES_COND(r) VXD_CBIT(cres, r)
++#define VXD_RLIMIT_COND(r) VXD_CBIT(limit, r)
++
++extern const char *vlimit_name[NUM_LIMITS];
++
++static inline void __vx_acc_cres(struct vx_info *vxi,
++ int res, int dir, void *_data, char *_file, int _line)
++{
++ if (VXD_RCRES_COND(res))
++ vxlprintk(1, "vx_acc_cres[%5d,%s,%2d]: %5ld%s (%p)",
++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
++ (dir > 0) ? "++" : "--", _data, _file, _line);
++ if (!vxi)
++ return;
++
++ if (dir > 0)
++ __rlim_inc(&vxi->limit, res);
++ else
++ __rlim_dec(&vxi->limit, res);
++}
++
++static inline void __vx_add_cres(struct vx_info *vxi,
++ int res, int amount, void *_data, char *_file, int _line)
++{
++ if (VXD_RCRES_COND(res))
++ vxlprintk(1, "vx_add_cres[%5d,%s,%2d]: %5ld += %5d (%p)",
++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
++ amount, _data, _file, _line);
++ if (amount == 0)
++ return;
++ if (!vxi)
++ return;
++ __rlim_add(&vxi->limit, res, amount);
++}
++
++static inline
++int __vx_cres_adjust_max(struct _vx_limit *limit, int res, rlim_t value)
++{
++ int cond = (value > __rlim_rmax(limit, res));
++
++ if (cond)
++ __rlim_rmax(limit, res) = value;
++ return cond;
++}
++
++static inline
++int __vx_cres_adjust_min(struct _vx_limit *limit, int res, rlim_t value)
++{
++ int cond = (value < __rlim_rmin(limit, res));
++
++ if (cond)
++ __rlim_rmin(limit, res) = value;
++ return cond;
++}
++
++static inline
++void __vx_cres_fixup(struct _vx_limit *limit, int res, rlim_t value)
++{
++ if (!__vx_cres_adjust_max(limit, res, value))
++ __vx_cres_adjust_min(limit, res, value);
++}
++
++
++/* return values:
++ +1 ... no limit hit
++ -1 ... over soft limit
++ 0 ... over hard limit */
++
++static inline int __vx_cres_avail(struct vx_info *vxi,
++ int res, int num, char *_file, int _line)
++{
++ struct _vx_limit *limit;
++ rlim_t value;
++
++ if (VXD_RLIMIT_COND(res))
++ vxlprintk(1, "vx_cres_avail[%5d,%s,%2d]: %5ld/%5ld > %5ld + %5d",
++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++ (vxi ? (long)__rlim_soft(&vxi->limit, res) : -1),
++ (vxi ? (long)__rlim_hard(&vxi->limit, res) : -1),
++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
++ num, _file, _line);
++ if (!vxi)
++ return 1;
++
++ limit = &vxi->limit;
++ value = __rlim_get(limit, res);
++
++ if (!__vx_cres_adjust_max(limit, res, value))
++ __vx_cres_adjust_min(limit, res, value);
++
++ if (num == 0)
++ return 1;
++
++ if (__rlim_soft(limit, res) == RLIM_INFINITY)
++ return -1;
++ if (value + num <= __rlim_soft(limit, res))
++ return -1;
++
++ if (__rlim_hard(limit, res) == RLIM_INFINITY)
++ return 1;
++ if (value + num <= __rlim_hard(limit, res))
++ return 1;
++
++ __rlim_hit(limit, res);
++ return 0;
++}
++
++
++static const int VLA_RSS[] = { RLIMIT_RSS, VLIMIT_ANON, VLIMIT_MAPPED, 0 };
++
++static inline
++rlim_t __vx_cres_array_sum(struct _vx_limit *limit, const int *array)
++{
++ rlim_t value, sum = 0;
++ int res;
++
++ while ((res = *array++)) {
++ value = __rlim_get(limit, res);
++ __vx_cres_fixup(limit, res, value);
++ sum += value;
++ }
++ return sum;
++}
++
++static inline
++rlim_t __vx_cres_array_fixup(struct _vx_limit *limit, const int *array)
++{
++ rlim_t value = __vx_cres_array_sum(limit, array + 1);
++ int res = *array;
++
++ if (value == __rlim_get(limit, res))
++ return value;
++
++ __rlim_set(limit, res, value);
++ /* now adjust min/max */
++ if (!__vx_cres_adjust_max(limit, res, value))
++ __vx_cres_adjust_min(limit, res, value);
++
++ return value;
++}
++
++static inline int __vx_cres_array_avail(struct vx_info *vxi,
++ const int *array, int num, char *_file, int _line)
++{
++ struct _vx_limit *limit;
++ rlim_t value = 0;
++ int res;
++
++ if (num == 0)
++ return 1;
++ if (!vxi)
++ return 1;
++
++ limit = &vxi->limit;
++ res = *array;
++ value = __vx_cres_array_sum(limit, array + 1);
++
++ __rlim_set(limit, res, value);
++ __vx_cres_fixup(limit, res, value);
++
++ return __vx_cres_avail(vxi, res, num, _file, _line);
++}
++
++
++static inline void vx_limit_fixup(struct _vx_limit *limit, int id)
++{
++ rlim_t value;
++ int res;
++
++ /* complex resources first */
++ if ((id < 0) || (id == RLIMIT_RSS))
++ __vx_cres_array_fixup(limit, VLA_RSS);
++
++ for (res = 0; res < NUM_LIMITS; res++) {
++ if ((id > 0) && (res != id))
++ continue;
++
++ value = __rlim_get(limit, res);
++ __vx_cres_fixup(limit, res, value);
++
++ /* not supposed to happen, maybe warn? */
++ if (__rlim_rmax(limit, res) > __rlim_hard(limit, res))
++ __rlim_rmax(limit, res) = __rlim_hard(limit, res);
++ }
++}
++
++
++#endif /* __KERNEL__ */
++#endif /* _VX_LIMIT_INT_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/monitor.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/monitor.h
+--- linux-2.6.32.1/include/linux/vserver/monitor.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/monitor.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,96 @@
++#ifndef _VX_MONITOR_H
++#define _VX_MONITOR_H
++
++#include <linux/types.h>
++
++enum {
++ VXM_UNUSED = 0,
++
++ VXM_SYNC = 0x10,
++
++ VXM_UPDATE = 0x20,
++ VXM_UPDATE_1,
++ VXM_UPDATE_2,
++
++ VXM_RQINFO_1 = 0x24,
++ VXM_RQINFO_2,
++
++ VXM_ACTIVATE = 0x40,
++ VXM_DEACTIVATE,
++ VXM_IDLE,
++
++ VXM_HOLD = 0x44,
++ VXM_UNHOLD,
++
++ VXM_MIGRATE = 0x48,
++ VXM_RESCHED,
++
++ /* all other bits are flags */
++ VXM_SCHED = 0x80,
++};
++
++struct _vxm_update_1 {
++ uint32_t tokens_max;
++ uint32_t fill_rate;
++ uint32_t interval;
++};
++
++struct _vxm_update_2 {
++ uint32_t tokens_min;
++ uint32_t fill_rate;
++ uint32_t interval;
++};
++
++struct _vxm_rqinfo_1 {
++ uint16_t running;
++ uint16_t onhold;
++ uint16_t iowait;
++ uint16_t uintr;
++ uint32_t idle_tokens;
++};
++
++struct _vxm_rqinfo_2 {
++ uint32_t norm_time;
++ uint32_t idle_time;
++ uint32_t idle_skip;
++};
++
++struct _vxm_sched {
++ uint32_t tokens;
++ uint32_t norm_time;
++ uint32_t idle_time;
++};
++
++struct _vxm_task {
++ uint16_t pid;
++ uint16_t state;
++};
++
++struct _vxm_event {
++ uint32_t jif;
++ union {
++ uint32_t seq;
++ uint32_t sec;
++ };
++ union {
++ uint32_t tokens;
++ uint32_t nsec;
++ struct _vxm_task tsk;
++ };
++};
++
++struct _vx_mon_entry {
++ uint16_t type;
++ uint16_t xid;
++ union {
++ struct _vxm_event ev;
++ struct _vxm_sched sd;
++ struct _vxm_update_1 u1;
++ struct _vxm_update_2 u2;
++ struct _vxm_rqinfo_1 q1;
++ struct _vxm_rqinfo_2 q2;
++ };
++};
++
++
++#endif /* _VX_MONITOR_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/network_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/network_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/network_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/network_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,150 @@
++#ifndef _VX_NETWORK_CMD_H
++#define _VX_NETWORK_CMD_H
++
++
++/* vinfo commands */
++
++#define VCMD_task_nid VC_CMD(VINFO, 2, 0)
++
++#ifdef __KERNEL__
++extern int vc_task_nid(uint32_t);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_nx_info VC_CMD(VINFO, 6, 0)
++
++struct vcmd_nx_info_v0 {
++ uint32_t nid;
++ /* more to come */
++};
++
++#ifdef __KERNEL__
++extern int vc_nx_info(struct nx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++#include <linux/in.h>
++#include <linux/in6.h>
++
++#define VCMD_net_create_v0 VC_CMD(VNET, 1, 0)
++#define VCMD_net_create VC_CMD(VNET, 1, 1)
++
++struct vcmd_net_create {
++ uint64_t flagword;
++};
++
++#define VCMD_net_migrate VC_CMD(NETMIG, 1, 0)
++
++#define VCMD_net_add VC_CMD(NETALT, 1, 0)
++#define VCMD_net_remove VC_CMD(NETALT, 2, 0)
++
++struct vcmd_net_addr_v0 {
++ uint16_t type;
++ uint16_t count;
++ struct in_addr ip[4];
++ struct in_addr mask[4];
++};
++
++#define VCMD_net_add_ipv4 VC_CMD(NETALT, 1, 1)
++#define VCMD_net_remove_ipv4 VC_CMD(NETALT, 2, 1)
++
++struct vcmd_net_addr_ipv4_v1 {
++ uint16_t type;
++ uint16_t flags;
++ struct in_addr ip;
++ struct in_addr mask;
++};
++
++#define VCMD_net_add_ipv6 VC_CMD(NETALT, 3, 1)
++#define VCMD_net_remove_ipv6 VC_CMD(NETALT, 4, 1)
++
++struct vcmd_net_addr_ipv6_v1 {
++ uint16_t type;
++ uint16_t flags;
++ uint32_t prefix;
++ struct in6_addr ip;
++ struct in6_addr mask;
++};
++
++#define VCMD_add_match_ipv4 VC_CMD(NETALT, 5, 0)
++#define VCMD_get_match_ipv4 VC_CMD(NETALT, 6, 0)
++
++struct vcmd_match_ipv4_v0 {
++ uint16_t type;
++ uint16_t flags;
++ uint16_t parent;
++ uint16_t prefix;
++ struct in_addr ip;
++ struct in_addr ip2;
++ struct in_addr mask;
++};
++
++#define VCMD_add_match_ipv6 VC_CMD(NETALT, 7, 0)
++#define VCMD_get_match_ipv6 VC_CMD(NETALT, 8, 0)
++
++struct vcmd_match_ipv6_v0 {
++ uint16_t type;
++ uint16_t flags;
++ uint16_t parent;
++ uint16_t prefix;
++ struct in6_addr ip;
++ struct in6_addr ip2;
++ struct in6_addr mask;
++};
++
++
++#ifdef __KERNEL__
++extern int vc_net_create(uint32_t, void __user *);
++extern int vc_net_migrate(struct nx_info *, void __user *);
++
++extern int vc_net_add(struct nx_info *, void __user *);
++extern int vc_net_remove(struct nx_info *, void __user *);
++
++extern int vc_net_add_ipv4(struct nx_info *, void __user *);
++extern int vc_net_remove_ipv4(struct nx_info *, void __user *);
++
++extern int vc_net_add_ipv6(struct nx_info *, void __user *);
++extern int vc_net_remove_ipv6(struct nx_info *, void __user *);
++
++extern int vc_add_match_ipv4(struct nx_info *, void __user *);
++extern int vc_get_match_ipv4(struct nx_info *, void __user *);
++
++extern int vc_add_match_ipv6(struct nx_info *, void __user *);
++extern int vc_get_match_ipv6(struct nx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* flag commands */
++
++#define VCMD_get_nflags VC_CMD(FLAGS, 5, 0)
++#define VCMD_set_nflags VC_CMD(FLAGS, 6, 0)
++
++struct vcmd_net_flags_v0 {
++ uint64_t flagword;
++ uint64_t mask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_nflags(struct nx_info *, void __user *);
++extern int vc_set_nflags(struct nx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* network caps commands */
++
++#define VCMD_get_ncaps VC_CMD(FLAGS, 7, 0)
++#define VCMD_set_ncaps VC_CMD(FLAGS, 8, 0)
++
++struct vcmd_net_caps_v0 {
++ uint64_t ncaps;
++ uint64_t cmask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_ncaps(struct nx_info *, void __user *);
++extern int vc_set_ncaps(struct nx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CONTEXT_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/network.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/network.h
+--- linux-2.6.32.1/include/linux/vserver/network.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/network.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,146 @@
++#ifndef _VX_NETWORK_H
++#define _VX_NETWORK_H
++
++#include <linux/types.h>
++
++
++#define MAX_N_CONTEXT 65535 /* Arbitrary limit */
++
++
++/* network flags */
++
++#define NXF_INFO_PRIVATE 0x00000008
++
++#define NXF_SINGLE_IP 0x00000100
++#define NXF_LBACK_REMAP 0x00000200
++#define NXF_LBACK_ALLOW 0x00000400
++
++#define NXF_HIDE_NETIF 0x02000000
++#define NXF_HIDE_LBACK 0x04000000
++
++#define NXF_STATE_SETUP (1ULL << 32)
++#define NXF_STATE_ADMIN (1ULL << 34)
++
++#define NXF_SC_HELPER (1ULL << 36)
++#define NXF_PERSISTENT (1ULL << 38)
++
++#define NXF_ONE_TIME (0x0005ULL << 32)
++
++
++#define NXF_INIT_SET (__nxf_init_set())
++
++static inline uint64_t __nxf_init_set(void) {
++ return NXF_STATE_ADMIN
++#ifdef CONFIG_VSERVER_AUTO_LBACK
++ | NXF_LBACK_REMAP
++ | NXF_HIDE_LBACK
++#endif
++#ifdef CONFIG_VSERVER_AUTO_SINGLE
++ | NXF_SINGLE_IP
++#endif
++ | NXF_HIDE_NETIF;
++}
++
++
++/* network caps */
++
++#define NXC_TUN_CREATE 0x00000001
++
++#define NXC_RAW_ICMP 0x00000100
++
++
++/* address types */
++
++#define NXA_TYPE_IPV4 0x0001
++#define NXA_TYPE_IPV6 0x0002
++
++#define NXA_TYPE_NONE 0x0000
++#define NXA_TYPE_ANY 0x00FF
++
++#define NXA_TYPE_ADDR 0x0010
++#define NXA_TYPE_MASK 0x0020
++#define NXA_TYPE_RANGE 0x0040
++
++#define NXA_MASK_ALL (NXA_TYPE_ADDR | NXA_TYPE_MASK | NXA_TYPE_RANGE)
++
++#define NXA_MOD_BCAST 0x0100
++#define NXA_MOD_LBACK 0x0200
++
++#define NXA_LOOPBACK 0x1000
++
++#define NXA_MASK_BIND (NXA_MASK_ALL | NXA_MOD_BCAST | NXA_MOD_LBACK)
++#define NXA_MASK_SHOW (NXA_MASK_ALL | NXA_LOOPBACK)
++
++#ifdef __KERNEL__
++
++#include <linux/list.h>
++#include <linux/spinlock.h>
++#include <linux/rcupdate.h>
++#include <linux/in.h>
++#include <linux/in6.h>
++#include <asm/atomic.h>
++
++struct nx_addr_v4 {
++ struct nx_addr_v4 *next;
++ struct in_addr ip[2];
++ struct in_addr mask;
++ uint16_t type;
++ uint16_t flags;
++};
++
++struct nx_addr_v6 {
++ struct nx_addr_v6 *next;
++ struct in6_addr ip;
++ struct in6_addr mask;
++ uint32_t prefix;
++ uint16_t type;
++ uint16_t flags;
++};
++
++struct nx_info {
++ struct hlist_node nx_hlist; /* linked list of nxinfos */
++ nid_t nx_id; /* vnet id */
++ atomic_t nx_usecnt; /* usage count */
++ atomic_t nx_tasks; /* tasks count */
++ int nx_state; /* context state */
++
++ uint64_t nx_flags; /* network flag word */
++ uint64_t nx_ncaps; /* network capabilities */
++
++ struct in_addr v4_lback; /* Loopback address */
++ struct in_addr v4_bcast; /* Broadcast address */
++ struct nx_addr_v4 v4; /* First/Single ipv4 address */
++#ifdef CONFIG_IPV6
++ struct nx_addr_v6 v6; /* First/Single ipv6 address */
++#endif
++ char nx_name[65]; /* network context name */
++};
++
++
++/* status flags */
++
++#define NXS_HASHED 0x0001
++#define NXS_SHUTDOWN 0x0100
++#define NXS_RELEASED 0x8000
++
++extern struct nx_info *lookup_nx_info(int);
++
++extern int get_nid_list(int, unsigned int *, int);
++extern int nid_is_hashed(nid_t);
++
++extern int nx_migrate_task(struct task_struct *, struct nx_info *);
++
++extern long vs_net_change(struct nx_info *, unsigned int);
++
++struct sock;
++
++
++#define NX_IPV4(n) ((n)->v4.type != NXA_TYPE_NONE)
++#ifdef CONFIG_IPV6
++#define NX_IPV6(n) ((n)->v6.type != NXA_TYPE_NONE)
++#else
++#define NX_IPV6(n) (0)
++#endif
++
++#endif /* __KERNEL__ */
++#endif /* _VX_NETWORK_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/percpu.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/percpu.h
+--- linux-2.6.32.1/include/linux/vserver/percpu.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/percpu.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,14 @@
++#ifndef _VX_PERCPU_H
++#define _VX_PERCPU_H
++
++#include "cvirt_def.h"
++#include "sched_def.h"
++
++struct _vx_percpu {
++ struct _vx_cvirt_pc cvirt;
++ struct _vx_sched_pc sched;
++};
++
++#define PERCPU_PERCTX (sizeof(struct _vx_percpu))
++
++#endif /* _VX_PERCPU_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/pid.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/pid.h
+--- linux-2.6.32.1/include/linux/vserver/pid.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/pid.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,51 @@
++#ifndef _VSERVER_PID_H
++#define _VSERVER_PID_H
++
++/* pid faking stuff */
++
++#define vx_info_map_pid(v, p) \
++ __vx_info_map_pid((v), (p), __func__, __FILE__, __LINE__)
++#define vx_info_map_tgid(v,p) vx_info_map_pid(v,p)
++#define vx_map_pid(p) vx_info_map_pid(current_vx_info(), p)
++#define vx_map_tgid(p) vx_map_pid(p)
++
++static inline int __vx_info_map_pid(struct vx_info *vxi, int pid,
++ const char *func, const char *file, int line)
++{
++ if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) {
++ vxfprintk(VXD_CBIT(cvirt, 2),
++ "vx_map_tgid: %p/%llx: %d -> %d",
++ vxi, (long long)vxi->vx_flags, pid,
++ (pid && pid == vxi->vx_initpid) ? 1 : pid,
++ func, file, line);
++ if (pid == 0)
++ return 0;
++ if (pid == vxi->vx_initpid)
++ return 1;
++ }
++ return pid;
++}
++
++#define vx_info_rmap_pid(v, p) \
++ __vx_info_rmap_pid((v), (p), __func__, __FILE__, __LINE__)
++#define vx_rmap_pid(p) vx_info_rmap_pid(current_vx_info(), p)
++#define vx_rmap_tgid(p) vx_rmap_pid(p)
++
++static inline int __vx_info_rmap_pid(struct vx_info *vxi, int pid,
++ const char *func, const char *file, int line)
++{
++ if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) {
++ vxfprintk(VXD_CBIT(cvirt, 2),
++ "vx_rmap_tgid: %p/%llx: %d -> %d",
++ vxi, (long long)vxi->vx_flags, pid,
++ (pid == 1) ? vxi->vx_initpid : pid,
++ func, file, line);
++ if ((pid == 1) && vxi->vx_initpid)
++ return vxi->vx_initpid;
++ if (pid == vxi->vx_initpid)
++ return ~0U;
++ }
++ return pid;
++}
++
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/sched_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/sched_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/sched_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/sched_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,108 @@
++#ifndef _VX_SCHED_CMD_H
++#define _VX_SCHED_CMD_H
++
++
++/* sched vserver commands */
++
++#define VCMD_set_sched_v2 VC_CMD(SCHED, 1, 2)
++#define VCMD_set_sched_v3 VC_CMD(SCHED, 1, 3)
++#define VCMD_set_sched_v4 VC_CMD(SCHED, 1, 4)
++
++struct vcmd_set_sched_v2 {
++ int32_t fill_rate;
++ int32_t interval;
++ int32_t tokens;
++ int32_t tokens_min;
++ int32_t tokens_max;
++ uint64_t cpu_mask;
++};
++
++struct vcmd_set_sched_v3 {
++ uint32_t set_mask;
++ int32_t fill_rate;
++ int32_t interval;
++ int32_t tokens;
++ int32_t tokens_min;
++ int32_t tokens_max;
++ int32_t priority_bias;
++};
++
++struct vcmd_set_sched_v4 {
++ uint32_t set_mask;
++ int32_t fill_rate;
++ int32_t interval;
++ int32_t tokens;
++ int32_t tokens_min;
++ int32_t tokens_max;
++ int32_t prio_bias;
++ int32_t cpu_id;
++ int32_t bucket_id;
++};
++
++#define VCMD_set_sched VC_CMD(SCHED, 1, 5)
++#define VCMD_get_sched VC_CMD(SCHED, 2, 5)
++
++struct vcmd_sched_v5 {
++ uint32_t mask;
++ int32_t cpu_id;
++ int32_t bucket_id;
++ int32_t fill_rate[2];
++ int32_t interval[2];
++ int32_t tokens;
++ int32_t tokens_min;
++ int32_t tokens_max;
++ int32_t prio_bias;
++};
++
++#define VXSM_FILL_RATE 0x0001
++#define VXSM_INTERVAL 0x0002
++#define VXSM_FILL_RATE2 0x0004
++#define VXSM_INTERVAL2 0x0008
++#define VXSM_TOKENS 0x0010
++#define VXSM_TOKENS_MIN 0x0020
++#define VXSM_TOKENS_MAX 0x0040
++#define VXSM_PRIO_BIAS 0x0100
++
++#define VXSM_IDLE_TIME 0x0200
++#define VXSM_FORCE 0x0400
++
++#define VXSM_V3_MASK 0x0173
++#define VXSM_SET_MASK 0x01FF
++
++#define VXSM_CPU_ID 0x1000
++#define VXSM_BUCKET_ID 0x2000
++
++#define VXSM_MSEC 0x4000
++
++#define SCHED_KEEP (-2) /* only for v2 */
++
++#ifdef __KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_set_sched_v2(struct vx_info *, void __user *);
++extern int vc_set_sched_v3(struct vx_info *, void __user *);
++extern int vc_set_sched_v4(struct vx_info *, void __user *);
++extern int vc_set_sched(struct vx_info *, void __user *);
++extern int vc_get_sched(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_sched_info VC_CMD(SCHED, 3, 0)
++
++struct vcmd_sched_info {
++ int32_t cpu_id;
++ int32_t bucket_id;
++ uint64_t user_msec;
++ uint64_t sys_msec;
++ uint64_t hold_msec;
++ uint32_t token_usec;
++ int32_t vavavoom;
++};
++
++#ifdef __KERNEL__
++
++extern int vc_sched_info(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_SCHED_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/sched_def.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/sched_def.h
+--- linux-2.6.32.1/include/linux/vserver/sched_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/sched_def.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,68 @@
++#ifndef _VX_SCHED_DEF_H
++#define _VX_SCHED_DEF_H
++
++#include <linux/spinlock.h>
++#include <linux/jiffies.h>
++#include <linux/cpumask.h>
++#include <asm/atomic.h>
++#include <asm/param.h>
++
++
++/* context sub struct */
++
++struct _vx_sched {
++ spinlock_t tokens_lock; /* lock for token bucket */
++
++ int tokens; /* number of CPU tokens */
++ int fill_rate[2]; /* Fill rate: add X tokens... */
++ int interval[2]; /* Divisor: per Y jiffies */
++ int tokens_min; /* Limit: minimum for unhold */
++ int tokens_max; /* Limit: no more than N tokens */
++
++ int prio_bias; /* bias offset for priority */
++
++ unsigned update_mask; /* which features should be updated */
++ cpumask_t update; /* CPUs which should update */
++};
++
++struct _vx_sched_pc {
++ int tokens; /* number of CPU tokens */
++ int flags; /* bucket flags */
++
++ int fill_rate[2]; /* Fill rate: add X tokens... */
++ int interval[2]; /* Divisor: per Y jiffies */
++ int tokens_min; /* Limit: minimum for unhold */
++ int tokens_max; /* Limit: no more than N tokens */
++
++ int prio_bias; /* bias offset for priority */
++ int vavavoom; /* last calculated vavavoom */
++
++ unsigned long norm_time; /* last time accounted */
++ unsigned long idle_time; /* non linear time for fair sched */
++ unsigned long token_time; /* token time for accounting */
++ unsigned long onhold; /* jiffies when put on hold */
++
++ uint64_t user_ticks; /* token tick events */
++ uint64_t sys_ticks; /* token tick events */
++ uint64_t hold_ticks; /* token ticks paused */
++};
++
++
++#define VXSF_ONHOLD 0x0001
++#define VXSF_IDLE_TIME 0x0100
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++static inline void __dump_vx_sched(struct _vx_sched *sched)
++{
++ printk("\t_vx_sched:\n");
++ printk("\t tokens: %4d/%4d, %4d/%4d, %4d, %4d\n",
++ sched->fill_rate[0], sched->interval[0],
++ sched->fill_rate[1], sched->interval[1],
++ sched->tokens_min, sched->tokens_max);
++ printk("\t priority = %4d\n", sched->prio_bias);
++}
++
++#endif
++
++#endif /* _VX_SCHED_DEF_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/sched.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/sched.h
+--- linux-2.6.32.1/include/linux/vserver/sched.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/sched.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,26 @@
++#ifndef _VX_SCHED_H
++#define _VX_SCHED_H
++
++
++#ifdef __KERNEL__
++
++struct timespec;
++
++void vx_vsi_uptime(struct timespec *, struct timespec *);
++
++
++struct vx_info;
++
++void vx_update_load(struct vx_info *);
++
++
++int vx_tokens_recalc(struct _vx_sched_pc *,
++ unsigned long *, unsigned long *, int [2]);
++
++void vx_update_sched_param(struct _vx_sched *sched,
++ struct _vx_sched_pc *sched_pc);
++
++#endif /* __KERNEL__ */
++#else /* _VX_SCHED_H */
++#warning duplicate inclusion
++#endif /* _VX_SCHED_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/signal_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/signal_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/signal_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/signal_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,43 @@
++#ifndef _VX_SIGNAL_CMD_H
++#define _VX_SIGNAL_CMD_H
++
++
++/* signalling vserver commands */
++
++#define VCMD_ctx_kill VC_CMD(PROCTRL, 1, 0)
++#define VCMD_wait_exit VC_CMD(EVENT, 99, 0)
++
++struct vcmd_ctx_kill_v0 {
++ int32_t pid;
++ int32_t sig;
++};
++
++struct vcmd_wait_exit_v0 {
++ int32_t reboot_cmd;
++ int32_t exit_code;
++};
++
++#ifdef __KERNEL__
++
++extern int vc_ctx_kill(struct vx_info *, void __user *);
++extern int vc_wait_exit(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++/* process alteration commands */
++
++#define VCMD_get_pflags VC_CMD(PROCALT, 5, 0)
++#define VCMD_set_pflags VC_CMD(PROCALT, 6, 0)
++
++struct vcmd_pflags_v0 {
++ uint32_t flagword;
++ uint32_t mask;
++};
++
++#ifdef __KERNEL__
++
++extern int vc_get_pflags(uint32_t pid, void __user *);
++extern int vc_set_pflags(uint32_t pid, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_SIGNAL_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/signal.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/signal.h
+--- linux-2.6.32.1/include/linux/vserver/signal.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/signal.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,14 @@
++#ifndef _VX_SIGNAL_H
++#define _VX_SIGNAL_H
++
++
++#ifdef __KERNEL__
++
++struct vx_info;
++
++int vx_info_kill(struct vx_info *, int, int);
++
++#endif /* __KERNEL__ */
++#else /* _VX_SIGNAL_H */
++#warning duplicate inclusion
++#endif /* _VX_SIGNAL_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/space_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/space_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/space_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/space_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,38 @@
++#ifndef _VX_SPACE_CMD_H
++#define _VX_SPACE_CMD_H
++
++
++#define VCMD_enter_space_v0 VC_CMD(PROCALT, 1, 0)
++#define VCMD_enter_space_v1 VC_CMD(PROCALT, 1, 1)
++#define VCMD_enter_space VC_CMD(PROCALT, 1, 2)
++
++#define VCMD_set_space_v0 VC_CMD(PROCALT, 3, 0)
++#define VCMD_set_space_v1 VC_CMD(PROCALT, 3, 1)
++#define VCMD_set_space VC_CMD(PROCALT, 3, 2)
++
++#define VCMD_get_space_mask_v0 VC_CMD(PROCALT, 4, 0)
++
++#define VCMD_get_space_mask VC_CMD(VSPACE, 0, 1)
++#define VCMD_get_space_default VC_CMD(VSPACE, 1, 0)
++
++
++struct vcmd_space_mask_v1 {
++ uint64_t mask;
++};
++
++struct vcmd_space_mask_v2 {
++ uint64_t mask;
++ uint32_t index;
++};
++
++
++#ifdef __KERNEL__
++
++extern int vc_enter_space_v1(struct vx_info *, void __user *);
++extern int vc_set_space_v1(struct vx_info *, void __user *);
++extern int vc_enter_space(struct vx_info *, void __user *);
++extern int vc_set_space(struct vx_info *, void __user *);
++extern int vc_get_space_mask(void __user *, int);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_SPACE_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/space.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/space.h
+--- linux-2.6.32.1/include/linux/vserver/space.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/space.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,12 @@
++#ifndef _VX_SPACE_H
++#define _VX_SPACE_H
++
++#include <linux/types.h>
++
++struct vx_info;
++
++int vx_set_space(struct vx_info *vxi, unsigned long mask, unsigned index);
++
++#else /* _VX_SPACE_H */
++#warning duplicate inclusion
++#endif /* _VX_SPACE_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/switch.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/switch.h
+--- linux-2.6.32.1/include/linux/vserver/switch.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/switch.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,98 @@
++#ifndef _VX_SWITCH_H
++#define _VX_SWITCH_H
++
++#include <linux/types.h>
++
++
++#define VC_CATEGORY(c) (((c) >> 24) & 0x3F)
++#define VC_COMMAND(c) (((c) >> 16) & 0xFF)
++#define VC_VERSION(c) ((c) & 0xFFF)
++
++#define VC_CMD(c, i, v) ((((VC_CAT_ ## c) & 0x3F) << 24) \
++ | (((i) & 0xFF) << 16) | ((v) & 0xFFF))
++
++/*
++
++ Syscall Matrix V2.8
++
++ |VERSION|CREATE |MODIFY |MIGRATE|CONTROL|EXPERIM| |SPECIAL|SPECIAL|
++ |STATS |DESTROY|ALTER |CHANGE |LIMIT |TEST | | | |
++ |INFO |SETUP | |MOVE | | | | | |
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ SYSTEM |VERSION|VSETUP |VHOST | | | | |DEVICE | |
++ HOST | 00| 01| 02| 03| 04| 05| | 06| 07|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ CPU | |VPROC |PROCALT|PROCMIG|PROCTRL| | |SCHED. | |
++ PROCESS| 08| 09| 10| 11| 12| 13| | 14| 15|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ MEMORY | | | | |MEMCTRL| | |SWAP | |
++ | 16| 17| 18| 19| 20| 21| | 22| 23|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ NETWORK| |VNET |NETALT |NETMIG |NETCTL | | |SERIAL | |
++ | 24| 25| 26| 27| 28| 29| | 30| 31|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ DISK | | | |TAGMIG |DLIMIT | | |INODE | |
++ VFS | 32| 33| 34| 35| 36| 37| | 38| 39|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ OTHER |VSTAT | | | | | | |VINFO | |
++ | 40| 41| 42| 43| 44| 45| | 46| 47|
++ =======+=======+=======+=======+=======+=======+=======+ +=======+=======+
++ SPECIAL|EVENT | | | |FLAGS | | |VSPACE | |
++ | 48| 49| 50| 51| 52| 53| | 54| 55|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ SPECIAL|DEBUG | | | |RLIMIT |SYSCALL| | |COMPAT |
++ | 56| 57| 58| 59| 60|TEST 61| | 62| 63|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++
++*/
++
++#define VC_CAT_VERSION 0
++
++#define VC_CAT_VSETUP 1
++#define VC_CAT_VHOST 2
++
++#define VC_CAT_DEVICE 6
++
++#define VC_CAT_VPROC 9
++#define VC_CAT_PROCALT 10
++#define VC_CAT_PROCMIG 11
++#define VC_CAT_PROCTRL 12
++
++#define VC_CAT_SCHED 14
++#define VC_CAT_MEMCTRL 20
++
++#define VC_CAT_VNET 25
++#define VC_CAT_NETALT 26
++#define VC_CAT_NETMIG 27
++#define VC_CAT_NETCTRL 28
++
++#define VC_CAT_TAGMIG 35
++#define VC_CAT_DLIMIT 36
++#define VC_CAT_INODE 38
++
++#define VC_CAT_VSTAT 40
++#define VC_CAT_VINFO 46
++#define VC_CAT_EVENT 48
++
++#define VC_CAT_FLAGS 52
++#define VC_CAT_VSPACE 54
++#define VC_CAT_DEBUG 56
++#define VC_CAT_RLIMIT 60
++
++#define VC_CAT_SYSTEST 61
++#define VC_CAT_COMPAT 63
++
++/* query version */
++
++#define VCMD_get_version VC_CMD(VERSION, 0, 0)
++#define VCMD_get_vci VC_CMD(VERSION, 1, 0)
++
++
++#ifdef __KERNEL__
++
++#include <linux/errno.h>
++
++#endif /* __KERNEL__ */
++
++#endif /* _VX_SWITCH_H */
++
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/tag_cmd.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/tag_cmd.h
+--- linux-2.6.32.1/include/linux/vserver/tag_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/tag_cmd.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,22 @@
++#ifndef _VX_TAG_CMD_H
++#define _VX_TAG_CMD_H
++
++
++/* vinfo commands */
++
++#define VCMD_task_tag VC_CMD(VINFO, 3, 0)
++
++#ifdef __KERNEL__
++extern int vc_task_tag(uint32_t);
++
++#endif /* __KERNEL__ */
++
++/* context commands */
++
++#define VCMD_tag_migrate VC_CMD(TAGMIG, 1, 0)
++
++#ifdef __KERNEL__
++extern int vc_tag_migrate(uint32_t);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_TAG_CMD_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vserver/tag.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/tag.h
+--- linux-2.6.32.1/include/linux/vserver/tag.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vserver/tag.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,143 @@
++#ifndef _DX_TAG_H
++#define _DX_TAG_H
++
++#include <linux/types.h>
++
++
++#define DX_TAG(in) (IS_TAGGED(in))
++
++
++#ifdef CONFIG_TAG_NFSD
++#define DX_TAG_NFSD 1
++#else
++#define DX_TAG_NFSD 0
++#endif
++
++
++#ifdef CONFIG_TAGGING_NONE
++
++#define MAX_UID 0xFFFFFFFF
++#define MAX_GID 0xFFFFFFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) (0)
++
++#define TAGINO_UID(cond, uid, tag) (uid)
++#define TAGINO_GID(cond, gid, tag) (gid)
++
++#endif
++
++
++#ifdef CONFIG_TAGGING_GID16
++
++#define MAX_UID 0xFFFFFFFF
++#define MAX_GID 0x0000FFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) \
++ ((cond) ? (((gid) >> 16) & 0xFFFF) : 0)
++
++#define TAGINO_UID(cond, uid, tag) (uid)
++#define TAGINO_GID(cond, gid, tag) \
++ ((cond) ? (((gid) & 0xFFFF) | ((tag) << 16)) : (gid))
++
++#endif
++
++
++#ifdef CONFIG_TAGGING_ID24
++
++#define MAX_UID 0x00FFFFFF
++#define MAX_GID 0x00FFFFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) \
++ ((cond) ? ((((uid) >> 16) & 0xFF00) | (((gid) >> 24) & 0xFF)) : 0)
++
++#define TAGINO_UID(cond, uid, tag) \
++ ((cond) ? (((uid) & 0xFFFFFF) | (((tag) & 0xFF00) << 16)) : (uid))
++#define TAGINO_GID(cond, gid, tag) \
++ ((cond) ? (((gid) & 0xFFFFFF) | (((tag) & 0x00FF) << 24)) : (gid))
++
++#endif
++
++
++#ifdef CONFIG_TAGGING_UID16
++
++#define MAX_UID 0x0000FFFF
++#define MAX_GID 0xFFFFFFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) \
++ ((cond) ? (((uid) >> 16) & 0xFFFF) : 0)
++
++#define TAGINO_UID(cond, uid, tag) \
++ ((cond) ? (((uid) & 0xFFFF) | ((tag) << 16)) : (uid))
++#define TAGINO_GID(cond, gid, tag) (gid)
++
++#endif
++
++
++#ifdef CONFIG_TAGGING_INTERN
++
++#define MAX_UID 0xFFFFFFFF
++#define MAX_GID 0xFFFFFFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) \
++ ((cond) ? (tag) : 0)
++
++#define TAGINO_UID(cond, uid, tag) (uid)
++#define TAGINO_GID(cond, gid, tag) (gid)
++
++#endif
++
++
++#ifndef CONFIG_TAGGING_NONE
++#define dx_current_fstag(sb) \
++ ((sb)->s_flags & MS_TAGGED ? dx_current_tag() : 0)
++#else
++#define dx_current_fstag(sb) (0)
++#endif
++
++#ifndef CONFIG_TAGGING_INTERN
++#define TAGINO_TAG(cond, tag) (0)
++#else
++#define TAGINO_TAG(cond, tag) ((cond) ? (tag) : 0)
++#endif
++
++#define INOTAG_UID(cond, uid, gid) \
++ ((cond) ? ((uid) & MAX_UID) : (uid))
++#define INOTAG_GID(cond, uid, gid) \
++ ((cond) ? ((gid) & MAX_GID) : (gid))
++
++
++static inline uid_t dx_map_uid(uid_t uid)
++{
++ if ((uid > MAX_UID) && (uid != -1))
++ uid = -2;
++ return (uid & MAX_UID);
++}
++
++static inline gid_t dx_map_gid(gid_t gid)
++{
++ if ((gid > MAX_GID) && (gid != -1))
++ gid = -2;
++ return (gid & MAX_GID);
++}
++
++struct peer_tag {
++ int32_t xid;
++ int32_t nid;
++};
++
++#define dx_notagcheck(sb) ((sb) && ((sb)->s_flags & MS_NOTAGCHECK))
++
++int dx_parse_tag(char *string, tag_t *tag, int remove, int *mnt_flags,
++ unsigned long *flags);
++
++#ifdef CONFIG_PROPAGATE
++
++void __dx_propagate_tag(struct nameidata *nd, struct inode *inode);
++
++#define dx_propagate_tag(n, i) __dx_propagate_tag(n, i)
++
++#else
++#define dx_propagate_tag(n, i) do { } while (0)
++#endif
++
++#endif /* _DX_TAG_H */
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_inet6.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_inet6.h
+--- linux-2.6.32.1/include/linux/vs_inet6.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_inet6.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,246 @@
++#ifndef _VS_INET6_H
++#define _VS_INET6_H
++
++#include "vserver/base.h"
++#include "vserver/network.h"
++#include "vserver/debug.h"
++
++#include <net/ipv6.h>
++
++#define NXAV6(a) &(a)->ip, &(a)->mask, (a)->prefix, (a)->type
++#define NXAV6_FMT "[%pI6/%pI6/%d:%04x]"
++
++
++#ifdef CONFIG_IPV6
++
++static inline
++int v6_addr_match(struct nx_addr_v6 *nxa,
++ const struct in6_addr *addr, uint16_t mask)
++{
++ int ret = 0;
++
++ switch (nxa->type & mask) {
++ case NXA_TYPE_MASK:
++ ret = ipv6_masked_addr_cmp(&nxa->ip, &nxa->mask, addr);
++ break;
++ case NXA_TYPE_ADDR:
++ ret = ipv6_addr_equal(&nxa->ip, addr);
++ break;
++ case NXA_TYPE_ANY:
++ ret = 1;
++ break;
++ }
++ vxdprintk(VXD_CBIT(net, 0),
++ "v6_addr_match(%p" NXAV6_FMT ",%pI6,%04x) = %d",
++ nxa, NXAV6(nxa), addr, mask, ret);
++ return ret;
++}
++
++static inline
++int v6_addr_in_nx_info(struct nx_info *nxi,
++ const struct in6_addr *addr, uint16_t mask)
++{
++ struct nx_addr_v6 *nxa;
++ int ret = 1;
++
++ if (!nxi)
++ goto out;
++ for (nxa = &nxi->v6; nxa; nxa = nxa->next)
++ if (v6_addr_match(nxa, addr, mask))
++ goto out;
++ ret = 0;
++out:
++ vxdprintk(VXD_CBIT(net, 0),
++ "v6_addr_in_nx_info(%p[#%u],%pI6,%04x) = %d",
++ nxi, nxi ? nxi->nx_id : 0, addr, mask, ret);
++ return ret;
++}
++
++static inline
++int v6_nx_addr_match(struct nx_addr_v6 *nxa, struct nx_addr_v6 *addr, uint16_t mask)
++{
++ /* FIXME: needs full range checks */
++ return v6_addr_match(nxa, &addr->ip, mask);
++}
++
++static inline
++int v6_nx_addr_in_nx_info(struct nx_info *nxi, struct nx_addr_v6 *nxa, uint16_t mask)
++{
++ struct nx_addr_v6 *ptr;
++
++ for (ptr = &nxi->v6; ptr; ptr = ptr->next)
++ if (v6_nx_addr_match(ptr, nxa, mask))
++ return 1;
++ return 0;
++}
++
++
++/*
++ * Check if a given address matches for a socket
++ *
++ * nxi: the socket's nx_info if any
++ * addr: to be verified address
++ */
++static inline
++int v6_sock_addr_match (
++ struct nx_info *nxi,
++ struct inet_sock *inet,
++ struct in6_addr *addr)
++{
++ struct sock *sk = &inet->sk;
++ struct in6_addr *saddr = inet6_rcv_saddr(sk);
++
++ if (!ipv6_addr_any(addr) &&
++ ipv6_addr_equal(saddr, addr))
++ return 1;
++ if (ipv6_addr_any(saddr))
++ return v6_addr_in_nx_info(nxi, addr, -1);
++ return 0;
++}
++
++/*
++ * check if address is covered by socket
++ *
++ * sk: the socket to check against
++ * addr: the address in question (must be != 0)
++ */
++
++static inline
++int __v6_addr_match_socket(const struct sock *sk, struct nx_addr_v6 *nxa)
++{
++ struct nx_info *nxi = sk->sk_nx_info;
++ struct in6_addr *saddr = inet6_rcv_saddr(sk);
++
++ vxdprintk(VXD_CBIT(net, 5),
++ "__v6_addr_in_socket(%p," NXAV6_FMT ") %p:%pI6 %p;%lx",
++ sk, NXAV6(nxa), nxi, saddr, sk->sk_socket,
++ (sk->sk_socket?sk->sk_socket->flags:0));
++
++ if (!ipv6_addr_any(saddr)) { /* direct address match */
++ return v6_addr_match(nxa, saddr, -1);
++ } else if (nxi) { /* match against nx_info */
++ return v6_nx_addr_in_nx_info(nxi, nxa, -1);
++ } else { /* unrestricted any socket */
++ return 1;
++ }
++}
++
++
++/* inet related checks and helpers */
++
++
++struct in_ifaddr;
++struct net_device;
++struct sock;
++
++
++#include <linux/netdevice.h>
++#include <linux/inetdevice.h>
++#include <net/inet_timewait_sock.h>
++
++
++int dev_in_nx_info(struct net_device *, struct nx_info *);
++int v6_dev_in_nx_info(struct net_device *, struct nx_info *);
++int nx_v6_addr_conflict(struct nx_info *, struct nx_info *);
++
++
++
++static inline
++int v6_ifa_in_nx_info(struct inet6_ifaddr *ifa, struct nx_info *nxi)
++{
++ if (!nxi)
++ return 1;
++ if (!ifa)
++ return 0;
++ return v6_addr_in_nx_info(nxi, &ifa->addr, -1);
++}
++
++static inline
++int nx_v6_ifa_visible(struct nx_info *nxi, struct inet6_ifaddr *ifa)
++{
++ vxdprintk(VXD_CBIT(net, 1), "nx_v6_ifa_visible(%p[#%u],%p) %d",
++ nxi, nxi ? nxi->nx_id : 0, ifa,
++ nxi ? v6_ifa_in_nx_info(ifa, nxi) : 0);
++
++ if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
++ return 1;
++ if (v6_ifa_in_nx_info(ifa, nxi))
++ return 1;
++ return 0;
++}
++
++
++struct nx_v6_sock_addr {
++ struct in6_addr saddr; /* Address used for validation */
++ struct in6_addr baddr; /* Address used for socket bind */
++};
++
++static inline
++int v6_map_sock_addr(struct inet_sock *inet, struct sockaddr_in6 *addr,
++ struct nx_v6_sock_addr *nsa)
++{
++ // struct sock *sk = &inet->sk;
++ // struct nx_info *nxi = sk->sk_nx_info;
++ struct in6_addr saddr = addr->sin6_addr;
++ struct in6_addr baddr = saddr;
++
++ nsa->saddr = saddr;
++ nsa->baddr = baddr;
++ return 0;
++}
++
++static inline
++void v6_set_sock_addr(struct inet_sock *inet, struct nx_v6_sock_addr *nsa)
++{
++ // struct sock *sk = &inet->sk;
++ // struct in6_addr *saddr = inet6_rcv_saddr(sk);
++
++ // *saddr = nsa->baddr;
++ // inet->saddr = nsa->baddr;
++}
++
++static inline
++int nx_info_has_v6(struct nx_info *nxi)
++{
++ if (!nxi)
++ return 1;
++ if (NX_IPV6(nxi))
++ return 1;
++ return 0;
++}
++
++#else /* CONFIG_IPV6 */
++
++static inline
++int nx_v6_dev_visible(struct nx_info *n, struct net_device *d)
++{
++ return 1;
++}
++
++
++static inline
++int nx_v6_addr_conflict(struct nx_info *n, uint32_t a, const struct sock *s)
++{
++ return 1;
++}
++
++static inline
++int v6_ifa_in_nx_info(struct in_ifaddr *a, struct nx_info *n)
++{
++ return 1;
++}
++
++static inline
++int nx_info_has_v6(struct nx_info *nxi)
++{
++ return 0;
++}
++
++#endif /* CONFIG_IPV6 */
++
++#define current_nx_info_has_v6() \
++ nx_info_has_v6(current_nx_info())
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_inet.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_inet.h
+--- linux-2.6.32.1/include/linux/vs_inet.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_inet.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,342 @@
++#ifndef _VS_INET_H
++#define _VS_INET_H
++
++#include "vserver/base.h"
++#include "vserver/network.h"
++#include "vserver/debug.h"
++
++#define IPI_LOOPBACK htonl(INADDR_LOOPBACK)
++
++#define NXAV4(a) NIPQUAD((a)->ip[0]), NIPQUAD((a)->ip[1]), \
++ NIPQUAD((a)->mask), (a)->type
++#define NXAV4_FMT "[" NIPQUAD_FMT "-" NIPQUAD_FMT "/" NIPQUAD_FMT ":%04x]"
++
++
++static inline
++int v4_addr_match(struct nx_addr_v4 *nxa, __be32 addr, uint16_t tmask)
++{
++ __be32 ip = nxa->ip[0].s_addr;
++ __be32 mask = nxa->mask.s_addr;
++ __be32 bcast = ip | ~mask;
++ int ret = 0;
++
++ switch (nxa->type & tmask) {
++ case NXA_TYPE_MASK:
++ ret = (ip == (addr & mask));
++ break;
++ case NXA_TYPE_ADDR:
++ ret = 3;
++ if (addr == ip)
++ break;
++ /* fall through to broadcast */
++ case NXA_MOD_BCAST:
++ ret = ((tmask & NXA_MOD_BCAST) && (addr == bcast));
++ break;
++ case NXA_TYPE_RANGE:
++ ret = ((nxa->ip[0].s_addr <= addr) &&
++ (nxa->ip[1].s_addr > addr));
++ break;
++ case NXA_TYPE_ANY:
++ ret = 2;
++ break;
++ }
++
++ vxdprintk(VXD_CBIT(net, 0),
++ "v4_addr_match(%p" NXAV4_FMT "," NIPQUAD_FMT ",%04x) = %d",
++ nxa, NXAV4(nxa), NIPQUAD(addr), tmask, ret);
++ return ret;
++}
++
++static inline
++int v4_addr_in_nx_info(struct nx_info *nxi, __be32 addr, uint16_t tmask)
++{
++ struct nx_addr_v4 *nxa;
++ int ret = 1;
++
++ if (!nxi)
++ goto out;
++
++ ret = 2;
++ /* allow 127.0.0.1 when remapping lback */
++ if ((tmask & NXA_LOOPBACK) &&
++ (addr == IPI_LOOPBACK) &&
++ nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
++ goto out;
++ ret = 3;
++ /* check for lback address */
++ if ((tmask & NXA_MOD_LBACK) &&
++ (nxi->v4_lback.s_addr == addr))
++ goto out;
++ ret = 4;
++ /* check for broadcast address */
++ if ((tmask & NXA_MOD_BCAST) &&
++ (nxi->v4_bcast.s_addr == addr))
++ goto out;
++ ret = 5;
++ /* check for v4 addresses */
++ for (nxa = &nxi->v4; nxa; nxa = nxa->next)
++ if (v4_addr_match(nxa, addr, tmask))
++ goto out;
++ ret = 0;
++out:
++ vxdprintk(VXD_CBIT(net, 0),
++ "v4_addr_in_nx_info(%p[#%u]," NIPQUAD_FMT ",%04x) = %d",
++ nxi, nxi ? nxi->nx_id : 0, NIPQUAD(addr), tmask, ret);
++ return ret;
++}
++
++static inline
++int v4_nx_addr_match(struct nx_addr_v4 *nxa, struct nx_addr_v4 *addr, uint16_t mask)
++{
++ /* FIXME: needs full range checks */
++ return v4_addr_match(nxa, addr->ip[0].s_addr, mask);
++}
++
++static inline
++int v4_nx_addr_in_nx_info(struct nx_info *nxi, struct nx_addr_v4 *nxa, uint16_t mask)
++{
++ struct nx_addr_v4 *ptr;
++
++ for (ptr = &nxi->v4; ptr; ptr = ptr->next)
++ if (v4_nx_addr_match(ptr, nxa, mask))
++ return 1;
++ return 0;
++}
++
++#include <net/inet_sock.h>
++
++/*
++ * Check if a given address matches for a socket
++ *
++ * nxi: the socket's nx_info if any
++ * addr: to be verified address
++ */
++static inline
++int v4_sock_addr_match (
++ struct nx_info *nxi,
++ struct inet_sock *inet,
++ __be32 addr)
++{
++ __be32 saddr = inet->rcv_saddr;
++ __be32 bcast = nxi ? nxi->v4_bcast.s_addr : INADDR_BROADCAST;
++
++ if (addr && (saddr == addr || bcast == addr))
++ return 1;
++ if (!saddr)
++ return v4_addr_in_nx_info(nxi, addr, NXA_MASK_BIND);
++ return 0;
++}
++
++
++/* inet related checks and helpers */
++
++
++struct in_ifaddr;
++struct net_device;
++struct sock;
++
++#ifdef CONFIG_INET
++
++#include <linux/netdevice.h>
++#include <linux/inetdevice.h>
++#include <net/inet_sock.h>
++#include <net/inet_timewait_sock.h>
++
++
++int dev_in_nx_info(struct net_device *, struct nx_info *);
++int v4_dev_in_nx_info(struct net_device *, struct nx_info *);
++int nx_v4_addr_conflict(struct nx_info *, struct nx_info *);
++
++
++/*
++ * check if address is covered by socket
++ *
++ * sk: the socket to check against
++ * addr: the address in question (must be != 0)
++ */
++
++static inline
++int __v4_addr_match_socket(const struct sock *sk, struct nx_addr_v4 *nxa)
++{
++ struct nx_info *nxi = sk->sk_nx_info;
++ __be32 saddr = inet_rcv_saddr(sk);
++
++ vxdprintk(VXD_CBIT(net, 5),
++ "__v4_addr_in_socket(%p," NXAV4_FMT ") %p:" NIPQUAD_FMT " %p;%lx",
++ sk, NXAV4(nxa), nxi, NIPQUAD(saddr), sk->sk_socket,
++ (sk->sk_socket?sk->sk_socket->flags:0));
++
++ if (saddr) { /* direct address match */
++ return v4_addr_match(nxa, saddr, -1);
++ } else if (nxi) { /* match against nx_info */
++ return v4_nx_addr_in_nx_info(nxi, nxa, -1);
++ } else { /* unrestricted any socket */
++ return 1;
++ }
++}
++
++
++
++static inline
++int nx_dev_visible(struct nx_info *nxi, struct net_device *dev)
++{
++ vxdprintk(VXD_CBIT(net, 1), "nx_dev_visible(%p[#%u],%p »%s«) %d",
++ nxi, nxi ? nxi->nx_id : 0, dev, dev->name,
++ nxi ? dev_in_nx_info(dev, nxi) : 0);
++
++ if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
++ return 1;
++ if (dev_in_nx_info(dev, nxi))
++ return 1;
++ return 0;
++}
++
++
++static inline
++int v4_ifa_in_nx_info(struct in_ifaddr *ifa, struct nx_info *nxi)
++{
++ if (!nxi)
++ return 1;
++ if (!ifa)
++ return 0;
++ return v4_addr_in_nx_info(nxi, ifa->ifa_local, NXA_MASK_SHOW);
++}
++
++static inline
++int nx_v4_ifa_visible(struct nx_info *nxi, struct in_ifaddr *ifa)
++{
++ vxdprintk(VXD_CBIT(net, 1), "nx_v4_ifa_visible(%p[#%u],%p) %d",
++ nxi, nxi ? nxi->nx_id : 0, ifa,
++ nxi ? v4_ifa_in_nx_info(ifa, nxi) : 0);
++
++ if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
++ return 1;
++ if (v4_ifa_in_nx_info(ifa, nxi))
++ return 1;
++ return 0;
++}
++
++
++struct nx_v4_sock_addr {
++ __be32 saddr; /* Address used for validation */
++ __be32 baddr; /* Address used for socket bind */
++};
++
++static inline
++int v4_map_sock_addr(struct inet_sock *inet, struct sockaddr_in *addr,
++ struct nx_v4_sock_addr *nsa)
++{
++ struct sock *sk = &inet->sk;
++ struct nx_info *nxi = sk->sk_nx_info;
++ __be32 saddr = addr->sin_addr.s_addr;
++ __be32 baddr = saddr;
++
++ vxdprintk(VXD_CBIT(net, 3),
++ "inet_bind(%p)* %p,%p;%lx " NIPQUAD_FMT,
++ sk, sk->sk_nx_info, sk->sk_socket,
++ (sk->sk_socket ? sk->sk_socket->flags : 0),
++ NIPQUAD(saddr));
++
++ if (nxi) {
++ if (saddr == INADDR_ANY) {
++ if (nx_info_flags(nxi, NXF_SINGLE_IP, 0))
++ baddr = nxi->v4.ip[0].s_addr;
++ } else if (saddr == IPI_LOOPBACK) {
++ if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
++ baddr = nxi->v4_lback.s_addr;
++ } else { /* normal address bind */
++ if (!v4_addr_in_nx_info(nxi, saddr, NXA_MASK_BIND))
++ return -EADDRNOTAVAIL;
++ }
++ }
++
++ vxdprintk(VXD_CBIT(net, 3),
++ "inet_bind(%p) " NIPQUAD_FMT ", " NIPQUAD_FMT,
++ sk, NIPQUAD(saddr), NIPQUAD(baddr));
++
++ nsa->saddr = saddr;
++ nsa->baddr = baddr;
++ return 0;
++}
++
++static inline
++void v4_set_sock_addr(struct inet_sock *inet, struct nx_v4_sock_addr *nsa)
++{
++ inet->saddr = nsa->baddr;
++ inet->rcv_saddr = nsa->baddr;
++}
++
++
++/*
++ * helper to simplify inet_lookup_listener
++ *
++ * nxi: the socket's nx_info if any
++ * addr: to be verified address
++ * saddr: socket address
++ */
++static inline int v4_inet_addr_match (
++ struct nx_info *nxi,
++ __be32 addr,
++ __be32 saddr)
++{
++ if (addr && (saddr == addr))
++ return 1;
++ if (!saddr)
++ return nxi ? v4_addr_in_nx_info(nxi, addr, NXA_MASK_BIND) : 1;
++ return 0;
++}
++
++static inline __be32 nx_map_sock_lback(struct nx_info *nxi, __be32 addr)
++{
++ if (nx_info_flags(nxi, NXF_HIDE_LBACK, 0) &&
++ (addr == nxi->v4_lback.s_addr))
++ return IPI_LOOPBACK;
++ return addr;
++}
++
++static inline
++int nx_info_has_v4(struct nx_info *nxi)
++{
++ if (!nxi)
++ return 1;
++ if (NX_IPV4(nxi))
++ return 1;
++ if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
++ return 1;
++ return 0;
++}
++
++#else /* CONFIG_INET */
++
++static inline
++int nx_dev_visible(struct nx_info *n, struct net_device *d)
++{
++ return 1;
++}
++
++static inline
++int nx_v4_addr_conflict(struct nx_info *n, uint32_t a, const struct sock *s)
++{
++ return 1;
++}
++
++static inline
++int v4_ifa_in_nx_info(struct in_ifaddr *a, struct nx_info *n)
++{
++ return 1;
++}
++
++static inline
++int nx_info_has_v4(struct nx_info *nxi)
++{
++ return 0;
++}
++
++#endif /* CONFIG_INET */
++
++#define current_nx_info_has_v4() \
++ nx_info_has_v4(current_nx_info())
++
++#else
++// #warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_limit.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_limit.h
+--- linux-2.6.32.1/include/linux/vs_limit.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_limit.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,140 @@
++#ifndef _VS_LIMIT_H
++#define _VS_LIMIT_H
++
++#include "vserver/limit.h"
++#include "vserver/base.h"
++#include "vserver/context.h"
++#include "vserver/debug.h"
++#include "vserver/context.h"
++#include "vserver/limit_int.h"
++
++
++#define vx_acc_cres(v, d, p, r) \
++ __vx_acc_cres(v, r, d, p, __FILE__, __LINE__)
++
++#define vx_acc_cres_cond(x, d, p, r) \
++ __vx_acc_cres(((x) == vx_current_xid()) ? current_vx_info() : 0, \
++ r, d, p, __FILE__, __LINE__)
++
++
++#define vx_add_cres(v, a, p, r) \
++ __vx_add_cres(v, r, a, p, __FILE__, __LINE__)
++#define vx_sub_cres(v, a, p, r) vx_add_cres(v, -(a), p, r)
++
++#define vx_add_cres_cond(x, a, p, r) \
++ __vx_add_cres(((x) == vx_current_xid()) ? current_vx_info() : 0, \
++ r, a, p, __FILE__, __LINE__)
++#define vx_sub_cres_cond(x, a, p, r) vx_add_cres_cond(x, -(a), p, r)
++
++
++/* process and file limits */
++
++#define vx_nproc_inc(p) \
++ vx_acc_cres((p)->vx_info, 1, p, RLIMIT_NPROC)
++
++#define vx_nproc_dec(p) \
++ vx_acc_cres((p)->vx_info,-1, p, RLIMIT_NPROC)
++
++#define vx_files_inc(f) \
++ vx_acc_cres_cond((f)->f_xid, 1, f, RLIMIT_NOFILE)
++
++#define vx_files_dec(f) \
++ vx_acc_cres_cond((f)->f_xid,-1, f, RLIMIT_NOFILE)
++
++#define vx_locks_inc(l) \
++ vx_acc_cres_cond((l)->fl_xid, 1, l, RLIMIT_LOCKS)
++
++#define vx_locks_dec(l) \
++ vx_acc_cres_cond((l)->fl_xid,-1, l, RLIMIT_LOCKS)
++
++#define vx_openfd_inc(f) \
++ vx_acc_cres(current_vx_info(), 1, (void *)(long)(f), VLIMIT_OPENFD)
++
++#define vx_openfd_dec(f) \
++ vx_acc_cres(current_vx_info(),-1, (void *)(long)(f), VLIMIT_OPENFD)
++
++
++#define vx_cres_avail(v, n, r) \
++ __vx_cres_avail(v, r, n, __FILE__, __LINE__)
++
++
++#define vx_nproc_avail(n) \
++ vx_cres_avail(current_vx_info(), n, RLIMIT_NPROC)
++
++#define vx_files_avail(n) \
++ vx_cres_avail(current_vx_info(), n, RLIMIT_NOFILE)
++
++#define vx_locks_avail(n) \
++ vx_cres_avail(current_vx_info(), n, RLIMIT_LOCKS)
++
++#define vx_openfd_avail(n) \
++ vx_cres_avail(current_vx_info(), n, VLIMIT_OPENFD)
++
++
++/* dentry limits */
++
++#define vx_dentry_inc(d) do { \
++ if (atomic_read(&d->d_count) == 1) \
++ vx_acc_cres(current_vx_info(), 1, d, VLIMIT_DENTRY); \
++ } while (0)
++
++#define vx_dentry_dec(d) do { \
++ if (atomic_read(&d->d_count) == 0) \
++ vx_acc_cres(current_vx_info(),-1, d, VLIMIT_DENTRY); \
++ } while (0)
++
++#define vx_dentry_avail(n) \
++ vx_cres_avail(current_vx_info(), n, VLIMIT_DENTRY)
++
++
++/* socket limits */
++
++#define vx_sock_inc(s) \
++ vx_acc_cres((s)->sk_vx_info, 1, s, VLIMIT_NSOCK)
++
++#define vx_sock_dec(s) \
++ vx_acc_cres((s)->sk_vx_info,-1, s, VLIMIT_NSOCK)
++
++#define vx_sock_avail(n) \
++ vx_cres_avail(current_vx_info(), n, VLIMIT_NSOCK)
++
++
++/* ipc resource limits */
++
++#define vx_ipcmsg_add(v, u, a) \
++ vx_add_cres(v, a, u, RLIMIT_MSGQUEUE)
++
++#define vx_ipcmsg_sub(v, u, a) \
++ vx_sub_cres(v, a, u, RLIMIT_MSGQUEUE)
++
++#define vx_ipcmsg_avail(v, a) \
++ vx_cres_avail(v, a, RLIMIT_MSGQUEUE)
++
++
++#define vx_ipcshm_add(v, k, a) \
++ vx_add_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM)
++
++#define vx_ipcshm_sub(v, k, a) \
++ vx_sub_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM)
++
++#define vx_ipcshm_avail(v, a) \
++ vx_cres_avail(v, a, VLIMIT_SHMEM)
++
++
++#define vx_semary_inc(a) \
++ vx_acc_cres(current_vx_info(), 1, a, VLIMIT_SEMARY)
++
++#define vx_semary_dec(a) \
++ vx_acc_cres(current_vx_info(), -1, a, VLIMIT_SEMARY)
++
++
++#define vx_nsems_add(a,n) \
++ vx_add_cres(current_vx_info(), n, a, VLIMIT_NSEMS)
++
++#define vx_nsems_sub(a,n) \
++ vx_sub_cres(current_vx_info(), n, a, VLIMIT_NSEMS)
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_memory.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_memory.h
+--- linux-2.6.32.1/include/linux/vs_memory.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_memory.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,159 @@
++#ifndef _VS_MEMORY_H
++#define _VS_MEMORY_H
++
++#include "vserver/limit.h"
++#include "vserver/base.h"
++#include "vserver/context.h"
++#include "vserver/debug.h"
++#include "vserver/context.h"
++#include "vserver/limit_int.h"
++
++
++#define __acc_add_long(a, v) (*(v) += (a))
++#define __acc_inc_long(v) (++*(v))
++#define __acc_dec_long(v) (--*(v))
++
++#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS
++#define __acc_add_atomic(a, v) atomic_long_add(a, v)
++#define __acc_inc_atomic(v) atomic_long_inc(v)
++#define __acc_dec_atomic(v) atomic_long_dec(v)
++#else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
++#define __acc_add_atomic(a, v) __acc_add_long(a, v)
++#define __acc_inc_atomic(v) __acc_inc_long(v)
++#define __acc_dec_atomic(v) __acc_dec_long(v)
++#endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
++
++
++#define vx_acc_page(m, d, v, r) do { \
++ if ((d) > 0) \
++ __acc_inc_long(&(m)->v); \
++ else \
++ __acc_dec_long(&(m)->v); \
++ __vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__); \
++} while (0)
++
++#define vx_acc_page_atomic(m, d, v, r) do { \
++ if ((d) > 0) \
++ __acc_inc_atomic(&(m)->v); \
++ else \
++ __acc_dec_atomic(&(m)->v); \
++ __vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__); \
++} while (0)
++
++
++#define vx_acc_pages(m, p, v, r) do { \
++ unsigned long __p = (p); \
++ __acc_add_long(__p, &(m)->v); \
++ __vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__); \
++} while (0)
++
++#define vx_acc_pages_atomic(m, p, v, r) do { \
++ unsigned long __p = (p); \
++ __acc_add_atomic(__p, &(m)->v); \
++ __vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__); \
++} while (0)
++
++
++
++#define vx_acc_vmpage(m, d) \
++ vx_acc_page(m, d, total_vm, RLIMIT_AS)
++#define vx_acc_vmlpage(m, d) \
++ vx_acc_page(m, d, locked_vm, RLIMIT_MEMLOCK)
++#define vx_acc_file_rsspage(m, d) \
++ vx_acc_page_atomic(m, d, _file_rss, VLIMIT_MAPPED)
++#define vx_acc_anon_rsspage(m, d) \
++ vx_acc_page_atomic(m, d, _anon_rss, VLIMIT_ANON)
++
++#define vx_acc_vmpages(m, p) \
++ vx_acc_pages(m, p, total_vm, RLIMIT_AS)
++#define vx_acc_vmlpages(m, p) \
++ vx_acc_pages(m, p, locked_vm, RLIMIT_MEMLOCK)
++#define vx_acc_file_rsspages(m, p) \
++ vx_acc_pages_atomic(m, p, _file_rss, VLIMIT_MAPPED)
++#define vx_acc_anon_rsspages(m, p) \
++ vx_acc_pages_atomic(m, p, _anon_rss, VLIMIT_ANON)
++
++#define vx_pages_add(s, r, p) __vx_add_cres(s, r, p, 0, __FILE__, __LINE__)
++#define vx_pages_sub(s, r, p) vx_pages_add(s, r, -(p))
++
++#define vx_vmpages_inc(m) vx_acc_vmpage(m, 1)
++#define vx_vmpages_dec(m) vx_acc_vmpage(m, -1)
++#define vx_vmpages_add(m, p) vx_acc_vmpages(m, p)
++#define vx_vmpages_sub(m, p) vx_acc_vmpages(m, -(p))
++
++#define vx_vmlocked_inc(m) vx_acc_vmlpage(m, 1)
++#define vx_vmlocked_dec(m) vx_acc_vmlpage(m, -1)
++#define vx_vmlocked_add(m, p) vx_acc_vmlpages(m, p)
++#define vx_vmlocked_sub(m, p) vx_acc_vmlpages(m, -(p))
++
++#define vx_file_rsspages_inc(m) vx_acc_file_rsspage(m, 1)
++#define vx_file_rsspages_dec(m) vx_acc_file_rsspage(m, -1)
++#define vx_file_rsspages_add(m, p) vx_acc_file_rsspages(m, p)
++#define vx_file_rsspages_sub(m, p) vx_acc_file_rsspages(m, -(p))
++
++#define vx_anon_rsspages_inc(m) vx_acc_anon_rsspage(m, 1)
++#define vx_anon_rsspages_dec(m) vx_acc_anon_rsspage(m, -1)
++#define vx_anon_rsspages_add(m, p) vx_acc_anon_rsspages(m, p)
++#define vx_anon_rsspages_sub(m, p) vx_acc_anon_rsspages(m, -(p))
++
++
++#define vx_pages_avail(m, p, r) \
++ __vx_cres_avail((m)->mm_vx_info, r, p, __FILE__, __LINE__)
++
++#define vx_vmpages_avail(m, p) vx_pages_avail(m, p, RLIMIT_AS)
++#define vx_vmlocked_avail(m, p) vx_pages_avail(m, p, RLIMIT_MEMLOCK)
++#define vx_anon_avail(m, p) vx_pages_avail(m, p, VLIMIT_ANON)
++#define vx_mapped_avail(m, p) vx_pages_avail(m, p, VLIMIT_MAPPED)
++
++#define vx_rss_avail(m, p) \
++ __vx_cres_array_avail((m)->mm_vx_info, VLA_RSS, p, __FILE__, __LINE__)
++
++
++enum {
++ VXPT_UNKNOWN = 0,
++ VXPT_ANON,
++ VXPT_NONE,
++ VXPT_FILE,
++ VXPT_SWAP,
++ VXPT_WRITE
++};
++
++#if 0
++#define vx_page_fault(mm, vma, type, ret)
++#else
++
++static inline
++void __vx_page_fault(struct mm_struct *mm,
++ struct vm_area_struct *vma, int type, int ret)
++{
++ struct vx_info *vxi = mm->mm_vx_info;
++ int what;
++/*
++ static char *page_type[6] =
++ { "UNKNOWN", "ANON", "NONE", "FILE", "SWAP", "WRITE" };
++ static char *page_what[4] =
++ { "FAULT_OOM", "FAULT_SIGBUS", "FAULT_MINOR", "FAULT_MAJOR" };
++*/
++
++ if (!vxi)
++ return;
++
++ what = (ret & 0x3);
++
++/* printk("[%d] page[%d][%d] %2x %s %s\n", vxi->vx_id,
++ type, what, ret, page_type[type], page_what[what]);
++*/
++ if (ret & VM_FAULT_WRITE)
++ what |= 0x4;
++ atomic_inc(&vxi->cacct.page[type][what]);
++}
++
++#define vx_page_fault(mm, vma, type, ret) __vx_page_fault(mm, vma, type, ret)
++#endif
++
++
++extern unsigned long vx_badness(struct task_struct *task, struct mm_struct *mm);
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_network.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_network.h
+--- linux-2.6.32.1/include/linux/vs_network.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_network.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,169 @@
++#ifndef _NX_VS_NETWORK_H
++#define _NX_VS_NETWORK_H
++
++#include "vserver/context.h"
++#include "vserver/network.h"
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/debug.h"
++
++#include <linux/sched.h>
++
++
++#define get_nx_info(i) __get_nx_info(i, __FILE__, __LINE__)
++
++static inline struct nx_info *__get_nx_info(struct nx_info *nxi,
++ const char *_file, int _line)
++{
++ if (!nxi)
++ return NULL;
++
++ vxlprintk(VXD_CBIT(nid, 2), "get_nx_info(%p[#%d.%d])",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ _file, _line);
++
++ atomic_inc(&nxi->nx_usecnt);
++ return nxi;
++}
++
++
++extern void free_nx_info(struct nx_info *);
++
++#define put_nx_info(i) __put_nx_info(i, __FILE__, __LINE__)
++
++static inline void __put_nx_info(struct nx_info *nxi, const char *_file, int _line)
++{
++ if (!nxi)
++ return;
++
++ vxlprintk(VXD_CBIT(nid, 2), "put_nx_info(%p[#%d.%d])",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ _file, _line);
++
++ if (atomic_dec_and_test(&nxi->nx_usecnt))
++ free_nx_info(nxi);
++}
++
++
++#define init_nx_info(p, i) __init_nx_info(p, i, __FILE__, __LINE__)
++
++static inline void __init_nx_info(struct nx_info **nxp, struct nx_info *nxi,
++ const char *_file, int _line)
++{
++ if (nxi) {
++ vxlprintk(VXD_CBIT(nid, 3),
++ "init_nx_info(%p[#%d.%d])",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ _file, _line);
++
++ atomic_inc(&nxi->nx_usecnt);
++ }
++ *nxp = nxi;
++}
++
++
++#define set_nx_info(p, i) __set_nx_info(p, i, __FILE__, __LINE__)
++
++static inline void __set_nx_info(struct nx_info **nxp, struct nx_info *nxi,
++ const char *_file, int _line)
++{
++ struct nx_info *nxo;
++
++ if (!nxi)
++ return;
++
++ vxlprintk(VXD_CBIT(nid, 3), "set_nx_info(%p[#%d.%d])",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ _file, _line);
++
++ atomic_inc(&nxi->nx_usecnt);
++ nxo = xchg(nxp, nxi);
++ BUG_ON(nxo);
++}
++
++#define clr_nx_info(p) __clr_nx_info(p, __FILE__, __LINE__)
++
++static inline void __clr_nx_info(struct nx_info **nxp,
++ const char *_file, int _line)
++{
++ struct nx_info *nxo;
++
++ nxo = xchg(nxp, NULL);
++ if (!nxo)
++ return;
++
++ vxlprintk(VXD_CBIT(nid, 3), "clr_nx_info(%p[#%d.%d])",
++ nxo, nxo ? nxo->nx_id : 0,
++ nxo ? atomic_read(&nxo->nx_usecnt) : 0,
++ _file, _line);
++
++ if (atomic_dec_and_test(&nxo->nx_usecnt))
++ free_nx_info(nxo);
++}
++
++
++#define claim_nx_info(v, p) __claim_nx_info(v, p, __FILE__, __LINE__)
++
++static inline void __claim_nx_info(struct nx_info *nxi,
++ struct task_struct *task, const char *_file, int _line)
++{
++ vxlprintk(VXD_CBIT(nid, 3), "claim_nx_info(%p[#%d.%d.%d]) %p",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi?atomic_read(&nxi->nx_usecnt):0,
++ nxi?atomic_read(&nxi->nx_tasks):0,
++ task, _file, _line);
++
++ atomic_inc(&nxi->nx_tasks);
++}
++
++
++extern void unhash_nx_info(struct nx_info *);
++
++#define release_nx_info(v, p) __release_nx_info(v, p, __FILE__, __LINE__)
++
++static inline void __release_nx_info(struct nx_info *nxi,
++ struct task_struct *task, const char *_file, int _line)
++{
++ vxlprintk(VXD_CBIT(nid, 3), "release_nx_info(%p[#%d.%d.%d]) %p",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ nxi ? atomic_read(&nxi->nx_tasks) : 0,
++ task, _file, _line);
++
++ might_sleep();
++
++ if (atomic_dec_and_test(&nxi->nx_tasks))
++ unhash_nx_info(nxi);
++}
++
++
++#define task_get_nx_info(i) __task_get_nx_info(i, __FILE__, __LINE__)
++
++static __inline__ struct nx_info *__task_get_nx_info(struct task_struct *p,
++ const char *_file, int _line)
++{
++ struct nx_info *nxi;
++
++ task_lock(p);
++ vxlprintk(VXD_CBIT(nid, 5), "task_get_nx_info(%p)",
++ p, _file, _line);
++ nxi = __get_nx_info(p->nx_info, _file, _line);
++ task_unlock(p);
++ return nxi;
++}
++
++
++static inline void exit_nx_info(struct task_struct *p)
++{
++ if (p->nx_info)
++ release_nx_info(p->nx_info, p);
++}
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_pid.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_pid.h
+--- linux-2.6.32.1/include/linux/vs_pid.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_pid.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,95 @@
++#ifndef _VS_PID_H
++#define _VS_PID_H
++
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/context.h"
++#include "vserver/debug.h"
++#include "vserver/pid.h"
++#include <linux/pid_namespace.h>
++
++
++#define VXF_FAKE_INIT (VXF_INFO_INIT | VXF_STATE_INIT)
++
++static inline
++int vx_proc_task_visible(struct task_struct *task)
++{
++ if ((task->pid == 1) &&
++ !vx_flags(VXF_FAKE_INIT, VXF_FAKE_INIT))
++ /* show a blend through init */
++ goto visible;
++ if (vx_check(vx_task_xid(task), VS_WATCH | VS_IDENT))
++ goto visible;
++ return 0;
++visible:
++ return 1;
++}
++
++#define find_task_by_real_pid(pid) find_task_by_pid_ns(pid, &init_pid_ns)
++
++#if 0
++
++static inline
++struct task_struct *vx_find_proc_task_by_pid(int pid)
++{
++ struct task_struct *task = find_task_by_real_pid(pid);
++
++ if (task && !vx_proc_task_visible(task)) {
++ vxdprintk(VXD_CBIT(misc, 6),
++ "dropping task (find) %p[#%u,%u] for %p[#%u,%u]",
++ task, task->xid, task->pid,
++ current, current->xid, current->pid);
++ task = NULL;
++ }
++ return task;
++}
++
++#endif
++
++static inline
++struct task_struct *vx_get_proc_task(struct inode *inode, struct pid *pid)
++{
++ struct task_struct *task = get_pid_task(pid, PIDTYPE_PID);
++
++ if (task && !vx_proc_task_visible(task)) {
++ vxdprintk(VXD_CBIT(misc, 6),
++ "dropping task (get) %p[#%u,%u] for %p[#%u,%u]",
++ task, task->xid, task->pid,
++ current, current->xid, current->pid);
++ put_task_struct(task);
++ task = NULL;
++ }
++ return task;
++}
++
++#if 0
++
++static inline
++struct task_struct *vx_child_reaper(struct task_struct *p)
++{
++ struct vx_info *vxi = p->vx_info;
++ struct task_struct *reaper = child_reaper(p);
++
++ if (!vxi)
++ goto out;
++
++ BUG_ON(!p->vx_info->vx_reaper);
++
++ /* child reaper for the guest reaper */
++ if (vxi->vx_reaper == p)
++ goto out;
++
++ reaper = vxi->vx_reaper;
++out:
++ vxdprintk(VXD_CBIT(xid, 7),
++ "vx_child_reaper(%p[#%u,%u]) = %p[#%u,%u]",
++ p, p->xid, p->pid, reaper, reaper->xid, reaper->pid);
++ return reaper;
++}
++
++#endif
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_sched.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_sched.h
+--- linux-2.6.32.1/include/linux/vs_sched.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_sched.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,110 @@
++#ifndef _VS_SCHED_H
++#define _VS_SCHED_H
++
++#include "vserver/base.h"
++#include "vserver/context.h"
++#include "vserver/sched.h"
++
++
++#define VAVAVOOM_RATIO 50
++
++#define MAX_PRIO_BIAS 20
++#define MIN_PRIO_BIAS -20
++
++
++#ifdef CONFIG_VSERVER_HARDCPU
++
++/*
++ * effective_prio - return the priority that is based on the static
++ * priority but is modified by bonuses/penalties.
++ *
++ * We scale the actual sleep average [0 .... MAX_SLEEP_AVG]
++ * into a -4 ... 0 ... +4 bonus/penalty range.
++ *
++ * Additionally, we scale another amount based on the number of
++ * CPU tokens currently held by the context, if the process is
++ * part of a context (and the appropriate SCHED flag is set).
++ * This ranges from -5 ... 0 ... +15, quadratically.
++ *
++ * So, the total bonus is -9 .. 0 .. +19
++ * We use ~50% of the full 0...39 priority range so that:
++ *
++ * 1) nice +19 interactive tasks do not preempt nice 0 CPU hogs.
++ * 2) nice -20 CPU hogs do not get preempted by nice 0 tasks.
++ * unless that context is far exceeding its CPU allocation.
++ *
++ * Both properties are important to certain workloads.
++ */
++static inline
++int vx_effective_vavavoom(struct _vx_sched_pc *sched_pc, int max_prio)
++{
++ int vavavoom, max;
++
++ /* lots of tokens = lots of vavavoom
++ * no tokens = no vavavoom */
++ if ((vavavoom = sched_pc->tokens) >= 0) {
++ max = sched_pc->tokens_max;
++ vavavoom = max - vavavoom;
++ max = max * max;
++ vavavoom = max_prio * VAVAVOOM_RATIO / 100
++ * (vavavoom*vavavoom - (max >> 2)) / max;
++ return vavavoom;
++ }
++ return 0;
++}
++
++
++static inline
++int vx_adjust_prio(struct task_struct *p, int prio, int max_user)
++{
++ struct vx_info *vxi = p->vx_info;
++ struct _vx_sched_pc *sched_pc;
++
++ if (!vxi)
++ return prio;
++
++ sched_pc = &vx_cpu(vxi, sched_pc);
++ if (vx_info_flags(vxi, VXF_SCHED_PRIO, 0)) {
++ int vavavoom = vx_effective_vavavoom(sched_pc, max_user);
++
++ sched_pc->vavavoom = vavavoom;
++ prio += vavavoom;
++ }
++ prio += sched_pc->prio_bias;
++ return prio;
++}
++
++#else /* !CONFIG_VSERVER_HARDCPU */
++
++static inline
++int vx_adjust_prio(struct task_struct *p, int prio, int max_user)
++{
++ struct vx_info *vxi = p->vx_info;
++
++ if (vxi)
++ prio += vx_cpu(vxi, sched_pc).prio_bias;
++ return prio;
++}
++
++#endif /* CONFIG_VSERVER_HARDCPU */
++
++
++static inline void vx_account_user(struct vx_info *vxi,
++ cputime_t cputime, int nice)
++{
++ if (!vxi)
++ return;
++ vx_cpu(vxi, sched_pc).user_ticks += cputime;
++}
++
++static inline void vx_account_system(struct vx_info *vxi,
++ cputime_t cputime, int idle)
++{
++ if (!vxi)
++ return;
++ vx_cpu(vxi, sched_pc).sys_ticks += cputime;
++}
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_socket.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_socket.h
+--- linux-2.6.32.1/include/linux/vs_socket.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_socket.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,67 @@
++#ifndef _VS_SOCKET_H
++#define _VS_SOCKET_H
++
++#include "vserver/debug.h"
++#include "vserver/base.h"
++#include "vserver/cacct.h"
++#include "vserver/context.h"
++#include "vserver/tag.h"
++
++
++/* socket accounting */
++
++#include <linux/socket.h>
++
++static inline int vx_sock_type(int family)
++{
++ switch (family) {
++ case PF_UNSPEC:
++ return VXA_SOCK_UNSPEC;
++ case PF_UNIX:
++ return VXA_SOCK_UNIX;
++ case PF_INET:
++ return VXA_SOCK_INET;
++ case PF_INET6:
++ return VXA_SOCK_INET6;
++ case PF_PACKET:
++ return VXA_SOCK_PACKET;
++ default:
++ return VXA_SOCK_OTHER;
++ }
++}
++
++#define vx_acc_sock(v, f, p, s) \
++ __vx_acc_sock(v, f, p, s, __FILE__, __LINE__)
++
++static inline void __vx_acc_sock(struct vx_info *vxi,
++ int family, int pos, int size, char *file, int line)
++{
++ if (vxi) {
++ int type = vx_sock_type(family);
++
++ atomic_long_inc(&vxi->cacct.sock[type][pos].count);
++ atomic_long_add(size, &vxi->cacct.sock[type][pos].total);
++ }
++}
++
++#define vx_sock_recv(sk, s) \
++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 0, s)
++#define vx_sock_send(sk, s) \
++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 1, s)
++#define vx_sock_fail(sk, s) \
++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 2, s)
++
++
++#define sock_vx_init(s) do { \
++ (s)->sk_xid = 0; \
++ (s)->sk_vx_info = NULL; \
++ } while (0)
++
++#define sock_nx_init(s) do { \
++ (s)->sk_nid = 0; \
++ (s)->sk_nx_info = NULL; \
++ } while (0)
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_tag.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_tag.h
+--- linux-2.6.32.1/include/linux/vs_tag.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_tag.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,47 @@
++#ifndef _VS_TAG_H
++#define _VS_TAG_H
++
++#include <linux/vserver/tag.h>
++
++/* check conditions */
++
++#define DX_ADMIN 0x0001
++#define DX_WATCH 0x0002
++#define DX_HOSTID 0x0008
++
++#define DX_IDENT 0x0010
++
++#define DX_ARG_MASK 0x0010
++
++
++#define dx_task_tag(t) ((t)->tag)
++
++#define dx_current_tag() dx_task_tag(current)
++
++#define dx_check(c, m) __dx_check(dx_current_tag(), c, m)
++
++#define dx_weak_check(c, m) ((m) ? dx_check(c, m) : 1)
++
++
++/*
++ * check current context for ADMIN/WATCH and
++ * optionally against supplied argument
++ */
++static inline int __dx_check(tag_t cid, tag_t id, unsigned int mode)
++{
++ if (mode & DX_ARG_MASK) {
++ if ((mode & DX_IDENT) && (id == cid))
++ return 1;
++ }
++ return (((mode & DX_ADMIN) && (cid == 0)) ||
++ ((mode & DX_WATCH) && (cid == 1)) ||
++ ((mode & DX_HOSTID) && (id == 0)));
++}
++
++struct inode;
++int dx_permission(const struct inode *inode, int mask);
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/linux/vs_time.h linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_time.h
+--- linux-2.6.32.1/include/linux/vs_time.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/linux/vs_time.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,19 @@
++#ifndef _VS_TIME_H
++#define _VS_TIME_H
++
++
++/* time faking stuff */
++
++#ifdef CONFIG_VSERVER_VTIME
++
++extern void vx_gettimeofday(struct timeval *tv);
++extern int vx_settimeofday(struct timespec *ts);
++
++#else
++#define vx_gettimeofday(t) do_gettimeofday(t)
++#define vx_settimeofday(t) do_settimeofday(t)
++#endif
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-2.6.32.1/include/net/addrconf.h linux-2.6.32.1-vs2.3.0.36.27/include/net/addrconf.h
+--- linux-2.6.32.1/include/net/addrconf.h 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/net/addrconf.h 2009-12-03 20:04:56.000000000 +0100
+@@ -84,7 +84,8 @@ extern int ipv6_dev_get_saddr(struct n
+ struct net_device *dev,
+ const struct in6_addr *daddr,
+ unsigned int srcprefs,
+- struct in6_addr *saddr);
++ struct in6_addr *saddr,
++ struct nx_info *nxi);
+ extern int ipv6_get_lladdr(struct net_device *dev,
+ struct in6_addr *addr,
+ unsigned char banned_flags);
+diff -NurpP --minimal linux-2.6.32.1/include/net/af_unix.h linux-2.6.32.1-vs2.3.0.36.27/include/net/af_unix.h
+--- linux-2.6.32.1/include/net/af_unix.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/net/af_unix.h 2009-12-03 20:04:56.000000000 +0100
+@@ -4,6 +4,7 @@
+ #include <linux/socket.h>
+ #include <linux/un.h>
+ #include <linux/mutex.h>
++#include <linux/vs_base.h>
+ #include <net/sock.h>
+
+ extern void unix_inflight(struct file *fp);
+diff -NurpP --minimal linux-2.6.32.1/include/net/inet_timewait_sock.h linux-2.6.32.1-vs2.3.0.36.27/include/net/inet_timewait_sock.h
+--- linux-2.6.32.1/include/net/inet_timewait_sock.h 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/net/inet_timewait_sock.h 2009-12-03 20:04:56.000000000 +0100
+@@ -117,6 +117,10 @@ struct inet_timewait_sock {
+ #define tw_hash __tw_common.skc_hash
+ #define tw_prot __tw_common.skc_prot
+ #define tw_net __tw_common.skc_net
++#define tw_xid __tw_common.skc_xid
++#define tw_vx_info __tw_common.skc_vx_info
++#define tw_nid __tw_common.skc_nid
++#define tw_nx_info __tw_common.skc_nx_info
+ int tw_timeout;
+ volatile unsigned char tw_substate;
+ /* 3 bits hole, try to pack */
+diff -NurpP --minimal linux-2.6.32.1/include/net/route.h linux-2.6.32.1-vs2.3.0.36.27/include/net/route.h
+--- linux-2.6.32.1/include/net/route.h 2009-09-10 15:26:27.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/include/net/route.h 2009-12-03 20:04:56.000000000 +0100
+@@ -135,6 +135,9 @@ static inline void ip_rt_put(struct rtab
+ dst_release(&rt->u.dst);
+ }
+
++#include <linux/vs_base.h>
++#include <linux/vs_inet.h>
++
+ #define IPTOS_RT_MASK (IPTOS_TOS_MASK & ~3)
+
+ extern const __u8 ip_tos2prio[16];
+@@ -144,6 +147,9 @@ static inline char rt_tos2priority(u8 to
+ return ip_tos2prio[IPTOS_TOS(tos)>>1];
+ }
+
++extern int ip_v4_find_src(struct net *net, struct nx_info *,
++ struct rtable **, struct flowi *);
++
+ static inline int ip_route_connect(struct rtable **rp, __be32 dst,
+ __be32 src, u32 tos, int oif, u8 protocol,
+ __be16 sport, __be16 dport, struct sock *sk,
+@@ -161,11 +167,24 @@ static inline int ip_route_connect(struc
+
+ int err;
+ struct net *net = sock_net(sk);
++ struct nx_info *nx_info = current_nx_info();
+
+ if (inet_sk(sk)->transparent)
+ fl.flags |= FLOWI_FLAG_ANYSRC;
+
+- if (!dst || !src) {
++ if (sk)
++ nx_info = sk->sk_nx_info;
++
++ vxdprintk(VXD_CBIT(net, 4),
++ "ip_route_connect(%p) %p,%p;%lx",
++ sk, nx_info, sk->sk_socket,
++ (sk->sk_socket?sk->sk_socket->flags:0));
++
++ err = ip_v4_find_src(net, nx_info, rp, &fl);
++ if (err)
++ return err;
++
++ if (!fl.fl4_dst || !fl.fl4_src) {
+ err = __ip_route_output_key(net, rp, &fl);
+ if (err)
+ return err;
+diff -NurpP --minimal linux-2.6.32.1/include/net/sock.h linux-2.6.32.1-vs2.3.0.36.27/include/net/sock.h
+--- linux-2.6.32.1/include/net/sock.h 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/include/net/sock.h 2009-12-03 20:04:56.000000000 +0100
+@@ -139,6 +139,10 @@ struct sock_common {
+ #ifdef CONFIG_NET_NS
+ struct net *skc_net;
+ #endif
++ xid_t skc_xid;
++ struct vx_info *skc_vx_info;
++ nid_t skc_nid;
++ struct nx_info *skc_nx_info;
+ };
+
+ /**
+@@ -225,6 +229,10 @@ struct sock {
+ #define sk_bind_node __sk_common.skc_bind_node
+ #define sk_prot __sk_common.skc_prot
+ #define sk_net __sk_common.skc_net
++#define sk_xid __sk_common.skc_xid
++#define sk_vx_info __sk_common.skc_vx_info
++#define sk_nid __sk_common.skc_nid
++#define sk_nx_info __sk_common.skc_nx_info
+ kmemcheck_bitfield_begin(flags);
+ unsigned int sk_shutdown : 2,
+ sk_no_check : 2,
+diff -NurpP --minimal linux-2.6.32.1/init/Kconfig linux-2.6.32.1-vs2.3.0.36.27/init/Kconfig
+--- linux-2.6.32.1/init/Kconfig 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/init/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -477,6 +477,19 @@ config CGROUP_SCHED
+
+ endchoice
+
++config CFS_HARD_LIMITS
++ bool "Hard Limits for CFS Group Scheduler"
++ depends on EXPERIMENTAL
++ depends on FAIR_GROUP_SCHED && CGROUP_SCHED
++ default n
++ help
++ This option enables hard limiting of CPU time obtained by
++ a fair task group. Use this if you want to throttle a group of tasks
++ based on its CPU usage. For more details refer to
++ Documentation/scheduler/sched-cfs-hard-limits.txt
++
++ Say N if unsure.
++
+ menuconfig CGROUPS
+ boolean "Control Group support"
+ help
+diff -NurpP --minimal linux-2.6.32.1/init/main.c linux-2.6.32.1-vs2.3.0.36.27/init/main.c
+--- linux-2.6.32.1/init/main.c 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/init/main.c 2009-12-03 20:04:56.000000000 +0100
+@@ -70,6 +70,7 @@
+ #include <linux/sfi.h>
+ #include <linux/shmem_fs.h>
+ #include <trace/boot.h>
++#include <linux/vserver/percpu.h>
+
+ #include <asm/io.h>
+ #include <asm/bugs.h>
+diff -NurpP --minimal linux-2.6.32.1/ipc/mqueue.c linux-2.6.32.1-vs2.3.0.36.27/ipc/mqueue.c
+--- linux-2.6.32.1/ipc/mqueue.c 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/ipc/mqueue.c 2009-12-03 20:04:56.000000000 +0100
+@@ -33,6 +33,8 @@
+ #include <linux/pid.h>
+ #include <linux/ipc_namespace.h>
+ #include <linux/ima.h>
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
+
+ #include <net/sock.h>
+ #include "util.h"
+@@ -66,6 +68,7 @@ struct mqueue_inode_info {
+ struct sigevent notify;
+ struct pid* notify_owner;
+ struct user_struct *user; /* user who created, for accounting */
++ struct vx_info *vxi;
+ struct sock *notify_sock;
+ struct sk_buff *notify_cookie;
+
+@@ -125,6 +128,7 @@ static struct inode *mqueue_get_inode(st
+ if (S_ISREG(mode)) {
+ struct mqueue_inode_info *info;
+ struct task_struct *p = current;
++ struct vx_info *vxi = p->vx_info;
+ unsigned long mq_bytes, mq_msg_tblsz;
+
+ inode->i_fop = &mqueue_file_operations;
+@@ -139,6 +143,7 @@ static struct inode *mqueue_get_inode(st
+ info->notify_owner = NULL;
+ info->qsize = 0;
+ info->user = NULL; /* set when all is ok */
++ info->vxi = NULL;
+ memset(&info->attr, 0, sizeof(info->attr));
+ info->attr.mq_maxmsg = ipc_ns->mq_msg_max;
+ info->attr.mq_msgsize = ipc_ns->mq_msgsize_max;
+@@ -153,22 +158,26 @@ static struct inode *mqueue_get_inode(st
+ spin_lock(&mq_lock);
+ if (u->mq_bytes + mq_bytes < u->mq_bytes ||
+ u->mq_bytes + mq_bytes >
+- p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur) {
++ p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur ||
++ !vx_ipcmsg_avail(vxi, mq_bytes)) {
+ spin_unlock(&mq_lock);
+ goto out_inode;
+ }
+ u->mq_bytes += mq_bytes;
++ vx_ipcmsg_add(vxi, u, mq_bytes);
+ spin_unlock(&mq_lock);
+
+ info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL);
+ if (!info->messages) {
+ spin_lock(&mq_lock);
+ u->mq_bytes -= mq_bytes;
++ vx_ipcmsg_sub(vxi, u, mq_bytes);
+ spin_unlock(&mq_lock);
+ goto out_inode;
+ }
+ /* all is ok */
+ info->user = get_uid(u);
++ info->vxi = get_vx_info(vxi);
+ } else if (S_ISDIR(mode)) {
+ inc_nlink(inode);
+ /* Some things misbehave if size == 0 on a directory */
+@@ -269,8 +278,11 @@ static void mqueue_delete_inode(struct i
+ (info->attr.mq_maxmsg * info->attr.mq_msgsize));
+ user = info->user;
+ if (user) {
++ struct vx_info *vxi = info->vxi;
++
+ spin_lock(&mq_lock);
+ user->mq_bytes -= mq_bytes;
++ vx_ipcmsg_sub(vxi, user, mq_bytes);
+ /*
+ * get_ns_from_inode() ensures that the
+ * (ipc_ns = sb->s_fs_info) is either a valid ipc_ns
+@@ -280,6 +292,7 @@ static void mqueue_delete_inode(struct i
+ if (ipc_ns)
+ ipc_ns->mq_queues_count--;
+ spin_unlock(&mq_lock);
++ put_vx_info(vxi);
+ free_uid(user);
+ }
+ if (ipc_ns)
+diff -NurpP --minimal linux-2.6.32.1/ipc/msg.c linux-2.6.32.1-vs2.3.0.36.27/ipc/msg.c
+--- linux-2.6.32.1/ipc/msg.c 2009-03-24 14:22:44.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/ipc/msg.c 2009-12-03 20:04:56.000000000 +0100
+@@ -38,6 +38,7 @@
+ #include <linux/rwsem.h>
+ #include <linux/nsproxy.h>
+ #include <linux/ipc_namespace.h>
++#include <linux/vs_base.h>
+
+ #include <asm/current.h>
+ #include <asm/uaccess.h>
+@@ -190,6 +191,7 @@ static int newque(struct ipc_namespace *
+
+ msq->q_perm.mode = msgflg & S_IRWXUGO;
+ msq->q_perm.key = key;
++ msq->q_perm.xid = vx_current_xid();
+
+ msq->q_perm.security = NULL;
+ retval = security_msg_queue_alloc(msq);
+diff -NurpP --minimal linux-2.6.32.1/ipc/namespace.c linux-2.6.32.1-vs2.3.0.36.27/ipc/namespace.c
+--- linux-2.6.32.1/ipc/namespace.c 2009-09-10 15:26:27.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/ipc/namespace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -11,6 +11,8 @@
+ #include <linux/slab.h>
+ #include <linux/fs.h>
+ #include <linux/mount.h>
++#include <linux/vs_base.h>
++#include <linux/vserver/global.h>
+
+ #include "util.h"
+
+diff -NurpP --minimal linux-2.6.32.1/ipc/sem.c linux-2.6.32.1-vs2.3.0.36.27/ipc/sem.c
+--- linux-2.6.32.1/ipc/sem.c 2009-09-10 15:26:27.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/ipc/sem.c 2009-12-03 20:04:56.000000000 +0100
+@@ -83,6 +83,8 @@
+ #include <linux/rwsem.h>
+ #include <linux/nsproxy.h>
+ #include <linux/ipc_namespace.h>
++#include <linux/vs_base.h>
++#include <linux/vs_limit.h>
+
+ #include <asm/uaccess.h>
+ #include "util.h"
+@@ -255,6 +257,7 @@ static int newary(struct ipc_namespace *
+
+ sma->sem_perm.mode = (semflg & S_IRWXUGO);
+ sma->sem_perm.key = key;
++ sma->sem_perm.xid = vx_current_xid();
+
+ sma->sem_perm.security = NULL;
+ retval = security_sem_alloc(sma);
+@@ -270,6 +273,9 @@ static int newary(struct ipc_namespace *
+ return id;
+ }
+ ns->used_sems += nsems;
++ /* FIXME: obsoleted? */
++ vx_semary_inc(sma);
++ vx_nsems_add(sma, nsems);
+
+ sma->sem_base = (struct sem *) &sma[1];
+ INIT_LIST_HEAD(&sma->sem_pending);
+@@ -546,6 +552,9 @@ static void freeary(struct ipc_namespace
+ sem_unlock(sma);
+
+ ns->used_sems -= sma->sem_nsems;
++ /* FIXME: obsoleted? */
++ vx_nsems_sub(sma, sma->sem_nsems);
++ vx_semary_dec(sma);
+ security_sem_free(sma);
+ ipc_rcu_putref(sma);
+ }
+diff -NurpP --minimal linux-2.6.32.1/ipc/shm.c linux-2.6.32.1-vs2.3.0.36.27/ipc/shm.c
+--- linux-2.6.32.1/ipc/shm.c 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/ipc/shm.c 2009-12-03 20:04:56.000000000 +0100
+@@ -40,6 +40,8 @@
+ #include <linux/mount.h>
+ #include <linux/ipc_namespace.h>
+ #include <linux/ima.h>
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
+
+ #include <asm/uaccess.h>
+
+@@ -169,7 +171,12 @@ static void shm_open(struct vm_area_stru
+ */
+ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
+ {
+- ns->shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
++ struct vx_info *vxi = lookup_vx_info(shp->shm_perm.xid);
++ int numpages = (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
++
++ vx_ipcshm_sub(vxi, shp, numpages);
++ ns->shm_tot -= numpages;
++
+ shm_rmid(ns, shp);
+ shm_unlock(shp);
+ if (!is_file_hugepages(shp->shm_file))
+@@ -179,6 +186,7 @@ static void shm_destroy(struct ipc_names
+ shp->mlock_user);
+ fput (shp->shm_file);
+ security_shm_free(shp);
++ put_vx_info(vxi);
+ ipc_rcu_putref(shp);
+ }
+
+@@ -349,11 +357,15 @@ static int newseg(struct ipc_namespace *
+ if (ns->shm_tot + numpages > ns->shm_ctlall)
+ return -ENOSPC;
+
++ if (!vx_ipcshm_avail(current_vx_info(), numpages))
++ return -ENOSPC;
++
+ shp = ipc_rcu_alloc(sizeof(*shp));
+ if (!shp)
+ return -ENOMEM;
+
+ shp->shm_perm.key = key;
++ shp->shm_perm.xid = vx_current_xid();
+ shp->shm_perm.mode = (shmflg & S_IRWXUGO);
+ shp->mlock_user = NULL;
+
+@@ -407,6 +419,7 @@ static int newseg(struct ipc_namespace *
+ ns->shm_tot += numpages;
+ error = shp->shm_perm.id;
+ shm_unlock(shp);
++ vx_ipcshm_add(current_vx_info(), key, numpages);
+ return error;
+
+ no_id:
+diff -NurpP --minimal linux-2.6.32.1/kernel/capability.c linux-2.6.32.1-vs2.3.0.36.27/kernel/capability.c
+--- linux-2.6.32.1/kernel/capability.c 2009-03-24 14:22:44.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/capability.c 2009-12-03 20:04:56.000000000 +0100
+@@ -14,6 +14,7 @@
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vs_context.h>
+ #include <asm/uaccess.h>
+ #include "cred-internals.h"
+
+@@ -122,6 +123,7 @@ static int cap_validate_magic(cap_user_h
+ return 0;
+ }
+
++
+ /*
+ * The only thing that can change the capabilities of the current
+ * process is the current process. As such, we can't be in this code
+@@ -289,6 +291,8 @@ error:
+ return ret;
+ }
+
++#include <linux/vserver/base.h>
++
+ /**
+ * capable - Determine if the current task has a superior capability in effect
+ * @cap: The capability to be tested for
+@@ -301,6 +305,9 @@ error:
+ */
+ int capable(int cap)
+ {
++ /* here for now so we don't require task locking */
++ if (vs_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap))
++ return 0;
+ if (unlikely(!cap_valid(cap))) {
+ printk(KERN_CRIT "capable() called with invalid cap=%u\n", cap);
+ BUG();
+diff -NurpP --minimal linux-2.6.32.1/kernel/compat.c linux-2.6.32.1-vs2.3.0.36.27/kernel/compat.c
+--- linux-2.6.32.1/kernel/compat.c 2009-09-10 15:26:27.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/compat.c 2009-12-03 20:04:56.000000000 +0100
+@@ -902,7 +902,7 @@ asmlinkage long compat_sys_time(compat_t
+ compat_time_t i;
+ struct timeval tv;
+
+- do_gettimeofday(&tv);
++ vx_gettimeofday(&tv);
+ i = tv.tv_sec;
+
+ if (tloc) {
+@@ -927,7 +927,7 @@ asmlinkage long compat_sys_stime(compat_
+ if (err)
+ return err;
+
+- do_settimeofday(&tv);
++ vx_settimeofday(&tv);
+ return 0;
+ }
+
+diff -NurpP --minimal linux-2.6.32.1/kernel/exit.c linux-2.6.32.1-vs2.3.0.36.27/kernel/exit.c
+--- linux-2.6.32.1/kernel/exit.c 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/exit.c 2009-12-03 20:04:56.000000000 +0100
+@@ -48,6 +48,10 @@
+ #include <linux/fs_struct.h>
+ #include <linux/init_task.h>
+ #include <linux/perf_event.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_pid.h>
+ #include <trace/events/sched.h>
+
+ #include <asm/uaccess.h>
+@@ -488,9 +492,11 @@ static void close_files(struct files_str
+ filp_close(file, files);
+ cond_resched();
+ }
++ vx_openfd_dec(i);
+ }
+ i++;
+ set >>= 1;
++ cond_resched();
+ }
+ }
+ }
+@@ -1011,11 +1017,16 @@ NORET_TYPE void do_exit(long code)
+
+ validate_creds_for_do_exit(tsk);
+
++ /* needs to stay after exit_notify() */
++ exit_vx_info(tsk, code);
++ exit_nx_info(tsk);
++
+ preempt_disable();
+ exit_rcu();
+ /* causes final put_task_struct in finish_task_switch(). */
+ tsk->state = TASK_DEAD;
+ schedule();
++ printk("bad task: %p [%lx]\n", current, current->state);
+ BUG();
+ /* Avoid "noreturn function does return". */
+ for (;;)
+diff -NurpP --minimal linux-2.6.32.1/kernel/fork.c linux-2.6.32.1-vs2.3.0.36.27/kernel/fork.c
+--- linux-2.6.32.1/kernel/fork.c 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/fork.c 2009-12-03 20:04:56.000000000 +0100
+@@ -64,6 +64,10 @@
+ #include <linux/magic.h>
+ #include <linux/perf_event.h>
+ #include <linux/posix-timers.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/pgalloc.h>
+@@ -151,6 +155,8 @@ void free_task(struct task_struct *tsk)
+ account_kernel_stack(tsk->stack, -1);
+ free_thread_info(tsk->stack);
+ rt_mutex_debug_task_free(tsk);
++ clr_vx_info(&tsk->vx_info);
++ clr_nx_info(&tsk->nx_info);
+ ftrace_graph_exit_task(tsk);
+ free_task_struct(tsk);
+ }
+@@ -296,6 +302,8 @@ static int dup_mmap(struct mm_struct *mm
+ mm->free_area_cache = oldmm->mmap_base;
+ mm->cached_hole_size = ~0UL;
+ mm->map_count = 0;
++ __set_mm_counter(mm, file_rss, 0);
++ __set_mm_counter(mm, anon_rss, 0);
+ cpumask_clear(mm_cpumask(mm));
+ mm->mm_rb = RB_ROOT;
+ rb_link = &mm->mm_rb.rb_node;
+@@ -310,7 +318,7 @@ static int dup_mmap(struct mm_struct *mm
+
+ if (mpnt->vm_flags & VM_DONTCOPY) {
+ long pages = vma_pages(mpnt);
+- mm->total_vm -= pages;
++ vx_vmpages_sub(mm, pages);
+ vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
+ -pages);
+ continue;
+@@ -452,8 +460,8 @@ static struct mm_struct * mm_init(struct
+ (current->mm->flags & MMF_INIT_MASK) : default_dump_filter;
+ mm->core_state = NULL;
+ mm->nr_ptes = 0;
+- set_mm_counter(mm, file_rss, 0);
+- set_mm_counter(mm, anon_rss, 0);
++ __set_mm_counter(mm, file_rss, 0);
++ __set_mm_counter(mm, anon_rss, 0);
+ spin_lock_init(&mm->page_table_lock);
+ mm->free_area_cache = TASK_UNMAPPED_BASE;
+ mm->cached_hole_size = ~0UL;
+@@ -463,6 +471,7 @@ static struct mm_struct * mm_init(struct
+ if (likely(!mm_alloc_pgd(mm))) {
+ mm->def_flags = 0;
+ mmu_notifier_mm_init(mm);
++ set_vx_info(&mm->mm_vx_info, p->vx_info);
+ return mm;
+ }
+
+@@ -496,6 +505,7 @@ void __mmdrop(struct mm_struct *mm)
+ mm_free_pgd(mm);
+ destroy_context(mm);
+ mmu_notifier_mm_destroy(mm);
++ clr_vx_info(&mm->mm_vx_info);
+ free_mm(mm);
+ }
+ EXPORT_SYMBOL_GPL(__mmdrop);
+@@ -631,6 +641,7 @@ struct mm_struct *dup_mm(struct task_str
+ goto fail_nomem;
+
+ memcpy(mm, oldmm, sizeof(*mm));
++ mm->mm_vx_info = NULL;
+
+ /* Initializing for Swap token stuff */
+ mm->token_priority = 0;
+@@ -669,6 +680,7 @@ fail_nocontext:
+ * If init_new_context() failed, we cannot use mmput() to free the mm
+ * because it calls destroy_context()
+ */
++ clr_vx_info(&mm->mm_vx_info);
+ mm_free_pgd(mm);
+ free_mm(mm);
+ return NULL;
+@@ -980,6 +992,8 @@ static struct task_struct *copy_process(
+ int retval;
+ struct task_struct *p;
+ int cgroup_callbacks_done = 0;
++ struct vx_info *vxi;
++ struct nx_info *nxi;
+
+ if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS))
+ return ERR_PTR(-EINVAL);
+@@ -1026,12 +1040,28 @@ static struct task_struct *copy_process(
+ DEBUG_LOCKS_WARN_ON(!p->hardirqs_enabled);
+ DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
+ #endif
++ init_vx_info(&p->vx_info, current_vx_info());
++ init_nx_info(&p->nx_info, current_nx_info());
++
++ /* check vserver memory */
++ if (p->mm && !(clone_flags & CLONE_VM)) {
++ if (vx_vmpages_avail(p->mm, p->mm->total_vm))
++ vx_pages_add(p->vx_info, RLIMIT_AS, p->mm->total_vm);
++ else
++ goto bad_fork_free;
++ }
++ if (p->mm && vx_flags(VXF_FORK_RSS, 0)) {
++ if (!vx_rss_avail(p->mm, get_mm_counter(p->mm, file_rss)))
++ goto bad_fork_cleanup_vm;
++ }
+ retval = -EAGAIN;
++ if (!vx_nproc_avail(1))
++ goto bad_fork_cleanup_vm;
+ if (atomic_read(&p->real_cred->user->processes) >=
+ p->signal->rlim[RLIMIT_NPROC].rlim_cur) {
+ if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) &&
+ p->real_cred->user != INIT_USER)
+- goto bad_fork_free;
++ goto bad_fork_cleanup_vm;
+ }
+
+ retval = copy_creds(p, clone_flags);
+@@ -1300,6 +1330,18 @@ static struct task_struct *copy_process(
+
+ total_forks++;
+ spin_unlock(¤t->sighand->siglock);
++
++ /* p is copy of current */
++ vxi = p->vx_info;
++ if (vxi) {
++ claim_vx_info(vxi, p);
++ atomic_inc(&vxi->cvirt.nr_threads);
++ atomic_inc(&vxi->cvirt.total_forks);
++ vx_nproc_inc(p);
++ }
++ nxi = p->nx_info;
++ if (nxi)
++ claim_nx_info(nxi, p);
+ write_unlock_irq(&tasklist_lock);
+ proc_fork_connector(p);
+ cgroup_post_fork(p);
+@@ -1341,6 +1383,9 @@ bad_fork_cleanup_cgroup:
+ bad_fork_cleanup_count:
+ atomic_dec(&p->cred->user->processes);
+ exit_creds(p);
++bad_fork_cleanup_vm:
++ if (p->mm && !(clone_flags & CLONE_VM))
++ vx_pages_sub(p->vx_info, RLIMIT_AS, p->mm->total_vm);
+ bad_fork_free:
+ free_task(p);
+ fork_out:
+diff -NurpP --minimal linux-2.6.32.1/kernel/kthread.c linux-2.6.32.1-vs2.3.0.36.27/kernel/kthread.c
+--- linux-2.6.32.1/kernel/kthread.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/kthread.c 2009-12-03 20:04:56.000000000 +0100
+@@ -14,6 +14,7 @@
+ #include <linux/file.h>
+ #include <linux/module.h>
+ #include <linux/mutex.h>
++#include <linux/vs_pid.h>
+ #include <trace/events/sched.h>
+
+ static DEFINE_SPINLOCK(kthread_create_lock);
+diff -NurpP --minimal linux-2.6.32.1/kernel/Makefile linux-2.6.32.1-vs2.3.0.36.27/kernel/Makefile
+--- linux-2.6.32.1/kernel/Makefile 2009-12-03 20:02:57.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/Makefile 2009-12-03 20:04:56.000000000 +0100
+@@ -23,6 +23,7 @@ CFLAGS_REMOVE_cgroup-debug.o = -pg
+ CFLAGS_REMOVE_sched_clock.o = -pg
+ endif
+
++obj-y += vserver/
+ obj-$(CONFIG_FREEZER) += freezer.o
+ obj-$(CONFIG_PROFILING) += profile.o
+ obj-$(CONFIG_SYSCTL_SYSCALL_CHECK) += sysctl_check.o
+diff -NurpP --minimal linux-2.6.32.1/kernel/nsproxy.c linux-2.6.32.1-vs2.3.0.36.27/kernel/nsproxy.c
+--- linux-2.6.32.1/kernel/nsproxy.c 2009-09-10 15:26:28.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/nsproxy.c 2009-12-03 20:04:56.000000000 +0100
+@@ -19,6 +19,8 @@
+ #include <linux/mnt_namespace.h>
+ #include <linux/utsname.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vserver/global.h>
++#include <linux/vserver/debug.h>
+ #include <net/net_namespace.h>
+ #include <linux/ipc_namespace.h>
+
+@@ -31,8 +33,11 @@ static inline struct nsproxy *create_nsp
+ struct nsproxy *nsproxy;
+
+ nsproxy = kmem_cache_alloc(nsproxy_cachep, GFP_KERNEL);
+- if (nsproxy)
++ if (nsproxy) {
+ atomic_set(&nsproxy->count, 1);
++ atomic_inc(&vs_global_nsproxy);
++ }
++ vxdprintk(VXD_CBIT(space, 2), "create_nsproxy = %p[1]", nsproxy);
+ return nsproxy;
+ }
+
+@@ -41,41 +46,52 @@ static inline struct nsproxy *create_nsp
+ * Return the newly created nsproxy. Do not attach this to the task,
+ * leave it to the caller to do proper locking and attach it to task.
+ */
+-static struct nsproxy *create_new_namespaces(unsigned long flags,
+- struct task_struct *tsk, struct fs_struct *new_fs)
++static struct nsproxy *unshare_namespaces(unsigned long flags,
++ struct nsproxy *orig, struct fs_struct *new_fs)
+ {
+ struct nsproxy *new_nsp;
+ int err;
+
++ vxdprintk(VXD_CBIT(space, 4),
++ "unshare_namespaces(0x%08lx,%p,%p)",
++ flags, orig, new_fs);
++
+ new_nsp = create_nsproxy();
+ if (!new_nsp)
+ return ERR_PTR(-ENOMEM);
+
+- new_nsp->mnt_ns = copy_mnt_ns(flags, tsk->nsproxy->mnt_ns, new_fs);
++ new_nsp->mnt_ns = copy_mnt_ns(flags, orig->mnt_ns, new_fs);
+ if (IS_ERR(new_nsp->mnt_ns)) {
+ err = PTR_ERR(new_nsp->mnt_ns);
+ goto out_ns;
+ }
+
+- new_nsp->uts_ns = copy_utsname(flags, tsk->nsproxy->uts_ns);
++ new_nsp->uts_ns = copy_utsname(flags, orig->uts_ns);
+ if (IS_ERR(new_nsp->uts_ns)) {
+ err = PTR_ERR(new_nsp->uts_ns);
+ goto out_uts;
+ }
+
+- new_nsp->ipc_ns = copy_ipcs(flags, tsk->nsproxy->ipc_ns);
++ new_nsp->ipc_ns = copy_ipcs(flags, orig->ipc_ns);
+ if (IS_ERR(new_nsp->ipc_ns)) {
+ err = PTR_ERR(new_nsp->ipc_ns);
+ goto out_ipc;
+ }
+
+- new_nsp->pid_ns = copy_pid_ns(flags, task_active_pid_ns(tsk));
++ new_nsp->pid_ns = copy_pid_ns(flags, orig->pid_ns);
+ if (IS_ERR(new_nsp->pid_ns)) {
+ err = PTR_ERR(new_nsp->pid_ns);
+ goto out_pid;
+ }
+
+- new_nsp->net_ns = copy_net_ns(flags, tsk->nsproxy->net_ns);
++ /* disabled now?
++ new_nsp->user_ns = copy_user_ns(flags, orig->user_ns);
++ if (IS_ERR(new_nsp->user_ns)) {
++ err = PTR_ERR(new_nsp->user_ns);
++ goto out_user;
++ } */
++
++ new_nsp->net_ns = copy_net_ns(flags, orig->net_ns);
+ if (IS_ERR(new_nsp->net_ns)) {
+ err = PTR_ERR(new_nsp->net_ns);
+ goto out_net;
+@@ -100,6 +116,38 @@ out_ns:
+ return ERR_PTR(err);
+ }
+
++static struct nsproxy *create_new_namespaces(int flags, struct task_struct *tsk,
++ struct fs_struct *new_fs)
++{
++ return unshare_namespaces(flags, tsk->nsproxy, new_fs);
++}
++
++/*
++ * copies the nsproxy, setting refcount to 1, and grabbing a
++ * reference to all contained namespaces.
++ */
++struct nsproxy *copy_nsproxy(struct nsproxy *orig)
++{
++ struct nsproxy *ns = create_nsproxy();
++
++ if (ns) {
++ memcpy(ns, orig, sizeof(struct nsproxy));
++ atomic_set(&ns->count, 1);
++
++ if (ns->mnt_ns)
++ get_mnt_ns(ns->mnt_ns);
++ if (ns->uts_ns)
++ get_uts_ns(ns->uts_ns);
++ if (ns->ipc_ns)
++ get_ipc_ns(ns->ipc_ns);
++ if (ns->pid_ns)
++ get_pid_ns(ns->pid_ns);
++ if (ns->net_ns)
++ get_net(ns->net_ns);
++ }
++ return ns;
++}
++
+ /*
+ * called from clone. This now handles copy for nsproxy and all
+ * namespaces therein.
+@@ -107,9 +155,12 @@ out_ns:
+ int copy_namespaces(unsigned long flags, struct task_struct *tsk)
+ {
+ struct nsproxy *old_ns = tsk->nsproxy;
+- struct nsproxy *new_ns;
++ struct nsproxy *new_ns = NULL;
+ int err = 0;
+
++ vxdprintk(VXD_CBIT(space, 7), "copy_namespaces(0x%08lx,%p[%p])",
++ flags, tsk, old_ns);
++
+ if (!old_ns)
+ return 0;
+
+@@ -119,7 +170,7 @@ int copy_namespaces(unsigned long flags,
+ CLONE_NEWPID | CLONE_NEWNET)))
+ return 0;
+
+- if (!capable(CAP_SYS_ADMIN)) {
++ if (!vx_can_unshare(CAP_SYS_ADMIN, flags)) {
+ err = -EPERM;
+ goto out;
+ }
+@@ -146,6 +197,9 @@ int copy_namespaces(unsigned long flags,
+
+ out:
+ put_nsproxy(old_ns);
++ vxdprintk(VXD_CBIT(space, 3),
++ "copy_namespaces(0x%08lx,%p[%p]) = %d [%p]",
++ flags, tsk, old_ns, err, new_ns);
+ return err;
+ }
+
+@@ -159,7 +213,9 @@ void free_nsproxy(struct nsproxy *ns)
+ put_ipc_ns(ns->ipc_ns);
+ if (ns->pid_ns)
+ put_pid_ns(ns->pid_ns);
+- put_net(ns->net_ns);
++ if (ns->net_ns)
++ put_net(ns->net_ns);
++ atomic_dec(&vs_global_nsproxy);
+ kmem_cache_free(nsproxy_cachep, ns);
+ }
+
+@@ -172,11 +228,15 @@ int unshare_nsproxy_namespaces(unsigned
+ {
+ int err = 0;
+
++ vxdprintk(VXD_CBIT(space, 4),
++ "unshare_nsproxy_namespaces(0x%08lx,[%p])",
++ unshare_flags, current->nsproxy);
++
+ if (!(unshare_flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC |
+ CLONE_NEWNET)))
+ return 0;
+
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_can_unshare(CAP_SYS_ADMIN, unshare_flags))
+ return -EPERM;
+
+ *new_nsp = create_new_namespaces(unshare_flags, current,
+diff -NurpP --minimal linux-2.6.32.1/kernel/pid.c linux-2.6.32.1-vs2.3.0.36.27/kernel/pid.c
+--- linux-2.6.32.1/kernel/pid.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/pid.c 2009-12-03 20:04:56.000000000 +0100
+@@ -36,6 +36,7 @@
+ #include <linux/pid_namespace.h>
+ #include <linux/init_task.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_pid.h>
+
+ #define pid_hashfn(nr, ns) \
+ hash_long((unsigned long)nr + (unsigned long)ns, pidhash_shift)
+@@ -305,7 +306,7 @@ EXPORT_SYMBOL_GPL(find_pid_ns);
+
+ struct pid *find_vpid(int nr)
+ {
+- return find_pid_ns(nr, current->nsproxy->pid_ns);
++ return find_pid_ns(vx_rmap_pid(nr), current->nsproxy->pid_ns);
+ }
+ EXPORT_SYMBOL_GPL(find_vpid);
+
+@@ -365,6 +366,9 @@ void transfer_pid(struct task_struct *ol
+ struct task_struct *pid_task(struct pid *pid, enum pid_type type)
+ {
+ struct task_struct *result = NULL;
++
++ if (type == PIDTYPE_REALPID)
++ type = PIDTYPE_PID;
+ if (pid) {
+ struct hlist_node *first;
+ first = rcu_dereference(pid->tasks[type].first);
+@@ -380,7 +384,7 @@ EXPORT_SYMBOL(pid_task);
+ */
+ struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
+ {
+- return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
++ return pid_task(find_pid_ns(vx_rmap_pid(nr), ns), PIDTYPE_PID);
+ }
+
+ struct task_struct *find_task_by_vpid(pid_t vnr)
+@@ -422,7 +426,7 @@ struct pid *find_get_pid(pid_t nr)
+ }
+ EXPORT_SYMBOL_GPL(find_get_pid);
+
+-pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
++pid_t pid_unmapped_nr_ns(struct pid *pid, struct pid_namespace *ns)
+ {
+ struct upid *upid;
+ pid_t nr = 0;
+@@ -435,6 +439,11 @@ pid_t pid_nr_ns(struct pid *pid, struct
+ return nr;
+ }
+
++pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
++{
++ return vx_map_pid(pid_unmapped_nr_ns(pid, ns));
++}
++
+ pid_t pid_vnr(struct pid *pid)
+ {
+ return pid_nr_ns(pid, current->nsproxy->pid_ns);
+diff -NurpP --minimal linux-2.6.32.1/kernel/pid_namespace.c linux-2.6.32.1-vs2.3.0.36.27/kernel/pid_namespace.c
+--- linux-2.6.32.1/kernel/pid_namespace.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/pid_namespace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -13,6 +13,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/err.h>
+ #include <linux/acct.h>
++#include <linux/vserver/global.h>
+
+ #define BITS_PER_PAGE (PAGE_SIZE*8)
+
+@@ -86,6 +87,7 @@ static struct pid_namespace *create_pid_
+ goto out_free_map;
+
+ kref_init(&ns->kref);
++ atomic_inc(&vs_global_pid_ns);
+ ns->level = level;
+ ns->parent = get_pid_ns(parent_pid_ns);
+
+@@ -111,6 +113,7 @@ static void destroy_pid_namespace(struct
+
+ for (i = 0; i < PIDMAP_ENTRIES; i++)
+ kfree(ns->pidmap[i].page);
++ atomic_dec(&vs_global_pid_ns);
+ kmem_cache_free(pid_ns_cachep, ns);
+ }
+
+diff -NurpP --minimal linux-2.6.32.1/kernel/posix-timers.c linux-2.6.32.1-vs2.3.0.36.27/kernel/posix-timers.c
+--- linux-2.6.32.1/kernel/posix-timers.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/posix-timers.c 2009-12-03 20:04:56.000000000 +0100
+@@ -46,6 +46,7 @@
+ #include <linux/wait.h>
+ #include <linux/workqueue.h>
+ #include <linux/module.h>
++#include <linux/vs_context.h>
+
+ /*
+ * Management arrays for POSIX timers. Timers are kept in slab memory
+@@ -363,6 +364,7 @@ int posix_timer_event(struct k_itimer *t
+ {
+ struct task_struct *task;
+ int shared, ret = -1;
++
+ /*
+ * FIXME: if ->sigq is queued we can race with
+ * dequeue_signal()->do_schedule_next_timer().
+@@ -379,10 +381,18 @@ int posix_timer_event(struct k_itimer *t
+ rcu_read_lock();
+ task = pid_task(timr->it_pid, PIDTYPE_PID);
+ if (task) {
++ struct vx_info_save vxis;
++ struct vx_info *vxi;
++
++ vxi = get_vx_info(task->vx_info);
++ enter_vx_info(vxi, &vxis);
+ shared = !(timr->it_sigev_notify & SIGEV_THREAD_ID);
+ ret = send_sigqueue(timr->sigq, task, shared);
++ leave_vx_info(&vxis);
++ put_vx_info(vxi);
+ }
+ rcu_read_unlock();
++
+ /* If we failed to send the signal the timer stops. */
+ return ret > 0;
+ }
+diff -NurpP --minimal linux-2.6.32.1/kernel/printk.c linux-2.6.32.1-vs2.3.0.36.27/kernel/printk.c
+--- linux-2.6.32.1/kernel/printk.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/printk.c 2009-12-03 20:04:56.000000000 +0100
+@@ -33,6 +33,7 @@
+ #include <linux/bootmem.h>
+ #include <linux/syscalls.h>
+ #include <linux/kexec.h>
++#include <linux/vs_cvirt.h>
+
+ #include <asm/uaccess.h>
+
+@@ -276,18 +277,13 @@ int do_syslog(int type, char __user *buf
+ unsigned i, j, limit, count;
+ int do_clear = 0;
+ char c;
+- int error = 0;
++ int error;
+
+ error = security_syslog(type);
+ if (error)
+ return error;
+
+- switch (type) {
+- case 0: /* Close log */
+- break;
+- case 1: /* Open log */
+- break;
+- case 2: /* Read from log */
++ if ((type >= 2) && (type <= 4)) {
+ error = -EINVAL;
+ if (!buf || len < 0)
+ goto out;
+@@ -298,6 +294,16 @@ int do_syslog(int type, char __user *buf
+ error = -EFAULT;
+ goto out;
+ }
++ }
++ if (!vx_check(0, VS_ADMIN|VS_WATCH))
++ return vx_do_syslog(type, buf, len);
++
++ switch (type) {
++ case 0: /* Close log */
++ break;
++ case 1: /* Open log */
++ break;
++ case 2: /* Read from log */
+ error = wait_event_interruptible(log_wait,
+ (log_start - log_end));
+ if (error)
+@@ -322,16 +328,6 @@ int do_syslog(int type, char __user *buf
+ do_clear = 1;
+ /* FALL THRU */
+ case 3: /* Read last kernel messages */
+- error = -EINVAL;
+- if (!buf || len < 0)
+- goto out;
+- error = 0;
+- if (!len)
+- goto out;
+- if (!access_ok(VERIFY_WRITE, buf, len)) {
+- error = -EFAULT;
+- goto out;
+- }
+ count = len;
+ if (count > log_buf_len)
+ count = log_buf_len;
+diff -NurpP --minimal linux-2.6.32.1/kernel/ptrace.c linux-2.6.32.1-vs2.3.0.36.27/kernel/ptrace.c
+--- linux-2.6.32.1/kernel/ptrace.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/ptrace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -22,6 +22,7 @@
+ #include <linux/pid_namespace.h>
+ #include <linux/syscalls.h>
+ #include <linux/uaccess.h>
++#include <linux/vs_context.h>
+
+
+ /*
+@@ -151,6 +152,11 @@ int __ptrace_may_access(struct task_stru
+ dumpable = get_dumpable(task->mm);
+ if (!dumpable && !capable(CAP_SYS_PTRACE))
+ return -EPERM;
++ if (!vx_check(task->xid, VS_ADMIN_P|VS_IDENT))
++ return -EPERM;
++ if (!vx_check(task->xid, VS_IDENT) &&
++ !task_vx_flags(task, VXF_STATE_ADMIN, 0))
++ return -EACCES;
+
+ return security_ptrace_access_check(task, mode);
+ }
+@@ -621,6 +627,10 @@ SYSCALL_DEFINE4(ptrace, long, request, l
+ goto out;
+ }
+
++ ret = -EPERM;
++ if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
++ goto out_put_task_struct;
++
+ if (request == PTRACE_ATTACH) {
+ ret = ptrace_attach(child);
+ /*
+diff -NurpP --minimal linux-2.6.32.1/kernel/sched.c linux-2.6.32.1-vs2.3.0.36.27/kernel/sched.c
+--- linux-2.6.32.1/kernel/sched.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/sched.c 2009-12-03 20:04:56.000000000 +0100
+@@ -71,6 +71,8 @@
+ #include <linux/debugfs.h>
+ #include <linux/ctype.h>
+ #include <linux/ftrace.h>
++#include <linux/vs_sched.h>
++#include <linux/vs_cvirt.h>
+
+ #include <asm/tlb.h>
+ #include <asm/irq_regs.h>
+@@ -237,6 +239,15 @@ static DEFINE_MUTEX(sched_domains_mutex)
+
+ #include <linux/cgroup.h>
+
++#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_CFS_HARD_LIMITS)
++struct cfs_bandwidth {
++ spinlock_t cfs_runtime_lock;
++ ktime_t cfs_period;
++ u64 cfs_runtime;
++ struct hrtimer cfs_period_timer;
++};
++#endif
++
+ struct cfs_rq;
+
+ static LIST_HEAD(task_groups);
+@@ -257,6 +268,9 @@ struct task_group {
+ /* runqueue "owned" by this group on each cpu */
+ struct cfs_rq **cfs_rq;
+ unsigned long shares;
++#ifdef CONFIG_CFS_HARD_LIMITS
++ struct cfs_bandwidth cfs_bandwidth;
++#endif
+ #endif
+
+ #ifdef CONFIG_RT_GROUP_SCHED
+@@ -446,6 +460,19 @@ struct cfs_rq {
+ unsigned long rq_weight;
+ #endif
+ #endif
++#ifdef CONFIG_CFS_HARD_LIMITS
++ /* set when the group is throttled on this cpu */
++ int cfs_throttled;
++
++ /* runtime currently consumed by the group on this rq */
++ u64 cfs_time;
++
++ /* runtime available to the group on this rq */
++ u64 cfs_runtime;
++
++ /* Protects the cfs runtime related fields of this cfs_rq */
++ spinlock_t cfs_runtime_lock;
++#endif
+ };
+
+ /* Real-Time classes' related field in a runqueue: */
+@@ -1607,6 +1634,7 @@ static void update_group_shares_cpu(stru
+ }
+ }
+
++static inline int cfs_rq_throttled(struct cfs_rq *cfs_rq);
+ /*
+ * Re-compute the task group their per cpu shares over the given domain.
+ * This needs to be done in a bottom-up fashion because the rq weight of a
+@@ -1634,8 +1662,10 @@ static int tg_shares_up(struct task_grou
+ * If there are currently no tasks on the cpu pretend there
+ * is one of average load so that when a new task gets to
+ * run here it will not get delayed by group starvation.
++ * Also if the group is throttled on this cpu, pretend that
++ * it has no tasks.
+ */
+- if (!weight)
++ if (!weight || cfs_rq_throttled(tg->cfs_rq[i]))
+ weight = NICE_0_LOAD;
+
+ rq_weight += weight;
+@@ -1811,6 +1841,175 @@ static void cfs_rq_set_shares(struct cfs
+
+ static void calc_load_account_active(struct rq *this_rq);
+
++
++#if defined(CONFIG_RT_GROUP_SCHED) || defined(CONFIG_FAIR_GROUP_SCHED)
++
++#ifdef CONFIG_SMP
++static inline const struct cpumask *sched_bw_period_mask(void)
++{
++ return cpu_rq(smp_processor_id())->rd->span;
++}
++#else /* !CONFIG_SMP */
++static inline const struct cpumask *sched_bw_period_mask(void)
++{
++ return cpu_online_mask;
++}
++#endif /* CONFIG_SMP */
++
++#else
++static inline const struct cpumask *sched_bw_period_mask(void)
++{
++ return cpu_online_mask;
++}
++
++#endif
++
++#ifdef CONFIG_FAIR_GROUP_SCHED
++#ifdef CONFIG_CFS_HARD_LIMITS
++
++/*
++ * Runtime allowed for a cfs group before it is hard limited.
++ * default: Infinite which means no hard limiting.
++ */
++u64 sched_cfs_runtime = RUNTIME_INF;
++
++/*
++ * period over which we hard limit the cfs group's bandwidth.
++ * default: 0.5s
++ */
++u64 sched_cfs_period = 500000;
++
++static inline u64 global_cfs_period(void)
++{
++ return sched_cfs_period * NSEC_PER_USEC;
++}
++
++static inline u64 global_cfs_runtime(void)
++{
++ return RUNTIME_INF;
++}
++
++void do_sched_cfs_period_timer(struct cfs_bandwidth *cfs_b);
++
++static inline void cfs_rq_runtime_lock(struct cfs_rq *cfs_rq)
++{
++ spin_lock(&cfs_rq->cfs_runtime_lock);
++}
++
++static inline void cfs_rq_runtime_unlock(struct cfs_rq *cfs_rq)
++{
++ spin_unlock(&cfs_rq->cfs_runtime_lock);
++}
++
++/*
++ * Refresh the runtimes of the throttled groups.
++ * But nothing much to do now, will populate this in later patches.
++ */
++static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
++{
++ struct cfs_bandwidth *cfs_b =
++ container_of(timer, struct cfs_bandwidth, cfs_period_timer);
++
++ do_sched_cfs_period_timer(cfs_b);
++ hrtimer_add_expires_ns(timer, ktime_to_ns(cfs_b->cfs_period));
++ return HRTIMER_RESTART;
++}
++
++/*
++ * TODO: Check if this kind of timer setup is sufficient for cfs or
++ * should we do what rt is doing.
++ */
++static void start_cfs_bandwidth(struct task_group *tg)
++{
++ struct cfs_bandwidth *cfs_b = &tg->cfs_bandwidth;
++
++ /*
++ * Timer isn't setup for groups with infinite runtime
++ */
++ if (cfs_b->cfs_runtime == RUNTIME_INF)
++ return;
++
++ if (hrtimer_active(&cfs_b->cfs_period_timer))
++ return;
++
++ hrtimer_start_range_ns(&cfs_b->cfs_period_timer, cfs_b->cfs_period,
++ 0, HRTIMER_MODE_REL);
++}
++
++static void init_cfs_bandwidth(struct task_group *tg)
++{
++ struct cfs_bandwidth *cfs_b = &tg->cfs_bandwidth;
++
++ cfs_b->cfs_period = ns_to_ktime(global_cfs_period());
++ cfs_b->cfs_runtime = global_cfs_runtime();
++
++ spin_lock_init(&cfs_b->cfs_runtime_lock);
++
++ hrtimer_init(&cfs_b->cfs_period_timer,
++ CLOCK_MONOTONIC, HRTIMER_MODE_REL);
++ cfs_b->cfs_period_timer.function = &sched_cfs_period_timer;
++}
++
++static inline void destroy_cfs_bandwidth(struct task_group *tg)
++{
++ hrtimer_cancel(&tg->cfs_bandwidth.cfs_period_timer);
++}
++
++static void init_cfs_hard_limits(struct cfs_rq *cfs_rq, struct task_group *tg)
++{
++ cfs_rq->cfs_time = 0;
++ cfs_rq->cfs_throttled = 0;
++ cfs_rq->cfs_runtime = tg->cfs_bandwidth.cfs_runtime;
++ spin_lock_init(&cfs_rq->cfs_runtime_lock);
++}
++
++#else /* !CONFIG_CFS_HARD_LIMITS */
++
++static void init_cfs_bandwidth(struct task_group *tg)
++{
++ return;
++}
++
++static inline void destroy_cfs_bandwidth(struct task_group *tg)
++{
++ return;
++}
++
++static void init_cfs_hard_limits(struct cfs_rq *cfs_rq, struct task_group *tg)
++{
++ return;
++}
++
++static inline void cfs_rq_runtime_lock(struct cfs_rq *cfs_rq)
++{
++ return;
++}
++
++static inline void cfs_rq_runtime_unlock(struct cfs_rq *cfs_rq)
++{
++ return;
++}
++
++#endif /* CONFIG_CFS_HARD_LIMITS */
++#else /* !CONFIG_FAIR_GROUP_SCHED */
++
++static inline void cfs_rq_runtime_lock(struct cfs_rq *cfs_rq)
++{
++ return;
++}
++
++static inline void cfs_rq_runtime_unlock(struct cfs_rq *cfs_rq)
++{
++ return;
++}
++
++static inline int cfs_rq_throttled(struct cfs_rq *cfs_rq)
++{
++ return 0;
++}
++
++#endif /* CONFIG_FAIR_GROUP_SCHED */
++
+ #include "sched_stats.h"
+ #include "sched_idletask.c"
+ #include "sched_fair.c"
+@@ -2965,9 +3164,17 @@ EXPORT_SYMBOL(avenrun);
+ */
+ void get_avenrun(unsigned long *loads, unsigned long offset, int shift)
+ {
+- loads[0] = (avenrun[0] + offset) << shift;
+- loads[1] = (avenrun[1] + offset) << shift;
+- loads[2] = (avenrun[2] + offset) << shift;
++ if (vx_flags(VXF_VIRT_LOAD, 0)) {
++ struct vx_info *vxi = current_vx_info();
++
++ loads[0] = (vxi->cvirt.load[0] + offset) << shift;
++ loads[1] = (vxi->cvirt.load[1] + offset) << shift;
++ loads[2] = (vxi->cvirt.load[2] + offset) << shift;
++ } else {
++ loads[0] = (avenrun[0] + offset) << shift;
++ loads[1] = (avenrun[1] + offset) << shift;
++ loads[2] = (avenrun[2] + offset) << shift;
++ }
+ }
+
+ static unsigned long
+@@ -5006,16 +5213,19 @@ void account_user_time(struct task_struc
+ cputime_t cputime_scaled)
+ {
+ struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
++ struct vx_info *vxi = p->vx_info; /* p is _always_ current */
+ cputime64_t tmp;
++ int nice = (TASK_NICE(p) > 0);
+
+ /* Add user time to process. */
+ p->utime = cputime_add(p->utime, cputime);
+ p->utimescaled = cputime_add(p->utimescaled, cputime_scaled);
++ vx_account_user(vxi, cputime, nice);
+ account_group_user_time(p, cputime);
+
+ /* Add user time to cpustat. */
+ tmp = cputime_to_cputime64(cputime);
+- if (TASK_NICE(p) > 0)
++ if (nice)
+ cpustat->nice = cputime64_add(cpustat->nice, tmp);
+ else
+ cpustat->user = cputime64_add(cpustat->user, tmp);
+@@ -5061,6 +5271,7 @@ void account_system_time(struct task_str
+ cputime_t cputime, cputime_t cputime_scaled)
+ {
+ struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
++ struct vx_info *vxi = p->vx_info; /* p is _always_ current */
+ cputime64_t tmp;
+
+ if ((p->flags & PF_VCPU) && (irq_count() - hardirq_offset == 0)) {
+@@ -5071,6 +5282,7 @@ void account_system_time(struct task_str
+ /* Add system time to process. */
+ p->stime = cputime_add(p->stime, cputime);
+ p->stimescaled = cputime_add(p->stimescaled, cputime_scaled);
++ vx_account_system(vxi, cputime, 0 /* do we have idle time? */);
+ account_group_system_time(p, cputime);
+
+ /* Add system time to cpustat. */
+@@ -6106,7 +6318,7 @@ SYSCALL_DEFINE1(nice, int, increment)
+ nice = 19;
+
+ if (increment < 0 && !can_nice(current, nice))
+- return -EPERM;
++ return vx_flags(VXF_IGNEG_NICE, 0) ? 0 : -EPERM;
+
+ retval = security_task_setnice(current, nice);
+ if (retval)
+@@ -9164,6 +9376,32 @@ static int update_sched_domains(struct n
+ }
+ #endif
+
++#ifdef CONFIG_SMP
++static void disable_runtime(struct rq *rq)
++{
++ unsigned long flags;
++
++ spin_lock_irqsave(&rq->lock, flags);
++#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_CFS_HARD_LIMITS)
++ disable_runtime_cfs(rq);
++#endif
++ disable_runtime_rt(rq);
++ spin_unlock_irqrestore(&rq->lock, flags);
++}
++
++static void enable_runtime(struct rq *rq)
++{
++ unsigned long flags;
++
++ spin_lock_irqsave(&rq->lock, flags);
++#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_CFS_HARD_LIMITS)
++ enable_runtime_cfs(rq);
++#endif
++ enable_runtime_rt(rq);
++ spin_unlock_irqrestore(&rq->lock, flags);
++}
++#endif
++
+ static int update_runtime(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+ {
+@@ -9296,6 +9534,7 @@ static void init_tg_cfs_entry(struct tas
+ struct rq *rq = cpu_rq(cpu);
+ tg->cfs_rq[cpu] = cfs_rq;
+ init_cfs_rq(cfs_rq, rq);
++ init_cfs_hard_limits(cfs_rq, tg);
+ cfs_rq->tg = tg;
+ if (add)
+ list_add(&cfs_rq->leaf_cfs_rq_list, &rq->leaf_cfs_rq_list);
+@@ -9425,6 +9664,10 @@ void __init sched_init(void)
+ #endif /* CONFIG_USER_SCHED */
+ #endif /* CONFIG_RT_GROUP_SCHED */
+
++#ifdef CONFIG_FAIR_GROUP_SCHED
++ init_cfs_bandwidth(&init_task_group);
++#endif
++
+ #ifdef CONFIG_GROUP_SCHED
+ list_add(&init_task_group.list, &task_groups);
+ INIT_LIST_HEAD(&init_task_group.children);
+@@ -9451,6 +9694,7 @@ void __init sched_init(void)
+ init_cfs_rq(&rq->cfs, rq);
+ init_rt_rq(&rq->rt, rq);
+ #ifdef CONFIG_FAIR_GROUP_SCHED
++ init_cfs_hard_limits(&rq->cfs, &init_task_group);
+ init_task_group.shares = init_task_group_load;
+ INIT_LIST_HEAD(&rq->leaf_cfs_rq_list);
+ #ifdef CONFIG_CGROUP_SCHED
+@@ -9726,6 +9970,7 @@ static void free_fair_sched_group(struct
+ {
+ int i;
+
++ destroy_cfs_bandwidth(tg);
+ for_each_possible_cpu(i) {
+ if (tg->cfs_rq)
+ kfree(tg->cfs_rq[i]);
+@@ -9752,6 +9997,7 @@ int alloc_fair_sched_group(struct task_g
+ if (!tg->se)
+ goto err;
+
++ init_cfs_bandwidth(tg);
+ tg->shares = NICE_0_LOAD;
+
+ for_each_possible_cpu(i) {
+@@ -10475,6 +10721,100 @@ static u64 cpu_shares_read_u64(struct cg
+
+ return (u64) tg->shares;
+ }
++
++#ifdef CONFIG_CFS_HARD_LIMITS
++
++static int tg_set_cfs_bandwidth(struct task_group *tg,
++ u64 cfs_period, u64 cfs_runtime)
++{
++ int i;
++
++ spin_lock_irq(&tg->cfs_bandwidth.cfs_runtime_lock);
++ tg->cfs_bandwidth.cfs_period = ns_to_ktime(cfs_period);
++ tg->cfs_bandwidth.cfs_runtime = cfs_runtime;
++
++ for_each_possible_cpu(i) {
++ struct cfs_rq *cfs_rq = tg->cfs_rq[i];
++
++ cfs_rq_runtime_lock(cfs_rq);
++ cfs_rq->cfs_runtime = cfs_runtime;
++ cfs_rq_runtime_unlock(cfs_rq);
++ }
++
++ start_cfs_bandwidth(tg);
++ spin_unlock_irq(&tg->cfs_bandwidth.cfs_runtime_lock);
++ return 0;
++}
++
++int tg_set_cfs_runtime(struct task_group *tg, long cfs_runtime_us)
++{
++ u64 cfs_runtime, cfs_period;
++
++ cfs_period = ktime_to_ns(tg->cfs_bandwidth.cfs_period);
++ cfs_runtime = (u64)cfs_runtime_us * NSEC_PER_USEC;
++ if (cfs_runtime_us < 0)
++ cfs_runtime = RUNTIME_INF;
++
++ return tg_set_cfs_bandwidth(tg, cfs_period, cfs_runtime);
++}
++
++long tg_get_cfs_runtime(struct task_group *tg)
++{
++ u64 cfs_runtime_us;
++
++ if (tg->cfs_bandwidth.cfs_runtime == RUNTIME_INF)
++ return -1;
++
++ cfs_runtime_us = tg->cfs_bandwidth.cfs_runtime;
++ do_div(cfs_runtime_us, NSEC_PER_USEC);
++ return cfs_runtime_us;
++}
++
++int tg_set_cfs_period(struct task_group *tg, long cfs_period_us)
++{
++ u64 cfs_runtime, cfs_period;
++
++ cfs_period = (u64)cfs_period_us * NSEC_PER_USEC;
++ cfs_runtime = tg->cfs_bandwidth.cfs_runtime;
++
++ if (cfs_period == 0)
++ return -EINVAL;
++
++ return tg_set_cfs_bandwidth(tg, cfs_period, cfs_runtime);
++}
++
++long tg_get_cfs_period(struct task_group *tg)
++{
++ u64 cfs_period_us;
++
++ cfs_period_us = ktime_to_ns(tg->cfs_bandwidth.cfs_period);
++ do_div(cfs_period_us, NSEC_PER_USEC);
++ return cfs_period_us;
++}
++
++static s64 cpu_cfs_runtime_read_s64(struct cgroup *cgrp, struct cftype *cft)
++{
++ return tg_get_cfs_runtime(cgroup_tg(cgrp));
++}
++
++static int cpu_cfs_runtime_write_s64(struct cgroup *cgrp, struct cftype *cftype,
++ s64 cfs_runtime_us)
++{
++ return tg_set_cfs_runtime(cgroup_tg(cgrp), cfs_runtime_us);
++}
++
++static u64 cpu_cfs_period_read_u64(struct cgroup *cgrp, struct cftype *cft)
++{
++ return tg_get_cfs_period(cgroup_tg(cgrp));
++}
++
++static int cpu_cfs_period_write_u64(struct cgroup *cgrp, struct cftype *cftype,
++ u64 cfs_period_us)
++{
++ return tg_set_cfs_period(cgroup_tg(cgrp), cfs_period_us);
++}
++
++#endif /* CONFIG_CFS_HARD_LIMITS */
+ #endif /* CONFIG_FAIR_GROUP_SCHED */
+
+ #ifdef CONFIG_RT_GROUP_SCHED
+@@ -10508,6 +10848,18 @@ static struct cftype cpu_files[] = {
+ .read_u64 = cpu_shares_read_u64,
+ .write_u64 = cpu_shares_write_u64,
+ },
++#ifdef CONFIG_CFS_HARD_LIMITS
++ {
++ .name = "cfs_runtime_us",
++ .read_s64 = cpu_cfs_runtime_read_s64,
++ .write_s64 = cpu_cfs_runtime_write_s64,
++ },
++ {
++ .name = "cfs_period_us",
++ .read_u64 = cpu_cfs_period_read_u64,
++ .write_u64 = cpu_cfs_period_write_u64,
++ },
++#endif /* CONFIG_CFS_HARD_LIMITS */
+ #endif
+ #ifdef CONFIG_RT_GROUP_SCHED
+ {
+diff -NurpP --minimal linux-2.6.32.1/kernel/sched_debug.c linux-2.6.32.1-vs2.3.0.36.27/kernel/sched_debug.c
+--- linux-2.6.32.1/kernel/sched_debug.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/sched_debug.c 2009-12-03 20:04:56.000000000 +0100
+@@ -80,6 +80,11 @@ static void print_cfs_group_stats(struct
+ PN(se->wait_max);
+ PN(se->wait_sum);
+ P(se->wait_count);
++#ifdef CONFIG_CFS_HARD_LIMITS
++ PN(se->throttle_max);
++ PN(se->throttle_sum);
++ P(se->throttle_count);
++#endif
+ #endif
+ P(se->load.weight);
+ #undef PN
+@@ -214,6 +219,16 @@ void print_cfs_rq(struct seq_file *m, in
+ #ifdef CONFIG_SMP
+ SEQ_printf(m, " .%-30s: %lu\n", "shares", cfs_rq->shares);
+ #endif
++#ifdef CONFIG_CFS_HARD_LIMITS
++ spin_lock_irqsave(&rq->lock, flags);
++ SEQ_printf(m, " .%-30s: %d\n", "cfs_throttled",
++ cfs_rq->cfs_throttled);
++ SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "cfs_time",
++ SPLIT_NS(cfs_rq->cfs_time));
++ SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "cfs_runtime",
++ SPLIT_NS(cfs_rq->cfs_runtime));
++ spin_unlock_irqrestore(&rq->lock, flags);
++#endif /* CONFIG_CFS_HARD_LIMITS */
+ print_cfs_group_stats(m, cpu, cfs_rq->tg);
+ #endif
+ }
+@@ -310,7 +325,7 @@ static int sched_debug_show(struct seq_f
+ u64 now = ktime_to_ns(ktime_get());
+ int cpu;
+
+- SEQ_printf(m, "Sched Debug Version: v0.09, %s %.*s\n",
++ SEQ_printf(m, "Sched Debug Version: v0.10, %s %.*s\n",
+ init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
+diff -NurpP --minimal linux-2.6.32.1/kernel/sched_fair.c linux-2.6.32.1-vs2.3.0.36.27/kernel/sched_fair.c
+--- linux-2.6.32.1/kernel/sched_fair.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/sched_fair.c 2009-12-03 20:04:56.000000000 +0100
+@@ -189,7 +189,308 @@ find_matching_se(struct sched_entity **s
+ }
+ }
+
+-#else /* !CONFIG_FAIR_GROUP_SCHED */
++#ifdef CONFIG_CFS_HARD_LIMITS
++
++static inline void update_stats_throttle_start(struct cfs_rq *cfs_rq,
++ struct sched_entity *se)
++{
++ schedstat_set(se->throttle_start, rq_of(cfs_rq)->clock);
++}
++
++static inline void update_stats_throttle_end(struct cfs_rq *cfs_rq,
++ struct sched_entity *se)
++{
++ schedstat_set(se->throttle_max, max(se->throttle_max,
++ rq_of(cfs_rq)->clock - se->throttle_start));
++ schedstat_set(se->throttle_count, se->throttle_count + 1);
++ schedstat_set(se->throttle_sum, se->throttle_sum +
++ rq_of(cfs_rq)->clock - se->throttle_start);
++ schedstat_set(se->throttle_start, 0);
++}
++
++static inline
++struct cfs_rq *sched_cfs_period_cfs_rq(struct cfs_bandwidth *cfs_b, int cpu)
++{
++ return container_of(cfs_b, struct task_group,
++ cfs_bandwidth)->cfs_rq[cpu];
++}
++
++static inline int cfs_rq_throttled(struct cfs_rq *cfs_rq)
++{
++ return cfs_rq->cfs_throttled;
++}
++
++#ifdef CONFIG_SMP
++/*
++ * Ensure this RQ takes back all the runtime it lend to its neighbours.
++ */
++static void disable_runtime_cfs(struct rq *rq)
++{
++ struct root_domain *rd = rq->rd;
++ struct cfs_rq *cfs_rq;
++
++ if (unlikely(!scheduler_running))
++ return;
++
++ for_each_leaf_cfs_rq(rq, cfs_rq) {
++ struct cfs_bandwidth *cfs_b = &cfs_rq->tg->cfs_bandwidth;
++ s64 want;
++ int i;
++
++ spin_lock(&cfs_b->cfs_runtime_lock);
++ spin_lock(&cfs_rq->cfs_runtime_lock);
++
++ /*
++ * Either we're all are infinity and nobody needs to borrow,
++ * or we're already disabled and this have nothing to do, or
++ * we have exactly the right amount of runtime to take out.
++ */
++ if (cfs_rq->cfs_runtime == RUNTIME_INF ||
++ cfs_rq->cfs_runtime == cfs_b->cfs_runtime)
++ goto balanced;
++ spin_unlock(&cfs_rq->cfs_runtime_lock);
++
++ /*
++ * Calculate the difference between what we started out with
++ * and what we current have, that's the amount of runtime
++ * we lend and now have to reclaim.
++ */
++ want = cfs_b->cfs_runtime - cfs_rq->cfs_runtime;
++
++ /*
++ * Greedy reclaim, take back as much as possible.
++ */
++ for_each_cpu(i, rd->span) {
++ struct cfs_rq *iter = sched_cfs_period_cfs_rq(cfs_b, i);
++ s64 diff;
++
++ /*
++ * Can't reclaim from ourselves or disabled runqueues.
++ */
++ if (iter == cfs_rq || iter->cfs_runtime == RUNTIME_INF)
++ continue;
++
++ spin_lock(&iter->cfs_runtime_lock);
++ if (want > 0) {
++ diff = min_t(s64, iter->cfs_runtime, want);
++ iter->cfs_runtime -= diff;
++ want -= diff;
++ } else {
++ iter->cfs_runtime -= want;
++ want -= want;
++ }
++
++ spin_unlock(&iter->cfs_runtime_lock);
++ if (!want)
++ break;
++ }
++
++ spin_lock(&cfs_rq->cfs_runtime_lock);
++ /*
++ * We cannot be left wanting - that would mean some
++ * runtime leaked out of the system.
++ */
++ BUG_ON(want);
++balanced:
++ /*
++ * Disable all the borrow logic by pretending we have infinite
++ * runtime - in which case borrowing doesn't make sense.
++ */
++ cfs_rq->cfs_runtime = RUNTIME_INF;
++ spin_unlock(&cfs_rq->cfs_runtime_lock);
++ spin_unlock(&cfs_b->cfs_runtime_lock);
++ }
++}
++
++static void enable_runtime_cfs(struct rq *rq)
++{
++ struct cfs_rq *cfs_rq;
++
++ if (unlikely(!scheduler_running))
++ return;
++
++ /*
++ * Reset each runqueue's bandwidth settings
++ */
++ for_each_leaf_cfs_rq(rq, cfs_rq) {
++ struct cfs_bandwidth *cfs_b = &cfs_rq->tg->cfs_bandwidth;
++
++ spin_lock(&cfs_b->cfs_runtime_lock);
++ spin_lock(&cfs_rq->cfs_runtime_lock);
++ cfs_rq->cfs_runtime = cfs_b->cfs_runtime;
++ cfs_rq->cfs_time = 0;
++ cfs_rq->cfs_throttled = 0;
++ spin_unlock(&cfs_rq->cfs_runtime_lock);
++ spin_unlock(&cfs_b->cfs_runtime_lock);
++ }
++}
++
++/*
++ * Ran out of runtime, check if we can borrow some from others
++ * instead of getting throttled right away.
++ */
++static void do_cfs_balance_runtime(struct cfs_rq *cfs_rq)
++{
++ struct cfs_bandwidth *cfs_b = &cfs_rq->tg->cfs_bandwidth;
++ const struct cpumask *span = sched_bw_period_mask();
++ int i, weight;
++ u64 cfs_period;
++
++ weight = cpumask_weight(span);
++ spin_lock(&cfs_b->cfs_runtime_lock);
++ cfs_period = ktime_to_ns(cfs_b->cfs_period);
++
++ for_each_cpu(i, span) {
++ struct cfs_rq *borrow_cfs_rq =
++ sched_cfs_period_cfs_rq(cfs_b, i);
++ s64 diff;
++
++ if (borrow_cfs_rq == cfs_rq)
++ continue;
++
++ cfs_rq_runtime_lock(borrow_cfs_rq);
++ if (borrow_cfs_rq->cfs_runtime == RUNTIME_INF) {
++ cfs_rq_runtime_unlock(borrow_cfs_rq);
++ continue;
++ }
++
++ diff = borrow_cfs_rq->cfs_runtime - borrow_cfs_rq->cfs_time;
++ if (diff > 0) {
++ diff = div_u64((u64)diff, weight);
++ if (cfs_rq->cfs_runtime + diff > cfs_period)
++ diff = cfs_period - cfs_rq->cfs_runtime;
++ borrow_cfs_rq->cfs_runtime -= diff;
++ cfs_rq->cfs_runtime += diff;
++ if (cfs_rq->cfs_runtime == cfs_period) {
++ cfs_rq_runtime_unlock(borrow_cfs_rq);
++ break;
++ }
++ }
++ cfs_rq_runtime_unlock(borrow_cfs_rq);
++ }
++ spin_unlock(&cfs_b->cfs_runtime_lock);
++}
++
++/*
++ * Called with rq->runtime_lock held.
++ */
++static void cfs_balance_runtime(struct cfs_rq *cfs_rq)
++{
++ cfs_rq_runtime_unlock(cfs_rq);
++ do_cfs_balance_runtime(cfs_rq);
++ cfs_rq_runtime_lock(cfs_rq);
++}
++
++#else /* !CONFIG_SMP */
++
++static void cfs_balance_runtime(struct cfs_rq *cfs_rq)
++{
++ return;
++}
++#endif /* CONFIG_SMP */
++
++/*
++ * Check if group entity exceeded its runtime. If so, mark the cfs_rq as
++ * throttled mark the current task for reschedling.
++ */
++static void sched_cfs_runtime_exceeded(struct sched_entity *se,
++ struct task_struct *tsk_curr, unsigned long delta_exec)
++{
++ struct cfs_rq *cfs_rq;
++
++ cfs_rq = group_cfs_rq(se);
++
++ if (cfs_rq->cfs_runtime == RUNTIME_INF)
++ return;
++
++ cfs_rq->cfs_time += delta_exec;
++
++ if (cfs_rq_throttled(cfs_rq))
++ return;
++
++ if (cfs_rq->cfs_time > cfs_rq->cfs_runtime)
++ cfs_balance_runtime(cfs_rq);
++
++ if (cfs_rq->cfs_time > cfs_rq->cfs_runtime) {
++ cfs_rq->cfs_throttled = 1;
++ update_stats_throttle_start(cfs_rq, se);
++ resched_task(tsk_curr);
++ }
++}
++
++static inline void update_curr_group(struct sched_entity *curr,
++ unsigned long delta_exec, struct task_struct *tsk_curr)
++{
++ sched_cfs_runtime_exceeded(curr, tsk_curr, delta_exec);
++}
++
++static void enqueue_entity_locked(struct cfs_rq *cfs_rq,
++ struct sched_entity *se, int wakeup);
++
++static void enqueue_throttled_entity(struct rq *rq, struct sched_entity *se)
++{
++ for_each_sched_entity(se) {
++ struct cfs_rq *gcfs_rq = group_cfs_rq(se);
++
++ if (se->on_rq || cfs_rq_throttled(gcfs_rq) ||
++ !gcfs_rq->nr_running)
++ break;
++ enqueue_entity_locked(cfs_rq_of(se), se, 0);
++ }
++}
++
++/*
++ * Refresh runtimes of all cfs_rqs in this group, i,e.,
++ * refresh runtimes of the representative cfs_rq of this
++ * tg on all cpus. Enqueue any throttled entity back.
++ */
++void do_sched_cfs_period_timer(struct cfs_bandwidth *cfs_b)
++{
++ int i;
++ const struct cpumask *span = sched_bw_period_mask();
++ unsigned long flags;
++
++ for_each_cpu(i, span) {
++ struct rq *rq = cpu_rq(i);
++ struct cfs_rq *cfs_rq = sched_cfs_period_cfs_rq(cfs_b, i);
++ struct sched_entity *se = cfs_rq->tg->se[i];
++
++ spin_lock_irqsave(&rq->lock, flags);
++ cfs_rq_runtime_lock(cfs_rq);
++ cfs_rq->cfs_time = 0;
++ if (cfs_rq_throttled(cfs_rq)) {
++ update_rq_clock(rq);
++ update_stats_throttle_end(cfs_rq, se);
++ cfs_rq->cfs_throttled = 0;
++ enqueue_throttled_entity(rq, se);
++ }
++ cfs_rq_runtime_unlock(cfs_rq);
++ spin_unlock_irqrestore(&rq->lock, flags);
++ }
++}
++
++#else
++
++static inline void update_curr_group(struct sched_entity *curr,
++ unsigned long delta_exec, struct task_struct *tsk_curr)
++{
++ return;
++}
++
++static inline int cfs_rq_throttled(struct cfs_rq *cfs_rq)
++{
++ return 0;
++}
++
++#endif /* CONFIG_CFS_HARD_LIMITS */
++
++#else /* CONFIG_FAIR_GROUP_SCHED */
++
++static inline void update_curr_group(struct sched_entity *curr,
++ unsigned long delta_exec, struct task_struct *tsk_curr)
++{
++ return;
++}
+
+ static inline struct task_struct *task_of(struct sched_entity *se)
+ {
+@@ -251,7 +552,6 @@ find_matching_se(struct sched_entity **s
+
+ #endif /* CONFIG_FAIR_GROUP_SCHED */
+
+-
+ /**************************************************************
+ * Scheduling class tree data structure manipulation methods:
+ */
+@@ -489,14 +789,25 @@ __update_curr(struct cfs_rq *cfs_rq, str
+ update_min_vruntime(cfs_rq);
+ }
+
+-static void update_curr(struct cfs_rq *cfs_rq)
++static void update_curr_task(struct sched_entity *curr,
++ unsigned long delta_exec)
++{
++ struct task_struct *curtask = task_of(curr);
++
++ trace_sched_stat_runtime(curtask, delta_exec, curr->vruntime);
++ cpuacct_charge(curtask, delta_exec);
++ account_group_exec_runtime(curtask, delta_exec);
++}
++
++static int update_curr_common(struct cfs_rq *cfs_rq, unsigned long *delta)
+ {
+ struct sched_entity *curr = cfs_rq->curr;
+- u64 now = rq_of(cfs_rq)->clock;
++ struct rq *rq = rq_of(cfs_rq);
++ u64 now = rq->clock;
+ unsigned long delta_exec;
+
+ if (unlikely(!curr))
+- return;
++ return 1;
+
+ /*
+ * Get the amount of time the current task was running
+@@ -505,20 +816,47 @@ static void update_curr(struct cfs_rq *c
+ */
+ delta_exec = (unsigned long)(now - curr->exec_start);
+ if (!delta_exec)
+- return;
++ return 1;
+
+ __update_curr(cfs_rq, curr, delta_exec);
+ curr->exec_start = now;
++ *delta = delta_exec;
++ return 0;
++}
+
+- if (entity_is_task(curr)) {
+- struct task_struct *curtask = task_of(curr);
++static void update_curr(struct cfs_rq *cfs_rq)
++{
++ struct sched_entity *curr = cfs_rq->curr;
++ struct rq *rq = rq_of(cfs_rq);
++ unsigned long delta_exec;
+
+- trace_sched_stat_runtime(curtask, delta_exec, curr->vruntime);
+- cpuacct_charge(curtask, delta_exec);
+- account_group_exec_runtime(curtask, delta_exec);
++ if (update_curr_common(cfs_rq, &delta_exec))
++ return ;
++
++ if (entity_is_task(curr))
++ update_curr_task(curr, delta_exec);
++ else {
++ cfs_rq_runtime_lock(group_cfs_rq(curr));
++ update_curr_group(curr, delta_exec, rq->curr);
++ cfs_rq_runtime_unlock(group_cfs_rq(curr));
+ }
+ }
+
++static void update_curr_locked(struct cfs_rq *cfs_rq)
++{
++ struct sched_entity *curr = cfs_rq->curr;
++ struct rq *rq = rq_of(cfs_rq);
++ unsigned long delta_exec;
++
++ if (update_curr_common(cfs_rq, &delta_exec))
++ return ;
++
++ if (entity_is_task(curr))
++ update_curr_task(curr, delta_exec);
++ else
++ update_curr_group(curr, delta_exec, rq->curr);
++}
++
+ static inline void
+ update_stats_wait_start(struct cfs_rq *cfs_rq, struct sched_entity *se)
+ {
+@@ -740,13 +1078,9 @@ place_entity(struct cfs_rq *cfs_rq, stru
+ se->vruntime = vruntime;
+ }
+
+-static void
+-enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int wakeup)
++static void enqueue_entity_common(struct cfs_rq *cfs_rq,
++ struct sched_entity *se, int wakeup)
+ {
+- /*
+- * Update run-time statistics of the 'current'.
+- */
+- update_curr(cfs_rq);
+ account_entity_enqueue(cfs_rq, se);
+
+ if (wakeup) {
+@@ -758,6 +1092,29 @@ enqueue_entity(struct cfs_rq *cfs_rq, st
+ check_spread(cfs_rq, se);
+ if (se != cfs_rq->curr)
+ __enqueue_entity(cfs_rq, se);
++
++ if (entity_is_task(se))
++ vx_activate_task(task_of(se));
++}
++
++static void enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
++ int wakeup)
++{
++ /*
++ * Update run-time statistics of the 'current'.
++ */
++ update_curr(cfs_rq);
++ enqueue_entity_common(cfs_rq, se, wakeup);
++}
++
++static void enqueue_entity_locked(struct cfs_rq *cfs_rq,
++ struct sched_entity *se, int wakeup)
++{
++ /*
++ * Update run-time statistics of the 'current'.
++ */
++ update_curr_locked(cfs_rq);
++ enqueue_entity_common(cfs_rq, se, wakeup);
+ }
+
+ static void __clear_buddies(struct cfs_rq *cfs_rq, struct sched_entity *se)
+@@ -801,6 +1158,8 @@ dequeue_entity(struct cfs_rq *cfs_rq, st
+
+ if (se != cfs_rq->curr)
+ __dequeue_entity(cfs_rq, se);
++ if (entity_is_task(se))
++ vx_deactivate_task(task_of(se));
+ account_entity_dequeue(cfs_rq, se);
+ update_min_vruntime(cfs_rq);
+ }
+@@ -897,6 +1256,32 @@ static struct sched_entity *pick_next_en
+ return se;
+ }
+
++/*
++ * Called from put_prev_entity()
++ * If a group entity (@se) is found to be throttled, it will not be put back
++ * on @cfs_rq, which is equivalent to dequeing it.
++ */
++static int dequeue_throttled_entity(struct cfs_rq *cfs_rq,
++ struct sched_entity *se)
++{
++ struct cfs_rq *gcfs_rq = group_cfs_rq(se);
++
++ if (entity_is_task(se))
++ return 0;
++
++ cfs_rq_runtime_lock(gcfs_rq);
++ if (!cfs_rq_throttled(gcfs_rq) && gcfs_rq->nr_running) {
++ cfs_rq_runtime_unlock(gcfs_rq);
++ return 0;
++ }
++
++ __clear_buddies(cfs_rq, se);
++ account_entity_dequeue(cfs_rq, se);
++ cfs_rq->curr = NULL;
++ cfs_rq_runtime_unlock(gcfs_rq);
++ return 1;
++}
++
+ static void put_prev_entity(struct cfs_rq *cfs_rq, struct sched_entity *prev)
+ {
+ /*
+@@ -908,6 +1293,8 @@ static void put_prev_entity(struct cfs_r
+
+ check_spread(cfs_rq, prev);
+ if (prev->on_rq) {
++ if (dequeue_throttled_entity(cfs_rq, prev))
++ return;
+ update_stats_wait_start(cfs_rq, prev);
+ /* Put 'current' back into the tree. */
+ __enqueue_entity(cfs_rq, prev);
+@@ -1004,10 +1391,28 @@ static inline void hrtick_update(struct
+ }
+ #endif
+
++static int enqueue_group_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
++ int wakeup)
++{
++ struct cfs_rq *gcfs_rq = group_cfs_rq(se);
++ int ret = 0;
++
++ cfs_rq_runtime_lock(gcfs_rq);
++ if (cfs_rq_throttled(gcfs_rq)) {
++ ret = 1;
++ goto out;
++ }
++ enqueue_entity_locked(cfs_rq, se, wakeup);
++out:
++ cfs_rq_runtime_unlock(gcfs_rq);
++ return ret;
++}
++
+ /*
+ * The enqueue_task method is called before nr_running is
+ * increased. Here we update the fair scheduling stats and
+ * then put the task into the rbtree:
++ * Don't enqueue a throttled entity further into the hierarchy.
+ */
+ static void enqueue_task_fair(struct rq *rq, struct task_struct *p, int wakeup)
+ {
+@@ -1017,11 +1422,15 @@ static void enqueue_task_fair(struct rq
+ for_each_sched_entity(se) {
+ if (se->on_rq)
+ break;
++
+ cfs_rq = cfs_rq_of(se);
+- enqueue_entity(cfs_rq, se, wakeup);
++ if (entity_is_task(se))
++ enqueue_entity(cfs_rq, se, wakeup);
++ else
++ if (enqueue_group_entity(cfs_rq, se, wakeup))
++ break;
+ wakeup = 1;
+ }
+-
+ hrtick_update(rq);
+ }
+
+@@ -1041,6 +1450,17 @@ static void dequeue_task_fair(struct rq
+ /* Don't dequeue parent if it has other entities besides us */
+ if (cfs_rq->load.weight)
+ break;
++
++ /*
++ * If this cfs_rq is throttled, then it is already
++ * dequeued.
++ */
++ cfs_rq_runtime_lock(cfs_rq);
++ if (cfs_rq_throttled(cfs_rq)) {
++ cfs_rq_runtime_unlock(cfs_rq);
++ break;
++ }
++ cfs_rq_runtime_unlock(cfs_rq);
+ sleep = 1;
+ }
+
+@@ -1788,9 +2208,10 @@ load_balance_fair(struct rq *this_rq, in
+ u64 rem_load, moved_load;
+
+ /*
+- * empty group
++ * empty group or throttled group
+ */
+- if (!busiest_cfs_rq->task_weight)
++ if (!busiest_cfs_rq->task_weight ||
++ cfs_rq_throttled(busiest_cfs_rq))
+ continue;
+
+ rem_load = (u64)rem_load_move * busiest_weight;
+@@ -1839,6 +2260,12 @@ move_one_task_fair(struct rq *this_rq, i
+
+ for_each_leaf_cfs_rq(busiest, busy_cfs_rq) {
+ /*
++ * Don't move task from a throttled cfs_rq
++ */
++ if (cfs_rq_throttled(busy_cfs_rq))
++ continue;
++
++ /*
+ * pass busy_cfs_rq argument into
+ * load_balance_[start|next]_fair iterators
+ */
+diff -NurpP --minimal linux-2.6.32.1/kernel/sched_rt.c linux-2.6.32.1-vs2.3.0.36.27/kernel/sched_rt.c
+--- linux-2.6.32.1/kernel/sched_rt.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/sched_rt.c 2009-12-03 20:04:56.000000000 +0100
+@@ -235,18 +235,6 @@ static int rt_se_boosted(struct sched_rt
+ return p->prio != p->normal_prio;
+ }
+
+-#ifdef CONFIG_SMP
+-static inline const struct cpumask *sched_rt_period_mask(void)
+-{
+- return cpu_rq(smp_processor_id())->rd->span;
+-}
+-#else
+-static inline const struct cpumask *sched_rt_period_mask(void)
+-{
+- return cpu_online_mask;
+-}
+-#endif
+-
+ static inline
+ struct rt_rq *sched_rt_period_rt_rq(struct rt_bandwidth *rt_b, int cpu)
+ {
+@@ -296,11 +284,6 @@ static inline int rt_rq_throttled(struct
+ return rt_rq->rt_throttled;
+ }
+
+-static inline const struct cpumask *sched_rt_period_mask(void)
+-{
+- return cpu_online_mask;
+-}
+-
+ static inline
+ struct rt_rq *sched_rt_period_rt_rq(struct rt_bandwidth *rt_b, int cpu)
+ {
+@@ -373,7 +356,7 @@ next:
+ /*
+ * Ensure this RQ takes back all the runtime it lend to its neighbours.
+ */
+-static void __disable_runtime(struct rq *rq)
++static void disable_runtime_rt(struct rq *rq)
+ {
+ struct root_domain *rd = rq->rd;
+ struct rt_rq *rt_rq;
+@@ -450,16 +433,7 @@ balanced:
+ }
+ }
+
+-static void disable_runtime(struct rq *rq)
+-{
+- unsigned long flags;
+-
+- spin_lock_irqsave(&rq->lock, flags);
+- __disable_runtime(rq);
+- spin_unlock_irqrestore(&rq->lock, flags);
+-}
+-
+-static void __enable_runtime(struct rq *rq)
++static void enable_runtime_rt(struct rq *rq)
+ {
+ struct rt_rq *rt_rq;
+
+@@ -482,15 +456,6 @@ static void __enable_runtime(struct rq *
+ }
+ }
+
+-static void enable_runtime(struct rq *rq)
+-{
+- unsigned long flags;
+-
+- spin_lock_irqsave(&rq->lock, flags);
+- __enable_runtime(rq);
+- spin_unlock_irqrestore(&rq->lock, flags);
+-}
+-
+ static int balance_runtime(struct rt_rq *rt_rq)
+ {
+ int more = 0;
+@@ -518,7 +483,7 @@ static int do_sched_rt_period_timer(stru
+ if (!rt_bandwidth_enabled() || rt_b->rt_runtime == RUNTIME_INF)
+ return 1;
+
+- span = sched_rt_period_mask();
++ span = sched_bw_period_mask();
+ for_each_cpu(i, span) {
+ int enqueue = 0;
+ struct rt_rq *rt_rq = sched_rt_period_rt_rq(rt_b, i);
+@@ -1564,7 +1529,7 @@ static void rq_online_rt(struct rq *rq)
+ if (rq->rt.overloaded)
+ rt_set_overload(rq);
+
+- __enable_runtime(rq);
++ enable_runtime_rt(rq);
+
+ cpupri_set(&rq->rd->cpupri, rq->cpu, rq->rt.highest_prio.curr);
+ }
+@@ -1575,7 +1540,7 @@ static void rq_offline_rt(struct rq *rq)
+ if (rq->rt.overloaded)
+ rt_clear_overload(rq);
+
+- __disable_runtime(rq);
++ disable_runtime_rt(rq);
+
+ cpupri_set(&rq->rd->cpupri, rq->cpu, CPUPRI_INVALID);
+ }
+diff -NurpP --minimal linux-2.6.32.1/kernel/signal.c linux-2.6.32.1-vs2.3.0.36.27/kernel/signal.c
+--- linux-2.6.32.1/kernel/signal.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/signal.c 2009-12-03 20:04:56.000000000 +0100
+@@ -27,6 +27,8 @@
+ #include <linux/freezer.h>
+ #include <linux/pid_namespace.h>
+ #include <linux/nsproxy.h>
++#include <linux/vs_context.h>
++#include <linux/vs_pid.h>
+ #include <trace/events/sched.h>
+
+ #include <asm/param.h>
+@@ -598,6 +600,14 @@ static int check_kill_permission(int sig
+ if (!valid_signal(sig))
+ return -EINVAL;
+
++ if ((info != SEND_SIG_NOINFO) &&
++ (is_si_special(info) || !SI_FROMUSER(info)))
++ goto skip;
++
++ vxdprintk(VXD_CBIT(misc, 7),
++ "check_kill_permission(%d,%p,%p[#%u,%u])",
++ sig, info, t, vx_task_xid(t), t->pid);
++
+ if (info != SEND_SIG_NOINFO && (is_si_special(info) || SI_FROMKERNEL(info)))
+ return 0;
+
+@@ -625,6 +635,20 @@ static int check_kill_permission(int sig
+ }
+ }
+
++ error = -EPERM;
++ if (t->pid == 1 && current->xid)
++ return error;
++
++ error = -ESRCH;
++ /* FIXME: we shouldn't return ESRCH ever, to avoid
++ loops, maybe ENOENT or EACCES? */
++ if (!vx_check(vx_task_xid(t), VS_WATCH_P | VS_IDENT)) {
++ vxdprintk(current->xid || VXD_CBIT(misc, 7),
++ "signal %d[%p] xid mismatch %p[#%u,%u] xid=#%u",
++ sig, info, t, vx_task_xid(t), t->pid, current->xid);
++ return error;
++ }
++skip:
+ return security_task_kill(t, info, sig, 0);
+ }
+
+@@ -1112,7 +1136,7 @@ int kill_pid_info(int sig, struct siginf
+ rcu_read_lock();
+ retry:
+ p = pid_task(pid, PIDTYPE_PID);
+- if (p) {
++ if (p && vx_check(vx_task_xid(p), VS_IDENT)) {
+ error = group_send_sig_info(sig, info, p);
+ if (unlikely(error == -ESRCH))
+ /*
+@@ -1151,7 +1175,7 @@ int kill_pid_info_as_uid(int sig, struct
+
+ read_lock(&tasklist_lock);
+ p = pid_task(pid, PIDTYPE_PID);
+- if (!p) {
++ if (!p || !vx_check(vx_task_xid(p), VS_IDENT)) {
+ ret = -ESRCH;
+ goto out_unlock;
+ }
+@@ -1205,8 +1229,10 @@ static int kill_something_info(int sig,
+ struct task_struct * p;
+
+ for_each_process(p) {
+- if (task_pid_vnr(p) > 1 &&
+- !same_thread_group(p, current)) {
++ if (vx_check(vx_task_xid(p), VS_ADMIN|VS_IDENT) &&
++ task_pid_vnr(p) > 1 &&
++ !same_thread_group(p, current) &&
++ !vx_current_initpid(p->pid)) {
+ int err = group_send_sig_info(sig, info, p);
+ ++count;
+ if (err != -EPERM)
+@@ -1871,6 +1897,11 @@ relock:
+ !sig_kernel_only(signr))
+ continue;
+
++ /* virtual init is protected against user signals */
++ if ((info->si_code == SI_USER) &&
++ vx_current_initpid(current->pid))
++ continue;
++
+ if (sig_kernel_stop(signr)) {
+ /*
+ * The default action is to stop all threads in
+diff -NurpP --minimal linux-2.6.32.1/kernel/softirq.c linux-2.6.32.1-vs2.3.0.36.27/kernel/softirq.c
+--- linux-2.6.32.1/kernel/softirq.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/softirq.c 2009-12-03 20:04:56.000000000 +0100
+@@ -24,6 +24,7 @@
+ #include <linux/ftrace.h>
+ #include <linux/smp.h>
+ #include <linux/tick.h>
++#include <linux/vs_context.h>
+
+ #define CREATE_TRACE_POINTS
+ #include <trace/events/irq.h>
+diff -NurpP --minimal linux-2.6.32.1/kernel/sys.c linux-2.6.32.1-vs2.3.0.36.27/kernel/sys.c
+--- linux-2.6.32.1/kernel/sys.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/sys.c 2009-12-03 20:04:56.000000000 +0100
+@@ -41,6 +41,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/kprobes.h>
+ #include <linux/user_namespace.h>
++#include <linux/vs_pid.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/io.h>
+@@ -130,7 +131,10 @@ static int set_one_prio(struct task_stru
+ goto out;
+ }
+ if (niceval < task_nice(p) && !can_nice(p, niceval)) {
+- error = -EACCES;
++ if (vx_flags(VXF_IGNEG_NICE, 0))
++ error = 0;
++ else
++ error = -EACCES;
+ goto out;
+ }
+ no_nice = security_task_setnice(p, niceval);
+@@ -179,6 +183,8 @@ SYSCALL_DEFINE3(setpriority, int, which,
+ else
+ pgrp = task_pgrp(current);
+ do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
++ if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
++ continue;
+ error = set_one_prio(p, niceval, error);
+ } while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
+ break;
+@@ -240,6 +246,8 @@ SYSCALL_DEFINE2(getpriority, int, which,
+ else
+ pgrp = task_pgrp(current);
+ do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
++ if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
++ continue;
+ niceval = 20 - task_nice(p);
+ if (niceval > retval)
+ retval = niceval;
+@@ -349,6 +357,9 @@ void kernel_power_off(void)
+ machine_power_off();
+ }
+ EXPORT_SYMBOL_GPL(kernel_power_off);
++
++long vs_reboot(unsigned int, void __user *);
++
+ /*
+ * Reboot system call: for obvious reasons only root may call it,
+ * and even root needs to set up some magic numbers in the registers
+@@ -381,6 +392,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int
+ if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
+ cmd = LINUX_REBOOT_CMD_HALT;
+
++ if (!vx_check(0, VS_ADMIN|VS_WATCH))
++ return vs_reboot(cmd, arg);
++
+ lock_kernel();
+ switch (cmd) {
+ case LINUX_REBOOT_CMD_RESTART:
+@@ -1133,7 +1147,7 @@ SYSCALL_DEFINE2(sethostname, char __user
+ int errno;
+ char tmp[__NEW_UTS_LEN];
+
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SET_UTSNAME))
+ return -EPERM;
+ if (len < 0 || len > __NEW_UTS_LEN)
+ return -EINVAL;
+@@ -1182,7 +1196,7 @@ SYSCALL_DEFINE2(setdomainname, char __us
+ int errno;
+ char tmp[__NEW_UTS_LEN];
+
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SET_UTSNAME))
+ return -EPERM;
+ if (len < 0 || len > __NEW_UTS_LEN)
+ return -EINVAL;
+@@ -1251,7 +1265,7 @@ SYSCALL_DEFINE2(setrlimit, unsigned int,
+ return -EINVAL;
+ old_rlim = current->signal->rlim + resource;
+ if ((new_rlim.rlim_max > old_rlim->rlim_max) &&
+- !capable(CAP_SYS_RESOURCE))
++ !vx_capable(CAP_SYS_RESOURCE, VXC_SET_RLIMIT))
+ return -EPERM;
+ if (resource == RLIMIT_NOFILE && new_rlim.rlim_max > sysctl_nr_open)
+ return -EPERM;
+diff -NurpP --minimal linux-2.6.32.1/kernel/sysctl.c linux-2.6.32.1-vs2.3.0.36.27/kernel/sysctl.c
+--- linux-2.6.32.1/kernel/sysctl.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/sysctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -124,6 +124,7 @@ static int ngroups_max = NGROUPS_MAX;
+ extern char modprobe_path[];
+ extern int modules_disabled;
+ #endif
++extern char vshelper_path[];
+ #ifdef CONFIG_CHR_DEV_SG
+ extern int sg_big_buff;
+ #endif
+@@ -593,6 +594,15 @@ static struct ctl_table kern_table[] = {
+ .strategy = &sysctl_string,
+ },
+ #endif
++ {
++ .ctl_name = KERN_VSHELPER,
++ .procname = "vshelper",
++ .data = &vshelper_path,
++ .maxlen = 256,
++ .mode = 0644,
++ .proc_handler = &proc_dostring,
++ .strategy = &sysctl_string,
++ },
+ #ifdef CONFIG_CHR_DEV_SG
+ {
+ .ctl_name = KERN_SG_BIG_BUFF,
+diff -NurpP --minimal linux-2.6.32.1/kernel/sysctl_check.c linux-2.6.32.1-vs2.3.0.36.27/kernel/sysctl_check.c
+--- linux-2.6.32.1/kernel/sysctl_check.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/sysctl_check.c 2009-12-03 20:04:56.000000000 +0100
+@@ -39,6 +39,7 @@ static const struct trans_ctl_table tran
+
+ { KERN_PANIC, "panic" },
+ { KERN_REALROOTDEV, "real-root-dev" },
++ { KERN_VSHELPER, "vshelper", },
+
+ { KERN_SPARC_REBOOT, "reboot-cmd" },
+ { KERN_CTLALTDEL, "ctrl-alt-del" },
+@@ -1217,6 +1218,22 @@ static const struct trans_ctl_table tran
+ {}
+ };
+
++static struct trans_ctl_table trans_vserver_table[] = {
++ { 1, "debug_switch" },
++ { 2, "debug_xid" },
++ { 3, "debug_nid" },
++ { 4, "debug_tag" },
++ { 5, "debug_net" },
++ { 6, "debug_limit" },
++ { 7, "debug_cres" },
++ { 8, "debug_dlim" },
++ { 9, "debug_quota" },
++ { 10, "debug_cvirt" },
++ { 11, "debug_space" },
++ { 12, "debug_misc" },
++ {}
++};
++
+ static const struct trans_ctl_table trans_root_table[] = {
+ { CTL_KERN, "kernel", trans_kern_table },
+ { CTL_VM, "vm", trans_vm_table },
+@@ -1233,6 +1250,7 @@ static const struct trans_ctl_table tran
+ { CTL_SUNRPC, "sunrpc", trans_sunrpc_table },
+ { CTL_PM, "pm", trans_pm_table },
+ { CTL_FRV, "frv", trans_frv_table },
++ { CTL_VSERVER, "vserver", trans_vserver_table },
+ {}
+ };
+
+diff -NurpP --minimal linux-2.6.32.1/kernel/time.c linux-2.6.32.1-vs2.3.0.36.27/kernel/time.c
+--- linux-2.6.32.1/kernel/time.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/time.c 2009-12-03 20:04:56.000000000 +0100
+@@ -63,6 +63,7 @@ EXPORT_SYMBOL(sys_tz);
+ SYSCALL_DEFINE1(time, time_t __user *, tloc)
+ {
+ time_t i = get_seconds();
++/* FIXME: do_gettimeofday(&tv) -> vx_gettimeofday(&tv) */
+
+ if (tloc) {
+ if (put_user(i,tloc))
+@@ -93,7 +94,7 @@ SYSCALL_DEFINE1(stime, time_t __user *,
+ if (err)
+ return err;
+
+- do_settimeofday(&tv);
++ vx_settimeofday(&tv);
+ return 0;
+ }
+
+@@ -104,7 +105,7 @@ SYSCALL_DEFINE2(gettimeofday, struct tim
+ {
+ if (likely(tv != NULL)) {
+ struct timeval ktv;
+- do_gettimeofday(&ktv);
++ vx_gettimeofday(&ktv);
+ if (copy_to_user(tv, &ktv, sizeof(ktv)))
+ return -EFAULT;
+ }
+@@ -179,7 +180,7 @@ int do_sys_settimeofday(struct timespec
+ /* SMP safe, again the code in arch/foo/time.c should
+ * globally block out interrupts when it runs.
+ */
+- return do_settimeofday(tv);
++ return vx_settimeofday(tv);
+ }
+ return 0;
+ }
+@@ -311,7 +312,7 @@ void getnstimeofday(struct timespec *tv)
+ {
+ struct timeval x;
+
+- do_gettimeofday(&x);
++ vx_gettimeofday(&x);
+ tv->tv_sec = x.tv_sec;
+ tv->tv_nsec = x.tv_usec * NSEC_PER_USEC;
+ }
+diff -NurpP --minimal linux-2.6.32.1/kernel/timer.c linux-2.6.32.1-vs2.3.0.36.27/kernel/timer.c
+--- linux-2.6.32.1/kernel/timer.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/timer.c 2009-12-03 20:04:56.000000000 +0100
+@@ -39,6 +39,10 @@
+ #include <linux/kallsyms.h>
+ #include <linux/perf_event.h>
+ #include <linux/sched.h>
++#include <linux/vs_base.h>
++#include <linux/vs_cvirt.h>
++#include <linux/vs_pid.h>
++#include <linux/vserver/sched.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+@@ -1255,12 +1259,6 @@ SYSCALL_DEFINE1(alarm, unsigned int, sec
+
+ #endif
+
+-#ifndef __alpha__
+-
+-/*
+- * The Alpha uses getxpid, getxuid, and getxgid instead. Maybe this
+- * should be moved into arch/i386 instead?
+- */
+
+ /**
+ * sys_getpid - return the thread group id of the current process
+@@ -1289,10 +1287,23 @@ SYSCALL_DEFINE0(getppid)
+ rcu_read_lock();
+ pid = task_tgid_vnr(current->real_parent);
+ rcu_read_unlock();
++ return vx_map_pid(pid);
++}
+
+- return pid;
++#ifdef __alpha__
++
++/*
++ * The Alpha uses getxpid, getxuid, and getxgid instead.
++ */
++
++asmlinkage long do_getxpid(long *ppid)
++{
++ *ppid = sys_getppid();
++ return sys_getpid();
+ }
+
++#else /* _alpha_ */
++
+ SYSCALL_DEFINE0(getuid)
+ {
+ /* Only we change this so SMP safe */
+diff -NurpP --minimal linux-2.6.32.1/kernel/user.c linux-2.6.32.1-vs2.3.0.36.27/kernel/user.c
+--- linux-2.6.32.1/kernel/user.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/user.c 2009-12-03 20:04:56.000000000 +0100
+@@ -251,10 +251,10 @@ static struct kobj_type uids_ktype = {
+ *
+ * See Documentation/scheduler/sched-design-CFS.txt for ramifications.
+ */
+-static int uids_user_create(struct user_struct *up)
++static int uids_user_create(struct user_namespace *ns, struct user_struct *up)
+ {
+ struct kobject *kobj = &up->kobj;
+- int error;
++ int error = 0;
+
+ memset(kobj, 0, sizeof(struct kobject));
+ if (up->user_ns != &init_user_ns)
+@@ -282,7 +282,7 @@ int __init uids_sysfs_init(void)
+ if (!uids_kset)
+ return -ENOMEM;
+
+- return uids_user_create(&root_user);
++ return uids_user_create(NULL, &root_user);
+ }
+
+ /* delayed work function to remove sysfs directory for a user and free up
+@@ -353,7 +353,8 @@ static struct user_struct *uid_hash_find
+ }
+
+ int uids_sysfs_init(void) { return 0; }
+-static inline int uids_user_create(struct user_struct *up) { return 0; }
++static inline int uids_user_create(struct user_namespace *ns,
++ struct user_struct *up) { return 0; }
+ static inline void uids_mutex_lock(void) { }
+ static inline void uids_mutex_unlock(void) { }
+
+@@ -450,7 +451,7 @@ struct user_struct *alloc_uid(struct use
+
+ new->user_ns = get_user_ns(ns);
+
+- if (uids_user_create(new))
++ if (uids_user_create(ns, new))
+ goto out_destoy_sched;
+
+ /*
+diff -NurpP --minimal linux-2.6.32.1/kernel/user_namespace.c linux-2.6.32.1-vs2.3.0.36.27/kernel/user_namespace.c
+--- linux-2.6.32.1/kernel/user_namespace.c 2009-03-24 14:22:45.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/user_namespace.c 2009-12-03 20:04:56.000000000 +0100
+@@ -10,6 +10,7 @@
+ #include <linux/slab.h>
+ #include <linux/user_namespace.h>
+ #include <linux/cred.h>
++#include <linux/vserver/global.h>
+
+ /*
+ * Create a new user namespace, deriving the creator from the user in the
+@@ -30,6 +31,7 @@ int create_user_ns(struct cred *new)
+ return -ENOMEM;
+
+ kref_init(&ns->kref);
++ atomic_inc(&vs_global_user_ns);
+
+ for (n = 0; n < UIDHASH_SZ; ++n)
+ INIT_HLIST_HEAD(ns->uidhash_table + n);
+@@ -78,6 +80,8 @@ void free_user_ns(struct kref *kref)
+ struct user_namespace *ns =
+ container_of(kref, struct user_namespace, kref);
+
++ /* FIXME: maybe move into destroyer? */
++ atomic_dec(&vs_global_user_ns);
+ INIT_WORK(&ns->destroyer, free_user_ns_work);
+ schedule_work(&ns->destroyer);
+ }
+diff -NurpP --minimal linux-2.6.32.1/kernel/utsname.c linux-2.6.32.1-vs2.3.0.36.27/kernel/utsname.c
+--- linux-2.6.32.1/kernel/utsname.c 2009-09-10 15:26:28.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/utsname.c 2009-12-03 20:04:56.000000000 +0100
+@@ -14,14 +14,17 @@
+ #include <linux/utsname.h>
+ #include <linux/err.h>
+ #include <linux/slab.h>
++#include <linux/vserver/global.h>
+
+ static struct uts_namespace *create_uts_ns(void)
+ {
+ struct uts_namespace *uts_ns;
+
+ uts_ns = kmalloc(sizeof(struct uts_namespace), GFP_KERNEL);
+- if (uts_ns)
++ if (uts_ns) {
+ kref_init(&uts_ns->kref);
++ atomic_inc(&vs_global_uts_ns);
++ }
+ return uts_ns;
+ }
+
+@@ -71,5 +74,6 @@ void free_uts_ns(struct kref *kref)
+ struct uts_namespace *ns;
+
+ ns = container_of(kref, struct uts_namespace, kref);
++ atomic_dec(&vs_global_uts_ns);
+ kfree(ns);
+ }
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/cacct.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cacct.c
+--- linux-2.6.32.1/kernel/vserver/cacct.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cacct.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,42 @@
++/*
++ * linux/kernel/vserver/cacct.c
++ *
++ * Virtual Server: Context Accounting
++ *
++ * Copyright (C) 2006-2007 Herbert Pötzl
++ *
++ * V0.01 added accounting stats
++ *
++ */
++
++#include <linux/types.h>
++#include <linux/vs_context.h>
++#include <linux/vserver/cacct_cmd.h>
++#include <linux/vserver/cacct_int.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++int vc_sock_stat(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_sock_stat_v0 vc_data;
++ int j, field;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ field = vc_data.field;
++ if ((field < 0) || (field >= VXA_SOCK_SIZE))
++ return -EINVAL;
++
++ for (j = 0; j < 3; j++) {
++ vc_data.count[j] = vx_sock_count(&vxi->cacct, field, j);
++ vc_data.total[j] = vx_sock_total(&vxi->cacct, field, j);
++ }
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/cacct_init.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cacct_init.h
+--- linux-2.6.32.1/kernel/vserver/cacct_init.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cacct_init.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,25 @@
++
++
++static inline void vx_info_init_cacct(struct _vx_cacct *cacct)
++{
++ int i, j;
++
++
++ for (i = 0; i < VXA_SOCK_SIZE; i++) {
++ for (j = 0; j < 3; j++) {
++ atomic_long_set(&cacct->sock[i][j].count, 0);
++ atomic_long_set(&cacct->sock[i][j].total, 0);
++ }
++ }
++ for (i = 0; i < 8; i++)
++ atomic_set(&cacct->slab[i], 0);
++ for (i = 0; i < 5; i++)
++ for (j = 0; j < 4; j++)
++ atomic_set(&cacct->page[i][j], 0);
++}
++
++static inline void vx_info_exit_cacct(struct _vx_cacct *cacct)
++{
++ return;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/cacct_proc.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cacct_proc.h
+--- linux-2.6.32.1/kernel/vserver/cacct_proc.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cacct_proc.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,53 @@
++#ifndef _VX_CACCT_PROC_H
++#define _VX_CACCT_PROC_H
++
++#include <linux/vserver/cacct_int.h>
++
++
++#define VX_SOCKA_TOP \
++ "Type\t recv #/bytes\t\t send #/bytes\t\t fail #/bytes\n"
++
++static inline int vx_info_proc_cacct(struct _vx_cacct *cacct, char *buffer)
++{
++ int i, j, length = 0;
++ static char *type[VXA_SOCK_SIZE] = {
++ "UNSPEC", "UNIX", "INET", "INET6", "PACKET", "OTHER"
++ };
++
++ length += sprintf(buffer + length, VX_SOCKA_TOP);
++ for (i = 0; i < VXA_SOCK_SIZE; i++) {
++ length += sprintf(buffer + length, "%s:", type[i]);
++ for (j = 0; j < 3; j++) {
++ length += sprintf(buffer + length,
++ "\t%10lu/%-10lu",
++ vx_sock_count(cacct, i, j),
++ vx_sock_total(cacct, i, j));
++ }
++ buffer[length++] = '\n';
++ }
++
++ length += sprintf(buffer + length, "\n");
++ length += sprintf(buffer + length,
++ "slab:\t %8u %8u %8u %8u\n",
++ atomic_read(&cacct->slab[1]),
++ atomic_read(&cacct->slab[4]),
++ atomic_read(&cacct->slab[0]),
++ atomic_read(&cacct->slab[2]));
++
++ length += sprintf(buffer + length, "\n");
++ for (i = 0; i < 5; i++) {
++ length += sprintf(buffer + length,
++ "page[%d]: %8u %8u %8u %8u\t %8u %8u %8u %8u\n", i,
++ atomic_read(&cacct->page[i][0]),
++ atomic_read(&cacct->page[i][1]),
++ atomic_read(&cacct->page[i][2]),
++ atomic_read(&cacct->page[i][3]),
++ atomic_read(&cacct->page[i][4]),
++ atomic_read(&cacct->page[i][5]),
++ atomic_read(&cacct->page[i][6]),
++ atomic_read(&cacct->page[i][7]));
++ }
++ return length;
++}
++
++#endif /* _VX_CACCT_PROC_H */
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/context.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/context.c
+--- linux-2.6.32.1/kernel/vserver/context.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/context.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,1057 @@
++/*
++ * linux/kernel/vserver/context.c
++ *
++ * Virtual Server: Context Support
++ *
++ * Copyright (C) 2003-2007 Herbert Pötzl
++ *
++ * V0.01 context helper
++ * V0.02 vx_ctx_kill syscall command
++ * V0.03 replaced context_info calls
++ * V0.04 redesign of struct (de)alloc
++ * V0.05 rlimit basic implementation
++ * V0.06 task_xid and info commands
++ * V0.07 context flags and caps
++ * V0.08 switch to RCU based hash
++ * V0.09 revert to non RCU for now
++ * V0.10 and back to working RCU hash
++ * V0.11 and back to locking again
++ * V0.12 referenced context store
++ * V0.13 separate per cpu data
++ * V0.14 changed vcmds to vxi arg
++ * V0.15 added context stat
++ * V0.16 have __create claim() the vxi
++ * V0.17 removed older and legacy stuff
++ *
++ */
++
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/security.h>
++#include <linux/pid_namespace.h>
++
++#include <linux/vserver/context.h>
++#include <linux/vserver/network.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/limit.h>
++#include <linux/vserver/limit_int.h>
++#include <linux/vserver/space.h>
++#include <linux/init_task.h>
++#include <linux/fs_struct.h>
++
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_pid.h>
++#include <linux/vserver/context_cmd.h>
++
++#include "cvirt_init.h"
++#include "cacct_init.h"
++#include "limit_init.h"
++#include "sched_init.h"
++
++
++atomic_t vx_global_ctotal = ATOMIC_INIT(0);
++atomic_t vx_global_cactive = ATOMIC_INIT(0);
++
++
++/* now inactive context structures */
++
++static struct hlist_head vx_info_inactive = HLIST_HEAD_INIT;
++
++static spinlock_t vx_info_inactive_lock = SPIN_LOCK_UNLOCKED;
++
++
++/* __alloc_vx_info()
++
++ * allocate an initialized vx_info struct
++ * doesn't make it visible (hash) */
++
++static struct vx_info *__alloc_vx_info(xid_t xid)
++{
++ struct vx_info *new = NULL;
++ int cpu, index;
++
++ vxdprintk(VXD_CBIT(xid, 0), "alloc_vx_info(%d)*", xid);
++
++ /* would this benefit from a slab cache? */
++ new = kmalloc(sizeof(struct vx_info), GFP_KERNEL);
++ if (!new)
++ return 0;
++
++ memset(new, 0, sizeof(struct vx_info));
++#ifdef CONFIG_SMP
++ new->ptr_pc = alloc_percpu(struct _vx_info_pc);
++ if (!new->ptr_pc)
++ goto error;
++#endif
++ new->vx_id = xid;
++ INIT_HLIST_NODE(&new->vx_hlist);
++ atomic_set(&new->vx_usecnt, 0);
++ atomic_set(&new->vx_tasks, 0);
++ new->vx_parent = NULL;
++ new->vx_state = 0;
++ init_waitqueue_head(&new->vx_wait);
++
++ /* prepare reaper */
++ get_task_struct(init_pid_ns.child_reaper);
++ new->vx_reaper = init_pid_ns.child_reaper;
++ new->vx_badness_bias = 0;
++
++ /* rest of init goes here */
++ vx_info_init_limit(&new->limit);
++ vx_info_init_sched(&new->sched);
++ vx_info_init_cvirt(&new->cvirt);
++ vx_info_init_cacct(&new->cacct);
++
++ /* per cpu data structures */
++ for_each_possible_cpu(cpu) {
++ vx_info_init_sched_pc(
++ &vx_per_cpu(new, sched_pc, cpu), cpu);
++ vx_info_init_cvirt_pc(
++ &vx_per_cpu(new, cvirt_pc, cpu), cpu);
++ }
++
++ new->vx_flags = VXF_INIT_SET;
++ cap_set_init_eff(new->vx_bcaps);
++ new->vx_ccaps = 0;
++ new->vx_umask = 0;
++
++ new->reboot_cmd = 0;
++ new->exit_code = 0;
++
++ // preconfig fs entries
++ for (index = 0; index < VX_SPACES; index++) {
++ write_lock(&init_fs.lock);
++ init_fs.users++;
++ write_unlock(&init_fs.lock);
++ new->vx_fs[index] = &init_fs;
++ }
++
++ vxdprintk(VXD_CBIT(xid, 0),
++ "alloc_vx_info(%d) = %p", xid, new);
++ vxh_alloc_vx_info(new);
++ atomic_inc(&vx_global_ctotal);
++ return new;
++#ifdef CONFIG_SMP
++error:
++ kfree(new);
++ return 0;
++#endif
++}
++
++/* __dealloc_vx_info()
++
++ * final disposal of vx_info */
++
++static void __dealloc_vx_info(struct vx_info *vxi)
++{
++ struct vx_info_save vxis;
++ int cpu;
++
++ vxdprintk(VXD_CBIT(xid, 0),
++ "dealloc_vx_info(%p)", vxi);
++ vxh_dealloc_vx_info(vxi);
++
++#ifdef CONFIG_VSERVER_WARN
++ enter_vx_info(vxi, &vxis);
++ vx_info_exit_limit(&vxi->limit);
++ vx_info_exit_sched(&vxi->sched);
++ vx_info_exit_cvirt(&vxi->cvirt);
++ vx_info_exit_cacct(&vxi->cacct);
++
++ for_each_possible_cpu(cpu) {
++ vx_info_exit_sched_pc(
++ &vx_per_cpu(vxi, sched_pc, cpu), cpu);
++ vx_info_exit_cvirt_pc(
++ &vx_per_cpu(vxi, cvirt_pc, cpu), cpu);
++ }
++ leave_vx_info(&vxis);
++#endif
++
++ vxi->vx_id = -1;
++ vxi->vx_state |= VXS_RELEASED;
++
++#ifdef CONFIG_SMP
++ free_percpu(vxi->ptr_pc);
++#endif
++ kfree(vxi);
++ atomic_dec(&vx_global_ctotal);
++}
++
++static void __shutdown_vx_info(struct vx_info *vxi)
++{
++ struct nsproxy *nsproxy;
++ struct fs_struct *fs;
++ int index, kill;
++
++ might_sleep();
++
++ vxi->vx_state |= VXS_SHUTDOWN;
++ vs_state_change(vxi, VSC_SHUTDOWN);
++
++ for (index = 0; index < VX_SPACES; index++) {
++ nsproxy = xchg(&vxi->vx_nsproxy[index], NULL);
++ if (nsproxy)
++ put_nsproxy(nsproxy);
++
++ fs = xchg(&vxi->vx_fs[index], NULL);
++ write_lock(&fs->lock);
++ kill = !--fs->users;
++ write_unlock(&fs->lock);
++ if (kill)
++ free_fs_struct(fs);
++ }
++}
++
++/* exported stuff */
++
++void free_vx_info(struct vx_info *vxi)
++{
++ unsigned long flags;
++ unsigned index;
++
++ /* check for reference counts first */
++ BUG_ON(atomic_read(&vxi->vx_usecnt));
++ BUG_ON(atomic_read(&vxi->vx_tasks));
++
++ /* context must not be hashed */
++ BUG_ON(vx_info_state(vxi, VXS_HASHED));
++
++ /* context shutdown is mandatory */
++ BUG_ON(!vx_info_state(vxi, VXS_SHUTDOWN));
++
++ /* nsproxy and fs check */
++ for (index = 0; index < VX_SPACES; index++) {
++ BUG_ON(vxi->vx_nsproxy[index]);
++ BUG_ON(vxi->vx_fs[index]);
++ }
++
++ spin_lock_irqsave(&vx_info_inactive_lock, flags);
++ hlist_del(&vxi->vx_hlist);
++ spin_unlock_irqrestore(&vx_info_inactive_lock, flags);
++
++ __dealloc_vx_info(vxi);
++}
++
++
++/* hash table for vx_info hash */
++
++#define VX_HASH_SIZE 13
++
++static struct hlist_head vx_info_hash[VX_HASH_SIZE] =
++ { [0 ... VX_HASH_SIZE-1] = HLIST_HEAD_INIT };
++
++static spinlock_t vx_info_hash_lock = SPIN_LOCK_UNLOCKED;
++
++
++static inline unsigned int __hashval(xid_t xid)
++{
++ return (xid % VX_HASH_SIZE);
++}
++
++
++
++/* __hash_vx_info()
++
++ * add the vxi to the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __hash_vx_info(struct vx_info *vxi)
++{
++ struct hlist_head *head;
++
++ vxd_assert_lock(&vx_info_hash_lock);
++ vxdprintk(VXD_CBIT(xid, 4),
++ "__hash_vx_info: %p[#%d]", vxi, vxi->vx_id);
++ vxh_hash_vx_info(vxi);
++
++ /* context must not be hashed */
++ BUG_ON(vx_info_state(vxi, VXS_HASHED));
++
++ vxi->vx_state |= VXS_HASHED;
++ head = &vx_info_hash[__hashval(vxi->vx_id)];
++ hlist_add_head(&vxi->vx_hlist, head);
++ atomic_inc(&vx_global_cactive);
++}
++
++/* __unhash_vx_info()
++
++ * remove the vxi from the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __unhash_vx_info(struct vx_info *vxi)
++{
++ unsigned long flags;
++
++ vxd_assert_lock(&vx_info_hash_lock);
++ vxdprintk(VXD_CBIT(xid, 4),
++ "__unhash_vx_info: %p[#%d.%d.%d]", vxi, vxi->vx_id,
++ atomic_read(&vxi->vx_usecnt), atomic_read(&vxi->vx_tasks));
++ vxh_unhash_vx_info(vxi);
++
++ /* context must be hashed */
++ BUG_ON(!vx_info_state(vxi, VXS_HASHED));
++ /* but without tasks */
++ BUG_ON(atomic_read(&vxi->vx_tasks));
++
++ vxi->vx_state &= ~VXS_HASHED;
++ hlist_del_init(&vxi->vx_hlist);
++ spin_lock_irqsave(&vx_info_inactive_lock, flags);
++ hlist_add_head(&vxi->vx_hlist, &vx_info_inactive);
++ spin_unlock_irqrestore(&vx_info_inactive_lock, flags);
++ atomic_dec(&vx_global_cactive);
++}
++
++
++/* __lookup_vx_info()
++
++ * requires the hash_lock to be held
++ * doesn't increment the vx_refcnt */
++
++static inline struct vx_info *__lookup_vx_info(xid_t xid)
++{
++ struct hlist_head *head = &vx_info_hash[__hashval(xid)];
++ struct hlist_node *pos;
++ struct vx_info *vxi;
++
++ vxd_assert_lock(&vx_info_hash_lock);
++ hlist_for_each(pos, head) {
++ vxi = hlist_entry(pos, struct vx_info, vx_hlist);
++
++ if (vxi->vx_id == xid)
++ goto found;
++ }
++ vxi = NULL;
++found:
++ vxdprintk(VXD_CBIT(xid, 0),
++ "__lookup_vx_info(#%u): %p[#%u]",
++ xid, vxi, vxi ? vxi->vx_id : 0);
++ vxh_lookup_vx_info(vxi, xid);
++ return vxi;
++}
++
++
++/* __create_vx_info()
++
++ * create the requested context
++ * get(), claim() and hash it */
++
++static struct vx_info *__create_vx_info(int id)
++{
++ struct vx_info *new, *vxi = NULL;
++
++ vxdprintk(VXD_CBIT(xid, 1), "create_vx_info(%d)*", id);
++
++ if (!(new = __alloc_vx_info(id)))
++ return ERR_PTR(-ENOMEM);
++
++ /* required to make dynamic xids unique */
++ spin_lock(&vx_info_hash_lock);
++
++ /* static context requested */
++ if ((vxi = __lookup_vx_info(id))) {
++ vxdprintk(VXD_CBIT(xid, 0),
++ "create_vx_info(%d) = %p (already there)", id, vxi);
++ if (vx_info_flags(vxi, VXF_STATE_SETUP, 0))
++ vxi = ERR_PTR(-EBUSY);
++ else
++ vxi = ERR_PTR(-EEXIST);
++ goto out_unlock;
++ }
++ /* new context */
++ vxdprintk(VXD_CBIT(xid, 0),
++ "create_vx_info(%d) = %p (new)", id, new);
++ claim_vx_info(new, NULL);
++ __hash_vx_info(get_vx_info(new));
++ vxi = new, new = NULL;
++
++out_unlock:
++ spin_unlock(&vx_info_hash_lock);
++ vxh_create_vx_info(IS_ERR(vxi) ? NULL : vxi, id);
++ if (new)
++ __dealloc_vx_info(new);
++ return vxi;
++}
++
++
++/* exported stuff */
++
++
++void unhash_vx_info(struct vx_info *vxi)
++{
++ __shutdown_vx_info(vxi);
++ spin_lock(&vx_info_hash_lock);
++ __unhash_vx_info(vxi);
++ spin_unlock(&vx_info_hash_lock);
++ __wakeup_vx_info(vxi);
++}
++
++
++/* lookup_vx_info()
++
++ * search for a vx_info and get() it
++ * negative id means current */
++
++struct vx_info *lookup_vx_info(int id)
++{
++ struct vx_info *vxi = NULL;
++
++ if (id < 0) {
++ vxi = get_vx_info(current_vx_info());
++ } else if (id > 1) {
++ spin_lock(&vx_info_hash_lock);
++ vxi = get_vx_info(__lookup_vx_info(id));
++ spin_unlock(&vx_info_hash_lock);
++ }
++ return vxi;
++}
++
++/* xid_is_hashed()
++
++ * verify that xid is still hashed */
++
++int xid_is_hashed(xid_t xid)
++{
++ int hashed;
++
++ spin_lock(&vx_info_hash_lock);
++ hashed = (__lookup_vx_info(xid) != NULL);
++ spin_unlock(&vx_info_hash_lock);
++ return hashed;
++}
++
++#ifdef CONFIG_PROC_FS
++
++/* get_xid_list()
++
++ * get a subset of hashed xids for proc
++ * assumes size is at least one */
++
++int get_xid_list(int index, unsigned int *xids, int size)
++{
++ int hindex, nr_xids = 0;
++
++ /* only show current and children */
++ if (!vx_check(0, VS_ADMIN | VS_WATCH)) {
++ if (index > 0)
++ return 0;
++ xids[nr_xids] = vx_current_xid();
++ return 1;
++ }
++
++ for (hindex = 0; hindex < VX_HASH_SIZE; hindex++) {
++ struct hlist_head *head = &vx_info_hash[hindex];
++ struct hlist_node *pos;
++
++ spin_lock(&vx_info_hash_lock);
++ hlist_for_each(pos, head) {
++ struct vx_info *vxi;
++
++ if (--index > 0)
++ continue;
++
++ vxi = hlist_entry(pos, struct vx_info, vx_hlist);
++ xids[nr_xids] = vxi->vx_id;
++ if (++nr_xids >= size) {
++ spin_unlock(&vx_info_hash_lock);
++ goto out;
++ }
++ }
++ /* keep the lock time short */
++ spin_unlock(&vx_info_hash_lock);
++ }
++out:
++ return nr_xids;
++}
++#endif
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++void dump_vx_info_inactive(int level)
++{
++ struct hlist_node *entry, *next;
++
++ hlist_for_each_safe(entry, next, &vx_info_inactive) {
++ struct vx_info *vxi =
++ list_entry(entry, struct vx_info, vx_hlist);
++
++ dump_vx_info(vxi, level);
++ }
++}
++
++#endif
++
++#if 0
++int vx_migrate_user(struct task_struct *p, struct vx_info *vxi)
++{
++ struct user_struct *new_user, *old_user;
++
++ if (!p || !vxi)
++ BUG();
++
++ if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0))
++ return -EACCES;
++
++ new_user = alloc_uid(vxi->vx_id, p->uid);
++ if (!new_user)
++ return -ENOMEM;
++
++ old_user = p->user;
++ if (new_user != old_user) {
++ atomic_inc(&new_user->processes);
++ atomic_dec(&old_user->processes);
++ p->user = new_user;
++ }
++ free_uid(old_user);
++ return 0;
++}
++#endif
++
++#if 0
++void vx_mask_cap_bset(struct vx_info *vxi, struct task_struct *p)
++{
++ // p->cap_effective &= vxi->vx_cap_bset;
++ p->cap_effective =
++ cap_intersect(p->cap_effective, vxi->cap_bset);
++ // p->cap_inheritable &= vxi->vx_cap_bset;
++ p->cap_inheritable =
++ cap_intersect(p->cap_inheritable, vxi->cap_bset);
++ // p->cap_permitted &= vxi->vx_cap_bset;
++ p->cap_permitted =
++ cap_intersect(p->cap_permitted, vxi->cap_bset);
++}
++#endif
++
++
++#include <linux/file.h>
++#include <linux/fdtable.h>
++
++static int vx_openfd_task(struct task_struct *tsk)
++{
++ struct files_struct *files = tsk->files;
++ struct fdtable *fdt;
++ const unsigned long *bptr;
++ int count, total;
++
++ /* no rcu_read_lock() because of spin_lock() */
++ spin_lock(&files->file_lock);
++ fdt = files_fdtable(files);
++ bptr = fdt->open_fds->fds_bits;
++ count = fdt->max_fds / (sizeof(unsigned long) * 8);
++ for (total = 0; count > 0; count--) {
++ if (*bptr)
++ total += hweight_long(*bptr);
++ bptr++;
++ }
++ spin_unlock(&files->file_lock);
++ return total;
++}
++
++
++/* for *space compatibility */
++
++asmlinkage long sys_unshare(unsigned long);
++
++/*
++ * migrate task to new context
++ * gets vxi, puts old_vxi on change
++ * optionally unshares namespaces (hack)
++ */
++
++int vx_migrate_task(struct task_struct *p, struct vx_info *vxi, int unshare)
++{
++ struct vx_info *old_vxi;
++ int ret = 0;
++
++ if (!p || !vxi)
++ BUG();
++
++ vxdprintk(VXD_CBIT(xid, 5),
++ "vx_migrate_task(%p,%p[#%d.%d])", p, vxi,
++ vxi->vx_id, atomic_read(&vxi->vx_usecnt));
++
++ if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0) &&
++ !vx_info_flags(vxi, VXF_STATE_SETUP, 0))
++ return -EACCES;
++
++ if (vx_info_state(vxi, VXS_SHUTDOWN))
++ return -EFAULT;
++
++ old_vxi = task_get_vx_info(p);
++ if (old_vxi == vxi)
++ goto out;
++
++// if (!(ret = vx_migrate_user(p, vxi))) {
++ {
++ int openfd;
++
++ task_lock(p);
++ openfd = vx_openfd_task(p);
++
++ if (old_vxi) {
++ atomic_dec(&old_vxi->cvirt.nr_threads);
++ atomic_dec(&old_vxi->cvirt.nr_running);
++ __rlim_dec(&old_vxi->limit, RLIMIT_NPROC);
++ /* FIXME: what about the struct files here? */
++ __rlim_sub(&old_vxi->limit, VLIMIT_OPENFD, openfd);
++ /* account for the executable */
++ __rlim_dec(&old_vxi->limit, VLIMIT_DENTRY);
++ }
++ atomic_inc(&vxi->cvirt.nr_threads);
++ atomic_inc(&vxi->cvirt.nr_running);
++ __rlim_inc(&vxi->limit, RLIMIT_NPROC);
++ /* FIXME: what about the struct files here? */
++ __rlim_add(&vxi->limit, VLIMIT_OPENFD, openfd);
++ /* account for the executable */
++ __rlim_inc(&vxi->limit, VLIMIT_DENTRY);
++
++ if (old_vxi) {
++ release_vx_info(old_vxi, p);
++ clr_vx_info(&p->vx_info);
++ }
++ claim_vx_info(vxi, p);
++ set_vx_info(&p->vx_info, vxi);
++ p->xid = vxi->vx_id;
++
++ vxdprintk(VXD_CBIT(xid, 5),
++ "moved task %p into vxi:%p[#%d]",
++ p, vxi, vxi->vx_id);
++
++ // vx_mask_cap_bset(vxi, p);
++ task_unlock(p);
++
++ /* hack for *spaces to provide compatibility */
++ if (unshare) {
++ struct nsproxy *old_nsp, *new_nsp;
++
++ ret = unshare_nsproxy_namespaces(
++ CLONE_NEWUTS | CLONE_NEWIPC | CLONE_NEWUSER,
++ &new_nsp, NULL);
++ if (ret)
++ goto out;
++
++ old_nsp = xchg(&p->nsproxy, new_nsp);
++ vx_set_space(vxi,
++ CLONE_NEWUTS | CLONE_NEWIPC | CLONE_NEWUSER, 0);
++ put_nsproxy(old_nsp);
++ }
++ }
++out:
++ put_vx_info(old_vxi);
++ return ret;
++}
++
++int vx_set_reaper(struct vx_info *vxi, struct task_struct *p)
++{
++ struct task_struct *old_reaper;
++
++ if (!vxi)
++ return -EINVAL;
++
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_set_reaper(%p[#%d],%p[#%d,%d])",
++ vxi, vxi->vx_id, p, p->xid, p->pid);
++
++ old_reaper = vxi->vx_reaper;
++ if (old_reaper == p)
++ return 0;
++
++ /* set new child reaper */
++ get_task_struct(p);
++ vxi->vx_reaper = p;
++ put_task_struct(old_reaper);
++ return 0;
++}
++
++int vx_set_init(struct vx_info *vxi, struct task_struct *p)
++{
++ if (!vxi)
++ return -EINVAL;
++
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_set_init(%p[#%d],%p[#%d,%d,%d])",
++ vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid);
++
++ vxi->vx_flags &= ~VXF_STATE_INIT;
++ // vxi->vx_initpid = p->tgid;
++ vxi->vx_initpid = p->pid;
++ return 0;
++}
++
++void vx_exit_init(struct vx_info *vxi, struct task_struct *p, int code)
++{
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_exit_init(%p[#%d],%p[#%d,%d,%d])",
++ vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid);
++
++ vxi->exit_code = code;
++ vxi->vx_initpid = 0;
++}
++
++
++void vx_set_persistent(struct vx_info *vxi)
++{
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_set_persistent(%p[#%d])", vxi, vxi->vx_id);
++
++ get_vx_info(vxi);
++ claim_vx_info(vxi, NULL);
++}
++
++void vx_clear_persistent(struct vx_info *vxi)
++{
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_clear_persistent(%p[#%d])", vxi, vxi->vx_id);
++
++ release_vx_info(vxi, NULL);
++ put_vx_info(vxi);
++}
++
++void vx_update_persistent(struct vx_info *vxi)
++{
++ if (vx_info_flags(vxi, VXF_PERSISTENT, 0))
++ vx_set_persistent(vxi);
++ else
++ vx_clear_persistent(vxi);
++}
++
++
++/* task must be current or locked */
++
++void exit_vx_info(struct task_struct *p, int code)
++{
++ struct vx_info *vxi = p->vx_info;
++
++ if (vxi) {
++ atomic_dec(&vxi->cvirt.nr_threads);
++ vx_nproc_dec(p);
++
++ vxi->exit_code = code;
++ release_vx_info(vxi, p);
++ }
++}
++
++void exit_vx_info_early(struct task_struct *p, int code)
++{
++ struct vx_info *vxi = p->vx_info;
++
++ if (vxi) {
++ if (vxi->vx_initpid == p->pid)
++ vx_exit_init(vxi, p, code);
++ if (vxi->vx_reaper == p)
++ vx_set_reaper(vxi, init_pid_ns.child_reaper);
++ }
++}
++
++
++/* vserver syscall commands below here */
++
++/* taks xid and vx_info functions */
++
++#include <asm/uaccess.h>
++
++
++int vc_task_xid(uint32_t id)
++{
++ xid_t xid;
++
++ if (id) {
++ struct task_struct *tsk;
++
++ read_lock(&tasklist_lock);
++ tsk = find_task_by_real_pid(id);
++ xid = (tsk) ? tsk->xid : -ESRCH;
++ read_unlock(&tasklist_lock);
++ } else
++ xid = vx_current_xid();
++ return xid;
++}
++
++
++int vc_vx_info(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_vx_info_v0 vc_data;
++
++ vc_data.xid = vxi->vx_id;
++ vc_data.initpid = vxi->vx_initpid;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++int vc_ctx_stat(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_stat_v0 vc_data;
++
++ vc_data.usecnt = atomic_read(&vxi->vx_usecnt);
++ vc_data.tasks = atomic_read(&vxi->vx_tasks);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++/* context functions */
++
++int vc_ctx_create(uint32_t xid, void __user *data)
++{
++ struct vcmd_ctx_create vc_data = { .flagword = VXF_INIT_SET };
++ struct vx_info *new_vxi;
++ int ret;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ if ((xid > MAX_S_CONTEXT) || (xid < 2))
++ return -EINVAL;
++
++ new_vxi = __create_vx_info(xid);
++ if (IS_ERR(new_vxi))
++ return PTR_ERR(new_vxi);
++
++ /* initial flags */
++ new_vxi->vx_flags = vc_data.flagword;
++
++ ret = -ENOEXEC;
++ if (vs_state_change(new_vxi, VSC_STARTUP))
++ goto out;
++
++ ret = vx_migrate_task(current, new_vxi, (!data));
++ if (ret)
++ goto out;
++
++ /* return context id on success */
++ ret = new_vxi->vx_id;
++
++ /* get a reference for persistent contexts */
++ if ((vc_data.flagword & VXF_PERSISTENT))
++ vx_set_persistent(new_vxi);
++out:
++ release_vx_info(new_vxi, NULL);
++ put_vx_info(new_vxi);
++ return ret;
++}
++
++
++int vc_ctx_migrate(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_migrate vc_data = { .flagword = 0 };
++ int ret;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = vx_migrate_task(current, vxi, 0);
++ if (ret)
++ return ret;
++ if (vc_data.flagword & VXM_SET_INIT)
++ ret = vx_set_init(vxi, current);
++ if (ret)
++ return ret;
++ if (vc_data.flagword & VXM_SET_REAPER)
++ ret = vx_set_reaper(vxi, current);
++ return ret;
++}
++
++
++int vc_get_cflags(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_flags_v0 vc_data;
++
++ vc_data.flagword = vxi->vx_flags;
++
++ /* special STATE flag handling */
++ vc_data.mask = vs_mask_flags(~0ULL, vxi->vx_flags, VXF_ONE_TIME);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_cflags(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_flags_v0 vc_data;
++ uint64_t mask, trigger;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ /* special STATE flag handling */
++ mask = vs_mask_mask(vc_data.mask, vxi->vx_flags, VXF_ONE_TIME);
++ trigger = (mask & vxi->vx_flags) ^ (mask & vc_data.flagword);
++
++ if (vxi == current_vx_info()) {
++ /* if (trigger & VXF_STATE_SETUP)
++ vx_mask_cap_bset(vxi, current); */
++ if (trigger & VXF_STATE_INIT) {
++ int ret;
++
++ ret = vx_set_init(vxi, current);
++ if (ret)
++ return ret;
++ ret = vx_set_reaper(vxi, current);
++ if (ret)
++ return ret;
++ }
++ }
++
++ vxi->vx_flags = vs_mask_flags(vxi->vx_flags,
++ vc_data.flagword, mask);
++ if (trigger & VXF_PERSISTENT)
++ vx_update_persistent(vxi);
++
++ return 0;
++}
++
++
++static inline uint64_t caps_from_cap_t(kernel_cap_t c)
++{
++ uint64_t v = c.cap[0] | ((uint64_t)c.cap[1] << 32);
++
++ // printk("caps_from_cap_t(%08x:%08x) = %016llx\n", c.cap[1], c.cap[0], v);
++ return v;
++}
++
++static inline kernel_cap_t cap_t_from_caps(uint64_t v)
++{
++ kernel_cap_t c = __cap_empty_set;
++
++ c.cap[0] = v & 0xFFFFFFFF;
++ c.cap[1] = (v >> 32) & 0xFFFFFFFF;
++
++ // printk("cap_t_from_caps(%016llx) = %08x:%08x\n", v, c.cap[1], c.cap[0]);
++ return c;
++}
++
++
++static int do_get_caps(struct vx_info *vxi, uint64_t *bcaps, uint64_t *ccaps)
++{
++ if (bcaps)
++ *bcaps = caps_from_cap_t(vxi->vx_bcaps);
++ if (ccaps)
++ *ccaps = vxi->vx_ccaps;
++
++ return 0;
++}
++
++int vc_get_ccaps(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_caps_v1 vc_data;
++ int ret;
++
++ ret = do_get_caps(vxi, NULL, &vc_data.ccaps);
++ if (ret)
++ return ret;
++ vc_data.cmask = ~0ULL;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++static int do_set_caps(struct vx_info *vxi,
++ uint64_t bcaps, uint64_t bmask, uint64_t ccaps, uint64_t cmask)
++{
++ uint64_t bcold = caps_from_cap_t(vxi->vx_bcaps);
++
++#if 0
++ printk("do_set_caps(%16llx, %16llx, %16llx, %16llx)\n",
++ bcaps, bmask, ccaps, cmask);
++#endif
++ vxi->vx_bcaps = cap_t_from_caps(
++ vs_mask_flags(bcold, bcaps, bmask));
++ vxi->vx_ccaps = vs_mask_flags(vxi->vx_ccaps, ccaps, cmask);
++
++ return 0;
++}
++
++int vc_set_ccaps(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_caps_v1 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_caps(vxi, 0, 0, vc_data.ccaps, vc_data.cmask);
++}
++
++int vc_get_bcaps(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_bcaps vc_data;
++ int ret;
++
++ ret = do_get_caps(vxi, &vc_data.bcaps, NULL);
++ if (ret)
++ return ret;
++ vc_data.bmask = ~0ULL;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_bcaps(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_bcaps vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_caps(vxi, vc_data.bcaps, vc_data.bmask, 0, 0);
++}
++
++
++int vc_get_umask(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_umask vc_data;
++
++ vc_data.umask = vxi->vx_umask;
++ vc_data.mask = ~0ULL;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_umask(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_umask vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ vxi->vx_umask = vs_mask_flags(vxi->vx_umask,
++ vc_data.umask, vc_data.mask);
++ return 0;
++}
++
++
++int vc_get_badness(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_badness_v0 vc_data;
++
++ vc_data.bias = vxi->vx_badness_bias;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_badness(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_badness_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ vxi->vx_badness_bias = vc_data.bias;
++ return 0;
++}
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(free_vx_info);
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/cvirt.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cvirt.c
+--- linux-2.6.32.1/kernel/vserver/cvirt.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cvirt.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,304 @@
++/*
++ * linux/kernel/vserver/cvirt.c
++ *
++ * Virtual Server: Context Virtualization
++ *
++ * Copyright (C) 2004-2007 Herbert Pötzl
++ *
++ * V0.01 broken out from limit.c
++ * V0.02 added utsname stuff
++ * V0.03 changed vcmds to vxi arg
++ *
++ */
++
++#include <linux/types.h>
++#include <linux/utsname.h>
++#include <linux/vs_cvirt.h>
++#include <linux/vserver/switch.h>
++#include <linux/vserver/cvirt_cmd.h>
++
++#include <asm/uaccess.h>
++
++
++void vx_vsi_uptime(struct timespec *uptime, struct timespec *idle)
++{
++ struct vx_info *vxi = current_vx_info();
++
++ set_normalized_timespec(uptime,
++ uptime->tv_sec - vxi->cvirt.bias_uptime.tv_sec,
++ uptime->tv_nsec - vxi->cvirt.bias_uptime.tv_nsec);
++ if (!idle)
++ return;
++ set_normalized_timespec(idle,
++ idle->tv_sec - vxi->cvirt.bias_idle.tv_sec,
++ idle->tv_nsec - vxi->cvirt.bias_idle.tv_nsec);
++ return;
++}
++
++uint64_t vx_idle_jiffies(void)
++{
++ return init_task.utime + init_task.stime;
++}
++
++
++
++static inline uint32_t __update_loadavg(uint32_t load,
++ int wsize, int delta, int n)
++{
++ unsigned long long calc, prev;
++
++ /* just set it to n */
++ if (unlikely(delta >= wsize))
++ return (n << FSHIFT);
++
++ calc = delta * n;
++ calc <<= FSHIFT;
++ prev = (wsize - delta);
++ prev *= load;
++ calc += prev;
++ do_div(calc, wsize);
++ return calc;
++}
++
++
++void vx_update_load(struct vx_info *vxi)
++{
++ uint32_t now, last, delta;
++ unsigned int nr_running, nr_uninterruptible;
++ unsigned int total;
++ unsigned long flags;
++
++ spin_lock_irqsave(&vxi->cvirt.load_lock, flags);
++
++ now = jiffies;
++ last = vxi->cvirt.load_last;
++ delta = now - last;
++
++ if (delta < 5*HZ)
++ goto out;
++
++ nr_running = atomic_read(&vxi->cvirt.nr_running);
++ nr_uninterruptible = atomic_read(&vxi->cvirt.nr_uninterruptible);
++ total = nr_running + nr_uninterruptible;
++
++ vxi->cvirt.load[0] = __update_loadavg(vxi->cvirt.load[0],
++ 60*HZ, delta, total);
++ vxi->cvirt.load[1] = __update_loadavg(vxi->cvirt.load[1],
++ 5*60*HZ, delta, total);
++ vxi->cvirt.load[2] = __update_loadavg(vxi->cvirt.load[2],
++ 15*60*HZ, delta, total);
++
++ vxi->cvirt.load_last = now;
++out:
++ atomic_inc(&vxi->cvirt.load_updates);
++ spin_unlock_irqrestore(&vxi->cvirt.load_lock, flags);
++}
++
++
++/*
++ * Commands to do_syslog:
++ *
++ * 0 -- Close the log. Currently a NOP.
++ * 1 -- Open the log. Currently a NOP.
++ * 2 -- Read from the log.
++ * 3 -- Read all messages remaining in the ring buffer.
++ * 4 -- Read and clear all messages remaining in the ring buffer
++ * 5 -- Clear ring buffer.
++ * 6 -- Disable printk's to console
++ * 7 -- Enable printk's to console
++ * 8 -- Set level of messages printed to console
++ * 9 -- Return number of unread characters in the log buffer
++ * 10 -- Return size of the log buffer
++ */
++int vx_do_syslog(int type, char __user *buf, int len)
++{
++ int error = 0;
++ int do_clear = 0;
++ struct vx_info *vxi = current_vx_info();
++ struct _vx_syslog *log;
++
++ if (!vxi)
++ return -EINVAL;
++ log = &vxi->cvirt.syslog;
++
++ switch (type) {
++ case 0: /* Close log */
++ case 1: /* Open log */
++ break;
++ case 2: /* Read from log */
++ error = wait_event_interruptible(log->log_wait,
++ (log->log_start - log->log_end));
++ if (error)
++ break;
++ spin_lock_irq(&log->logbuf_lock);
++ spin_unlock_irq(&log->logbuf_lock);
++ break;
++ case 4: /* Read/clear last kernel messages */
++ do_clear = 1;
++ /* fall through */
++ case 3: /* Read last kernel messages */
++ return 0;
++
++ case 5: /* Clear ring buffer */
++ return 0;
++
++ case 6: /* Disable logging to console */
++ case 7: /* Enable logging to console */
++ case 8: /* Set level of messages printed to console */
++ break;
++
++ case 9: /* Number of chars in the log buffer */
++ return 0;
++ case 10: /* Size of the log buffer */
++ return 0;
++ default:
++ error = -EINVAL;
++ break;
++ }
++ return error;
++}
++
++
++/* virtual host info names */
++
++static char *vx_vhi_name(struct vx_info *vxi, int id)
++{
++ struct nsproxy *nsproxy;
++ struct uts_namespace *uts;
++
++ if (id == VHIN_CONTEXT)
++ return vxi->vx_name;
++
++ nsproxy = vxi->vx_nsproxy[0];
++ if (!nsproxy)
++ return NULL;
++
++ uts = nsproxy->uts_ns;
++ if (!uts)
++ return NULL;
++
++ switch (id) {
++ case VHIN_SYSNAME:
++ return uts->name.sysname;
++ case VHIN_NODENAME:
++ return uts->name.nodename;
++ case VHIN_RELEASE:
++ return uts->name.release;
++ case VHIN_VERSION:
++ return uts->name.version;
++ case VHIN_MACHINE:
++ return uts->name.machine;
++ case VHIN_DOMAINNAME:
++ return uts->name.domainname;
++ default:
++ return NULL;
++ }
++ return NULL;
++}
++
++int vc_set_vhi_name(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_vhi_name_v0 vc_data;
++ char *name;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ name = vx_vhi_name(vxi, vc_data.field);
++ if (!name)
++ return -EINVAL;
++
++ memcpy(name, vc_data.name, 65);
++ return 0;
++}
++
++int vc_get_vhi_name(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_vhi_name_v0 vc_data;
++ char *name;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ name = vx_vhi_name(vxi, vc_data.field);
++ if (!name)
++ return -EINVAL;
++
++ memcpy(vc_data.name, name, 65);
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++int vc_virt_stat(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_virt_stat_v0 vc_data;
++ struct _vx_cvirt *cvirt = &vxi->cvirt;
++ struct timespec uptime;
++
++ do_posix_clock_monotonic_gettime(&uptime);
++ set_normalized_timespec(&uptime,
++ uptime.tv_sec - cvirt->bias_uptime.tv_sec,
++ uptime.tv_nsec - cvirt->bias_uptime.tv_nsec);
++
++ vc_data.offset = timeval_to_ns(&cvirt->bias_tv);
++ vc_data.uptime = timespec_to_ns(&uptime);
++ vc_data.nr_threads = atomic_read(&cvirt->nr_threads);
++ vc_data.nr_running = atomic_read(&cvirt->nr_running);
++ vc_data.nr_uninterruptible = atomic_read(&cvirt->nr_uninterruptible);
++ vc_data.nr_onhold = atomic_read(&cvirt->nr_onhold);
++ vc_data.nr_forks = atomic_read(&cvirt->total_forks);
++ vc_data.load[0] = cvirt->load[0];
++ vc_data.load[1] = cvirt->load[1];
++ vc_data.load[2] = cvirt->load[2];
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++#ifdef CONFIG_VSERVER_VTIME
++
++/* virtualized time base */
++
++void vx_gettimeofday(struct timeval *tv)
++{
++ struct vx_info *vxi;
++
++ do_gettimeofday(tv);
++ if (!vx_flags(VXF_VIRT_TIME, 0))
++ return;
++
++ vxi = current_vx_info();
++ tv->tv_sec += vxi->cvirt.bias_tv.tv_sec;
++ tv->tv_usec += vxi->cvirt.bias_tv.tv_usec;
++
++ if (tv->tv_usec >= USEC_PER_SEC) {
++ tv->tv_sec++;
++ tv->tv_usec -= USEC_PER_SEC;
++ } else if (tv->tv_usec < 0) {
++ tv->tv_sec--;
++ tv->tv_usec += USEC_PER_SEC;
++ }
++}
++
++int vx_settimeofday(struct timespec *ts)
++{
++ struct timeval tv;
++ struct vx_info *vxi;
++
++ if (!vx_flags(VXF_VIRT_TIME, 0))
++ return do_settimeofday(ts);
++
++ do_gettimeofday(&tv);
++ vxi = current_vx_info();
++ vxi->cvirt.bias_tv.tv_sec = ts->tv_sec - tv.tv_sec;
++ vxi->cvirt.bias_tv.tv_usec =
++ (ts->tv_nsec/NSEC_PER_USEC) - tv.tv_usec;
++ return 0;
++}
++
++#endif
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/cvirt_init.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cvirt_init.h
+--- linux-2.6.32.1/kernel/vserver/cvirt_init.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cvirt_init.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,69 @@
++
++
++extern uint64_t vx_idle_jiffies(void);
++
++static inline void vx_info_init_cvirt(struct _vx_cvirt *cvirt)
++{
++ uint64_t idle_jiffies = vx_idle_jiffies();
++ uint64_t nsuptime;
++
++ do_posix_clock_monotonic_gettime(&cvirt->bias_uptime);
++ nsuptime = (unsigned long long)cvirt->bias_uptime.tv_sec
++ * NSEC_PER_SEC + cvirt->bias_uptime.tv_nsec;
++ cvirt->bias_clock = nsec_to_clock_t(nsuptime);
++ cvirt->bias_tv.tv_sec = 0;
++ cvirt->bias_tv.tv_usec = 0;
++
++ jiffies_to_timespec(idle_jiffies, &cvirt->bias_idle);
++ atomic_set(&cvirt->nr_threads, 0);
++ atomic_set(&cvirt->nr_running, 0);
++ atomic_set(&cvirt->nr_uninterruptible, 0);
++ atomic_set(&cvirt->nr_onhold, 0);
++
++ spin_lock_init(&cvirt->load_lock);
++ cvirt->load_last = jiffies;
++ atomic_set(&cvirt->load_updates, 0);
++ cvirt->load[0] = 0;
++ cvirt->load[1] = 0;
++ cvirt->load[2] = 0;
++ atomic_set(&cvirt->total_forks, 0);
++
++ spin_lock_init(&cvirt->syslog.logbuf_lock);
++ init_waitqueue_head(&cvirt->syslog.log_wait);
++ cvirt->syslog.log_start = 0;
++ cvirt->syslog.log_end = 0;
++ cvirt->syslog.con_start = 0;
++ cvirt->syslog.logged_chars = 0;
++}
++
++static inline
++void vx_info_init_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, int cpu)
++{
++ // cvirt_pc->cpustat = { 0 };
++}
++
++static inline void vx_info_exit_cvirt(struct _vx_cvirt *cvirt)
++{
++ int value;
++
++ vxwprintk_xid((value = atomic_read(&cvirt->nr_threads)),
++ "!!! cvirt: %p[nr_threads] = %d on exit.",
++ cvirt, value);
++ vxwprintk_xid((value = atomic_read(&cvirt->nr_running)),
++ "!!! cvirt: %p[nr_running] = %d on exit.",
++ cvirt, value);
++ vxwprintk_xid((value = atomic_read(&cvirt->nr_uninterruptible)),
++ "!!! cvirt: %p[nr_uninterruptible] = %d on exit.",
++ cvirt, value);
++ vxwprintk_xid((value = atomic_read(&cvirt->nr_onhold)),
++ "!!! cvirt: %p[nr_onhold] = %d on exit.",
++ cvirt, value);
++ return;
++}
++
++static inline
++void vx_info_exit_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, int cpu)
++{
++ return;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/cvirt_proc.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cvirt_proc.h
+--- linux-2.6.32.1/kernel/vserver/cvirt_proc.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/cvirt_proc.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,135 @@
++#ifndef _VX_CVIRT_PROC_H
++#define _VX_CVIRT_PROC_H
++
++#include <linux/nsproxy.h>
++#include <linux/mnt_namespace.h>
++#include <linux/ipc_namespace.h>
++#include <linux/utsname.h>
++#include <linux/ipc.h>
++
++
++static inline
++int vx_info_proc_nsproxy(struct nsproxy *nsproxy, char *buffer)
++{
++ struct mnt_namespace *ns;
++ struct uts_namespace *uts;
++ struct ipc_namespace *ipc;
++ struct path path;
++ char *pstr, *root;
++ int length = 0;
++
++ if (!nsproxy)
++ goto out;
++
++ length += sprintf(buffer + length,
++ "NSProxy:\t%p [%p,%p,%p]\n",
++ nsproxy, nsproxy->mnt_ns,
++ nsproxy->uts_ns, nsproxy->ipc_ns);
++
++ ns = nsproxy->mnt_ns;
++ if (!ns)
++ goto skip_ns;
++
++ pstr = kmalloc(PATH_MAX, GFP_KERNEL);
++ if (!pstr)
++ goto skip_ns;
++
++ path.mnt = ns->root;
++ path.dentry = ns->root->mnt_root;
++ root = d_path(&path, pstr, PATH_MAX - 2);
++ length += sprintf(buffer + length,
++ "Namespace:\t%p [#%u]\n"
++ "RootPath:\t%s\n",
++ ns, atomic_read(&ns->count),
++ root);
++ kfree(pstr);
++skip_ns:
++
++ uts = nsproxy->uts_ns;
++ if (!uts)
++ goto skip_uts;
++
++ length += sprintf(buffer + length,
++ "SysName:\t%.*s\n"
++ "NodeName:\t%.*s\n"
++ "Release:\t%.*s\n"
++ "Version:\t%.*s\n"
++ "Machine:\t%.*s\n"
++ "DomainName:\t%.*s\n",
++ __NEW_UTS_LEN, uts->name.sysname,
++ __NEW_UTS_LEN, uts->name.nodename,
++ __NEW_UTS_LEN, uts->name.release,
++ __NEW_UTS_LEN, uts->name.version,
++ __NEW_UTS_LEN, uts->name.machine,
++ __NEW_UTS_LEN, uts->name.domainname);
++skip_uts:
++
++ ipc = nsproxy->ipc_ns;
++ if (!ipc)
++ goto skip_ipc;
++
++ length += sprintf(buffer + length,
++ "SEMS:\t\t%d %d %d %d %d\n"
++ "MSG:\t\t%d %d %d\n"
++ "SHM:\t\t%lu %lu %d %d\n",
++ ipc->sem_ctls[0], ipc->sem_ctls[1],
++ ipc->sem_ctls[2], ipc->sem_ctls[3],
++ ipc->used_sems,
++ ipc->msg_ctlmax, ipc->msg_ctlmnb, ipc->msg_ctlmni,
++ (unsigned long)ipc->shm_ctlmax,
++ (unsigned long)ipc->shm_ctlall,
++ ipc->shm_ctlmni, ipc->shm_tot);
++skip_ipc:
++out:
++ return length;
++}
++
++
++#include <linux/sched.h>
++
++#define LOAD_INT(x) ((x) >> FSHIFT)
++#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1 - 1)) * 100)
++
++static inline
++int vx_info_proc_cvirt(struct _vx_cvirt *cvirt, char *buffer)
++{
++ int length = 0;
++ int a, b, c;
++
++ length += sprintf(buffer + length,
++ "BiasUptime:\t%lu.%02lu\n",
++ (unsigned long)cvirt->bias_uptime.tv_sec,
++ (cvirt->bias_uptime.tv_nsec / (NSEC_PER_SEC / 100)));
++
++ a = cvirt->load[0] + (FIXED_1 / 200);
++ b = cvirt->load[1] + (FIXED_1 / 200);
++ c = cvirt->load[2] + (FIXED_1 / 200);
++ length += sprintf(buffer + length,
++ "nr_threads:\t%d\n"
++ "nr_running:\t%d\n"
++ "nr_unintr:\t%d\n"
++ "nr_onhold:\t%d\n"
++ "load_updates:\t%d\n"
++ "loadavg:\t%d.%02d %d.%02d %d.%02d\n"
++ "total_forks:\t%d\n",
++ atomic_read(&cvirt->nr_threads),
++ atomic_read(&cvirt->nr_running),
++ atomic_read(&cvirt->nr_uninterruptible),
++ atomic_read(&cvirt->nr_onhold),
++ atomic_read(&cvirt->load_updates),
++ LOAD_INT(a), LOAD_FRAC(a),
++ LOAD_INT(b), LOAD_FRAC(b),
++ LOAD_INT(c), LOAD_FRAC(c),
++ atomic_read(&cvirt->total_forks));
++ return length;
++}
++
++static inline
++int vx_info_proc_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc,
++ char *buffer, int cpu)
++{
++ int length = 0;
++ return length;
++}
++
++#endif /* _VX_CVIRT_PROC_H */
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/debug.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/debug.c
+--- linux-2.6.32.1/kernel/vserver/debug.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/debug.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,32 @@
++/*
++ * kernel/vserver/debug.c
++ *
++ * Copyright (C) 2005-2007 Herbert Pötzl
++ *
++ * V0.01 vx_info dump support
++ *
++ */
++
++#include <linux/module.h>
++
++#include <linux/vserver/context.h>
++
++
++void dump_vx_info(struct vx_info *vxi, int level)
++{
++ printk("vx_info %p[#%d, %d.%d, %4x]\n", vxi, vxi->vx_id,
++ atomic_read(&vxi->vx_usecnt),
++ atomic_read(&vxi->vx_tasks),
++ vxi->vx_state);
++ if (level > 0) {
++ __dump_vx_limit(&vxi->limit);
++ __dump_vx_sched(&vxi->sched);
++ __dump_vx_cvirt(&vxi->cvirt);
++ __dump_vx_cacct(&vxi->cacct);
++ }
++ printk("---\n");
++}
++
++
++EXPORT_SYMBOL_GPL(dump_vx_info);
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/device.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/device.c
+--- linux-2.6.32.1/kernel/vserver/device.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/device.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,443 @@
++/*
++ * linux/kernel/vserver/device.c
++ *
++ * Linux-VServer: Device Support
++ *
++ * Copyright (C) 2006 Herbert Pötzl
++ * Copyright (C) 2007 Daniel Hokka Zakrisson
++ *
++ * V0.01 device mapping basics
++ * V0.02 added defaults
++ *
++ */
++
++#include <linux/slab.h>
++#include <linux/rcupdate.h>
++#include <linux/fs.h>
++#include <linux/namei.h>
++#include <linux/hash.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++#include <linux/vserver/base.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/context.h>
++#include <linux/vserver/device.h>
++#include <linux/vserver/device_cmd.h>
++
++
++#define DMAP_HASH_BITS 4
++
++
++struct vs_mapping {
++ union {
++ struct hlist_node hlist;
++ struct list_head list;
++ } u;
++#define dm_hlist u.hlist
++#define dm_list u.list
++ xid_t xid;
++ dev_t device;
++ struct vx_dmap_target target;
++};
++
++
++static struct hlist_head dmap_main_hash[1 << DMAP_HASH_BITS];
++
++static spinlock_t dmap_main_hash_lock = SPIN_LOCK_UNLOCKED;
++
++static struct vx_dmap_target dmap_defaults[2] = {
++ { .flags = DATTR_OPEN },
++ { .flags = DATTR_OPEN },
++};
++
++
++struct kmem_cache *dmap_cachep __read_mostly;
++
++int __init dmap_cache_init(void)
++{
++ dmap_cachep = kmem_cache_create("dmap_cache",
++ sizeof(struct vs_mapping), 0,
++ SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
++ return 0;
++}
++
++__initcall(dmap_cache_init);
++
++
++static inline unsigned int __hashval(dev_t dev, int bits)
++{
++ return hash_long((unsigned long)dev, bits);
++}
++
++
++/* __hash_mapping()
++ * add the mapping to the hash table
++ */
++static inline void __hash_mapping(struct vx_info *vxi, struct vs_mapping *vdm)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ struct hlist_head *head, *hash = dmap_main_hash;
++ int device = vdm->device;
++
++ spin_lock(hash_lock);
++ vxdprintk(VXD_CBIT(misc, 8), "__hash_mapping: %p[#%d] %08x:%08x",
++ vxi, vxi ? vxi->vx_id : 0, device, vdm->target.target);
++
++ head = &hash[__hashval(device, DMAP_HASH_BITS)];
++ hlist_add_head(&vdm->dm_hlist, head);
++ spin_unlock(hash_lock);
++}
++
++
++static inline int __mode_to_default(umode_t mode)
++{
++ switch (mode) {
++ case S_IFBLK:
++ return 0;
++ case S_IFCHR:
++ return 1;
++ default:
++ BUG();
++ }
++}
++
++
++/* __set_default()
++ * set a default
++ */
++static inline void __set_default(struct vx_info *vxi, umode_t mode,
++ struct vx_dmap_target *vdmt)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ spin_lock(hash_lock);
++
++ if (vxi)
++ vxi->dmap.targets[__mode_to_default(mode)] = *vdmt;
++ else
++ dmap_defaults[__mode_to_default(mode)] = *vdmt;
++
++
++ spin_unlock(hash_lock);
++
++ vxdprintk(VXD_CBIT(misc, 8), "__set_default: %p[#%u] %08x %04x",
++ vxi, vxi ? vxi->vx_id : 0, vdmt->target, vdmt->flags);
++}
++
++
++/* __remove_default()
++ * remove a default
++ */
++static inline int __remove_default(struct vx_info *vxi, umode_t mode)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ spin_lock(hash_lock);
++
++ if (vxi)
++ vxi->dmap.targets[__mode_to_default(mode)].flags = 0;
++ else /* remove == reset */
++ dmap_defaults[__mode_to_default(mode)].flags = DATTR_OPEN | mode;
++
++ spin_unlock(hash_lock);
++ return 0;
++}
++
++
++/* __find_mapping()
++ * find a mapping in the hash table
++ *
++ * caller must hold hash_lock
++ */
++static inline int __find_mapping(xid_t xid, dev_t device, umode_t mode,
++ struct vs_mapping **local, struct vs_mapping **global)
++{
++ struct hlist_head *hash = dmap_main_hash;
++ struct hlist_head *head = &hash[__hashval(device, DMAP_HASH_BITS)];
++ struct hlist_node *pos;
++ struct vs_mapping *vdm;
++
++ *local = NULL;
++ if (global)
++ *global = NULL;
++
++ hlist_for_each(pos, head) {
++ vdm = hlist_entry(pos, struct vs_mapping, dm_hlist);
++
++ if ((vdm->device == device) &&
++ !((vdm->target.flags ^ mode) & S_IFMT)) {
++ if (vdm->xid == xid) {
++ *local = vdm;
++ return 1;
++ } else if (global && vdm->xid == 0)
++ *global = vdm;
++ }
++ }
++
++ if (global && *global)
++ return 0;
++ else
++ return -ENOENT;
++}
++
++
++/* __lookup_mapping()
++ * find a mapping and store the result in target and flags
++ */
++static inline int __lookup_mapping(struct vx_info *vxi,
++ dev_t device, dev_t *target, int *flags, umode_t mode)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ struct vs_mapping *vdm, *global;
++ struct vx_dmap_target *vdmt;
++ int ret = 0;
++ xid_t xid = vxi->vx_id;
++ int index;
++
++ spin_lock(hash_lock);
++ if (__find_mapping(xid, device, mode, &vdm, &global) > 0) {
++ ret = 1;
++ vdmt = &vdm->target;
++ goto found;
++ }
++
++ index = __mode_to_default(mode);
++ if (vxi && vxi->dmap.targets[index].flags) {
++ ret = 2;
++ vdmt = &vxi->dmap.targets[index];
++ } else if (global) {
++ ret = 3;
++ vdmt = &global->target;
++ goto found;
++ } else {
++ ret = 4;
++ vdmt = &dmap_defaults[index];
++ }
++
++found:
++ if (target && (vdmt->flags & DATTR_REMAP))
++ *target = vdmt->target;
++ else if (target)
++ *target = device;
++ if (flags)
++ *flags = vdmt->flags;
++
++ spin_unlock(hash_lock);
++
++ return ret;
++}
++
++
++/* __remove_mapping()
++ * remove a mapping from the hash table
++ */
++static inline int __remove_mapping(struct vx_info *vxi, dev_t device,
++ umode_t mode)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ struct vs_mapping *vdm = NULL;
++ int ret = 0;
++
++ spin_lock(hash_lock);
++
++ ret = __find_mapping((vxi ? vxi->vx_id : 0), device, mode, &vdm,
++ NULL);
++ vxdprintk(VXD_CBIT(misc, 8), "__remove_mapping: %p[#%d] %08x %04x",
++ vxi, vxi ? vxi->vx_id : 0, device, mode);
++ if (ret < 0)
++ goto out;
++ hlist_del(&vdm->dm_hlist);
++
++out:
++ spin_unlock(hash_lock);
++ if (vdm)
++ kmem_cache_free(dmap_cachep, vdm);
++ return ret;
++}
++
++
++
++int vs_map_device(struct vx_info *vxi,
++ dev_t device, dev_t *target, umode_t mode)
++{
++ int ret, flags = DATTR_MASK;
++
++ if (!vxi) {
++ if (target)
++ *target = device;
++ goto out;
++ }
++ ret = __lookup_mapping(vxi, device, target, &flags, mode);
++ vxdprintk(VXD_CBIT(misc, 8), "vs_map_device: %08x target: %08x flags: %04x mode: %04x mapped=%d",
++ device, target ? *target : 0, flags, mode, ret);
++out:
++ return (flags & DATTR_MASK);
++}
++
++
++
++static int do_set_mapping(struct vx_info *vxi,
++ dev_t device, dev_t target, int flags, umode_t mode)
++{
++ if (device) {
++ struct vs_mapping *new;
++
++ new = kmem_cache_alloc(dmap_cachep, GFP_KERNEL);
++ if (!new)
++ return -ENOMEM;
++
++ INIT_HLIST_NODE(&new->dm_hlist);
++ new->device = device;
++ new->target.target = target;
++ new->target.flags = flags | mode;
++ new->xid = (vxi ? vxi->vx_id : 0);
++
++ vxdprintk(VXD_CBIT(misc, 8), "do_set_mapping: %08x target: %08x flags: %04x", device, target, flags);
++ __hash_mapping(vxi, new);
++ } else {
++ struct vx_dmap_target new = {
++ .target = target,
++ .flags = flags | mode,
++ };
++ __set_default(vxi, mode, &new);
++ }
++ return 0;
++}
++
++
++static int do_unset_mapping(struct vx_info *vxi,
++ dev_t device, dev_t target, int flags, umode_t mode)
++{
++ int ret = -EINVAL;
++
++ if (device) {
++ ret = __remove_mapping(vxi, device, mode);
++ if (ret < 0)
++ goto out;
++ } else {
++ ret = __remove_default(vxi, mode);
++ if (ret < 0)
++ goto out;
++ }
++
++out:
++ return ret;
++}
++
++
++static inline int __user_device(const char __user *name, dev_t *dev,
++ umode_t *mode)
++{
++ struct nameidata nd;
++ int ret;
++
++ if (!name) {
++ *dev = 0;
++ return 0;
++ }
++ ret = user_lpath(name, &nd.path);
++ if (ret)
++ return ret;
++ if (nd.path.dentry->d_inode) {
++ *dev = nd.path.dentry->d_inode->i_rdev;
++ *mode = nd.path.dentry->d_inode->i_mode;
++ }
++ path_put(&nd.path);
++ return 0;
++}
++
++static inline int __mapping_mode(dev_t device, dev_t target,
++ umode_t device_mode, umode_t target_mode, umode_t *mode)
++{
++ if (device)
++ *mode = device_mode & S_IFMT;
++ else if (target)
++ *mode = target_mode & S_IFMT;
++ else
++ return -EINVAL;
++
++ /* if both given, device and target mode have to match */
++ if (device && target &&
++ ((device_mode ^ target_mode) & S_IFMT))
++ return -EINVAL;
++ return 0;
++}
++
++
++static inline int do_mapping(struct vx_info *vxi, const char __user *device_path,
++ const char __user *target_path, int flags, int set)
++{
++ dev_t device = ~0, target = ~0;
++ umode_t device_mode = 0, target_mode = 0, mode;
++ int ret;
++
++ ret = __user_device(device_path, &device, &device_mode);
++ if (ret)
++ return ret;
++ ret = __user_device(target_path, &target, &target_mode);
++ if (ret)
++ return ret;
++
++ ret = __mapping_mode(device, target,
++ device_mode, target_mode, &mode);
++ if (ret)
++ return ret;
++
++ if (set)
++ return do_set_mapping(vxi, device, target,
++ flags, mode);
++ else
++ return do_unset_mapping(vxi, device, target,
++ flags, mode);
++}
++
++
++int vc_set_mapping(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_mapping_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_mapping(vxi, vc_data.device, vc_data.target,
++ vc_data.flags, 1);
++}
++
++int vc_unset_mapping(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_mapping_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_mapping(vxi, vc_data.device, vc_data.target,
++ vc_data.flags, 0);
++}
++
++
++#ifdef CONFIG_COMPAT
++
++int vc_set_mapping_x32(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_mapping_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_mapping(vxi, compat_ptr(vc_data.device_ptr),
++ compat_ptr(vc_data.target_ptr), vc_data.flags, 1);
++}
++
++int vc_unset_mapping_x32(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_mapping_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_mapping(vxi, compat_ptr(vc_data.device_ptr),
++ compat_ptr(vc_data.target_ptr), vc_data.flags, 0);
++}
++
++#endif /* CONFIG_COMPAT */
++
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/dlimit.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/dlimit.c
+--- linux-2.6.32.1/kernel/vserver/dlimit.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/dlimit.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,529 @@
++/*
++ * linux/kernel/vserver/dlimit.c
++ *
++ * Virtual Server: Context Disk Limits
++ *
++ * Copyright (C) 2004-2009 Herbert Pötzl
++ *
++ * V0.01 initial version
++ * V0.02 compat32 splitup
++ * V0.03 extended interface
++ *
++ */
++
++#include <linux/statfs.h>
++#include <linux/sched.h>
++#include <linux/namei.h>
++#include <linux/vs_tag.h>
++#include <linux/vs_dlimit.h>
++#include <linux/vserver/dlimit_cmd.h>
++
++#include <asm/uaccess.h>
++
++/* __alloc_dl_info()
++
++ * allocate an initialized dl_info struct
++ * doesn't make it visible (hash) */
++
++static struct dl_info *__alloc_dl_info(struct super_block *sb, tag_t tag)
++{
++ struct dl_info *new = NULL;
++
++ vxdprintk(VXD_CBIT(dlim, 5),
++ "alloc_dl_info(%p,%d)*", sb, tag);
++
++ /* would this benefit from a slab cache? */
++ new = kmalloc(sizeof(struct dl_info), GFP_KERNEL);
++ if (!new)
++ return 0;
++
++ memset(new, 0, sizeof(struct dl_info));
++ new->dl_tag = tag;
++ new->dl_sb = sb;
++ INIT_RCU_HEAD(&new->dl_rcu);
++ INIT_HLIST_NODE(&new->dl_hlist);
++ spin_lock_init(&new->dl_lock);
++ atomic_set(&new->dl_refcnt, 0);
++ atomic_set(&new->dl_usecnt, 0);
++
++ /* rest of init goes here */
++
++ vxdprintk(VXD_CBIT(dlim, 4),
++ "alloc_dl_info(%p,%d) = %p", sb, tag, new);
++ return new;
++}
++
++/* __dealloc_dl_info()
++
++ * final disposal of dl_info */
++
++static void __dealloc_dl_info(struct dl_info *dli)
++{
++ vxdprintk(VXD_CBIT(dlim, 4),
++ "dealloc_dl_info(%p)", dli);
++
++ dli->dl_hlist.next = LIST_POISON1;
++ dli->dl_tag = -1;
++ dli->dl_sb = 0;
++
++ BUG_ON(atomic_read(&dli->dl_usecnt));
++ BUG_ON(atomic_read(&dli->dl_refcnt));
++
++ kfree(dli);
++}
++
++
++/* hash table for dl_info hash */
++
++#define DL_HASH_SIZE 13
++
++struct hlist_head dl_info_hash[DL_HASH_SIZE];
++
++static spinlock_t dl_info_hash_lock = SPIN_LOCK_UNLOCKED;
++
++
++static inline unsigned int __hashval(struct super_block *sb, tag_t tag)
++{
++ return ((tag ^ (unsigned long)sb) % DL_HASH_SIZE);
++}
++
++
++
++/* __hash_dl_info()
++
++ * add the dli to the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __hash_dl_info(struct dl_info *dli)
++{
++ struct hlist_head *head;
++
++ vxdprintk(VXD_CBIT(dlim, 6),
++ "__hash_dl_info: %p[#%d]", dli, dli->dl_tag);
++ get_dl_info(dli);
++ head = &dl_info_hash[__hashval(dli->dl_sb, dli->dl_tag)];
++ hlist_add_head_rcu(&dli->dl_hlist, head);
++}
++
++/* __unhash_dl_info()
++
++ * remove the dli from the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __unhash_dl_info(struct dl_info *dli)
++{
++ vxdprintk(VXD_CBIT(dlim, 6),
++ "__unhash_dl_info: %p[#%d]", dli, dli->dl_tag);
++ hlist_del_rcu(&dli->dl_hlist);
++ put_dl_info(dli);
++}
++
++
++/* __lookup_dl_info()
++
++ * requires the rcu_read_lock()
++ * doesn't increment the dl_refcnt */
++
++static inline struct dl_info *__lookup_dl_info(struct super_block *sb, tag_t tag)
++{
++ struct hlist_head *head = &dl_info_hash[__hashval(sb, tag)];
++ struct hlist_node *pos;
++ struct dl_info *dli;
++
++ hlist_for_each_entry_rcu(dli, pos, head, dl_hlist) {
++
++ if (dli->dl_tag == tag && dli->dl_sb == sb) {
++ return dli;
++ }
++ }
++ return NULL;
++}
++
++
++struct dl_info *locate_dl_info(struct super_block *sb, tag_t tag)
++{
++ struct dl_info *dli;
++
++ rcu_read_lock();
++ dli = get_dl_info(__lookup_dl_info(sb, tag));
++ vxdprintk(VXD_CBIT(dlim, 7),
++ "locate_dl_info(%p,#%d) = %p", sb, tag, dli);
++ rcu_read_unlock();
++ return dli;
++}
++
++void rcu_free_dl_info(struct rcu_head *head)
++{
++ struct dl_info *dli = container_of(head, struct dl_info, dl_rcu);
++ int usecnt, refcnt;
++
++ BUG_ON(!dli || !head);
++
++ usecnt = atomic_read(&dli->dl_usecnt);
++ BUG_ON(usecnt < 0);
++
++ refcnt = atomic_read(&dli->dl_refcnt);
++ BUG_ON(refcnt < 0);
++
++ vxdprintk(VXD_CBIT(dlim, 3),
++ "rcu_free_dl_info(%p)", dli);
++ if (!usecnt)
++ __dealloc_dl_info(dli);
++ else
++ printk("!!! rcu didn't free\n");
++}
++
++
++
++
++static int do_addrem_dlimit(uint32_t id, const char __user *name,
++ uint32_t flags, int add)
++{
++ struct path path;
++ int ret;
++
++ ret = user_lpath(name, &path);
++ if (!ret) {
++ struct super_block *sb;
++ struct dl_info *dli;
++
++ ret = -EINVAL;
++ if (!path.dentry->d_inode)
++ goto out_release;
++ if (!(sb = path.dentry->d_inode->i_sb))
++ goto out_release;
++
++ if (add) {
++ dli = __alloc_dl_info(sb, id);
++ spin_lock(&dl_info_hash_lock);
++
++ ret = -EEXIST;
++ if (__lookup_dl_info(sb, id))
++ goto out_unlock;
++ __hash_dl_info(dli);
++ dli = NULL;
++ } else {
++ spin_lock(&dl_info_hash_lock);
++ dli = __lookup_dl_info(sb, id);
++
++ ret = -ESRCH;
++ if (!dli)
++ goto out_unlock;
++ __unhash_dl_info(dli);
++ }
++ ret = 0;
++ out_unlock:
++ spin_unlock(&dl_info_hash_lock);
++ if (add && dli)
++ __dealloc_dl_info(dli);
++ out_release:
++ path_put(&path);
++ }
++ return ret;
++}
++
++int vc_add_dlimit(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_base_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 1);
++}
++
++int vc_rem_dlimit(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_base_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 0);
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_add_dlimit_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_base_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_addrem_dlimit(id,
++ compat_ptr(vc_data.name_ptr), vc_data.flags, 1);
++}
++
++int vc_rem_dlimit_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_base_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_addrem_dlimit(id,
++ compat_ptr(vc_data.name_ptr), vc_data.flags, 0);
++}
++
++#endif /* CONFIG_COMPAT */
++
++
++static inline
++int do_set_dlimit(uint32_t id, const char __user *name,
++ uint32_t space_used, uint32_t space_total,
++ uint32_t inodes_used, uint32_t inodes_total,
++ uint32_t reserved, uint32_t flags)
++{
++ struct path path;
++ int ret;
++
++ ret = user_lpath(name, &path);
++ if (!ret) {
++ struct super_block *sb;
++ struct dl_info *dli;
++
++ ret = -EINVAL;
++ if (!path.dentry->d_inode)
++ goto out_release;
++ if (!(sb = path.dentry->d_inode->i_sb))
++ goto out_release;
++
++ /* sanity checks */
++ if ((reserved != CDLIM_KEEP &&
++ reserved > 100) ||
++ (inodes_used != CDLIM_KEEP &&
++ inodes_used > inodes_total) ||
++ (space_used != CDLIM_KEEP &&
++ space_used > space_total))
++ goto out_release;
++
++ ret = -ESRCH;
++ dli = locate_dl_info(sb, id);
++ if (!dli)
++ goto out_release;
++
++ spin_lock(&dli->dl_lock);
++
++ if (inodes_used != CDLIM_KEEP)
++ dli->dl_inodes_used = inodes_used;
++ if (inodes_total != CDLIM_KEEP)
++ dli->dl_inodes_total = inodes_total;
++ if (space_used != CDLIM_KEEP)
++ dli->dl_space_used = dlimit_space_32to64(
++ space_used, flags, DLIMS_USED);
++
++ if (space_total == CDLIM_INFINITY)
++ dli->dl_space_total = DLIM_INFINITY;
++ else if (space_total != CDLIM_KEEP)
++ dli->dl_space_total = dlimit_space_32to64(
++ space_total, flags, DLIMS_TOTAL);
++
++ if (reserved != CDLIM_KEEP)
++ dli->dl_nrlmult = (1 << 10) * (100 - reserved) / 100;
++
++ spin_unlock(&dli->dl_lock);
++
++ put_dl_info(dli);
++ ret = 0;
++
++ out_release:
++ path_put(&path);
++ }
++ return ret;
++}
++
++int vc_set_dlimit(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_dlimit(id, vc_data.name,
++ vc_data.space_used, vc_data.space_total,
++ vc_data.inodes_used, vc_data.inodes_total,
++ vc_data.reserved, vc_data.flags);
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_set_dlimit_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_dlimit(id, compat_ptr(vc_data.name_ptr),
++ vc_data.space_used, vc_data.space_total,
++ vc_data.inodes_used, vc_data.inodes_total,
++ vc_data.reserved, vc_data.flags);
++}
++
++#endif /* CONFIG_COMPAT */
++
++
++static inline
++int do_get_dlimit(uint32_t id, const char __user *name,
++ uint32_t *space_used, uint32_t *space_total,
++ uint32_t *inodes_used, uint32_t *inodes_total,
++ uint32_t *reserved, uint32_t *flags)
++{
++ struct path path;
++ int ret;
++
++ ret = user_lpath(name, &path);
++ if (!ret) {
++ struct super_block *sb;
++ struct dl_info *dli;
++
++ ret = -EINVAL;
++ if (!path.dentry->d_inode)
++ goto out_release;
++ if (!(sb = path.dentry->d_inode->i_sb))
++ goto out_release;
++
++ ret = -ESRCH;
++ dli = locate_dl_info(sb, id);
++ if (!dli)
++ goto out_release;
++
++ spin_lock(&dli->dl_lock);
++ *inodes_used = dli->dl_inodes_used;
++ *inodes_total = dli->dl_inodes_total;
++
++ *space_used = dlimit_space_64to32(
++ dli->dl_space_used, flags, DLIMS_USED);
++
++ if (dli->dl_space_total == DLIM_INFINITY)
++ *space_total = CDLIM_INFINITY;
++ else
++ *space_total = dlimit_space_64to32(
++ dli->dl_space_total, flags, DLIMS_TOTAL);
++
++ *reserved = 100 - ((dli->dl_nrlmult * 100 + 512) >> 10);
++ spin_unlock(&dli->dl_lock);
++
++ put_dl_info(dli);
++ ret = -EFAULT;
++
++ ret = 0;
++ out_release:
++ path_put(&path);
++ }
++ return ret;
++}
++
++
++int vc_get_dlimit(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_v0 vc_data;
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_get_dlimit(id, vc_data.name,
++ &vc_data.space_used, &vc_data.space_total,
++ &vc_data.inodes_used, &vc_data.inodes_total,
++ &vc_data.reserved, &vc_data.flags);
++ if (ret)
++ return ret;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_get_dlimit_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_v0_x32 vc_data;
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_get_dlimit(id, compat_ptr(vc_data.name_ptr),
++ &vc_data.space_used, &vc_data.space_total,
++ &vc_data.inodes_used, &vc_data.inodes_total,
++ &vc_data.reserved, &vc_data.flags);
++ if (ret)
++ return ret;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++#endif /* CONFIG_COMPAT */
++
++
++void vx_vsi_statfs(struct super_block *sb, struct kstatfs *buf)
++{
++ struct dl_info *dli;
++ __u64 blimit, bfree, bavail;
++ __u32 ifree;
++
++ dli = locate_dl_info(sb, dx_current_tag());
++ if (!dli)
++ return;
++
++ spin_lock(&dli->dl_lock);
++ if (dli->dl_inodes_total == (unsigned long)DLIM_INFINITY)
++ goto no_ilim;
++
++ /* reduce max inodes available to limit */
++ if (buf->f_files > dli->dl_inodes_total)
++ buf->f_files = dli->dl_inodes_total;
++
++ ifree = dli->dl_inodes_total - dli->dl_inodes_used;
++ /* reduce free inodes to min */
++ if (ifree < buf->f_ffree)
++ buf->f_ffree = ifree;
++
++no_ilim:
++ if (dli->dl_space_total == DLIM_INFINITY)
++ goto no_blim;
++
++ blimit = dli->dl_space_total >> sb->s_blocksize_bits;
++
++ if (dli->dl_space_total < dli->dl_space_used)
++ bfree = 0;
++ else
++ bfree = (dli->dl_space_total - dli->dl_space_used)
++ >> sb->s_blocksize_bits;
++
++ bavail = ((dli->dl_space_total >> 10) * dli->dl_nrlmult);
++ if (bavail < dli->dl_space_used)
++ bavail = 0;
++ else
++ bavail = (bavail - dli->dl_space_used)
++ >> sb->s_blocksize_bits;
++
++ /* reduce max space available to limit */
++ if (buf->f_blocks > blimit)
++ buf->f_blocks = blimit;
++
++ /* reduce free space to min */
++ if (bfree < buf->f_bfree)
++ buf->f_bfree = bfree;
++
++ /* reduce avail space to min */
++ if (bavail < buf->f_bavail)
++ buf->f_bavail = bavail;
++
++no_blim:
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++
++ return;
++}
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(locate_dl_info);
++EXPORT_SYMBOL_GPL(rcu_free_dl_info);
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/helper.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/helper.c
+--- linux-2.6.32.1/kernel/vserver/helper.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/helper.c 2009-12-03 22:20:22.000000000 +0100
+@@ -0,0 +1,223 @@
++/*
++ * linux/kernel/vserver/helper.c
++ *
++ * Virtual Context Support
++ *
++ * Copyright (C) 2004-2007 Herbert Pötzl
++ *
++ * V0.01 basic helper
++ *
++ */
++
++#include <linux/kmod.h>
++#include <linux/reboot.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vserver/signal.h>
++
++
++char vshelper_path[255] = "/sbin/vshelper";
++
++
++static int do_vshelper(char *name, char *argv[], char *envp[], int sync)
++{
++ int ret;
++
++ if ((ret = call_usermodehelper(name, argv, envp, sync))) {
++ printk( KERN_WARNING
++ "%s: (%s %s) returned %s with %d\n",
++ name, argv[1], argv[2],
++ sync ? "sync" : "async", ret);
++ }
++ vxdprintk(VXD_CBIT(switch, 4),
++ "%s: (%s %s) returned %s with %d",
++ name, argv[1], argv[2], sync ? "sync" : "async", ret);
++ return ret;
++}
++
++/*
++ * vshelper path is set via /proc/sys
++ * invoked by vserver sys_reboot(), with
++ * the following arguments
++ *
++ * argv [0] = vshelper_path;
++ * argv [1] = action: "restart", "halt", "poweroff", ...
++ * argv [2] = context identifier
++ *
++ * envp [*] = type-specific parameters
++ */
++
++long vs_reboot_helper(struct vx_info *vxi, int cmd, void __user *arg)
++{
++ char id_buf[8], cmd_buf[16];
++ char uid_buf[16], pid_buf[16];
++ int ret;
++
++ char *argv[] = {vshelper_path, NULL, id_buf, 0};
++ char *envp[] = {"HOME=/", "TERM=linux",
++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin",
++ uid_buf, pid_buf, cmd_buf, 0};
++
++ if (vx_info_state(vxi, VXS_HELPER))
++ return -EAGAIN;
++ vxi->vx_state |= VXS_HELPER;
++
++ snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id);
++
++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++ snprintf(uid_buf, sizeof(uid_buf)-1, "VS_UID=%d", current_uid());
++ snprintf(pid_buf, sizeof(pid_buf)-1, "VS_PID=%d", current->pid);
++
++ switch (cmd) {
++ case LINUX_REBOOT_CMD_RESTART:
++ argv[1] = "restart";
++ break;
++
++ case LINUX_REBOOT_CMD_HALT:
++ argv[1] = "halt";
++ break;
++
++ case LINUX_REBOOT_CMD_POWER_OFF:
++ argv[1] = "poweroff";
++ break;
++
++ case LINUX_REBOOT_CMD_SW_SUSPEND:
++ argv[1] = "swsusp";
++ break;
++
++ case LINUX_REBOOT_CMD_OOM:
++ argv[1] = "oom";
++ break;
++
++ default:
++ vxi->vx_state &= ~VXS_HELPER;
++ return 0;
++ }
++
++ ret = do_vshelper(vshelper_path, argv, envp, 0);
++ vxi->vx_state &= ~VXS_HELPER;
++ __wakeup_vx_info(vxi);
++ return (ret) ? -EPERM : 0;
++}
++
++
++long vs_reboot(unsigned int cmd, void __user *arg)
++{
++ struct vx_info *vxi = current_vx_info();
++ long ret = 0;
++
++ vxdprintk(VXD_CBIT(misc, 5),
++ "vs_reboot(%p[#%d],%u)",
++ vxi, vxi ? vxi->vx_id : 0, cmd);
++
++ ret = vs_reboot_helper(vxi, cmd, arg);
++ if (ret)
++ return ret;
++
++ vxi->reboot_cmd = cmd;
++ if (vx_info_flags(vxi, VXF_REBOOT_KILL, 0)) {
++ switch (cmd) {
++ case LINUX_REBOOT_CMD_RESTART:
++ case LINUX_REBOOT_CMD_HALT:
++ case LINUX_REBOOT_CMD_POWER_OFF:
++ vx_info_kill(vxi, 0, SIGKILL);
++ vx_info_kill(vxi, 1, SIGKILL);
++ default:
++ break;
++ }
++ }
++ return 0;
++}
++
++long vs_oom_action(unsigned int cmd)
++{
++ struct vx_info *vxi = current_vx_info();
++ long ret = 0;
++
++ vxdprintk(VXD_CBIT(misc, 5),
++ "vs_oom_action(%p[#%d],%u)",
++ vxi, vxi ? vxi->vx_id : 0, cmd);
++
++ ret = vs_reboot_helper(vxi, cmd, NULL);
++ if (ret)
++ return ret;
++
++ vxi->reboot_cmd = cmd;
++ if (vx_info_flags(vxi, VXF_REBOOT_KILL, 0)) {
++ vx_info_kill(vxi, 0, SIGKILL);
++ vx_info_kill(vxi, 1, SIGKILL);
++ }
++ return 0;
++}
++
++/*
++ * argv [0] = vshelper_path;
++ * argv [1] = action: "startup", "shutdown"
++ * argv [2] = context identifier
++ *
++ * envp [*] = type-specific parameters
++ */
++
++long vs_state_change(struct vx_info *vxi, unsigned int cmd)
++{
++ char id_buf[8], cmd_buf[16];
++ char *argv[] = {vshelper_path, NULL, id_buf, 0};
++ char *envp[] = {"HOME=/", "TERM=linux",
++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0};
++
++ if (!vx_info_flags(vxi, VXF_SC_HELPER, 0))
++ return 0;
++
++ snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id);
++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++
++ switch (cmd) {
++ case VSC_STARTUP:
++ argv[1] = "startup";
++ break;
++ case VSC_SHUTDOWN:
++ argv[1] = "shutdown";
++ break;
++ default:
++ return 0;
++ }
++
++ return do_vshelper(vshelper_path, argv, envp, 1);
++}
++
++
++/*
++ * argv [0] = vshelper_path;
++ * argv [1] = action: "netup", "netdown"
++ * argv [2] = context identifier
++ *
++ * envp [*] = type-specific parameters
++ */
++
++long vs_net_change(struct nx_info *nxi, unsigned int cmd)
++{
++ char id_buf[8], cmd_buf[16];
++ char *argv[] = {vshelper_path, NULL, id_buf, 0};
++ char *envp[] = {"HOME=/", "TERM=linux",
++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0};
++
++ if (!nx_info_flags(nxi, NXF_SC_HELPER, 0))
++ return 0;
++
++ snprintf(id_buf, sizeof(id_buf)-1, "%d", nxi->nx_id);
++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++
++ switch (cmd) {
++ case VSC_NETUP:
++ argv[1] = "netup";
++ break;
++ case VSC_NETDOWN:
++ argv[1] = "netdown";
++ break;
++ default:
++ return 0;
++ }
++
++ return do_vshelper(vshelper_path, argv, envp, 1);
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/history.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/history.c
+--- linux-2.6.32.1/kernel/vserver/history.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/history.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,258 @@
++/*
++ * kernel/vserver/history.c
++ *
++ * Virtual Context History Backtrace
++ *
++ * Copyright (C) 2004-2007 Herbert Pötzl
++ *
++ * V0.01 basic structure
++ * V0.02 hash/unhash and trace
++ * V0.03 preemption fixes
++ *
++ */
++
++#include <linux/module.h>
++#include <asm/uaccess.h>
++
++#include <linux/vserver/context.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/debug_cmd.h>
++#include <linux/vserver/history.h>
++
++
++#ifdef CONFIG_VSERVER_HISTORY
++#define VXH_SIZE CONFIG_VSERVER_HISTORY_SIZE
++#else
++#define VXH_SIZE 64
++#endif
++
++struct _vx_history {
++ unsigned int counter;
++
++ struct _vx_hist_entry entry[VXH_SIZE + 1];
++};
++
++
++DEFINE_PER_CPU(struct _vx_history, vx_history_buffer);
++
++unsigned volatile int vxh_active = 1;
++
++static atomic_t sequence = ATOMIC_INIT(0);
++
++
++/* vxh_advance()
++
++ * requires disabled preemption */
++
++struct _vx_hist_entry *vxh_advance(void *loc)
++{
++ unsigned int cpu = smp_processor_id();
++ struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu);
++ struct _vx_hist_entry *entry;
++ unsigned int index;
++
++ index = vxh_active ? (hist->counter++ % VXH_SIZE) : VXH_SIZE;
++ entry = &hist->entry[index];
++
++ entry->seq = atomic_inc_return(&sequence);
++ entry->loc = loc;
++ return entry;
++}
++
++EXPORT_SYMBOL_GPL(vxh_advance);
++
++
++#define VXH_LOC_FMTS "(#%04x,*%d):%p"
++
++#define VXH_LOC_ARGS(e) (e)->seq, cpu, (e)->loc
++
++
++#define VXH_VXI_FMTS "%p[#%d,%d.%d]"
++
++#define VXH_VXI_ARGS(e) (e)->vxi.ptr, \
++ (e)->vxi.ptr ? (e)->vxi.xid : 0, \
++ (e)->vxi.ptr ? (e)->vxi.usecnt : 0, \
++ (e)->vxi.ptr ? (e)->vxi.tasks : 0
++
++void vxh_dump_entry(struct _vx_hist_entry *e, unsigned cpu)
++{
++ switch (e->type) {
++ case VXH_THROW_OOPS:
++ printk( VXH_LOC_FMTS " oops \n", VXH_LOC_ARGS(e));
++ break;
++
++ case VXH_GET_VX_INFO:
++ case VXH_PUT_VX_INFO:
++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_GET_VX_INFO) ? "get" : "put",
++ VXH_VXI_ARGS(e));
++ break;
++
++ case VXH_INIT_VX_INFO:
++ case VXH_SET_VX_INFO:
++ case VXH_CLR_VX_INFO:
++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_INIT_VX_INFO) ? "init" :
++ ((e->type == VXH_SET_VX_INFO) ? "set" : "clr"),
++ VXH_VXI_ARGS(e), e->sc.data);
++ break;
++
++ case VXH_CLAIM_VX_INFO:
++ case VXH_RELEASE_VX_INFO:
++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_CLAIM_VX_INFO) ? "claim" : "release",
++ VXH_VXI_ARGS(e), e->sc.data);
++ break;
++
++ case VXH_ALLOC_VX_INFO:
++ case VXH_DEALLOC_VX_INFO:
++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_ALLOC_VX_INFO) ? "alloc" : "dealloc",
++ VXH_VXI_ARGS(e));
++ break;
++
++ case VXH_HASH_VX_INFO:
++ case VXH_UNHASH_VX_INFO:
++ printk( VXH_LOC_FMTS " __%s_vx_info " VXH_VXI_FMTS "\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_HASH_VX_INFO) ? "hash" : "unhash",
++ VXH_VXI_ARGS(e));
++ break;
++
++ case VXH_LOC_VX_INFO:
++ case VXH_LOOKUP_VX_INFO:
++ case VXH_CREATE_VX_INFO:
++ printk( VXH_LOC_FMTS " __%s_vx_info [#%d] -> " VXH_VXI_FMTS "\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_CREATE_VX_INFO) ? "create" :
++ ((e->type == VXH_LOC_VX_INFO) ? "loc" : "lookup"),
++ e->ll.arg, VXH_VXI_ARGS(e));
++ break;
++ }
++}
++
++static void __vxh_dump_history(void)
++{
++ unsigned int i, cpu;
++
++ printk("History:\tSEQ: %8x\tNR_CPUS: %d\n",
++ atomic_read(&sequence), NR_CPUS);
++
++ for (i = 0; i < VXH_SIZE; i++) {
++ for_each_online_cpu(cpu) {
++ struct _vx_history *hist =
++ &per_cpu(vx_history_buffer, cpu);
++ unsigned int index = (hist->counter - i) % VXH_SIZE;
++ struct _vx_hist_entry *entry = &hist->entry[index];
++
++ vxh_dump_entry(entry, cpu);
++ }
++ }
++}
++
++void vxh_dump_history(void)
++{
++ vxh_active = 0;
++#ifdef CONFIG_SMP
++ local_irq_enable();
++ smp_send_stop();
++ local_irq_disable();
++#endif
++ __vxh_dump_history();
++}
++
++
++/* vserver syscall commands below here */
++
++
++int vc_dump_history(uint32_t id)
++{
++ vxh_active = 0;
++ __vxh_dump_history();
++ vxh_active = 1;
++
++ return 0;
++}
++
++
++int do_read_history(struct __user _vx_hist_entry *data,
++ int cpu, uint32_t *index, uint32_t *count)
++{
++ int pos, ret = 0;
++ struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu);
++ int end = hist->counter;
++ int start = end - VXH_SIZE + 2;
++ int idx = *index;
++
++ /* special case: get current pos */
++ if (!*count) {
++ *index = end;
++ return 0;
++ }
++
++ /* have we lost some data? */
++ if (idx < start)
++ idx = start;
++
++ for (pos = 0; (pos < *count) && (idx < end); pos++, idx++) {
++ struct _vx_hist_entry *entry =
++ &hist->entry[idx % VXH_SIZE];
++
++ /* send entry to userspace */
++ ret = copy_to_user(&data[pos], entry, sizeof(*entry));
++ if (ret)
++ break;
++ }
++ /* save new index and count */
++ *index = idx;
++ *count = pos;
++ return ret ? ret : (*index < end);
++}
++
++int vc_read_history(uint32_t id, void __user *data)
++{
++ struct vcmd_read_history_v0 vc_data;
++ int ret;
++
++ if (id >= NR_CPUS)
++ return -EINVAL;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_read_history((struct __user _vx_hist_entry *)vc_data.data,
++ id, &vc_data.index, &vc_data.count);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return ret;
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_read_history_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_read_history_v0_x32 vc_data;
++ int ret;
++
++ if (id >= NR_CPUS)
++ return -EINVAL;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_read_history((struct __user _vx_hist_entry *)
++ compat_ptr(vc_data.data_ptr),
++ id, &vc_data.index, &vc_data.count);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return ret;
++}
++
++#endif /* CONFIG_COMPAT */
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/inet.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/inet.c
+--- linux-2.6.32.1/kernel/vserver/inet.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/inet.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,225 @@
++
++#include <linux/in.h>
++#include <linux/inetdevice.h>
++#include <linux/vs_inet.h>
++#include <linux/vs_inet6.h>
++#include <linux/vserver/debug.h>
++#include <net/route.h>
++#include <net/addrconf.h>
++
++
++int nx_v4_addr_conflict(struct nx_info *nxi1, struct nx_info *nxi2)
++{
++ int ret = 0;
++
++ if (!nxi1 || !nxi2 || nxi1 == nxi2)
++ ret = 1;
++ else {
++ struct nx_addr_v4 *ptr;
++
++ for (ptr = &nxi1->v4; ptr; ptr = ptr->next) {
++ if (v4_nx_addr_in_nx_info(nxi2, ptr, -1)) {
++ ret = 1;
++ break;
++ }
++ }
++ }
++
++ vxdprintk(VXD_CBIT(net, 2),
++ "nx_v4_addr_conflict(%p,%p): %d",
++ nxi1, nxi2, ret);
++
++ return ret;
++}
++
++
++#ifdef CONFIG_IPV6
++
++int nx_v6_addr_conflict(struct nx_info *nxi1, struct nx_info *nxi2)
++{
++ int ret = 0;
++
++ if (!nxi1 || !nxi2 || nxi1 == nxi2)
++ ret = 1;
++ else {
++ struct nx_addr_v6 *ptr;
++
++ for (ptr = &nxi1->v6; ptr; ptr = ptr->next) {
++ if (v6_nx_addr_in_nx_info(nxi2, ptr, -1)) {
++ ret = 1;
++ break;
++ }
++ }
++ }
++
++ vxdprintk(VXD_CBIT(net, 2),
++ "nx_v6_addr_conflict(%p,%p): %d",
++ nxi1, nxi2, ret);
++
++ return ret;
++}
++
++#endif
++
++int v4_dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
++{
++ struct in_device *in_dev;
++ struct in_ifaddr **ifap;
++ struct in_ifaddr *ifa;
++ int ret = 0;
++
++ if (!dev)
++ goto out;
++ in_dev = in_dev_get(dev);
++ if (!in_dev)
++ goto out;
++
++ for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
++ ifap = &ifa->ifa_next) {
++ if (v4_addr_in_nx_info(nxi, ifa->ifa_local, NXA_MASK_SHOW)) {
++ ret = 1;
++ break;
++ }
++ }
++ in_dev_put(in_dev);
++out:
++ return ret;
++}
++
++
++#ifdef CONFIG_IPV6
++
++int v6_dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
++{
++ struct inet6_dev *in_dev;
++ struct inet6_ifaddr **ifap;
++ struct inet6_ifaddr *ifa;
++ int ret = 0;
++
++ if (!dev)
++ goto out;
++ in_dev = in6_dev_get(dev);
++ if (!in_dev)
++ goto out;
++
++ for (ifap = &in_dev->addr_list; (ifa = *ifap) != NULL;
++ ifap = &ifa->if_next) {
++ if (v6_addr_in_nx_info(nxi, &ifa->addr, -1)) {
++ ret = 1;
++ break;
++ }
++ }
++ in6_dev_put(in_dev);
++out:
++ return ret;
++}
++
++#endif
++
++int dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
++{
++ int ret = 1;
++
++ if (!nxi)
++ goto out;
++ if (nxi->v4.type && v4_dev_in_nx_info(dev, nxi))
++ goto out;
++#ifdef CONFIG_IPV6
++ ret = 2;
++ if (nxi->v6.type && v6_dev_in_nx_info(dev, nxi))
++ goto out;
++#endif
++ ret = 0;
++out:
++ vxdprintk(VXD_CBIT(net, 3),
++ "dev_in_nx_info(%p,%p[#%d]) = %d",
++ dev, nxi, nxi ? nxi->nx_id : 0, ret);
++ return ret;
++}
++
++int ip_v4_find_src(struct net *net, struct nx_info *nxi,
++ struct rtable **rp, struct flowi *fl)
++{
++ if (!nxi)
++ return 0;
++
++ /* FIXME: handle lback only case */
++ if (!NX_IPV4(nxi))
++ return -EPERM;
++
++ vxdprintk(VXD_CBIT(net, 4),
++ "ip_v4_find_src(%p[#%u]) " NIPQUAD_FMT " -> " NIPQUAD_FMT,
++ nxi, nxi ? nxi->nx_id : 0,
++ NIPQUAD(fl->fl4_src), NIPQUAD(fl->fl4_dst));
++
++ /* single IP is unconditional */
++ if (nx_info_flags(nxi, NXF_SINGLE_IP, 0) &&
++ (fl->fl4_src == INADDR_ANY))
++ fl->fl4_src = nxi->v4.ip[0].s_addr;
++
++ if (fl->fl4_src == INADDR_ANY) {
++ struct nx_addr_v4 *ptr;
++ __be32 found = 0;
++ int err;
++
++ err = __ip_route_output_key(net, rp, fl);
++ if (!err) {
++ found = (*rp)->rt_src;
++ ip_rt_put(*rp);
++ vxdprintk(VXD_CBIT(net, 4),
++ "ip_v4_find_src(%p[#%u]) rok[%u]: " NIPQUAD_FMT,
++ nxi, nxi ? nxi->nx_id : 0, fl->oif, NIPQUAD(found));
++ if (v4_addr_in_nx_info(nxi, found, NXA_MASK_BIND))
++ goto found;
++ }
++
++ for (ptr = &nxi->v4; ptr; ptr = ptr->next) {
++ __be32 primary = ptr->ip[0].s_addr;
++ __be32 mask = ptr->mask.s_addr;
++ __be32 neta = primary & mask;
++
++ vxdprintk(VXD_CBIT(net, 4), "ip_v4_find_src(%p[#%u]) chk: "
++ NIPQUAD_FMT "/" NIPQUAD_FMT "/" NIPQUAD_FMT,
++ nxi, nxi ? nxi->nx_id : 0, NIPQUAD(primary),
++ NIPQUAD(mask), NIPQUAD(neta));
++ if ((found & mask) != neta)
++ continue;
++
++ fl->fl4_src = primary;
++ err = __ip_route_output_key(net, rp, fl);
++ vxdprintk(VXD_CBIT(net, 4),
++ "ip_v4_find_src(%p[#%u]) rok[%u]: " NIPQUAD_FMT,
++ nxi, nxi ? nxi->nx_id : 0, fl->oif, NIPQUAD(primary));
++ if (!err) {
++ found = (*rp)->rt_src;
++ ip_rt_put(*rp);
++ if (found == primary)
++ goto found;
++ }
++ }
++ /* still no source ip? */
++ found = ipv4_is_loopback(fl->fl4_dst)
++ ? IPI_LOOPBACK : nxi->v4.ip[0].s_addr;
++ found:
++ /* assign src ip to flow */
++ fl->fl4_src = found;
++
++ } else {
++ if (!v4_addr_in_nx_info(nxi, fl->fl4_src, NXA_MASK_BIND))
++ return -EPERM;
++ }
++
++ if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0)) {
++ if (ipv4_is_loopback(fl->fl4_dst))
++ fl->fl4_dst = nxi->v4_lback.s_addr;
++ if (ipv4_is_loopback(fl->fl4_src))
++ fl->fl4_src = nxi->v4_lback.s_addr;
++ } else if (ipv4_is_loopback(fl->fl4_dst) &&
++ !nx_info_flags(nxi, NXF_LBACK_ALLOW, 0))
++ return -EPERM;
++
++ return 0;
++}
++
++EXPORT_SYMBOL_GPL(ip_v4_find_src);
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/init.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/init.c
+--- linux-2.6.32.1/kernel/vserver/init.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/init.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,45 @@
++/*
++ * linux/kernel/init.c
++ *
++ * Virtual Server Init
++ *
++ * Copyright (C) 2004-2007 Herbert Pötzl
++ *
++ * V0.01 basic structure
++ *
++ */
++
++#include <linux/init.h>
++
++int vserver_register_sysctl(void);
++void vserver_unregister_sysctl(void);
++
++
++static int __init init_vserver(void)
++{
++ int ret = 0;
++
++#ifdef CONFIG_VSERVER_DEBUG
++ vserver_register_sysctl();
++#endif
++ return ret;
++}
++
++
++static void __exit exit_vserver(void)
++{
++
++#ifdef CONFIG_VSERVER_DEBUG
++ vserver_unregister_sysctl();
++#endif
++ return;
++}
++
++/* FIXME: GFP_ZONETYPES gone
++long vx_slab[GFP_ZONETYPES]; */
++long vx_area;
++
++
++module_init(init_vserver);
++module_exit(exit_vserver);
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/inode.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/inode.c
+--- linux-2.6.32.1/kernel/vserver/inode.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/inode.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,433 @@
++/*
++ * linux/kernel/vserver/inode.c
++ *
++ * Virtual Server: File System Support
++ *
++ * Copyright (C) 2004-2007 Herbert Pötzl
++ *
++ * V0.01 separated from vcontext V0.05
++ * V0.02 moved to tag (instead of xid)
++ *
++ */
++
++#include <linux/tty.h>
++#include <linux/proc_fs.h>
++#include <linux/devpts_fs.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/mount.h>
++#include <linux/parser.h>
++#include <linux/namei.h>
++#include <linux/vserver/inode.h>
++#include <linux/vserver/inode_cmd.h>
++#include <linux/vs_base.h>
++#include <linux/vs_tag.h>
++
++#include <asm/uaccess.h>
++
++
++static int __vc_get_iattr(struct inode *in, uint32_t *tag, uint32_t *flags, uint32_t *mask)
++{
++ struct proc_dir_entry *entry;
++
++ if (!in || !in->i_sb)
++ return -ESRCH;
++
++ *flags = IATTR_TAG
++ | (IS_IMMUTABLE(in) ? IATTR_IMMUTABLE : 0)
++ | (IS_IXUNLINK(in) ? IATTR_IXUNLINK : 0)
++ | (IS_BARRIER(in) ? IATTR_BARRIER : 0)
++ | (IS_COW(in) ? IATTR_COW : 0);
++ *mask = IATTR_IXUNLINK | IATTR_IMMUTABLE | IATTR_COW;
++
++ if (S_ISDIR(in->i_mode))
++ *mask |= IATTR_BARRIER;
++
++ if (IS_TAGGED(in)) {
++ *tag = in->i_tag;
++ *mask |= IATTR_TAG;
++ }
++
++ switch (in->i_sb->s_magic) {
++ case PROC_SUPER_MAGIC:
++ entry = PROC_I(in)->pde;
++
++ /* check for specific inodes? */
++ if (entry)
++ *mask |= IATTR_FLAGS;
++ if (entry)
++ *flags |= (entry->vx_flags & IATTR_FLAGS);
++ else
++ *flags |= (PROC_I(in)->vx_flags & IATTR_FLAGS);
++ break;
++
++ case DEVPTS_SUPER_MAGIC:
++ *tag = in->i_tag;
++ *mask |= IATTR_TAG;
++ break;
++
++ default:
++ break;
++ }
++ return 0;
++}
++
++int vc_get_iattr(void __user *data)
++{
++ struct path path;
++ struct vcmd_ctx_iattr_v1 vc_data = { .tag = -1 };
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = user_lpath(vc_data.name, &path);
++ if (!ret) {
++ ret = __vc_get_iattr(path.dentry->d_inode,
++ &vc_data.tag, &vc_data.flags, &vc_data.mask);
++ path_put(&path);
++ }
++ if (ret)
++ return ret;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ ret = -EFAULT;
++ return ret;
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_get_iattr_x32(void __user *data)
++{
++ struct path path;
++ struct vcmd_ctx_iattr_v1_x32 vc_data = { .tag = -1 };
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = user_lpath(compat_ptr(vc_data.name_ptr), &path);
++ if (!ret) {
++ ret = __vc_get_iattr(path.dentry->d_inode,
++ &vc_data.tag, &vc_data.flags, &vc_data.mask);
++ path_put(&path);
++ }
++ if (ret)
++ return ret;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ ret = -EFAULT;
++ return ret;
++}
++
++#endif /* CONFIG_COMPAT */
++
++
++int vc_fget_iattr(uint32_t fd, void __user *data)
++{
++ struct file *filp;
++ struct vcmd_ctx_fiattr_v0 vc_data = { .tag = -1 };
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ filp = fget(fd);
++ if (!filp || !filp->f_dentry || !filp->f_dentry->d_inode)
++ return -EBADF;
++
++ ret = __vc_get_iattr(filp->f_dentry->d_inode,
++ &vc_data.tag, &vc_data.flags, &vc_data.mask);
++
++ fput(filp);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ ret = -EFAULT;
++ return ret;
++}
++
++
++static int __vc_set_iattr(struct dentry *de, uint32_t *tag, uint32_t *flags, uint32_t *mask)
++{
++ struct inode *in = de->d_inode;
++ int error = 0, is_proc = 0, has_tag = 0;
++ struct iattr attr = { 0 };
++
++ if (!in || !in->i_sb)
++ return -ESRCH;
++
++ is_proc = (in->i_sb->s_magic == PROC_SUPER_MAGIC);
++ if ((*mask & IATTR_FLAGS) && !is_proc)
++ return -EINVAL;
++
++ has_tag = IS_TAGGED(in) ||
++ (in->i_sb->s_magic == DEVPTS_SUPER_MAGIC);
++ if ((*mask & IATTR_TAG) && !has_tag)
++ return -EINVAL;
++
++ mutex_lock(&in->i_mutex);
++ if (*mask & IATTR_TAG) {
++ attr.ia_tag = *tag;
++ attr.ia_valid |= ATTR_TAG;
++ }
++
++ if (*mask & IATTR_FLAGS) {
++ struct proc_dir_entry *entry = PROC_I(in)->pde;
++ unsigned int iflags = PROC_I(in)->vx_flags;
++
++ iflags = (iflags & ~(*mask & IATTR_FLAGS))
++ | (*flags & IATTR_FLAGS);
++ PROC_I(in)->vx_flags = iflags;
++ if (entry)
++ entry->vx_flags = iflags;
++ }
++
++ if (*mask & (IATTR_IMMUTABLE | IATTR_IXUNLINK |
++ IATTR_BARRIER | IATTR_COW)) {
++ int iflags = in->i_flags;
++ int vflags = in->i_vflags;
++
++ if (*mask & IATTR_IMMUTABLE) {
++ if (*flags & IATTR_IMMUTABLE)
++ iflags |= S_IMMUTABLE;
++ else
++ iflags &= ~S_IMMUTABLE;
++ }
++ if (*mask & IATTR_IXUNLINK) {
++ if (*flags & IATTR_IXUNLINK)
++ iflags |= S_IXUNLINK;
++ else
++ iflags &= ~S_IXUNLINK;
++ }
++ if (S_ISDIR(in->i_mode) && (*mask & IATTR_BARRIER)) {
++ if (*flags & IATTR_BARRIER)
++ vflags |= V_BARRIER;
++ else
++ vflags &= ~V_BARRIER;
++ }
++ if (S_ISREG(in->i_mode) && (*mask & IATTR_COW)) {
++ if (*flags & IATTR_COW)
++ vflags |= V_COW;
++ else
++ vflags &= ~V_COW;
++ }
++ if (in->i_op && in->i_op->sync_flags) {
++ error = in->i_op->sync_flags(in, iflags, vflags);
++ if (error)
++ goto out;
++ }
++ }
++
++ if (attr.ia_valid) {
++ if (in->i_op && in->i_op->setattr)
++ error = in->i_op->setattr(de, &attr);
++ else {
++ error = inode_change_ok(in, &attr);
++ if (!error)
++ error = inode_setattr(in, &attr);
++ }
++ }
++
++out:
++ mutex_unlock(&in->i_mutex);
++ return error;
++}
++
++int vc_set_iattr(void __user *data)
++{
++ struct path path;
++ struct vcmd_ctx_iattr_v1 vc_data;
++ int ret;
++
++ if (!capable(CAP_LINUX_IMMUTABLE))
++ return -EPERM;
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = user_lpath(vc_data.name, &path);
++ if (!ret) {
++ ret = __vc_set_iattr(path.dentry,
++ &vc_data.tag, &vc_data.flags, &vc_data.mask);
++ path_put(&path);
++ }
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ ret = -EFAULT;
++ return ret;
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_set_iattr_x32(void __user *data)
++{
++ struct path path;
++ struct vcmd_ctx_iattr_v1_x32 vc_data;
++ int ret;
++
++ if (!capable(CAP_LINUX_IMMUTABLE))
++ return -EPERM;
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = user_lpath(compat_ptr(vc_data.name_ptr), &path);
++ if (!ret) {
++ ret = __vc_set_iattr(path.dentry,
++ &vc_data.tag, &vc_data.flags, &vc_data.mask);
++ path_put(&path);
++ }
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ ret = -EFAULT;
++ return ret;
++}
++
++#endif /* CONFIG_COMPAT */
++
++int vc_fset_iattr(uint32_t fd, void __user *data)
++{
++ struct file *filp;
++ struct vcmd_ctx_fiattr_v0 vc_data;
++ int ret;
++
++ if (!capable(CAP_LINUX_IMMUTABLE))
++ return -EPERM;
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ filp = fget(fd);
++ if (!filp || !filp->f_dentry || !filp->f_dentry->d_inode)
++ return -EBADF;
++
++ ret = __vc_set_iattr(filp->f_dentry, &vc_data.tag,
++ &vc_data.flags, &vc_data.mask);
++
++ fput(filp);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return ret;
++}
++
++
++enum { Opt_notagcheck, Opt_tag, Opt_notag, Opt_tagid, Opt_err };
++
++static match_table_t tokens = {
++ {Opt_notagcheck, "notagcheck"},
++#ifdef CONFIG_PROPAGATE
++ {Opt_notag, "notag"},
++ {Opt_tag, "tag"},
++ {Opt_tagid, "tagid=%u"},
++#endif
++ {Opt_err, NULL}
++};
++
++
++static void __dx_parse_remove(char *string, char *opt)
++{
++ char *p = strstr(string, opt);
++ char *q = p;
++
++ if (p) {
++ while (*q != '\0' && *q != ',')
++ q++;
++ while (*q)
++ *p++ = *q++;
++ while (*p)
++ *p++ = '\0';
++ }
++}
++
++int dx_parse_tag(char *string, tag_t *tag, int remove, int *mnt_flags,
++ unsigned long *flags)
++{
++ int set = 0;
++ substring_t args[MAX_OPT_ARGS];
++ int token, option = 0;
++ char *s, *p, *opts;
++
++ if (!string)
++ return 0;
++ s = kstrdup(string, GFP_KERNEL | GFP_ATOMIC);
++ if (!s)
++ return 0;
++
++ opts = s;
++ while ((p = strsep(&opts, ",")) != NULL) {
++ token = match_token(p, tokens, args);
++
++ vxdprintk(VXD_CBIT(tag, 7),
++ "dx_parse_tag(»%s«): %d:#%d",
++ p, token, option);
++
++ switch (token) {
++#ifdef CONFIG_PROPAGATE
++ case Opt_tag:
++ if (tag)
++ *tag = 0;
++ if (remove)
++ __dx_parse_remove(s, "tag");
++ *mnt_flags |= MNT_TAGID;
++ set |= MNT_TAGID;
++ break;
++ case Opt_notag:
++ if (remove)
++ __dx_parse_remove(s, "notag");
++ *mnt_flags |= MNT_NOTAG;
++ set |= MNT_NOTAG;
++ break;
++ case Opt_tagid:
++ if (tag && !match_int(args, &option))
++ *tag = option;
++ if (remove)
++ __dx_parse_remove(s, "tagid");
++ *mnt_flags |= MNT_TAGID;
++ set |= MNT_TAGID;
++ break;
++#endif
++ case Opt_notagcheck:
++ if (remove)
++ __dx_parse_remove(s, "notagcheck");
++ *flags |= MS_NOTAGCHECK;
++ set |= MS_NOTAGCHECK;
++ break;
++ }
++ }
++ if (set)
++ strcpy(string, s);
++ kfree(s);
++ return set;
++}
++
++#ifdef CONFIG_PROPAGATE
++
++void __dx_propagate_tag(struct nameidata *nd, struct inode *inode)
++{
++ tag_t new_tag = 0;
++ struct vfsmount *mnt;
++ int propagate;
++
++ if (!nd)
++ return;
++ mnt = nd->path.mnt;
++ if (!mnt)
++ return;
++
++ propagate = (mnt->mnt_flags & MNT_TAGID);
++ if (propagate)
++ new_tag = mnt->mnt_tag;
++
++ vxdprintk(VXD_CBIT(tag, 7),
++ "dx_propagate_tag(%p[#%lu.%d]): %d,%d",
++ inode, inode->i_ino, inode->i_tag,
++ new_tag, (propagate) ? 1 : 0);
++
++ if (propagate)
++ inode->i_tag = new_tag;
++}
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(__dx_propagate_tag);
++
++#endif /* CONFIG_PROPAGATE */
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/Kconfig linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/Kconfig
+--- linux-2.6.32.1/kernel/vserver/Kconfig 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,251 @@
++#
++# Linux VServer configuration
++#
++
++menu "Linux VServer"
++
++config VSERVER_AUTO_LBACK
++ bool "Automatically Assign Loopback IP"
++ default y
++ help
++ Automatically assign a guest specific loopback
++ IP and add it to the kernel network stack on
++ startup.
++
++config VSERVER_AUTO_SINGLE
++ bool "Automatic Single IP Special Casing"
++ depends on EXPERIMENTAL
++ default y
++ help
++ This allows network contexts with a single IP to
++ automatically remap 0.0.0.0 bindings to that IP,
++ avoiding further network checks and improving
++ performance.
++
++ (note: such guests do not allow to change the ip
++ on the fly and do not show loopback addresses)
++
++config VSERVER_COWBL
++ bool "Enable COW Immutable Link Breaking"
++ default y
++ help
++ This enables the COW (Copy-On-Write) link break code.
++ It allows you to treat unified files like normal files
++ when writing to them (which will implicitely break the
++ link and create a copy of the unified file)
++
++config VSERVER_VTIME
++ bool "Enable Virtualized Guest Time"
++ depends on EXPERIMENTAL
++ default n
++ help
++ This enables per guest time offsets to allow for
++ adjusting the system clock individually per guest.
++ this adds some overhead to the time functions and
++ therefore should not be enabled without good reason.
++
++config VSERVER_DEVICE
++ bool "Enable Guest Device Mapping"
++ depends on EXPERIMENTAL
++ default n
++ help
++ This enables generic device remapping.
++
++config VSERVER_PROC_SECURE
++ bool "Enable Proc Security"
++ depends on PROC_FS
++ default y
++ help
++ This configures ProcFS security to initially hide
++ non-process entries for all contexts except the main and
++ spectator context (i.e. for all guests), which is a secure
++ default.
++
++ (note: on 1.2x the entries were visible by default)
++
++config VSERVER_HARDCPU
++ bool "Enable Hard CPU Limits"
++ default y
++ help
++ Activate the Hard CPU Limits
++
++ This will compile in code that allows the Token Bucket
++ Scheduler to put processes on hold when a context's
++ tokens are depleted (provided that its per-context
++ sched_hard flag is set).
++
++ Processes belonging to that context will not be able
++ to consume CPU resources again until a per-context
++ configured minimum of tokens has been reached.
++
++config VSERVER_IDLETIME
++ bool "Avoid idle CPUs by skipping Time"
++ depends on VSERVER_HARDCPU
++ default y
++ help
++ This option allows the scheduler to artificially
++ advance time (per cpu) when otherwise the idle
++ task would be scheduled, thus keeping the cpu
++ busy and sharing the available resources among
++ certain contexts.
++
++config VSERVER_IDLELIMIT
++ bool "Limit the IDLE task"
++ depends on VSERVER_HARDCPU
++ default n
++ help
++ Limit the idle slices, so the the next context
++ will be scheduled as soon as possible.
++
++ This might improve interactivity and latency, but
++ will also marginally increase scheduling overhead.
++
++choice
++ prompt "Persistent Inode Tagging"
++ default TAGGING_ID24
++ help
++ This adds persistent context information to filesystems
++ mounted with the tagxid option. Tagging is a requirement
++ for per-context disk limits and per-context quota.
++
++
++config TAGGING_NONE
++ bool "Disabled"
++ help
++ do not store per-context information in inodes.
++
++config TAGGING_UID16
++ bool "UID16/GID32"
++ help
++ reduces UID to 16 bit, but leaves GID at 32 bit.
++
++config TAGGING_GID16
++ bool "UID32/GID16"
++ help
++ reduces GID to 16 bit, but leaves UID at 32 bit.
++
++config TAGGING_ID24
++ bool "UID24/GID24"
++ help
++ uses the upper 8bit from UID and GID for XID tagging
++ which leaves 24bit for UID/GID each, which should be
++ more than sufficient for normal use.
++
++config TAGGING_INTERN
++ bool "UID32/GID32"
++ help
++ this uses otherwise reserved inode fields in the on
++ disk representation, which limits the use to a few
++ filesystems (currently ext2 and ext3)
++
++endchoice
++
++config TAG_NFSD
++ bool "Tag NFSD User Auth and Files"
++ default n
++ help
++ Enable this if you do want the in-kernel NFS
++ Server to use the tagging specified above.
++ (will require patched clients too)
++
++config VSERVER_PRIVACY
++ bool "Honor Privacy Aspects of Guests"
++ default n
++ help
++ When enabled, most context checks will disallow
++ access to structures assigned to a specific context,
++ like ptys or loop devices.
++
++config VSERVER_CONTEXTS
++ int "Maximum number of Contexts (1-65533)" if EMBEDDED
++ range 1 65533
++ default "768" if 64BIT
++ default "256"
++ help
++ This setting will optimize certain data structures
++ and memory allocations according to the expected
++ maximum.
++
++ note: this is not a strict upper limit.
++
++config VSERVER_WARN
++ bool "VServer Warnings"
++ default y
++ help
++ This enables various runtime warnings, which will
++ notify about potential manipulation attempts or
++ resource shortage. It is generally considered to
++ be a good idea to have that enabled.
++
++config VSERVER_DEBUG
++ bool "VServer Debugging Code"
++ default n
++ help
++ Set this to yes if you want to be able to activate
++ debugging output at runtime. It adds a very small
++ overhead to all vserver related functions and
++ increases the kernel size by about 20k.
++
++config VSERVER_HISTORY
++ bool "VServer History Tracing"
++ depends on VSERVER_DEBUG
++ default n
++ help
++ Set this to yes if you want to record the history of
++ linux-vserver activities, so they can be replayed in
++ the event of a kernel panic or oops.
++
++config VSERVER_HISTORY_SIZE
++ int "Per-CPU History Size (32-65536)"
++ depends on VSERVER_HISTORY
++ range 32 65536
++ default 64
++ help
++ This allows you to specify the number of entries in
++ the per-CPU history buffer.
++
++config VSERVER_MONITOR
++ bool "VServer Scheduling Monitor"
++ depends on VSERVER_DISABLED
++ default n
++ help
++ Set this to yes if you want to record the scheduling
++ decisions, so that they can be relayed to userspace
++ for detailed analysis.
++
++config VSERVER_MONITOR_SIZE
++ int "Per-CPU Monitor Queue Size (32-65536)"
++ depends on VSERVER_MONITOR
++ range 32 65536
++ default 1024
++ help
++ This allows you to specify the number of entries in
++ the per-CPU scheduling monitor buffer.
++
++config VSERVER_MONITOR_SYNC
++ int "Per-CPU Monitor Sync Interval (0-65536)"
++ depends on VSERVER_MONITOR
++ range 0 65536
++ default 256
++ help
++ This allows you to specify the interval in ticks
++ when a time sync entry is inserted.
++
++endmenu
++
++
++config VSERVER
++ bool
++ default y
++ select NAMESPACES
++ select UTS_NS
++ select IPC_NS
++ select USER_NS
++ select SYSVIPC
++
++config VSERVER_SECURITY
++ bool
++ depends on SECURITY
++ default y
++ select SECURITY_CAPABILITIES
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/limit.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/limit.c
+--- linux-2.6.32.1/kernel/vserver/limit.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/limit.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,333 @@
++/*
++ * linux/kernel/vserver/limit.c
++ *
++ * Virtual Server: Context Limits
++ *
++ * Copyright (C) 2004-2007 Herbert Pötzl
++ *
++ * V0.01 broken out from vcontext V0.05
++ * V0.02 changed vcmds to vxi arg
++ *
++ */
++
++#include <linux/sched.h>
++#include <linux/module.h>
++#include <linux/vs_limit.h>
++#include <linux/vserver/limit.h>
++#include <linux/vserver/limit_cmd.h>
++
++#include <asm/uaccess.h>
++
++
++const char *vlimit_name[NUM_LIMITS] = {
++ [RLIMIT_CPU] = "CPU",
++ [RLIMIT_RSS] = "RSS",
++ [RLIMIT_NPROC] = "NPROC",
++ [RLIMIT_NOFILE] = "NOFILE",
++ [RLIMIT_MEMLOCK] = "VML",
++ [RLIMIT_AS] = "VM",
++ [RLIMIT_LOCKS] = "LOCKS",
++ [RLIMIT_SIGPENDING] = "SIGP",
++ [RLIMIT_MSGQUEUE] = "MSGQ",
++
++ [VLIMIT_NSOCK] = "NSOCK",
++ [VLIMIT_OPENFD] = "OPENFD",
++ [VLIMIT_ANON] = "ANON",
++ [VLIMIT_SHMEM] = "SHMEM",
++ [VLIMIT_DENTRY] = "DENTRY",
++};
++
++EXPORT_SYMBOL_GPL(vlimit_name);
++
++#define MASK_ENTRY(x) (1 << (x))
++
++const struct vcmd_ctx_rlimit_mask_v0 vlimit_mask = {
++ /* minimum */
++ 0
++ , /* softlimit */
++ MASK_ENTRY( RLIMIT_RSS ) |
++ MASK_ENTRY( VLIMIT_ANON ) |
++ 0
++ , /* maximum */
++ MASK_ENTRY( RLIMIT_RSS ) |
++ MASK_ENTRY( RLIMIT_NPROC ) |
++ MASK_ENTRY( RLIMIT_NOFILE ) |
++ MASK_ENTRY( RLIMIT_MEMLOCK ) |
++ MASK_ENTRY( RLIMIT_AS ) |
++ MASK_ENTRY( RLIMIT_LOCKS ) |
++ MASK_ENTRY( RLIMIT_MSGQUEUE ) |
++
++ MASK_ENTRY( VLIMIT_NSOCK ) |
++ MASK_ENTRY( VLIMIT_OPENFD ) |
++ MASK_ENTRY( VLIMIT_ANON ) |
++ MASK_ENTRY( VLIMIT_SHMEM ) |
++ MASK_ENTRY( VLIMIT_DENTRY ) |
++ 0
++};
++ /* accounting only */
++uint32_t account_mask =
++ MASK_ENTRY( VLIMIT_SEMARY ) |
++ MASK_ENTRY( VLIMIT_NSEMS ) |
++ MASK_ENTRY( VLIMIT_MAPPED ) |
++ 0;
++
++
++static int is_valid_vlimit(int id)
++{
++ uint32_t mask = vlimit_mask.minimum |
++ vlimit_mask.softlimit | vlimit_mask.maximum;
++ return mask & (1 << id);
++}
++
++static int is_accounted_vlimit(int id)
++{
++ if (is_valid_vlimit(id))
++ return 1;
++ return account_mask & (1 << id);
++}
++
++
++static inline uint64_t vc_get_soft(struct vx_info *vxi, int id)
++{
++ rlim_t limit = __rlim_soft(&vxi->limit, id);
++ return VX_VLIM(limit);
++}
++
++static inline uint64_t vc_get_hard(struct vx_info *vxi, int id)
++{
++ rlim_t limit = __rlim_hard(&vxi->limit, id);
++ return VX_VLIM(limit);
++}
++
++static int do_get_rlimit(struct vx_info *vxi, uint32_t id,
++ uint64_t *minimum, uint64_t *softlimit, uint64_t *maximum)
++{
++ if (!is_valid_vlimit(id))
++ return -EINVAL;
++
++ if (minimum)
++ *minimum = CRLIM_UNSET;
++ if (softlimit)
++ *softlimit = vc_get_soft(vxi, id);
++ if (maximum)
++ *maximum = vc_get_hard(vxi, id);
++ return 0;
++}
++
++int vc_get_rlimit(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_rlimit_v0 vc_data;
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_get_rlimit(vxi, vc_data.id,
++ &vc_data.minimum, &vc_data.softlimit, &vc_data.maximum);
++ if (ret)
++ return ret;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++static int do_set_rlimit(struct vx_info *vxi, uint32_t id,
++ uint64_t minimum, uint64_t softlimit, uint64_t maximum)
++{
++ if (!is_valid_vlimit(id))
++ return -EINVAL;
++
++ if (maximum != CRLIM_KEEP)
++ __rlim_hard(&vxi->limit, id) = VX_RLIM(maximum);
++ if (softlimit != CRLIM_KEEP)
++ __rlim_soft(&vxi->limit, id) = VX_RLIM(softlimit);
++
++ /* clamp soft limit */
++ if (__rlim_soft(&vxi->limit, id) > __rlim_hard(&vxi->limit, id))
++ __rlim_soft(&vxi->limit, id) = __rlim_hard(&vxi->limit, id);
++
++ return 0;
++}
++
++int vc_set_rlimit(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_rlimit_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_rlimit(vxi, vc_data.id,
++ vc_data.minimum, vc_data.softlimit, vc_data.maximum);
++}
++
++#ifdef CONFIG_IA32_EMULATION
++
++int vc_set_rlimit_x32(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_rlimit_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_rlimit(vxi, vc_data.id,
++ vc_data.minimum, vc_data.softlimit, vc_data.maximum);
++}
++
++int vc_get_rlimit_x32(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_rlimit_v0_x32 vc_data;
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_get_rlimit(vxi, vc_data.id,
++ &vc_data.minimum, &vc_data.softlimit, &vc_data.maximum);
++ if (ret)
++ return ret;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++#endif /* CONFIG_IA32_EMULATION */
++
++
++int vc_get_rlimit_mask(uint32_t id, void __user *data)
++{
++ if (copy_to_user(data, &vlimit_mask, sizeof(vlimit_mask)))
++ return -EFAULT;
++ return 0;
++}
++
++
++static inline void vx_reset_hits(struct _vx_limit *limit)
++{
++ int lim;
++
++ for (lim = 0; lim < NUM_LIMITS; lim++) {
++ atomic_set(&__rlim_lhit(limit, lim), 0);
++ }
++}
++
++int vc_reset_hits(struct vx_info *vxi, void __user *data)
++{
++ vx_reset_hits(&vxi->limit);
++ return 0;
++}
++
++static inline void vx_reset_minmax(struct _vx_limit *limit)
++{
++ rlim_t value;
++ int lim;
++
++ for (lim = 0; lim < NUM_LIMITS; lim++) {
++ value = __rlim_get(limit, lim);
++ __rlim_rmax(limit, lim) = value;
++ __rlim_rmin(limit, lim) = value;
++ }
++}
++
++int vc_reset_minmax(struct vx_info *vxi, void __user *data)
++{
++ vx_reset_minmax(&vxi->limit);
++ return 0;
++}
++
++
++int vc_rlimit_stat(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_rlimit_stat_v0 vc_data;
++ struct _vx_limit *limit = &vxi->limit;
++ int id;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ id = vc_data.id;
++ if (!is_accounted_vlimit(id))
++ return -EINVAL;
++
++ vx_limit_fixup(limit, id);
++ vc_data.hits = atomic_read(&__rlim_lhit(limit, id));
++ vc_data.value = __rlim_get(limit, id);
++ vc_data.minimum = __rlim_rmin(limit, id);
++ vc_data.maximum = __rlim_rmax(limit, id);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++void vx_vsi_meminfo(struct sysinfo *val)
++{
++ struct vx_info *vxi = current_vx_info();
++ unsigned long totalram, freeram;
++ rlim_t v;
++
++ /* we blindly accept the max */
++ v = __rlim_soft(&vxi->limit, RLIMIT_RSS);
++ totalram = (v != RLIM_INFINITY) ? v : val->totalram;
++
++ /* total minus used equals free */
++ v = __vx_cres_array_fixup(&vxi->limit, VLA_RSS);
++ freeram = (v < totalram) ? totalram - v : 0;
++
++ val->totalram = totalram;
++ val->freeram = freeram;
++ val->bufferram = 0;
++ val->totalhigh = 0;
++ val->freehigh = 0;
++ return;
++}
++
++void vx_vsi_swapinfo(struct sysinfo *val)
++{
++ struct vx_info *vxi = current_vx_info();
++ unsigned long totalswap, freeswap;
++ rlim_t v, w;
++
++ v = __rlim_soft(&vxi->limit, RLIMIT_RSS);
++ if (v == RLIM_INFINITY) {
++ val->freeswap = val->totalswap;
++ return;
++ }
++
++ /* we blindly accept the max */
++ w = __rlim_hard(&vxi->limit, RLIMIT_RSS);
++ totalswap = (w != RLIM_INFINITY) ? (w - v) : val->totalswap;
++
++ /* currently 'used' swap */
++ w = __vx_cres_array_fixup(&vxi->limit, VLA_RSS);
++ w -= (w > v) ? v : w;
++
++ /* total minus used equals free */
++ freeswap = (w < totalswap) ? totalswap - w : 0;
++
++ val->totalswap = totalswap;
++ val->freeswap = freeswap;
++ return;
++}
++
++
++unsigned long vx_badness(struct task_struct *task, struct mm_struct *mm)
++{
++ struct vx_info *vxi = mm->mm_vx_info;
++ unsigned long points;
++ rlim_t v, w;
++
++ if (!vxi)
++ return 0;
++
++ points = vxi->vx_badness_bias;
++
++ v = __vx_cres_array_fixup(&vxi->limit, VLA_RSS);
++ w = __rlim_soft(&vxi->limit, RLIMIT_RSS);
++ points += (v > w) ? (v - w) : 0;
++
++ return points;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/limit_init.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/limit_init.h
+--- linux-2.6.32.1/kernel/vserver/limit_init.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/limit_init.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,31 @@
++
++
++static inline void vx_info_init_limit(struct _vx_limit *limit)
++{
++ int lim;
++
++ for (lim = 0; lim < NUM_LIMITS; lim++) {
++ __rlim_soft(limit, lim) = RLIM_INFINITY;
++ __rlim_hard(limit, lim) = RLIM_INFINITY;
++ __rlim_set(limit, lim, 0);
++ atomic_set(&__rlim_lhit(limit, lim), 0);
++ __rlim_rmin(limit, lim) = 0;
++ __rlim_rmax(limit, lim) = 0;
++ }
++}
++
++static inline void vx_info_exit_limit(struct _vx_limit *limit)
++{
++ rlim_t value;
++ int lim;
++
++ for (lim = 0; lim < NUM_LIMITS; lim++) {
++ if ((1 << lim) & VLIM_NOCHECK)
++ continue;
++ value = __rlim_get(limit, lim);
++ vxwprintk_xid(value,
++ "!!! limit: %p[%s,%d] = %ld on exit.",
++ limit, vlimit_name[lim], lim, (long)value);
++ }
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/limit_proc.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/limit_proc.h
+--- linux-2.6.32.1/kernel/vserver/limit_proc.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/limit_proc.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,57 @@
++#ifndef _VX_LIMIT_PROC_H
++#define _VX_LIMIT_PROC_H
++
++#include <linux/vserver/limit_int.h>
++
++
++#define VX_LIMIT_FMT ":\t%8ld\t%8ld/%8ld\t%8lld/%8lld\t%6d\n"
++#define VX_LIMIT_TOP \
++ "Limit\t current\t min/max\t\t soft/hard\t\thits\n"
++
++#define VX_LIMIT_ARG(r) \
++ (unsigned long)__rlim_get(limit, r), \
++ (unsigned long)__rlim_rmin(limit, r), \
++ (unsigned long)__rlim_rmax(limit, r), \
++ VX_VLIM(__rlim_soft(limit, r)), \
++ VX_VLIM(__rlim_hard(limit, r)), \
++ atomic_read(&__rlim_lhit(limit, r))
++
++static inline int vx_info_proc_limit(struct _vx_limit *limit, char *buffer)
++{
++ vx_limit_fixup(limit, -1);
++ return sprintf(buffer, VX_LIMIT_TOP
++ "PROC" VX_LIMIT_FMT
++ "VM" VX_LIMIT_FMT
++ "VML" VX_LIMIT_FMT
++ "RSS" VX_LIMIT_FMT
++ "ANON" VX_LIMIT_FMT
++ "RMAP" VX_LIMIT_FMT
++ "FILES" VX_LIMIT_FMT
++ "OFD" VX_LIMIT_FMT
++ "LOCKS" VX_LIMIT_FMT
++ "SOCK" VX_LIMIT_FMT
++ "MSGQ" VX_LIMIT_FMT
++ "SHM" VX_LIMIT_FMT
++ "SEMA" VX_LIMIT_FMT
++ "SEMS" VX_LIMIT_FMT
++ "DENT" VX_LIMIT_FMT,
++ VX_LIMIT_ARG(RLIMIT_NPROC),
++ VX_LIMIT_ARG(RLIMIT_AS),
++ VX_LIMIT_ARG(RLIMIT_MEMLOCK),
++ VX_LIMIT_ARG(RLIMIT_RSS),
++ VX_LIMIT_ARG(VLIMIT_ANON),
++ VX_LIMIT_ARG(VLIMIT_MAPPED),
++ VX_LIMIT_ARG(RLIMIT_NOFILE),
++ VX_LIMIT_ARG(VLIMIT_OPENFD),
++ VX_LIMIT_ARG(RLIMIT_LOCKS),
++ VX_LIMIT_ARG(VLIMIT_NSOCK),
++ VX_LIMIT_ARG(RLIMIT_MSGQUEUE),
++ VX_LIMIT_ARG(VLIMIT_SHMEM),
++ VX_LIMIT_ARG(VLIMIT_SEMARY),
++ VX_LIMIT_ARG(VLIMIT_NSEMS),
++ VX_LIMIT_ARG(VLIMIT_DENTRY));
++}
++
++#endif /* _VX_LIMIT_PROC_H */
++
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/Makefile linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/Makefile
+--- linux-2.6.32.1/kernel/vserver/Makefile 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/Makefile 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,18 @@
++#
++# Makefile for the Linux vserver routines.
++#
++
++
++obj-y += vserver.o
++
++vserver-y := switch.o context.o space.o sched.o network.o inode.o \
++ limit.o cvirt.o cacct.o signal.o helper.o init.o \
++ dlimit.o tag.o
++
++vserver-$(CONFIG_INET) += inet.o
++vserver-$(CONFIG_PROC_FS) += proc.o
++vserver-$(CONFIG_VSERVER_DEBUG) += sysctl.o debug.o
++vserver-$(CONFIG_VSERVER_HISTORY) += history.o
++vserver-$(CONFIG_VSERVER_MONITOR) += monitor.o
++vserver-$(CONFIG_VSERVER_DEVICE) += device.o
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/monitor.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/monitor.c
+--- linux-2.6.32.1/kernel/vserver/monitor.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/monitor.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,138 @@
++/*
++ * kernel/vserver/monitor.c
++ *
++ * Virtual Context Scheduler Monitor
++ *
++ * Copyright (C) 2006-2007 Herbert Pötzl
++ *
++ * V0.01 basic design
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/jiffies.h>
++#include <asm/uaccess.h>
++#include <asm/atomic.h>
++
++#include <linux/vserver/monitor.h>
++#include <linux/vserver/debug_cmd.h>
++
++
++#ifdef CONFIG_VSERVER_MONITOR
++#define VXM_SIZE CONFIG_VSERVER_MONITOR_SIZE
++#else
++#define VXM_SIZE 64
++#endif
++
++struct _vx_monitor {
++ unsigned int counter;
++
++ struct _vx_mon_entry entry[VXM_SIZE+1];
++};
++
++
++DEFINE_PER_CPU(struct _vx_monitor, vx_monitor_buffer);
++
++unsigned volatile int vxm_active = 1;
++
++static atomic_t sequence = ATOMIC_INIT(0);
++
++
++/* vxm_advance()
++
++ * requires disabled preemption */
++
++struct _vx_mon_entry *vxm_advance(int cpu)
++{
++ struct _vx_monitor *mon = &per_cpu(vx_monitor_buffer, cpu);
++ struct _vx_mon_entry *entry;
++ unsigned int index;
++
++ index = vxm_active ? (mon->counter++ % VXM_SIZE) : VXM_SIZE;
++ entry = &mon->entry[index];
++
++ entry->ev.seq = atomic_inc_return(&sequence);
++ entry->ev.jif = jiffies;
++ return entry;
++}
++
++EXPORT_SYMBOL_GPL(vxm_advance);
++
++
++int do_read_monitor(struct __user _vx_mon_entry *data,
++ int cpu, uint32_t *index, uint32_t *count)
++{
++ int pos, ret = 0;
++ struct _vx_monitor *mon = &per_cpu(vx_monitor_buffer, cpu);
++ int end = mon->counter;
++ int start = end - VXM_SIZE + 2;
++ int idx = *index;
++
++ /* special case: get current pos */
++ if (!*count) {
++ *index = end;
++ return 0;
++ }
++
++ /* have we lost some data? */
++ if (idx < start)
++ idx = start;
++
++ for (pos = 0; (pos < *count) && (idx < end); pos++, idx++) {
++ struct _vx_mon_entry *entry =
++ &mon->entry[idx % VXM_SIZE];
++
++ /* send entry to userspace */
++ ret = copy_to_user(&data[pos], entry, sizeof(*entry));
++ if (ret)
++ break;
++ }
++ /* save new index and count */
++ *index = idx;
++ *count = pos;
++ return ret ? ret : (*index < end);
++}
++
++int vc_read_monitor(uint32_t id, void __user *data)
++{
++ struct vcmd_read_monitor_v0 vc_data;
++ int ret;
++
++ if (id >= NR_CPUS)
++ return -EINVAL;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_read_monitor((struct __user _vx_mon_entry *)vc_data.data,
++ id, &vc_data.index, &vc_data.count);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return ret;
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_read_monitor_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_read_monitor_v0_x32 vc_data;
++ int ret;
++
++ if (id >= NR_CPUS)
++ return -EINVAL;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_read_monitor((struct __user _vx_mon_entry *)
++ compat_ptr(vc_data.data_ptr),
++ id, &vc_data.index, &vc_data.count);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return ret;
++}
++
++#endif /* CONFIG_COMPAT */
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/network.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/network.c
+--- linux-2.6.32.1/kernel/vserver/network.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/network.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,864 @@
++/*
++ * linux/kernel/vserver/network.c
++ *
++ * Virtual Server: Network Support
++ *
++ * Copyright (C) 2003-2007 Herbert Pötzl
++ *
++ * V0.01 broken out from vcontext V0.05
++ * V0.02 cleaned up implementation
++ * V0.03 added equiv nx commands
++ * V0.04 switch to RCU based hash
++ * V0.05 and back to locking again
++ * V0.06 changed vcmds to nxi arg
++ * V0.07 have __create claim() the nxi
++ *
++ */
++
++#include <linux/err.h>
++#include <linux/slab.h>
++#include <linux/rcupdate.h>
++
++#include <linux/vs_network.h>
++#include <linux/vs_pid.h>
++#include <linux/vserver/network_cmd.h>
++
++
++atomic_t nx_global_ctotal = ATOMIC_INIT(0);
++atomic_t nx_global_cactive = ATOMIC_INIT(0);
++
++static struct kmem_cache *nx_addr_v4_cachep = NULL;
++static struct kmem_cache *nx_addr_v6_cachep = NULL;
++
++
++static int __init init_network(void)
++{
++ nx_addr_v4_cachep = kmem_cache_create("nx_v4_addr_cache",
++ sizeof(struct nx_addr_v4), 0,
++ SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
++ nx_addr_v6_cachep = kmem_cache_create("nx_v6_addr_cache",
++ sizeof(struct nx_addr_v6), 0,
++ SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
++ return 0;
++}
++
++
++/* __alloc_nx_addr_v4() */
++
++static inline struct nx_addr_v4 *__alloc_nx_addr_v4(void)
++{
++ struct nx_addr_v4 *nxa = kmem_cache_alloc(
++ nx_addr_v4_cachep, GFP_KERNEL);
++
++ if (!IS_ERR(nxa))
++ memset(nxa, 0, sizeof(*nxa));
++ return nxa;
++}
++
++/* __dealloc_nx_addr_v4() */
++
++static inline void __dealloc_nx_addr_v4(struct nx_addr_v4 *nxa)
++{
++ kmem_cache_free(nx_addr_v4_cachep, nxa);
++}
++
++/* __dealloc_nx_addr_v4_all() */
++
++static inline void __dealloc_nx_addr_v4_all(struct nx_addr_v4 *nxa)
++{
++ while (nxa) {
++ struct nx_addr_v4 *next = nxa->next;
++
++ __dealloc_nx_addr_v4(nxa);
++ nxa = next;
++ }
++}
++
++
++#ifdef CONFIG_IPV6
++
++/* __alloc_nx_addr_v6() */
++
++static inline struct nx_addr_v6 *__alloc_nx_addr_v6(void)
++{
++ struct nx_addr_v6 *nxa = kmem_cache_alloc(
++ nx_addr_v6_cachep, GFP_KERNEL);
++
++ if (!IS_ERR(nxa))
++ memset(nxa, 0, sizeof(*nxa));
++ return nxa;
++}
++
++/* __dealloc_nx_addr_v6() */
++
++static inline void __dealloc_nx_addr_v6(struct nx_addr_v6 *nxa)
++{
++ kmem_cache_free(nx_addr_v6_cachep, nxa);
++}
++
++/* __dealloc_nx_addr_v6_all() */
++
++static inline void __dealloc_nx_addr_v6_all(struct nx_addr_v6 *nxa)
++{
++ while (nxa) {
++ struct nx_addr_v6 *next = nxa->next;
++
++ __dealloc_nx_addr_v6(nxa);
++ nxa = next;
++ }
++}
++
++#endif /* CONFIG_IPV6 */
++
++/* __alloc_nx_info()
++
++ * allocate an initialized nx_info struct
++ * doesn't make it visible (hash) */
++
++static struct nx_info *__alloc_nx_info(nid_t nid)
++{
++ struct nx_info *new = NULL;
++
++ vxdprintk(VXD_CBIT(nid, 1), "alloc_nx_info(%d)*", nid);
++
++ /* would this benefit from a slab cache? */
++ new = kmalloc(sizeof(struct nx_info), GFP_KERNEL);
++ if (!new)
++ return 0;
++
++ memset(new, 0, sizeof(struct nx_info));
++ new->nx_id = nid;
++ INIT_HLIST_NODE(&new->nx_hlist);
++ atomic_set(&new->nx_usecnt, 0);
++ atomic_set(&new->nx_tasks, 0);
++ new->nx_state = 0;
++
++ new->nx_flags = NXF_INIT_SET;
++
++ /* rest of init goes here */
++
++ new->v4_lback.s_addr = htonl(INADDR_LOOPBACK);
++ new->v4_bcast.s_addr = htonl(INADDR_BROADCAST);
++
++ vxdprintk(VXD_CBIT(nid, 0),
++ "alloc_nx_info(%d) = %p", nid, new);
++ atomic_inc(&nx_global_ctotal);
++ return new;
++}
++
++/* __dealloc_nx_info()
++
++ * final disposal of nx_info */
++
++static void __dealloc_nx_info(struct nx_info *nxi)
++{
++ vxdprintk(VXD_CBIT(nid, 0),
++ "dealloc_nx_info(%p)", nxi);
++
++ nxi->nx_hlist.next = LIST_POISON1;
++ nxi->nx_id = -1;
++
++ BUG_ON(atomic_read(&nxi->nx_usecnt));
++ BUG_ON(atomic_read(&nxi->nx_tasks));
++
++ __dealloc_nx_addr_v4_all(nxi->v4.next);
++
++ nxi->nx_state |= NXS_RELEASED;
++ kfree(nxi);
++ atomic_dec(&nx_global_ctotal);
++}
++
++static void __shutdown_nx_info(struct nx_info *nxi)
++{
++ nxi->nx_state |= NXS_SHUTDOWN;
++ vs_net_change(nxi, VSC_NETDOWN);
++}
++
++/* exported stuff */
++
++void free_nx_info(struct nx_info *nxi)
++{
++ /* context shutdown is mandatory */
++ BUG_ON(nxi->nx_state != NXS_SHUTDOWN);
++
++ /* context must not be hashed */
++ BUG_ON(nxi->nx_state & NXS_HASHED);
++
++ BUG_ON(atomic_read(&nxi->nx_usecnt));
++ BUG_ON(atomic_read(&nxi->nx_tasks));
++
++ __dealloc_nx_info(nxi);
++}
++
++
++void __nx_set_lback(struct nx_info *nxi)
++{
++ int nid = nxi->nx_id;
++ __be32 lback = htonl(INADDR_LOOPBACK ^ ((nid & 0xFFFF) << 8));
++
++ nxi->v4_lback.s_addr = lback;
++}
++
++extern int __nx_inet_add_lback(__be32 addr);
++extern int __nx_inet_del_lback(__be32 addr);
++
++
++/* hash table for nx_info hash */
++
++#define NX_HASH_SIZE 13
++
++struct hlist_head nx_info_hash[NX_HASH_SIZE];
++
++static spinlock_t nx_info_hash_lock = SPIN_LOCK_UNLOCKED;
++
++
++static inline unsigned int __hashval(nid_t nid)
++{
++ return (nid % NX_HASH_SIZE);
++}
++
++
++
++/* __hash_nx_info()
++
++ * add the nxi to the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __hash_nx_info(struct nx_info *nxi)
++{
++ struct hlist_head *head;
++
++ vxd_assert_lock(&nx_info_hash_lock);
++ vxdprintk(VXD_CBIT(nid, 4),
++ "__hash_nx_info: %p[#%d]", nxi, nxi->nx_id);
++
++ /* context must not be hashed */
++ BUG_ON(nx_info_state(nxi, NXS_HASHED));
++
++ nxi->nx_state |= NXS_HASHED;
++ head = &nx_info_hash[__hashval(nxi->nx_id)];
++ hlist_add_head(&nxi->nx_hlist, head);
++ atomic_inc(&nx_global_cactive);
++}
++
++/* __unhash_nx_info()
++
++ * remove the nxi from the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __unhash_nx_info(struct nx_info *nxi)
++{
++ vxd_assert_lock(&nx_info_hash_lock);
++ vxdprintk(VXD_CBIT(nid, 4),
++ "__unhash_nx_info: %p[#%d.%d.%d]", nxi, nxi->nx_id,
++ atomic_read(&nxi->nx_usecnt), atomic_read(&nxi->nx_tasks));
++
++ /* context must be hashed */
++ BUG_ON(!nx_info_state(nxi, NXS_HASHED));
++ /* but without tasks */
++ BUG_ON(atomic_read(&nxi->nx_tasks));
++
++ nxi->nx_state &= ~NXS_HASHED;
++ hlist_del(&nxi->nx_hlist);
++ atomic_dec(&nx_global_cactive);
++}
++
++
++/* __lookup_nx_info()
++
++ * requires the hash_lock to be held
++ * doesn't increment the nx_refcnt */
++
++static inline struct nx_info *__lookup_nx_info(nid_t nid)
++{
++ struct hlist_head *head = &nx_info_hash[__hashval(nid)];
++ struct hlist_node *pos;
++ struct nx_info *nxi;
++
++ vxd_assert_lock(&nx_info_hash_lock);
++ hlist_for_each(pos, head) {
++ nxi = hlist_entry(pos, struct nx_info, nx_hlist);
++
++ if (nxi->nx_id == nid)
++ goto found;
++ }
++ nxi = NULL;
++found:
++ vxdprintk(VXD_CBIT(nid, 0),
++ "__lookup_nx_info(#%u): %p[#%u]",
++ nid, nxi, nxi ? nxi->nx_id : 0);
++ return nxi;
++}
++
++
++/* __create_nx_info()
++
++ * create the requested context
++ * get(), claim() and hash it */
++
++static struct nx_info *__create_nx_info(int id)
++{
++ struct nx_info *new, *nxi = NULL;
++
++ vxdprintk(VXD_CBIT(nid, 1), "create_nx_info(%d)*", id);
++
++ if (!(new = __alloc_nx_info(id)))
++ return ERR_PTR(-ENOMEM);
++
++ /* required to make dynamic xids unique */
++ spin_lock(&nx_info_hash_lock);
++
++ /* static context requested */
++ if ((nxi = __lookup_nx_info(id))) {
++ vxdprintk(VXD_CBIT(nid, 0),
++ "create_nx_info(%d) = %p (already there)", id, nxi);
++ if (nx_info_flags(nxi, NXF_STATE_SETUP, 0))
++ nxi = ERR_PTR(-EBUSY);
++ else
++ nxi = ERR_PTR(-EEXIST);
++ goto out_unlock;
++ }
++ /* new context */
++ vxdprintk(VXD_CBIT(nid, 0),
++ "create_nx_info(%d) = %p (new)", id, new);
++ claim_nx_info(new, NULL);
++ __nx_set_lback(new);
++ __hash_nx_info(get_nx_info(new));
++ nxi = new, new = NULL;
++
++out_unlock:
++ spin_unlock(&nx_info_hash_lock);
++ if (new)
++ __dealloc_nx_info(new);
++ return nxi;
++}
++
++
++
++/* exported stuff */
++
++
++void unhash_nx_info(struct nx_info *nxi)
++{
++ __shutdown_nx_info(nxi);
++ spin_lock(&nx_info_hash_lock);
++ __unhash_nx_info(nxi);
++ spin_unlock(&nx_info_hash_lock);
++}
++
++/* lookup_nx_info()
++
++ * search for a nx_info and get() it
++ * negative id means current */
++
++struct nx_info *lookup_nx_info(int id)
++{
++ struct nx_info *nxi = NULL;
++
++ if (id < 0) {
++ nxi = get_nx_info(current_nx_info());
++ } else if (id > 1) {
++ spin_lock(&nx_info_hash_lock);
++ nxi = get_nx_info(__lookup_nx_info(id));
++ spin_unlock(&nx_info_hash_lock);
++ }
++ return nxi;
++}
++
++/* nid_is_hashed()
++
++ * verify that nid is still hashed */
++
++int nid_is_hashed(nid_t nid)
++{
++ int hashed;
++
++ spin_lock(&nx_info_hash_lock);
++ hashed = (__lookup_nx_info(nid) != NULL);
++ spin_unlock(&nx_info_hash_lock);
++ return hashed;
++}
++
++
++#ifdef CONFIG_PROC_FS
++
++/* get_nid_list()
++
++ * get a subset of hashed nids for proc
++ * assumes size is at least one */
++
++int get_nid_list(int index, unsigned int *nids, int size)
++{
++ int hindex, nr_nids = 0;
++
++ /* only show current and children */
++ if (!nx_check(0, VS_ADMIN | VS_WATCH)) {
++ if (index > 0)
++ return 0;
++ nids[nr_nids] = nx_current_nid();
++ return 1;
++ }
++
++ for (hindex = 0; hindex < NX_HASH_SIZE; hindex++) {
++ struct hlist_head *head = &nx_info_hash[hindex];
++ struct hlist_node *pos;
++
++ spin_lock(&nx_info_hash_lock);
++ hlist_for_each(pos, head) {
++ struct nx_info *nxi;
++
++ if (--index > 0)
++ continue;
++
++ nxi = hlist_entry(pos, struct nx_info, nx_hlist);
++ nids[nr_nids] = nxi->nx_id;
++ if (++nr_nids >= size) {
++ spin_unlock(&nx_info_hash_lock);
++ goto out;
++ }
++ }
++ /* keep the lock time short */
++ spin_unlock(&nx_info_hash_lock);
++ }
++out:
++ return nr_nids;
++}
++#endif
++
++
++/*
++ * migrate task to new network
++ * gets nxi, puts old_nxi on change
++ */
++
++int nx_migrate_task(struct task_struct *p, struct nx_info *nxi)
++{
++ struct nx_info *old_nxi;
++ int ret = 0;
++
++ if (!p || !nxi)
++ BUG();
++
++ vxdprintk(VXD_CBIT(nid, 5),
++ "nx_migrate_task(%p,%p[#%d.%d.%d])",
++ p, nxi, nxi->nx_id,
++ atomic_read(&nxi->nx_usecnt),
++ atomic_read(&nxi->nx_tasks));
++
++ if (nx_info_flags(nxi, NXF_INFO_PRIVATE, 0) &&
++ !nx_info_flags(nxi, NXF_STATE_SETUP, 0))
++ return -EACCES;
++
++ if (nx_info_state(nxi, NXS_SHUTDOWN))
++ return -EFAULT;
++
++ /* maybe disallow this completely? */
++ old_nxi = task_get_nx_info(p);
++ if (old_nxi == nxi)
++ goto out;
++
++ task_lock(p);
++ if (old_nxi)
++ clr_nx_info(&p->nx_info);
++ claim_nx_info(nxi, p);
++ set_nx_info(&p->nx_info, nxi);
++ p->nid = nxi->nx_id;
++ task_unlock(p);
++
++ vxdprintk(VXD_CBIT(nid, 5),
++ "moved task %p into nxi:%p[#%d]",
++ p, nxi, nxi->nx_id);
++
++ if (old_nxi)
++ release_nx_info(old_nxi, p);
++ ret = 0;
++out:
++ put_nx_info(old_nxi);
++ return ret;
++}
++
++
++void nx_set_persistent(struct nx_info *nxi)
++{
++ vxdprintk(VXD_CBIT(nid, 6),
++ "nx_set_persistent(%p[#%d])", nxi, nxi->nx_id);
++
++ get_nx_info(nxi);
++ claim_nx_info(nxi, NULL);
++}
++
++void nx_clear_persistent(struct nx_info *nxi)
++{
++ vxdprintk(VXD_CBIT(nid, 6),
++ "nx_clear_persistent(%p[#%d])", nxi, nxi->nx_id);
++
++ release_nx_info(nxi, NULL);
++ put_nx_info(nxi);
++}
++
++void nx_update_persistent(struct nx_info *nxi)
++{
++ if (nx_info_flags(nxi, NXF_PERSISTENT, 0))
++ nx_set_persistent(nxi);
++ else
++ nx_clear_persistent(nxi);
++}
++
++/* vserver syscall commands below here */
++
++/* taks nid and nx_info functions */
++
++#include <asm/uaccess.h>
++
++
++int vc_task_nid(uint32_t id)
++{
++ nid_t nid;
++
++ if (id) {
++ struct task_struct *tsk;
++
++ read_lock(&tasklist_lock);
++ tsk = find_task_by_real_pid(id);
++ nid = (tsk) ? tsk->nid : -ESRCH;
++ read_unlock(&tasklist_lock);
++ } else
++ nid = nx_current_nid();
++ return nid;
++}
++
++
++int vc_nx_info(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_nx_info_v0 vc_data;
++
++ vc_data.nid = nxi->nx_id;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++/* network functions */
++
++int vc_net_create(uint32_t nid, void __user *data)
++{
++ struct vcmd_net_create vc_data = { .flagword = NXF_INIT_SET };
++ struct nx_info *new_nxi;
++ int ret;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ if ((nid > MAX_S_CONTEXT) || (nid < 2))
++ return -EINVAL;
++
++ new_nxi = __create_nx_info(nid);
++ if (IS_ERR(new_nxi))
++ return PTR_ERR(new_nxi);
++
++ /* initial flags */
++ new_nxi->nx_flags = vc_data.flagword;
++
++ ret = -ENOEXEC;
++ if (vs_net_change(new_nxi, VSC_NETUP))
++ goto out;
++
++ ret = nx_migrate_task(current, new_nxi);
++ if (ret)
++ goto out;
++
++ /* return context id on success */
++ ret = new_nxi->nx_id;
++
++ /* get a reference for persistent contexts */
++ if ((vc_data.flagword & NXF_PERSISTENT))
++ nx_set_persistent(new_nxi);
++out:
++ release_nx_info(new_nxi, NULL);
++ put_nx_info(new_nxi);
++ return ret;
++}
++
++
++int vc_net_migrate(struct nx_info *nxi, void __user *data)
++{
++ return nx_migrate_task(current, nxi);
++}
++
++
++
++int do_add_v4_addr(struct nx_info *nxi, __be32 ip, __be32 ip2, __be32 mask,
++ uint16_t type, uint16_t flags)
++{
++ struct nx_addr_v4 *nxa = &nxi->v4;
++
++ if (NX_IPV4(nxi)) {
++ /* locate last entry */
++ for (; nxa->next; nxa = nxa->next);
++ nxa->next = __alloc_nx_addr_v4();
++ nxa = nxa->next;
++
++ if (IS_ERR(nxa))
++ return PTR_ERR(nxa);
++ }
++
++ if (nxi->v4.next)
++ /* remove single ip for ip list */
++ nxi->nx_flags &= ~NXF_SINGLE_IP;
++
++ nxa->ip[0].s_addr = ip;
++ nxa->ip[1].s_addr = ip2;
++ nxa->mask.s_addr = mask;
++ nxa->type = type;
++ nxa->flags = flags;
++ return 0;
++}
++
++
++int vc_net_add(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_addr_v0 vc_data;
++ int index, ret = 0;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ switch (vc_data.type) {
++ case NXA_TYPE_IPV4:
++ if ((vc_data.count < 1) || (vc_data.count > 4))
++ return -EINVAL;
++
++ index = 0;
++ while (index < vc_data.count) {
++ ret = do_add_v4_addr(nxi, vc_data.ip[index].s_addr, 0,
++ vc_data.mask[index].s_addr, NXA_TYPE_ADDR, 0);
++ if (ret)
++ return ret;
++ index++;
++ }
++ ret = index;
++ break;
++
++ case NXA_TYPE_IPV4|NXA_MOD_BCAST:
++ nxi->v4_bcast = vc_data.ip[0];
++ ret = 1;
++ break;
++
++ case NXA_TYPE_IPV4|NXA_MOD_LBACK:
++ nxi->v4_lback = vc_data.ip[0];
++ ret = 1;
++ break;
++
++ default:
++ ret = -EINVAL;
++ break;
++ }
++ return ret;
++}
++
++int vc_net_remove(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_addr_v0 vc_data;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ switch (vc_data.type) {
++ case NXA_TYPE_ANY:
++ __dealloc_nx_addr_v4_all(xchg(&nxi->v4.next, NULL));
++ memset(&nxi->v4, 0, sizeof(nxi->v4));
++ break;
++
++ default:
++ return -EINVAL;
++ }
++ return 0;
++}
++
++
++int vc_net_add_ipv4(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_addr_ipv4_v1 vc_data;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ switch (vc_data.type) {
++ case NXA_TYPE_ADDR:
++ case NXA_TYPE_RANGE:
++ case NXA_TYPE_MASK:
++ return do_add_v4_addr(nxi, vc_data.ip.s_addr, 0,
++ vc_data.mask.s_addr, vc_data.type, vc_data.flags);
++
++ case NXA_TYPE_ADDR | NXA_MOD_BCAST:
++ nxi->v4_bcast = vc_data.ip;
++ break;
++
++ case NXA_TYPE_ADDR | NXA_MOD_LBACK:
++ nxi->v4_lback = vc_data.ip;
++ break;
++
++ default:
++ return -EINVAL;
++ }
++ return 0;
++}
++
++int vc_net_remove_ipv4(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_addr_ipv4_v1 vc_data;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ switch (vc_data.type) {
++/* case NXA_TYPE_ADDR:
++ break; */
++
++ case NXA_TYPE_ANY:
++ __dealloc_nx_addr_v4_all(xchg(&nxi->v4.next, NULL));
++ memset(&nxi->v4, 0, sizeof(nxi->v4));
++ break;
++
++ default:
++ return -EINVAL;
++ }
++ return 0;
++}
++
++
++#ifdef CONFIG_IPV6
++
++int do_add_v6_addr(struct nx_info *nxi,
++ struct in6_addr *ip, struct in6_addr *mask,
++ uint32_t prefix, uint16_t type, uint16_t flags)
++{
++ struct nx_addr_v6 *nxa = &nxi->v6;
++
++ if (NX_IPV6(nxi)) {
++ /* locate last entry */
++ for (; nxa->next; nxa = nxa->next);
++ nxa->next = __alloc_nx_addr_v6();
++ nxa = nxa->next;
++
++ if (IS_ERR(nxa))
++ return PTR_ERR(nxa);
++ }
++
++ nxa->ip = *ip;
++ nxa->mask = *mask;
++ nxa->prefix = prefix;
++ nxa->type = type;
++ nxa->flags = flags;
++ return 0;
++}
++
++
++int vc_net_add_ipv6(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_addr_ipv6_v1 vc_data;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ switch (vc_data.type) {
++ case NXA_TYPE_ADDR:
++ case NXA_TYPE_MASK:
++ return do_add_v6_addr(nxi, &vc_data.ip, &vc_data.mask,
++ vc_data.prefix, vc_data.type, vc_data.flags);
++ default:
++ return -EINVAL;
++ }
++ return 0;
++}
++
++int vc_net_remove_ipv6(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_addr_ipv6_v1 vc_data;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ switch (vc_data.type) {
++ case NXA_TYPE_ANY:
++ __dealloc_nx_addr_v6_all(xchg(&nxi->v6.next, NULL));
++ memset(&nxi->v6, 0, sizeof(nxi->v6));
++ break;
++
++ default:
++ return -EINVAL;
++ }
++ return 0;
++}
++
++#endif /* CONFIG_IPV6 */
++
++
++int vc_get_nflags(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_flags_v0 vc_data;
++
++ vc_data.flagword = nxi->nx_flags;
++
++ /* special STATE flag handling */
++ vc_data.mask = vs_mask_flags(~0ULL, nxi->nx_flags, NXF_ONE_TIME);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_nflags(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_flags_v0 vc_data;
++ uint64_t mask, trigger;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ /* special STATE flag handling */
++ mask = vs_mask_mask(vc_data.mask, nxi->nx_flags, NXF_ONE_TIME);
++ trigger = (mask & nxi->nx_flags) ^ (mask & vc_data.flagword);
++
++ nxi->nx_flags = vs_mask_flags(nxi->nx_flags,
++ vc_data.flagword, mask);
++ if (trigger & NXF_PERSISTENT)
++ nx_update_persistent(nxi);
++
++ return 0;
++}
++
++int vc_get_ncaps(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_caps_v0 vc_data;
++
++ vc_data.ncaps = nxi->nx_ncaps;
++ vc_data.cmask = ~0ULL;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_ncaps(struct nx_info *nxi, void __user *data)
++{
++ struct vcmd_net_caps_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ nxi->nx_ncaps = vs_mask_flags(nxi->nx_ncaps,
++ vc_data.ncaps, vc_data.cmask);
++ return 0;
++}
++
++
++#include <linux/module.h>
++
++module_init(init_network);
++
++EXPORT_SYMBOL_GPL(free_nx_info);
++EXPORT_SYMBOL_GPL(unhash_nx_info);
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/proc.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/proc.c
+--- linux-2.6.32.1/kernel/vserver/proc.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/proc.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,1098 @@
++/*
++ * linux/kernel/vserver/proc.c
++ *
++ * Virtual Context Support
++ *
++ * Copyright (C) 2003-2007 Herbert Pötzl
++ *
++ * V0.01 basic structure
++ * V0.02 adaptation vs1.3.0
++ * V0.03 proc permissions
++ * V0.04 locking/generic
++ * V0.05 next generation procfs
++ * V0.06 inode validation
++ * V0.07 generic rewrite vid
++ * V0.08 remove inode type
++ *
++ */
++
++#include <linux/proc_fs.h>
++#include <linux/fs_struct.h>
++#include <linux/mount.h>
++#include <asm/unistd.h>
++
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_cvirt.h>
++
++#include <linux/in.h>
++#include <linux/inetdevice.h>
++#include <linux/vs_inet.h>
++#include <linux/vs_inet6.h>
++
++#include <linux/vserver/global.h>
++
++#include "cvirt_proc.h"
++#include "cacct_proc.h"
++#include "limit_proc.h"
++#include "sched_proc.h"
++#include "vci_config.h"
++
++
++static inline char *print_cap_t(char *buffer, kernel_cap_t *c)
++{
++ unsigned __capi;
++
++ CAP_FOR_EACH_U32(__capi) {
++ buffer += sprintf(buffer, "%08x",
++ c->cap[(_KERNEL_CAPABILITY_U32S-1) - __capi]);
++ }
++ return buffer;
++}
++
++
++static struct proc_dir_entry *proc_virtual;
++
++static struct proc_dir_entry *proc_virtnet;
++
++
++/* first the actual feeds */
++
++
++static int proc_vci(char *buffer)
++{
++ return sprintf(buffer,
++ "VCIVersion:\t%04x:%04x\n"
++ "VCISyscall:\t%d\n"
++ "VCIKernel:\t%08x\n",
++ VCI_VERSION >> 16,
++ VCI_VERSION & 0xFFFF,
++ __NR_vserver,
++ vci_kernel_config());
++}
++
++static int proc_virtual_info(char *buffer)
++{
++ return proc_vci(buffer);
++}
++
++static int proc_virtual_status(char *buffer)
++{
++ return sprintf(buffer,
++ "#CTotal:\t%d\n"
++ "#CActive:\t%d\n"
++ "#NSProxy:\t%d\t%d %d %d %d %d %d\n"
++ "#InitTask:\t%d\t%d %d\n",
++ atomic_read(&vx_global_ctotal),
++ atomic_read(&vx_global_cactive),
++ atomic_read(&vs_global_nsproxy),
++ atomic_read(&vs_global_fs),
++ atomic_read(&vs_global_mnt_ns),
++ atomic_read(&vs_global_uts_ns),
++ atomic_read(&nr_ipc_ns),
++ atomic_read(&vs_global_user_ns),
++ atomic_read(&vs_global_pid_ns),
++ atomic_read(&init_task.usage),
++ atomic_read(&init_task.nsproxy->count),
++ init_task.fs->users);
++}
++
++
++int proc_vxi_info(struct vx_info *vxi, char *buffer)
++{
++ int length;
++
++ length = sprintf(buffer,
++ "ID:\t%d\n"
++ "Info:\t%p\n"
++ "Init:\t%d\n"
++ "OOM:\t%lld\n",
++ vxi->vx_id,
++ vxi,
++ vxi->vx_initpid,
++ vxi->vx_badness_bias);
++ return length;
++}
++
++int proc_vxi_status(struct vx_info *vxi, char *buffer)
++{
++ char *orig = buffer;
++
++ buffer += sprintf(buffer,
++ "UseCnt:\t%d\n"
++ "Tasks:\t%d\n"
++ "Flags:\t%016llx\n",
++ atomic_read(&vxi->vx_usecnt),
++ atomic_read(&vxi->vx_tasks),
++ (unsigned long long)vxi->vx_flags);
++
++ buffer += sprintf(buffer, "BCaps:\t");
++ buffer = print_cap_t(buffer, &vxi->vx_bcaps);
++ buffer += sprintf(buffer, "\n");
++
++ buffer += sprintf(buffer,
++ "CCaps:\t%016llx\n"
++ "Spaces:\t%08lx %08lx\n",
++ (unsigned long long)vxi->vx_ccaps,
++ vxi->vx_nsmask[0], vxi->vx_nsmask[1]);
++ return buffer - orig;
++}
++
++int proc_vxi_limit(struct vx_info *vxi, char *buffer)
++{
++ return vx_info_proc_limit(&vxi->limit, buffer);
++}
++
++int proc_vxi_sched(struct vx_info *vxi, char *buffer)
++{
++ int cpu, length;
++
++ length = vx_info_proc_sched(&vxi->sched, buffer);
++ for_each_online_cpu(cpu) {
++ length += vx_info_proc_sched_pc(
++ &vx_per_cpu(vxi, sched_pc, cpu),
++ buffer + length, cpu);
++ }
++ return length;
++}
++
++int proc_vxi_nsproxy0(struct vx_info *vxi, char *buffer)
++{
++ return vx_info_proc_nsproxy(vxi->vx_nsproxy[0], buffer);
++}
++
++int proc_vxi_nsproxy1(struct vx_info *vxi, char *buffer)
++{
++ return vx_info_proc_nsproxy(vxi->vx_nsproxy[1], buffer);
++}
++
++int proc_vxi_cvirt(struct vx_info *vxi, char *buffer)
++{
++ int cpu, length;
++
++ vx_update_load(vxi);
++ length = vx_info_proc_cvirt(&vxi->cvirt, buffer);
++ for_each_online_cpu(cpu) {
++ length += vx_info_proc_cvirt_pc(
++ &vx_per_cpu(vxi, cvirt_pc, cpu),
++ buffer + length, cpu);
++ }
++ return length;
++}
++
++int proc_vxi_cacct(struct vx_info *vxi, char *buffer)
++{
++ return vx_info_proc_cacct(&vxi->cacct, buffer);
++}
++
++
++static int proc_virtnet_info(char *buffer)
++{
++ return proc_vci(buffer);
++}
++
++static int proc_virtnet_status(char *buffer)
++{
++ return sprintf(buffer,
++ "#CTotal:\t%d\n"
++ "#CActive:\t%d\n",
++ atomic_read(&nx_global_ctotal),
++ atomic_read(&nx_global_cactive));
++}
++
++int proc_nxi_info(struct nx_info *nxi, char *buffer)
++{
++ struct nx_addr_v4 *v4a;
++#ifdef CONFIG_IPV6
++ struct nx_addr_v6 *v6a;
++#endif
++ int length, i;
++
++ length = sprintf(buffer,
++ "ID:\t%d\n"
++ "Info:\t%p\n"
++ "Bcast:\t" NIPQUAD_FMT "\n"
++ "Lback:\t" NIPQUAD_FMT "\n",
++ nxi->nx_id,
++ nxi,
++ NIPQUAD(nxi->v4_bcast.s_addr),
++ NIPQUAD(nxi->v4_lback.s_addr));
++
++ if (!NX_IPV4(nxi))
++ goto skip_v4;
++ for (i = 0, v4a = &nxi->v4; v4a; i++, v4a = v4a->next)
++ length += sprintf(buffer + length, "%d:\t" NXAV4_FMT "\n",
++ i, NXAV4(v4a));
++skip_v4:
++#ifdef CONFIG_IPV6
++ if (!NX_IPV6(nxi))
++ goto skip_v6;
++ for (i = 0, v6a = &nxi->v6; v6a; i++, v6a = v6a->next)
++ length += sprintf(buffer + length, "%d:\t" NXAV6_FMT "\n",
++ i, NXAV6(v6a));
++skip_v6:
++#endif
++ return length;
++}
++
++int proc_nxi_status(struct nx_info *nxi, char *buffer)
++{
++ int length;
++
++ length = sprintf(buffer,
++ "UseCnt:\t%d\n"
++ "Tasks:\t%d\n"
++ "Flags:\t%016llx\n"
++ "NCaps:\t%016llx\n",
++ atomic_read(&nxi->nx_usecnt),
++ atomic_read(&nxi->nx_tasks),
++ (unsigned long long)nxi->nx_flags,
++ (unsigned long long)nxi->nx_ncaps);
++ return length;
++}
++
++
++
++/* here the inode helpers */
++
++struct vs_entry {
++ int len;
++ char *name;
++ mode_t mode;
++ struct inode_operations *iop;
++ struct file_operations *fop;
++ union proc_op op;
++};
++
++static struct inode *vs_proc_make_inode(struct super_block *sb, struct vs_entry *p)
++{
++ struct inode *inode = new_inode(sb);
++
++ if (!inode)
++ goto out;
++
++ inode->i_mode = p->mode;
++ if (p->iop)
++ inode->i_op = p->iop;
++ if (p->fop)
++ inode->i_fop = p->fop;
++
++ inode->i_nlink = (p->mode & S_IFDIR) ? 2 : 1;
++ inode->i_flags |= S_IMMUTABLE;
++
++ inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
++
++ inode->i_uid = 0;
++ inode->i_gid = 0;
++ inode->i_tag = 0;
++out:
++ return inode;
++}
++
++static struct dentry *vs_proc_instantiate(struct inode *dir,
++ struct dentry *dentry, int id, void *ptr)
++{
++ struct vs_entry *p = ptr;
++ struct inode *inode = vs_proc_make_inode(dir->i_sb, p);
++ struct dentry *error = ERR_PTR(-EINVAL);
++
++ if (!inode)
++ goto out;
++
++ PROC_I(inode)->op = p->op;
++ PROC_I(inode)->fd = id;
++ d_add(dentry, inode);
++ error = NULL;
++out:
++ return error;
++}
++
++/* Lookups */
++
++typedef struct dentry *instantiate_t(struct inode *, struct dentry *, int, void *);
++
++/*
++ * Fill a directory entry.
++ *
++ * If possible create the dcache entry and derive our inode number and
++ * file type from dcache entry.
++ *
++ * Since all of the proc inode numbers are dynamically generated, the inode
++ * numbers do not exist until the inode is cache. This means creating the
++ * the dcache entry in readdir is necessary to keep the inode numbers
++ * reported by readdir in sync with the inode numbers reported
++ * by stat.
++ */
++static int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
++ char *name, int len, instantiate_t instantiate, int id, void *ptr)
++{
++ struct dentry *child, *dir = filp->f_dentry;
++ struct inode *inode;
++ struct qstr qname;
++ ino_t ino = 0;
++ unsigned type = DT_UNKNOWN;
++
++ qname.name = name;
++ qname.len = len;
++ qname.hash = full_name_hash(name, len);
++
++ child = d_lookup(dir, &qname);
++ if (!child) {
++ struct dentry *new;
++ new = d_alloc(dir, &qname);
++ if (new) {
++ child = instantiate(dir->d_inode, new, id, ptr);
++ if (child)
++ dput(new);
++ else
++ child = new;
++ }
++ }
++ if (!child || IS_ERR(child) || !child->d_inode)
++ goto end_instantiate;
++ inode = child->d_inode;
++ if (inode) {
++ ino = inode->i_ino;
++ type = inode->i_mode >> 12;
++ }
++ dput(child);
++end_instantiate:
++ if (!ino)
++ ino = find_inode_number(dir, &qname);
++ if (!ino)
++ ino = 1;
++ return filldir(dirent, name, len, filp->f_pos, ino, type);
++}
++
++
++
++/* get and revalidate vx_info/xid */
++
++static inline
++struct vx_info *get_proc_vx_info(struct inode *inode)
++{
++ return lookup_vx_info(PROC_I(inode)->fd);
++}
++
++static int proc_xid_revalidate(struct dentry *dentry, struct nameidata *nd)
++{
++ struct inode *inode = dentry->d_inode;
++ xid_t xid = PROC_I(inode)->fd;
++
++ if (!xid || xid_is_hashed(xid))
++ return 1;
++ d_drop(dentry);
++ return 0;
++}
++
++
++/* get and revalidate nx_info/nid */
++
++static int proc_nid_revalidate(struct dentry *dentry, struct nameidata *nd)
++{
++ struct inode *inode = dentry->d_inode;
++ nid_t nid = PROC_I(inode)->fd;
++
++ if (!nid || nid_is_hashed(nid))
++ return 1;
++ d_drop(dentry);
++ return 0;
++}
++
++
++
++#define PROC_BLOCK_SIZE (PAGE_SIZE - 1024)
++
++static ssize_t proc_vs_info_read(struct file *file, char __user *buf,
++ size_t count, loff_t *ppos)
++{
++ struct inode *inode = file->f_dentry->d_inode;
++ unsigned long page;
++ ssize_t length = 0;
++
++ if (count > PROC_BLOCK_SIZE)
++ count = PROC_BLOCK_SIZE;
++
++ /* fade that out as soon as stable */
++ WARN_ON(PROC_I(inode)->fd);
++
++ if (!(page = __get_free_page(GFP_KERNEL)))
++ return -ENOMEM;
++
++ BUG_ON(!PROC_I(inode)->op.proc_vs_read);
++ length = PROC_I(inode)->op.proc_vs_read((char *)page);
++
++ if (length >= 0)
++ length = simple_read_from_buffer(buf, count, ppos,
++ (char *)page, length);
++
++ free_page(page);
++ return length;
++}
++
++static ssize_t proc_vx_info_read(struct file *file, char __user *buf,
++ size_t count, loff_t *ppos)
++{
++ struct inode *inode = file->f_dentry->d_inode;
++ struct vx_info *vxi = NULL;
++ xid_t xid = PROC_I(inode)->fd;
++ unsigned long page;
++ ssize_t length = 0;
++
++ if (count > PROC_BLOCK_SIZE)
++ count = PROC_BLOCK_SIZE;
++
++ /* fade that out as soon as stable */
++ WARN_ON(!xid);
++ vxi = lookup_vx_info(xid);
++ if (!vxi)
++ goto out;
++
++ length = -ENOMEM;
++ if (!(page = __get_free_page(GFP_KERNEL)))
++ goto out_put;
++
++ BUG_ON(!PROC_I(inode)->op.proc_vxi_read);
++ length = PROC_I(inode)->op.proc_vxi_read(vxi, (char *)page);
++
++ if (length >= 0)
++ length = simple_read_from_buffer(buf, count, ppos,
++ (char *)page, length);
++
++ free_page(page);
++out_put:
++ put_vx_info(vxi);
++out:
++ return length;
++}
++
++static ssize_t proc_nx_info_read(struct file *file, char __user *buf,
++ size_t count, loff_t *ppos)
++{
++ struct inode *inode = file->f_dentry->d_inode;
++ struct nx_info *nxi = NULL;
++ nid_t nid = PROC_I(inode)->fd;
++ unsigned long page;
++ ssize_t length = 0;
++
++ if (count > PROC_BLOCK_SIZE)
++ count = PROC_BLOCK_SIZE;
++
++ /* fade that out as soon as stable */
++ WARN_ON(!nid);
++ nxi = lookup_nx_info(nid);
++ if (!nxi)
++ goto out;
++
++ length = -ENOMEM;
++ if (!(page = __get_free_page(GFP_KERNEL)))
++ goto out_put;
++
++ BUG_ON(!PROC_I(inode)->op.proc_nxi_read);
++ length = PROC_I(inode)->op.proc_nxi_read(nxi, (char *)page);
++
++ if (length >= 0)
++ length = simple_read_from_buffer(buf, count, ppos,
++ (char *)page, length);
++
++ free_page(page);
++out_put:
++ put_nx_info(nxi);
++out:
++ return length;
++}
++
++
++
++/* here comes the lower level */
++
++
++#define NOD(NAME, MODE, IOP, FOP, OP) { \
++ .len = sizeof(NAME) - 1, \
++ .name = (NAME), \
++ .mode = MODE, \
++ .iop = IOP, \
++ .fop = FOP, \
++ .op = OP, \
++}
++
++
++#define DIR(NAME, MODE, OTYPE) \
++ NOD(NAME, (S_IFDIR | (MODE)), \
++ &proc_ ## OTYPE ## _inode_operations, \
++ &proc_ ## OTYPE ## _file_operations, { } )
++
++#define INF(NAME, MODE, OTYPE) \
++ NOD(NAME, (S_IFREG | (MODE)), NULL, \
++ &proc_vs_info_file_operations, \
++ { .proc_vs_read = &proc_##OTYPE } )
++
++#define VINF(NAME, MODE, OTYPE) \
++ NOD(NAME, (S_IFREG | (MODE)), NULL, \
++ &proc_vx_info_file_operations, \
++ { .proc_vxi_read = &proc_##OTYPE } )
++
++#define NINF(NAME, MODE, OTYPE) \
++ NOD(NAME, (S_IFREG | (MODE)), NULL, \
++ &proc_nx_info_file_operations, \
++ { .proc_nxi_read = &proc_##OTYPE } )
++
++
++static struct file_operations proc_vs_info_file_operations = {
++ .read = proc_vs_info_read,
++};
++
++static struct file_operations proc_vx_info_file_operations = {
++ .read = proc_vx_info_read,
++};
++
++static struct dentry_operations proc_xid_dentry_operations = {
++ .d_revalidate = proc_xid_revalidate,
++};
++
++static struct vs_entry vx_base_stuff[] = {
++ VINF("info", S_IRUGO, vxi_info),
++ VINF("status", S_IRUGO, vxi_status),
++ VINF("limit", S_IRUGO, vxi_limit),
++ VINF("sched", S_IRUGO, vxi_sched),
++ VINF("nsproxy", S_IRUGO, vxi_nsproxy0),
++ VINF("nsproxy1",S_IRUGO, vxi_nsproxy1),
++ VINF("cvirt", S_IRUGO, vxi_cvirt),
++ VINF("cacct", S_IRUGO, vxi_cacct),
++ {}
++};
++
++
++
++
++static struct dentry *proc_xid_instantiate(struct inode *dir,
++ struct dentry *dentry, int id, void *ptr)
++{
++ dentry->d_op = &proc_xid_dentry_operations;
++ return vs_proc_instantiate(dir, dentry, id, ptr);
++}
++
++static struct dentry *proc_xid_lookup(struct inode *dir,
++ struct dentry *dentry, struct nameidata *nd)
++{
++ struct vs_entry *p = vx_base_stuff;
++ struct dentry *error = ERR_PTR(-ENOENT);
++
++ for (; p->name; p++) {
++ if (p->len != dentry->d_name.len)
++ continue;
++ if (!memcmp(dentry->d_name.name, p->name, p->len))
++ break;
++ }
++ if (!p->name)
++ goto out;
++
++ error = proc_xid_instantiate(dir, dentry, PROC_I(dir)->fd, p);
++out:
++ return error;
++}
++
++static int proc_xid_readdir(struct file *filp,
++ void *dirent, filldir_t filldir)
++{
++ struct dentry *dentry = filp->f_dentry;
++ struct inode *inode = dentry->d_inode;
++ struct vs_entry *p = vx_base_stuff;
++ int size = sizeof(vx_base_stuff) / sizeof(struct vs_entry);
++ int pos, index;
++ u64 ino;
++
++ pos = filp->f_pos;
++ switch (pos) {
++ case 0:
++ ino = inode->i_ino;
++ if (filldir(dirent, ".", 1, pos, ino, DT_DIR) < 0)
++ goto out;
++ pos++;
++ /* fall through */
++ case 1:
++ ino = parent_ino(dentry);
++ if (filldir(dirent, "..", 2, pos, ino, DT_DIR) < 0)
++ goto out;
++ pos++;
++ /* fall through */
++ default:
++ index = pos - 2;
++ if (index >= size)
++ goto out;
++ for (p += index; p->name; p++) {
++ if (proc_fill_cache(filp, dirent, filldir, p->name, p->len,
++ vs_proc_instantiate, PROC_I(inode)->fd, p))
++ goto out;
++ pos++;
++ }
++ }
++out:
++ filp->f_pos = pos;
++ return 1;
++}
++
++
++
++static struct file_operations proc_nx_info_file_operations = {
++ .read = proc_nx_info_read,
++};
++
++static struct dentry_operations proc_nid_dentry_operations = {
++ .d_revalidate = proc_nid_revalidate,
++};
++
++static struct vs_entry nx_base_stuff[] = {
++ NINF("info", S_IRUGO, nxi_info),
++ NINF("status", S_IRUGO, nxi_status),
++ {}
++};
++
++
++static struct dentry *proc_nid_instantiate(struct inode *dir,
++ struct dentry *dentry, int id, void *ptr)
++{
++ dentry->d_op = &proc_nid_dentry_operations;
++ return vs_proc_instantiate(dir, dentry, id, ptr);
++}
++
++static struct dentry *proc_nid_lookup(struct inode *dir,
++ struct dentry *dentry, struct nameidata *nd)
++{
++ struct vs_entry *p = nx_base_stuff;
++ struct dentry *error = ERR_PTR(-ENOENT);
++
++ for (; p->name; p++) {
++ if (p->len != dentry->d_name.len)
++ continue;
++ if (!memcmp(dentry->d_name.name, p->name, p->len))
++ break;
++ }
++ if (!p->name)
++ goto out;
++
++ error = proc_nid_instantiate(dir, dentry, PROC_I(dir)->fd, p);
++out:
++ return error;
++}
++
++static int proc_nid_readdir(struct file *filp,
++ void *dirent, filldir_t filldir)
++{
++ struct dentry *dentry = filp->f_dentry;
++ struct inode *inode = dentry->d_inode;
++ struct vs_entry *p = nx_base_stuff;
++ int size = sizeof(nx_base_stuff) / sizeof(struct vs_entry);
++ int pos, index;
++ u64 ino;
++
++ pos = filp->f_pos;
++ switch (pos) {
++ case 0:
++ ino = inode->i_ino;
++ if (filldir(dirent, ".", 1, pos, ino, DT_DIR) < 0)
++ goto out;
++ pos++;
++ /* fall through */
++ case 1:
++ ino = parent_ino(dentry);
++ if (filldir(dirent, "..", 2, pos, ino, DT_DIR) < 0)
++ goto out;
++ pos++;
++ /* fall through */
++ default:
++ index = pos - 2;
++ if (index >= size)
++ goto out;
++ for (p += index; p->name; p++) {
++ if (proc_fill_cache(filp, dirent, filldir, p->name, p->len,
++ vs_proc_instantiate, PROC_I(inode)->fd, p))
++ goto out;
++ pos++;
++ }
++ }
++out:
++ filp->f_pos = pos;
++ return 1;
++}
++
++
++#define MAX_MULBY10 ((~0U - 9) / 10)
++
++static inline int atovid(const char *str, int len)
++{
++ int vid, c;
++
++ vid = 0;
++ while (len-- > 0) {
++ c = *str - '0';
++ str++;
++ if (c > 9)
++ return -1;
++ if (vid >= MAX_MULBY10)
++ return -1;
++ vid *= 10;
++ vid += c;
++ if (!vid)
++ return -1;
++ }
++ return vid;
++}
++
++/* now the upper level (virtual) */
++
++
++static struct file_operations proc_xid_file_operations = {
++ .read = generic_read_dir,
++ .readdir = proc_xid_readdir,
++};
++
++static struct inode_operations proc_xid_inode_operations = {
++ .lookup = proc_xid_lookup,
++};
++
++static struct vs_entry vx_virtual_stuff[] = {
++ INF("info", S_IRUGO, virtual_info),
++ INF("status", S_IRUGO, virtual_status),
++ DIR(NULL, S_IRUGO | S_IXUGO, xid),
++};
++
++
++static struct dentry *proc_virtual_lookup(struct inode *dir,
++ struct dentry *dentry, struct nameidata *nd)
++{
++ struct vs_entry *p = vx_virtual_stuff;
++ struct dentry *error = ERR_PTR(-ENOENT);
++ int id = 0;
++
++ for (; p->name; p++) {
++ if (p->len != dentry->d_name.len)
++ continue;
++ if (!memcmp(dentry->d_name.name, p->name, p->len))
++ break;
++ }
++ if (p->name)
++ goto instantiate;
++
++ id = atovid(dentry->d_name.name, dentry->d_name.len);
++ if ((id < 0) || !xid_is_hashed(id))
++ goto out;
++
++instantiate:
++ error = proc_xid_instantiate(dir, dentry, id, p);
++out:
++ return error;
++}
++
++static struct file_operations proc_nid_file_operations = {
++ .read = generic_read_dir,
++ .readdir = proc_nid_readdir,
++};
++
++static struct inode_operations proc_nid_inode_operations = {
++ .lookup = proc_nid_lookup,
++};
++
++static struct vs_entry nx_virtnet_stuff[] = {
++ INF("info", S_IRUGO, virtnet_info),
++ INF("status", S_IRUGO, virtnet_status),
++ DIR(NULL, S_IRUGO | S_IXUGO, nid),
++};
++
++
++static struct dentry *proc_virtnet_lookup(struct inode *dir,
++ struct dentry *dentry, struct nameidata *nd)
++{
++ struct vs_entry *p = nx_virtnet_stuff;
++ struct dentry *error = ERR_PTR(-ENOENT);
++ int id = 0;
++
++ for (; p->name; p++) {
++ if (p->len != dentry->d_name.len)
++ continue;
++ if (!memcmp(dentry->d_name.name, p->name, p->len))
++ break;
++ }
++ if (p->name)
++ goto instantiate;
++
++ id = atovid(dentry->d_name.name, dentry->d_name.len);
++ if ((id < 0) || !nid_is_hashed(id))
++ goto out;
++
++instantiate:
++ error = proc_nid_instantiate(dir, dentry, id, p);
++out:
++ return error;
++}
++
++
++#define PROC_MAXVIDS 32
++
++int proc_virtual_readdir(struct file *filp,
++ void *dirent, filldir_t filldir)
++{
++ struct dentry *dentry = filp->f_dentry;
++ struct inode *inode = dentry->d_inode;
++ struct vs_entry *p = vx_virtual_stuff;
++ int size = sizeof(vx_virtual_stuff) / sizeof(struct vs_entry);
++ int pos, index;
++ unsigned int xid_array[PROC_MAXVIDS];
++ char buf[PROC_NUMBUF];
++ unsigned int nr_xids, i;
++ u64 ino;
++
++ pos = filp->f_pos;
++ switch (pos) {
++ case 0:
++ ino = inode->i_ino;
++ if (filldir(dirent, ".", 1, pos, ino, DT_DIR) < 0)
++ goto out;
++ pos++;
++ /* fall through */
++ case 1:
++ ino = parent_ino(dentry);
++ if (filldir(dirent, "..", 2, pos, ino, DT_DIR) < 0)
++ goto out;
++ pos++;
++ /* fall through */
++ default:
++ index = pos - 2;
++ if (index >= size)
++ goto entries;
++ for (p += index; p->name; p++) {
++ if (proc_fill_cache(filp, dirent, filldir, p->name, p->len,
++ vs_proc_instantiate, 0, p))
++ goto out;
++ pos++;
++ }
++ entries:
++ index = pos - size;
++ p = &vx_virtual_stuff[size - 1];
++ nr_xids = get_xid_list(index, xid_array, PROC_MAXVIDS);
++ for (i = 0; i < nr_xids; i++) {
++ int n, xid = xid_array[i];
++ unsigned int j = PROC_NUMBUF;
++
++ n = xid;
++ do
++ buf[--j] = '0' + (n % 10);
++ while (n /= 10);
++
++ if (proc_fill_cache(filp, dirent, filldir,
++ buf + j, PROC_NUMBUF - j,
++ vs_proc_instantiate, xid, p))
++ goto out;
++ pos++;
++ }
++ }
++out:
++ filp->f_pos = pos;
++ return 0;
++}
++
++static int proc_virtual_getattr(struct vfsmount *mnt,
++ struct dentry *dentry, struct kstat *stat)
++{
++ struct inode *inode = dentry->d_inode;
++
++ generic_fillattr(inode, stat);
++ stat->nlink = 2 + atomic_read(&vx_global_cactive);
++ return 0;
++}
++
++static struct file_operations proc_virtual_dir_operations = {
++ .read = generic_read_dir,
++ .readdir = proc_virtual_readdir,
++};
++
++static struct inode_operations proc_virtual_dir_inode_operations = {
++ .getattr = proc_virtual_getattr,
++ .lookup = proc_virtual_lookup,
++};
++
++
++
++
++
++int proc_virtnet_readdir(struct file *filp,
++ void *dirent, filldir_t filldir)
++{
++ struct dentry *dentry = filp->f_dentry;
++ struct inode *inode = dentry->d_inode;
++ struct vs_entry *p = nx_virtnet_stuff;
++ int size = sizeof(nx_virtnet_stuff) / sizeof(struct vs_entry);
++ int pos, index;
++ unsigned int nid_array[PROC_MAXVIDS];
++ char buf[PROC_NUMBUF];
++ unsigned int nr_nids, i;
++ u64 ino;
++
++ pos = filp->f_pos;
++ switch (pos) {
++ case 0:
++ ino = inode->i_ino;
++ if (filldir(dirent, ".", 1, pos, ino, DT_DIR) < 0)
++ goto out;
++ pos++;
++ /* fall through */
++ case 1:
++ ino = parent_ino(dentry);
++ if (filldir(dirent, "..", 2, pos, ino, DT_DIR) < 0)
++ goto out;
++ pos++;
++ /* fall through */
++ default:
++ index = pos - 2;
++ if (index >= size)
++ goto entries;
++ for (p += index; p->name; p++) {
++ if (proc_fill_cache(filp, dirent, filldir, p->name, p->len,
++ vs_proc_instantiate, 0, p))
++ goto out;
++ pos++;
++ }
++ entries:
++ index = pos - size;
++ p = &nx_virtnet_stuff[size - 1];
++ nr_nids = get_nid_list(index, nid_array, PROC_MAXVIDS);
++ for (i = 0; i < nr_nids; i++) {
++ int n, nid = nid_array[i];
++ unsigned int j = PROC_NUMBUF;
++
++ n = nid;
++ do
++ buf[--j] = '0' + (n % 10);
++ while (n /= 10);
++
++ if (proc_fill_cache(filp, dirent, filldir,
++ buf + j, PROC_NUMBUF - j,
++ vs_proc_instantiate, nid, p))
++ goto out;
++ pos++;
++ }
++ }
++out:
++ filp->f_pos = pos;
++ return 0;
++}
++
++static int proc_virtnet_getattr(struct vfsmount *mnt,
++ struct dentry *dentry, struct kstat *stat)
++{
++ struct inode *inode = dentry->d_inode;
++
++ generic_fillattr(inode, stat);
++ stat->nlink = 2 + atomic_read(&nx_global_cactive);
++ return 0;
++}
++
++static struct file_operations proc_virtnet_dir_operations = {
++ .read = generic_read_dir,
++ .readdir = proc_virtnet_readdir,
++};
++
++static struct inode_operations proc_virtnet_dir_inode_operations = {
++ .getattr = proc_virtnet_getattr,
++ .lookup = proc_virtnet_lookup,
++};
++
++
++
++void proc_vx_init(void)
++{
++ struct proc_dir_entry *ent;
++
++ ent = proc_mkdir("virtual", 0);
++ if (ent) {
++ ent->proc_fops = &proc_virtual_dir_operations;
++ ent->proc_iops = &proc_virtual_dir_inode_operations;
++ }
++ proc_virtual = ent;
++
++ ent = proc_mkdir("virtnet", 0);
++ if (ent) {
++ ent->proc_fops = &proc_virtnet_dir_operations;
++ ent->proc_iops = &proc_virtnet_dir_inode_operations;
++ }
++ proc_virtnet = ent;
++}
++
++
++
++
++/* per pid info */
++
++
++int proc_pid_vx_info(struct task_struct *p, char *buffer)
++{
++ struct vx_info *vxi;
++ char *orig = buffer;
++
++ buffer += sprintf(buffer, "XID:\t%d\n", vx_task_xid(p));
++
++ vxi = task_get_vx_info(p);
++ if (!vxi)
++ goto out;
++
++ buffer += sprintf(buffer, "BCaps:\t");
++ buffer = print_cap_t(buffer, &vxi->vx_bcaps);
++ buffer += sprintf(buffer, "\n");
++ buffer += sprintf(buffer, "CCaps:\t%016llx\n",
++ (unsigned long long)vxi->vx_ccaps);
++ buffer += sprintf(buffer, "CFlags:\t%016llx\n",
++ (unsigned long long)vxi->vx_flags);
++ buffer += sprintf(buffer, "CIPid:\t%d\n", vxi->vx_initpid);
++
++ put_vx_info(vxi);
++out:
++ return buffer - orig;
++}
++
++
++int proc_pid_nx_info(struct task_struct *p, char *buffer)
++{
++ struct nx_info *nxi;
++ struct nx_addr_v4 *v4a;
++#ifdef CONFIG_IPV6
++ struct nx_addr_v6 *v6a;
++#endif
++ char *orig = buffer;
++ int i;
++
++ buffer += sprintf(buffer, "NID:\t%d\n", nx_task_nid(p));
++
++ nxi = task_get_nx_info(p);
++ if (!nxi)
++ goto out;
++
++ buffer += sprintf(buffer, "NCaps:\t%016llx\n",
++ (unsigned long long)nxi->nx_ncaps);
++ buffer += sprintf(buffer, "NFlags:\t%016llx\n",
++ (unsigned long long)nxi->nx_flags);
++
++ buffer += sprintf(buffer,
++ "V4Root[bcast]:\t" NIPQUAD_FMT "\n",
++ NIPQUAD(nxi->v4_bcast.s_addr));
++ buffer += sprintf (buffer,
++ "V4Root[lback]:\t" NIPQUAD_FMT "\n",
++ NIPQUAD(nxi->v4_lback.s_addr));
++ if (!NX_IPV4(nxi))
++ goto skip_v4;
++ for (i = 0, v4a = &nxi->v4; v4a; i++, v4a = v4a->next)
++ buffer += sprintf(buffer, "V4Root[%d]:\t" NXAV4_FMT "\n",
++ i, NXAV4(v4a));
++skip_v4:
++#ifdef CONFIG_IPV6
++ if (!NX_IPV6(nxi))
++ goto skip_v6;
++ for (i = 0, v6a = &nxi->v6; v6a; i++, v6a = v6a->next)
++ buffer += sprintf(buffer, "V6Root[%d]:\t" NXAV6_FMT "\n",
++ i, NXAV6(v6a));
++skip_v6:
++#endif
++ put_nx_info(nxi);
++out:
++ return buffer - orig;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/sched.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/sched.c
+--- linux-2.6.32.1/kernel/vserver/sched.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/sched.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,414 @@
++/*
++ * linux/kernel/vserver/sched.c
++ *
++ * Virtual Server: Scheduler Support
++ *
++ * Copyright (C) 2004-2007 Herbert Pötzl
++ *
++ * V0.01 adapted Sam Vilains version to 2.6.3
++ * V0.02 removed legacy interface
++ * V0.03 changed vcmds to vxi arg
++ * V0.04 removed older and legacy interfaces
++ *
++ */
++
++#include <linux/vs_context.h>
++#include <linux/vs_sched.h>
++#include <linux/vserver/sched_cmd.h>
++
++#include <asm/uaccess.h>
++
++
++#define vxd_check_range(val, min, max) do { \
++ vxlprintk((val < min) || (val > max), \
++ "check_range(%ld,%ld,%ld)", \
++ (long)val, (long)min, (long)max, \
++ __FILE__, __LINE__); \
++ } while (0)
++
++
++void vx_update_sched_param(struct _vx_sched *sched,
++ struct _vx_sched_pc *sched_pc)
++{
++ unsigned int set_mask = sched->update_mask;
++
++ if (set_mask & VXSM_FILL_RATE)
++ sched_pc->fill_rate[0] = sched->fill_rate[0];
++ if (set_mask & VXSM_INTERVAL)
++ sched_pc->interval[0] = sched->interval[0];
++ if (set_mask & VXSM_FILL_RATE2)
++ sched_pc->fill_rate[1] = sched->fill_rate[1];
++ if (set_mask & VXSM_INTERVAL2)
++ sched_pc->interval[1] = sched->interval[1];
++ if (set_mask & VXSM_TOKENS)
++ sched_pc->tokens = sched->tokens;
++ if (set_mask & VXSM_TOKENS_MIN)
++ sched_pc->tokens_min = sched->tokens_min;
++ if (set_mask & VXSM_TOKENS_MAX)
++ sched_pc->tokens_max = sched->tokens_max;
++ if (set_mask & VXSM_PRIO_BIAS)
++ sched_pc->prio_bias = sched->prio_bias;
++
++ if (set_mask & VXSM_IDLE_TIME)
++ sched_pc->flags |= VXSF_IDLE_TIME;
++ else
++ sched_pc->flags &= ~VXSF_IDLE_TIME;
++
++ /* reset time */
++ sched_pc->norm_time = jiffies;
++}
++
++
++/*
++ * recalculate the context's scheduling tokens
++ *
++ * ret > 0 : number of tokens available
++ * ret < 0 : on hold, check delta_min[]
++ * -1 only jiffies
++ * -2 also idle time
++ *
++ */
++int vx_tokens_recalc(struct _vx_sched_pc *sched_pc,
++ unsigned long *norm_time, unsigned long *idle_time, int delta_min[2])
++{
++ long delta;
++ long tokens = 0;
++ int flags = sched_pc->flags;
++
++ /* how much time did pass? */
++ delta = *norm_time - sched_pc->norm_time;
++ // printk("@ %ld, %ld, %ld\n", *norm_time, sched_pc->norm_time, jiffies);
++ vxd_check_range(delta, 0, INT_MAX);
++
++ if (delta >= sched_pc->interval[0]) {
++ long tokens, integral;
++
++ /* calc integral token part */
++ tokens = delta / sched_pc->interval[0];
++ integral = tokens * sched_pc->interval[0];
++ tokens *= sched_pc->fill_rate[0];
++#ifdef CONFIG_VSERVER_HARDCPU
++ delta_min[0] = delta - integral;
++ vxd_check_range(delta_min[0], 0, sched_pc->interval[0]);
++#endif
++ /* advance time */
++ sched_pc->norm_time += delta;
++
++ /* add tokens */
++ sched_pc->tokens += tokens;
++ sched_pc->token_time += tokens;
++ } else
++ delta_min[0] = delta;
++
++#ifdef CONFIG_VSERVER_IDLETIME
++ if (!(flags & VXSF_IDLE_TIME))
++ goto skip_idle;
++
++ /* how much was the idle skip? */
++ delta = *idle_time - sched_pc->idle_time;
++ vxd_check_range(delta, 0, INT_MAX);
++
++ if (delta >= sched_pc->interval[1]) {
++ long tokens, integral;
++
++ /* calc fair share token part */
++ tokens = delta / sched_pc->interval[1];
++ integral = tokens * sched_pc->interval[1];
++ tokens *= sched_pc->fill_rate[1];
++ delta_min[1] = delta - integral;
++ vxd_check_range(delta_min[1], 0, sched_pc->interval[1]);
++
++ /* advance idle time */
++ sched_pc->idle_time += integral;
++
++ /* add tokens */
++ sched_pc->tokens += tokens;
++ sched_pc->token_time += tokens;
++ } else
++ delta_min[1] = delta;
++skip_idle:
++#endif
++
++ /* clip at maximum */
++ if (sched_pc->tokens > sched_pc->tokens_max)
++ sched_pc->tokens = sched_pc->tokens_max;
++ tokens = sched_pc->tokens;
++
++ if ((flags & VXSF_ONHOLD)) {
++ /* can we unhold? */
++ if (tokens >= sched_pc->tokens_min) {
++ flags &= ~VXSF_ONHOLD;
++ sched_pc->hold_ticks +=
++ *norm_time - sched_pc->onhold;
++ } else
++ goto on_hold;
++ } else {
++ /* put on hold? */
++ if (tokens <= 0) {
++ flags |= VXSF_ONHOLD;
++ sched_pc->onhold = *norm_time;
++ goto on_hold;
++ }
++ }
++ sched_pc->flags = flags;
++ return tokens;
++
++on_hold:
++ tokens = sched_pc->tokens_min - tokens;
++ sched_pc->flags = flags;
++ // BUG_ON(tokens < 0); probably doesn't hold anymore
++
++#ifdef CONFIG_VSERVER_HARDCPU
++ /* next interval? */
++ if (!sched_pc->fill_rate[0])
++ delta_min[0] = HZ;
++ else if (tokens > sched_pc->fill_rate[0])
++ delta_min[0] += sched_pc->interval[0] *
++ tokens / sched_pc->fill_rate[0];
++ else
++ delta_min[0] = sched_pc->interval[0] - delta_min[0];
++ vxd_check_range(delta_min[0], 0, INT_MAX);
++
++#ifdef CONFIG_VSERVER_IDLETIME
++ if (!(flags & VXSF_IDLE_TIME))
++ return -1;
++
++ /* next interval? */
++ if (!sched_pc->fill_rate[1])
++ delta_min[1] = HZ;
++ else if (tokens > sched_pc->fill_rate[1])
++ delta_min[1] += sched_pc->interval[1] *
++ tokens / sched_pc->fill_rate[1];
++ else
++ delta_min[1] = sched_pc->interval[1] - delta_min[1];
++ vxd_check_range(delta_min[1], 0, INT_MAX);
++
++ return -2;
++#else
++ return -1;
++#endif /* CONFIG_VSERVER_IDLETIME */
++#else
++ return 0;
++#endif /* CONFIG_VSERVER_HARDCPU */
++}
++
++static inline unsigned long msec_to_ticks(unsigned long msec)
++{
++ return msecs_to_jiffies(msec);
++}
++
++static inline unsigned long ticks_to_msec(unsigned long ticks)
++{
++ return jiffies_to_msecs(ticks);
++}
++
++static inline unsigned long ticks_to_usec(unsigned long ticks)
++{
++ return jiffies_to_usecs(ticks);
++}
++
++
++static int do_set_sched(struct vx_info *vxi, struct vcmd_sched_v5 *data)
++{
++ unsigned int set_mask = data->mask;
++ unsigned int update_mask;
++ int i, cpu;
++
++ /* Sanity check data values */
++ if (data->tokens_max <= 0)
++ data->tokens_max = HZ;
++ if (data->tokens_min < 0)
++ data->tokens_min = HZ / 3;
++ if (data->tokens_min >= data->tokens_max)
++ data->tokens_min = data->tokens_max;
++
++ if (data->prio_bias > MAX_PRIO_BIAS)
++ data->prio_bias = MAX_PRIO_BIAS;
++ if (data->prio_bias < MIN_PRIO_BIAS)
++ data->prio_bias = MIN_PRIO_BIAS;
++
++ spin_lock(&vxi->sched.tokens_lock);
++
++ /* sync up on delayed updates */
++ for_each_cpu_mask(cpu, vxi->sched.update)
++ vx_update_sched_param(&vxi->sched,
++ &vx_per_cpu(vxi, sched_pc, cpu));
++
++ if (set_mask & VXSM_FILL_RATE)
++ vxi->sched.fill_rate[0] = data->fill_rate[0];
++ if (set_mask & VXSM_FILL_RATE2)
++ vxi->sched.fill_rate[1] = data->fill_rate[1];
++ if (set_mask & VXSM_INTERVAL)
++ vxi->sched.interval[0] = (set_mask & VXSM_MSEC) ?
++ msec_to_ticks(data->interval[0]) : data->interval[0];
++ if (set_mask & VXSM_INTERVAL2)
++ vxi->sched.interval[1] = (set_mask & VXSM_MSEC) ?
++ msec_to_ticks(data->interval[1]) : data->interval[1];
++ if (set_mask & VXSM_TOKENS)
++ vxi->sched.tokens = data->tokens;
++ if (set_mask & VXSM_TOKENS_MIN)
++ vxi->sched.tokens_min = data->tokens_min;
++ if (set_mask & VXSM_TOKENS_MAX)
++ vxi->sched.tokens_max = data->tokens_max;
++ if (set_mask & VXSM_PRIO_BIAS)
++ vxi->sched.prio_bias = data->prio_bias;
++
++ /* Sanity check rate/interval */
++ for (i = 0; i < 2; i++) {
++ if (data->fill_rate[i] < 0)
++ data->fill_rate[i] = 0;
++ if (data->interval[i] <= 0)
++ data->interval[i] = HZ;
++ }
++
++ update_mask = vxi->sched.update_mask & VXSM_SET_MASK;
++ update_mask |= (set_mask & (VXSM_SET_MASK | VXSM_IDLE_TIME));
++ vxi->sched.update_mask = update_mask;
++
++#ifdef CONFIG_SMP
++ rmb();
++ if (set_mask & VXSM_CPU_ID) {
++ vxi->sched.update = cpumask_of_cpu(data->cpu_id);
++ cpus_and(vxi->sched.update, cpu_online_map,
++ vxi->sched.update);
++ } else
++ vxi->sched.update = cpu_online_map;
++
++ /* forced reload? */
++ if (set_mask & VXSM_FORCE) {
++ for_each_cpu_mask(cpu, vxi->sched.update)
++ vx_update_sched_param(&vxi->sched,
++ &vx_per_cpu(vxi, sched_pc, cpu));
++ vxi->sched.update = CPU_MASK_NONE;
++ }
++#else
++ /* on UP we update immediately */
++ vx_update_sched_param(&vxi->sched,
++ &vx_per_cpu(vxi, sched_pc, 0));
++#endif
++
++ spin_unlock(&vxi->sched.tokens_lock);
++ return 0;
++}
++
++
++#define COPY_IDS(C) C(cpu_id); C(bucket_id)
++#define COPY_PRI(C) C(prio_bias)
++#define COPY_TOK(C) C(tokens); C(tokens_min); C(tokens_max)
++#define COPY_FRI(C) C(fill_rate[0]); C(interval[0]); \
++ C(fill_rate[1]); C(interval[1]);
++
++#define COPY_VALUE(name) vc_data.name = data->name
++
++static int do_set_sched_v4(struct vx_info *vxi, struct vcmd_set_sched_v4 *data)
++{
++ struct vcmd_sched_v5 vc_data;
++
++ vc_data.mask = data->set_mask;
++ COPY_IDS(COPY_VALUE);
++ COPY_PRI(COPY_VALUE);
++ COPY_TOK(COPY_VALUE);
++ vc_data.fill_rate[0] = vc_data.fill_rate[1] = data->fill_rate;
++ vc_data.interval[0] = vc_data.interval[1] = data->interval;
++ return do_set_sched(vxi, &vc_data);
++}
++
++int vc_set_sched_v4(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_sched_v4 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_sched_v4(vxi, &vc_data);
++}
++
++ /* latest interface is v5 */
++
++int vc_set_sched(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_sched_v5 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_sched(vxi, &vc_data);
++}
++
++
++#define COPY_PRI(C) C(prio_bias)
++#define COPY_TOK(C) C(tokens); C(tokens_min); C(tokens_max)
++#define COPY_FRI(C) C(fill_rate[0]); C(interval[0]); \
++ C(fill_rate[1]); C(interval[1]);
++
++#define COPY_VALUE(name) vc_data.name = data->name
++
++
++int vc_get_sched(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_sched_v5 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ if (vc_data.mask & VXSM_CPU_ID) {
++ int cpu = vc_data.cpu_id;
++ struct _vx_sched_pc *data;
++
++ if (!cpu_possible(cpu))
++ return -EINVAL;
++
++ data = &vx_per_cpu(vxi, sched_pc, cpu);
++ COPY_TOK(COPY_VALUE);
++ COPY_PRI(COPY_VALUE);
++ COPY_FRI(COPY_VALUE);
++
++ if (data->flags & VXSF_IDLE_TIME)
++ vc_data.mask |= VXSM_IDLE_TIME;
++ } else {
++ struct _vx_sched *data = &vxi->sched;
++
++ COPY_TOK(COPY_VALUE);
++ COPY_PRI(COPY_VALUE);
++ COPY_FRI(COPY_VALUE);
++ }
++
++ if (vc_data.mask & VXSM_MSEC) {
++ vc_data.interval[0] = ticks_to_msec(vc_data.interval[0]);
++ vc_data.interval[1] = ticks_to_msec(vc_data.interval[1]);
++ }
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++int vc_sched_info(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_sched_info vc_data;
++ int cpu;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ cpu = vc_data.cpu_id;
++ if (!cpu_possible(cpu))
++ return -EINVAL;
++
++ if (vxi) {
++ struct _vx_sched_pc *sched_pc =
++ &vx_per_cpu(vxi, sched_pc, cpu);
++
++ vc_data.user_msec = ticks_to_msec(sched_pc->user_ticks);
++ vc_data.sys_msec = ticks_to_msec(sched_pc->sys_ticks);
++ vc_data.hold_msec = ticks_to_msec(sched_pc->hold_ticks);
++ vc_data.vavavoom = sched_pc->vavavoom;
++ }
++ vc_data.token_usec = ticks_to_usec(1);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/sched_init.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/sched_init.h
+--- linux-2.6.32.1/kernel/vserver/sched_init.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/sched_init.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,50 @@
++
++static inline void vx_info_init_sched(struct _vx_sched *sched)
++{
++ static struct lock_class_key tokens_lock_key;
++
++ /* scheduling; hard code starting values as constants */
++ sched->fill_rate[0] = 1;
++ sched->interval[0] = 4;
++ sched->fill_rate[1] = 1;
++ sched->interval[1] = 8;
++ sched->tokens = HZ >> 2;
++ sched->tokens_min = HZ >> 4;
++ sched->tokens_max = HZ >> 1;
++ sched->tokens_lock = SPIN_LOCK_UNLOCKED;
++ sched->prio_bias = 0;
++
++ lockdep_set_class(&sched->tokens_lock, &tokens_lock_key);
++}
++
++static inline
++void vx_info_init_sched_pc(struct _vx_sched_pc *sched_pc, int cpu)
++{
++ sched_pc->fill_rate[0] = 1;
++ sched_pc->interval[0] = 4;
++ sched_pc->fill_rate[1] = 1;
++ sched_pc->interval[1] = 8;
++ sched_pc->tokens = HZ >> 2;
++ sched_pc->tokens_min = HZ >> 4;
++ sched_pc->tokens_max = HZ >> 1;
++ sched_pc->prio_bias = 0;
++ sched_pc->vavavoom = 0;
++ sched_pc->token_time = 0;
++ sched_pc->idle_time = 0;
++ sched_pc->norm_time = jiffies;
++
++ sched_pc->user_ticks = 0;
++ sched_pc->sys_ticks = 0;
++ sched_pc->hold_ticks = 0;
++}
++
++static inline void vx_info_exit_sched(struct _vx_sched *sched)
++{
++ return;
++}
++
++static inline
++void vx_info_exit_sched_pc(struct _vx_sched_pc *sched_pc, int cpu)
++{
++ return;
++}
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/sched_proc.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/sched_proc.h
+--- linux-2.6.32.1/kernel/vserver/sched_proc.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/sched_proc.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,57 @@
++#ifndef _VX_SCHED_PROC_H
++#define _VX_SCHED_PROC_H
++
++
++static inline
++int vx_info_proc_sched(struct _vx_sched *sched, char *buffer)
++{
++ int length = 0;
++
++ length += sprintf(buffer,
++ "FillRate:\t%8d,%d\n"
++ "Interval:\t%8d,%d\n"
++ "TokensMin:\t%8d\n"
++ "TokensMax:\t%8d\n"
++ "PrioBias:\t%8d\n",
++ sched->fill_rate[0],
++ sched->fill_rate[1],
++ sched->interval[0],
++ sched->interval[1],
++ sched->tokens_min,
++ sched->tokens_max,
++ sched->prio_bias);
++ return length;
++}
++
++static inline
++int vx_info_proc_sched_pc(struct _vx_sched_pc *sched_pc,
++ char *buffer, int cpu)
++{
++ int length = 0;
++
++ length += sprintf(buffer + length,
++ "cpu %d: %lld %lld %lld %ld %ld", cpu,
++ (unsigned long long)sched_pc->user_ticks,
++ (unsigned long long)sched_pc->sys_ticks,
++ (unsigned long long)sched_pc->hold_ticks,
++ sched_pc->token_time,
++ sched_pc->idle_time);
++ length += sprintf(buffer + length,
++ " %c%c %d %d %d %d/%d %d/%d",
++ (sched_pc->flags & VXSF_ONHOLD) ? 'H' : 'R',
++ (sched_pc->flags & VXSF_IDLE_TIME) ? 'I' : '-',
++ sched_pc->tokens,
++ sched_pc->tokens_min,
++ sched_pc->tokens_max,
++ sched_pc->fill_rate[0],
++ sched_pc->interval[0],
++ sched_pc->fill_rate[1],
++ sched_pc->interval[1]);
++ length += sprintf(buffer + length,
++ " %d %d\n",
++ sched_pc->prio_bias,
++ sched_pc->vavavoom);
++ return length;
++}
++
++#endif /* _VX_SCHED_PROC_H */
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/signal.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/signal.c
+--- linux-2.6.32.1/kernel/vserver/signal.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/signal.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,132 @@
++/*
++ * linux/kernel/vserver/signal.c
++ *
++ * Virtual Server: Signal Support
++ *
++ * Copyright (C) 2003-2007 Herbert Pötzl
++ *
++ * V0.01 broken out from vcontext V0.05
++ * V0.02 changed vcmds to vxi arg
++ * V0.03 adjusted siginfo for kill
++ *
++ */
++
++#include <asm/uaccess.h>
++
++#include <linux/vs_context.h>
++#include <linux/vs_pid.h>
++#include <linux/vserver/signal_cmd.h>
++
++
++int vx_info_kill(struct vx_info *vxi, int pid, int sig)
++{
++ int retval, count = 0;
++ struct task_struct *p;
++ struct siginfo *sip = SEND_SIG_PRIV;
++
++ retval = -ESRCH;
++ vxdprintk(VXD_CBIT(misc, 4),
++ "vx_info_kill(%p[#%d],%d,%d)*",
++ vxi, vxi->vx_id, pid, sig);
++ read_lock(&tasklist_lock);
++ switch (pid) {
++ case 0:
++ case -1:
++ for_each_process(p) {
++ int err = 0;
++
++ if (vx_task_xid(p) != vxi->vx_id || p->pid <= 1 ||
++ (pid && vxi->vx_initpid == p->pid))
++ continue;
++
++ err = group_send_sig_info(sig, sip, p);
++ ++count;
++ if (err != -EPERM)
++ retval = err;
++ }
++ break;
++
++ case 1:
++ if (vxi->vx_initpid) {
++ pid = vxi->vx_initpid;
++ /* for now, only SIGINT to private init ... */
++ if (!vx_info_flags(vxi, VXF_STATE_ADMIN, 0) &&
++ /* ... as long as there are tasks left */
++ (atomic_read(&vxi->vx_tasks) > 1))
++ sig = SIGINT;
++ }
++ /* fallthrough */
++ default:
++ p = find_task_by_real_pid(pid);
++ if (p) {
++ if (vx_task_xid(p) == vxi->vx_id)
++ retval = group_send_sig_info(sig, sip, p);
++ }
++ break;
++ }
++ read_unlock(&tasklist_lock);
++ vxdprintk(VXD_CBIT(misc, 4),
++ "vx_info_kill(%p[#%d],%d,%d,%ld) = %d",
++ vxi, vxi->vx_id, pid, sig, (long)sip, retval);
++ return retval;
++}
++
++int vc_ctx_kill(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_kill_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ /* special check to allow guest shutdown */
++ if (!vx_info_flags(vxi, VXF_STATE_ADMIN, 0) &&
++ /* forbid killall pid=0 when init is present */
++ (((vc_data.pid < 1) && vxi->vx_initpid) ||
++ (vc_data.pid > 1)))
++ return -EACCES;
++
++ return vx_info_kill(vxi, vc_data.pid, vc_data.sig);
++}
++
++
++static int __wait_exit(struct vx_info *vxi)
++{
++ DECLARE_WAITQUEUE(wait, current);
++ int ret = 0;
++
++ add_wait_queue(&vxi->vx_wait, &wait);
++ set_current_state(TASK_INTERRUPTIBLE);
++
++wait:
++ if (vx_info_state(vxi,
++ VXS_SHUTDOWN | VXS_HASHED | VXS_HELPER) == VXS_SHUTDOWN)
++ goto out;
++ if (signal_pending(current)) {
++ ret = -ERESTARTSYS;
++ goto out;
++ }
++ schedule();
++ goto wait;
++
++out:
++ set_current_state(TASK_RUNNING);
++ remove_wait_queue(&vxi->vx_wait, &wait);
++ return ret;
++}
++
++
++
++int vc_wait_exit(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_wait_exit_v0 vc_data;
++ int ret;
++
++ ret = __wait_exit(vxi);
++ vc_data.reboot_cmd = vxi->reboot_cmd;
++ vc_data.exit_code = vxi->exit_code;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ ret = -EFAULT;
++ return ret;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/space.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/space.c
+--- linux-2.6.32.1/kernel/vserver/space.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/space.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,375 @@
++/*
++ * linux/kernel/vserver/space.c
++ *
++ * Virtual Server: Context Space Support
++ *
++ * Copyright (C) 2003-2007 Herbert Pötzl
++ *
++ * V0.01 broken out from context.c 0.07
++ * V0.02 added task locking for namespace
++ * V0.03 broken out vx_enter_namespace
++ * V0.04 added *space support and commands
++ *
++ */
++
++#include <linux/utsname.h>
++#include <linux/nsproxy.h>
++#include <linux/err.h>
++#include <linux/fs_struct.h>
++#include <asm/uaccess.h>
++
++#include <linux/vs_context.h>
++#include <linux/vserver/space.h>
++#include <linux/vserver/space_cmd.h>
++
++atomic_t vs_global_nsproxy = ATOMIC_INIT(0);
++atomic_t vs_global_fs = ATOMIC_INIT(0);
++atomic_t vs_global_mnt_ns = ATOMIC_INIT(0);
++atomic_t vs_global_uts_ns = ATOMIC_INIT(0);
++atomic_t vs_global_user_ns = ATOMIC_INIT(0);
++atomic_t vs_global_pid_ns = ATOMIC_INIT(0);
++
++
++/* namespace functions */
++
++#include <linux/mnt_namespace.h>
++#include <linux/user_namespace.h>
++#include <linux/pid_namespace.h>
++#include <linux/ipc_namespace.h>
++#include <net/net_namespace.h>
++
++
++static const struct vcmd_space_mask_v1 space_mask_v0 = {
++ .mask = CLONE_FS |
++ CLONE_NEWNS |
++ CLONE_NEWUTS |
++ CLONE_NEWIPC |
++ CLONE_NEWUSER |
++ 0
++};
++
++static const struct vcmd_space_mask_v1 space_mask = {
++ .mask = CLONE_FS |
++ CLONE_NEWNS |
++ CLONE_NEWUTS |
++ CLONE_NEWIPC |
++ CLONE_NEWUSER |
++#ifdef CONFIG_PID_NS
++ CLONE_NEWPID |
++#endif
++#ifdef CONFIG_NET_NS
++ CLONE_NEWNET |
++#endif
++ 0
++};
++
++static const struct vcmd_space_mask_v1 default_space_mask = {
++ .mask = CLONE_FS |
++ CLONE_NEWNS |
++ CLONE_NEWUTS |
++ CLONE_NEWIPC |
++ CLONE_NEWUSER |
++#ifdef CONFIG_PID_NS
++// CLONE_NEWPID |
++#endif
++ 0
++};
++
++/*
++ * build a new nsproxy mix
++ * assumes that both proxies are 'const'
++ * does not touch nsproxy refcounts
++ * will hold a reference on the result.
++ */
++
++struct nsproxy *vs_mix_nsproxy(struct nsproxy *old_nsproxy,
++ struct nsproxy *new_nsproxy, unsigned long mask)
++{
++ struct mnt_namespace *old_ns;
++ struct uts_namespace *old_uts;
++ struct ipc_namespace *old_ipc;
++#ifdef CONFIG_PID_NS
++ struct pid_namespace *old_pid;
++#endif
++#ifdef CONFIG_NET_NS
++ struct net *old_net;
++#endif
++ struct nsproxy *nsproxy;
++
++ nsproxy = copy_nsproxy(old_nsproxy);
++ if (!nsproxy)
++ goto out;
++
++ if (mask & CLONE_NEWNS) {
++ old_ns = nsproxy->mnt_ns;
++ nsproxy->mnt_ns = new_nsproxy->mnt_ns;
++ if (nsproxy->mnt_ns)
++ get_mnt_ns(nsproxy->mnt_ns);
++ } else
++ old_ns = NULL;
++
++ if (mask & CLONE_NEWUTS) {
++ old_uts = nsproxy->uts_ns;
++ nsproxy->uts_ns = new_nsproxy->uts_ns;
++ if (nsproxy->uts_ns)
++ get_uts_ns(nsproxy->uts_ns);
++ } else
++ old_uts = NULL;
++
++ if (mask & CLONE_NEWIPC) {
++ old_ipc = nsproxy->ipc_ns;
++ nsproxy->ipc_ns = new_nsproxy->ipc_ns;
++ if (nsproxy->ipc_ns)
++ get_ipc_ns(nsproxy->ipc_ns);
++ } else
++ old_ipc = NULL;
++
++#ifdef CONFIG_PID_NS
++ if (mask & CLONE_NEWPID) {
++ old_pid = nsproxy->pid_ns;
++ nsproxy->pid_ns = new_nsproxy->pid_ns;
++ if (nsproxy->pid_ns)
++ get_pid_ns(nsproxy->pid_ns);
++ } else
++ old_pid = NULL;
++#endif
++#ifdef CONFIG_NET_NS
++ if (mask & CLONE_NEWNET) {
++ old_net = nsproxy->net_ns;
++ nsproxy->net_ns = new_nsproxy->net_ns;
++ if (nsproxy->net_ns)
++ get_net(nsproxy->net_ns);
++ } else
++ old_net = NULL;
++#endif
++ if (old_ns)
++ put_mnt_ns(old_ns);
++ if (old_uts)
++ put_uts_ns(old_uts);
++ if (old_ipc)
++ put_ipc_ns(old_ipc);
++#ifdef CONFIG_PID_NS
++ if (old_pid)
++ put_pid_ns(old_pid);
++#endif
++#ifdef CONFIG_NET_NS
++ if (old_net)
++ put_net(old_net);
++#endif
++out:
++ return nsproxy;
++}
++
++
++/*
++ * merge two nsproxy structs into a new one.
++ * will hold a reference on the result.
++ */
++
++static inline
++struct nsproxy *__vs_merge_nsproxy(struct nsproxy *old,
++ struct nsproxy *proxy, unsigned long mask)
++{
++ struct nsproxy null_proxy = { .mnt_ns = NULL };
++
++ if (!proxy)
++ return NULL;
++
++ if (mask) {
++ /* vs_mix_nsproxy returns with reference */
++ return vs_mix_nsproxy(old ? old : &null_proxy,
++ proxy, mask);
++ }
++ get_nsproxy(proxy);
++ return proxy;
++}
++
++
++int vx_enter_space(struct vx_info *vxi, unsigned long mask, unsigned index)
++{
++ struct nsproxy *proxy, *proxy_cur, *proxy_new;
++ struct fs_struct *fs_cur, *fs = NULL;
++ int ret, kill = 0;
++
++ vxdprintk(VXD_CBIT(space, 8), "vx_enter_space(%p[#%u],0x%08lx,%d)",
++ vxi, vxi->vx_id, mask, index);
++
++ if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0))
++ return -EACCES;
++
++ if (!mask)
++ mask = vxi->vx_nsmask[index];
++
++ if ((mask & vxi->vx_nsmask[index]) != mask)
++ return -EINVAL;
++
++ if (mask & CLONE_FS) {
++ fs = copy_fs_struct(vxi->vx_fs[index]);
++ if (!fs)
++ return -ENOMEM;
++ }
++ proxy = vxi->vx_nsproxy[index];
++
++ vxdprintk(VXD_CBIT(space, 9),
++ "vx_enter_space(%p[#%u],0x%08lx,%d) -> (%p,%p)",
++ vxi, vxi->vx_id, mask, index, proxy, fs);
++
++ task_lock(current);
++ fs_cur = current->fs;
++
++ if (mask & CLONE_FS) {
++ write_lock(&fs_cur->lock);
++ current->fs = fs;
++ kill = !--fs_cur->users;
++ write_unlock(&fs_cur->lock);
++ }
++
++ proxy_cur = current->nsproxy;
++ get_nsproxy(proxy_cur);
++ task_unlock(current);
++
++ if (kill)
++ free_fs_struct(fs_cur);
++
++ proxy_new = __vs_merge_nsproxy(proxy_cur, proxy, mask);
++ if (IS_ERR(proxy_new)) {
++ ret = PTR_ERR(proxy_new);
++ goto out_put;
++ }
++
++ proxy_new = xchg(¤t->nsproxy, proxy_new);
++ ret = 0;
++
++ if (proxy_new)
++ put_nsproxy(proxy_new);
++out_put:
++ if (proxy_cur)
++ put_nsproxy(proxy_cur);
++ return ret;
++}
++
++
++int vx_set_space(struct vx_info *vxi, unsigned long mask, unsigned index)
++{
++ struct nsproxy *proxy_vxi, *proxy_cur, *proxy_new;
++ struct fs_struct *fs_vxi, *fs;
++ int ret, kill = 0;
++
++ vxdprintk(VXD_CBIT(space, 8), "vx_set_space(%p[#%u],0x%08lx,%d)",
++ vxi, vxi->vx_id, mask, index);
++#if 0
++ if (!mask)
++ mask = default_space_mask.mask;
++#endif
++ if ((mask & space_mask.mask) != mask)
++ return -EINVAL;
++
++ proxy_vxi = vxi->vx_nsproxy[index];
++ fs_vxi = vxi->vx_fs[index];
++
++ if (mask & CLONE_FS) {
++ fs = copy_fs_struct(current->fs);
++ if (!fs)
++ return -ENOMEM;
++ }
++
++ task_lock(current);
++
++ if (mask & CLONE_FS) {
++ write_lock(&fs_vxi->lock);
++ vxi->vx_fs[index] = fs;
++ kill = !--fs_vxi->users;
++ write_unlock(&fs_vxi->lock);
++ }
++
++ proxy_cur = current->nsproxy;
++ get_nsproxy(proxy_cur);
++ task_unlock(current);
++
++ if (kill)
++ free_fs_struct(fs_vxi);
++
++ proxy_new = __vs_merge_nsproxy(proxy_vxi, proxy_cur, mask);
++ if (IS_ERR(proxy_new)) {
++ ret = PTR_ERR(proxy_new);
++ goto out_put;
++ }
++
++ proxy_new = xchg(&vxi->vx_nsproxy[index], proxy_new);
++ vxi->vx_nsmask[index] |= mask;
++ ret = 0;
++
++ if (proxy_new)
++ put_nsproxy(proxy_new);
++out_put:
++ if (proxy_cur)
++ put_nsproxy(proxy_cur);
++ return ret;
++}
++
++
++int vc_enter_space_v1(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_space_mask_v1 vc_data = { .mask = 0 };
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return vx_enter_space(vxi, vc_data.mask, 0);
++}
++
++int vc_enter_space(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_space_mask_v2 vc_data = { .mask = 0 };
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ if (vc_data.index >= VX_SPACES)
++ return -EINVAL;
++
++ return vx_enter_space(vxi, vc_data.mask, vc_data.index);
++}
++
++int vc_set_space_v1(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_space_mask_v1 vc_data = { .mask = 0 };
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return vx_set_space(vxi, vc_data.mask, 0);
++}
++
++int vc_set_space(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_space_mask_v2 vc_data = { .mask = 0 };
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ if (vc_data.index >= VX_SPACES)
++ return -EINVAL;
++
++ return vx_set_space(vxi, vc_data.mask, vc_data.index);
++}
++
++int vc_get_space_mask(void __user *data, int type)
++{
++ const struct vcmd_space_mask_v1 *mask;
++
++ if (type == 0)
++ mask = &space_mask_v0;
++ else if (type == 1)
++ mask = &space_mask;
++ else
++ mask = &default_space_mask;
++
++ vxdprintk(VXD_CBIT(space, 10),
++ "vc_get_space_mask(%d) = %08llx", type, mask->mask);
++
++ if (copy_to_user(data, mask, sizeof(*mask)))
++ return -EFAULT;
++ return 0;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/switch.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/switch.c
+--- linux-2.6.32.1/kernel/vserver/switch.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/switch.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,546 @@
++/*
++ * linux/kernel/vserver/switch.c
++ *
++ * Virtual Server: Syscall Switch
++ *
++ * Copyright (C) 2003-2007 Herbert Pötzl
++ *
++ * V0.01 syscall switch
++ * V0.02 added signal to context
++ * V0.03 added rlimit functions
++ * V0.04 added iattr, task/xid functions
++ * V0.05 added debug/history stuff
++ * V0.06 added compat32 layer
++ * V0.07 vcmd args and perms
++ * V0.08 added status commands
++ * V0.09 added tag commands
++ * V0.10 added oom bias
++ * V0.11 added device commands
++ *
++ */
++
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vserver/switch.h>
++
++#include "vci_config.h"
++
++
++static inline
++int vc_get_version(uint32_t id)
++{
++ return VCI_VERSION;
++}
++
++static inline
++int vc_get_vci(uint32_t id)
++{
++ return vci_kernel_config();
++}
++
++#include <linux/vserver/context_cmd.h>
++#include <linux/vserver/cvirt_cmd.h>
++#include <linux/vserver/cacct_cmd.h>
++#include <linux/vserver/limit_cmd.h>
++#include <linux/vserver/network_cmd.h>
++#include <linux/vserver/sched_cmd.h>
++#include <linux/vserver/debug_cmd.h>
++#include <linux/vserver/inode_cmd.h>
++#include <linux/vserver/dlimit_cmd.h>
++#include <linux/vserver/signal_cmd.h>
++#include <linux/vserver/space_cmd.h>
++#include <linux/vserver/tag_cmd.h>
++#include <linux/vserver/device_cmd.h>
++
++#include <linux/vserver/inode.h>
++#include <linux/vserver/dlimit.h>
++
++
++#ifdef CONFIG_COMPAT
++#define __COMPAT(name, id, data, compat) \
++ (compat) ? name ## _x32(id, data) : name(id, data)
++#define __COMPAT_NO_ID(name, data, compat) \
++ (compat) ? name ## _x32(data) : name(data)
++#else
++#define __COMPAT(name, id, data, compat) \
++ name(id, data)
++#define __COMPAT_NO_ID(name, data, compat) \
++ name(data)
++#endif
++
++
++static inline
++long do_vcmd(uint32_t cmd, uint32_t id,
++ struct vx_info *vxi, struct nx_info *nxi,
++ void __user *data, int compat)
++{
++ switch (cmd) {
++
++ case VCMD_get_version:
++ return vc_get_version(id);
++ case VCMD_get_vci:
++ return vc_get_vci(id);
++
++ case VCMD_task_xid:
++ return vc_task_xid(id);
++ case VCMD_vx_info:
++ return vc_vx_info(vxi, data);
++
++ case VCMD_task_nid:
++ return vc_task_nid(id);
++ case VCMD_nx_info:
++ return vc_nx_info(nxi, data);
++
++ case VCMD_task_tag:
++ return vc_task_tag(id);
++
++ case VCMD_set_space_v1:
++ return vc_set_space_v1(vxi, data);
++ /* this is version 2 */
++ case VCMD_set_space:
++ return vc_set_space(vxi, data);
++
++ case VCMD_get_space_mask_v0:
++ return vc_get_space_mask(data, 0);
++ /* this is version 1 */
++ case VCMD_get_space_mask:
++ return vc_get_space_mask(data, 1);
++
++ case VCMD_get_space_default:
++ return vc_get_space_mask(data, -1);
++
++#ifdef CONFIG_IA32_EMULATION
++ case VCMD_get_rlimit:
++ return __COMPAT(vc_get_rlimit, vxi, data, compat);
++ case VCMD_set_rlimit:
++ return __COMPAT(vc_set_rlimit, vxi, data, compat);
++#else
++ case VCMD_get_rlimit:
++ return vc_get_rlimit(vxi, data);
++ case VCMD_set_rlimit:
++ return vc_set_rlimit(vxi, data);
++#endif
++ case VCMD_get_rlimit_mask:
++ return vc_get_rlimit_mask(id, data);
++ case VCMD_reset_hits:
++ return vc_reset_hits(vxi, data);
++ case VCMD_reset_minmax:
++ return vc_reset_minmax(vxi, data);
++
++ case VCMD_get_vhi_name:
++ return vc_get_vhi_name(vxi, data);
++ case VCMD_set_vhi_name:
++ return vc_set_vhi_name(vxi, data);
++
++ case VCMD_ctx_stat:
++ return vc_ctx_stat(vxi, data);
++ case VCMD_virt_stat:
++ return vc_virt_stat(vxi, data);
++ case VCMD_sock_stat:
++ return vc_sock_stat(vxi, data);
++ case VCMD_rlimit_stat:
++ return vc_rlimit_stat(vxi, data);
++
++ case VCMD_set_cflags:
++ return vc_set_cflags(vxi, data);
++ case VCMD_get_cflags:
++ return vc_get_cflags(vxi, data);
++
++ /* this is version 1 */
++ case VCMD_set_ccaps:
++ return vc_set_ccaps(vxi, data);
++ /* this is version 1 */
++ case VCMD_get_ccaps:
++ return vc_get_ccaps(vxi, data);
++ case VCMD_set_bcaps:
++ return vc_set_bcaps(vxi, data);
++ case VCMD_get_bcaps:
++ return vc_get_bcaps(vxi, data);
++
++ case VCMD_set_badness:
++ return vc_set_badness(vxi, data);
++ case VCMD_get_badness:
++ return vc_get_badness(vxi, data);
++
++ case VCMD_set_nflags:
++ return vc_set_nflags(nxi, data);
++ case VCMD_get_nflags:
++ return vc_get_nflags(nxi, data);
++
++ case VCMD_set_ncaps:
++ return vc_set_ncaps(nxi, data);
++ case VCMD_get_ncaps:
++ return vc_get_ncaps(nxi, data);
++
++ case VCMD_set_sched_v4:
++ return vc_set_sched_v4(vxi, data);
++ /* this is version 5 */
++ case VCMD_set_sched:
++ return vc_set_sched(vxi, data);
++ case VCMD_get_sched:
++ return vc_get_sched(vxi, data);
++ case VCMD_sched_info:
++ return vc_sched_info(vxi, data);
++
++ case VCMD_add_dlimit:
++ return __COMPAT(vc_add_dlimit, id, data, compat);
++ case VCMD_rem_dlimit:
++ return __COMPAT(vc_rem_dlimit, id, data, compat);
++ case VCMD_set_dlimit:
++ return __COMPAT(vc_set_dlimit, id, data, compat);
++ case VCMD_get_dlimit:
++ return __COMPAT(vc_get_dlimit, id, data, compat);
++
++ case VCMD_ctx_kill:
++ return vc_ctx_kill(vxi, data);
++
++ case VCMD_wait_exit:
++ return vc_wait_exit(vxi, data);
++
++ case VCMD_get_iattr:
++ return __COMPAT_NO_ID(vc_get_iattr, data, compat);
++ case VCMD_set_iattr:
++ return __COMPAT_NO_ID(vc_set_iattr, data, compat);
++
++ case VCMD_fget_iattr:
++ return vc_fget_iattr(id, data);
++ case VCMD_fset_iattr:
++ return vc_fset_iattr(id, data);
++
++ case VCMD_enter_space_v0:
++ return vc_enter_space_v1(vxi, NULL);
++ case VCMD_enter_space_v1:
++ return vc_enter_space_v1(vxi, data);
++ /* this is version 2 */
++ case VCMD_enter_space:
++ return vc_enter_space(vxi, data);
++
++ case VCMD_ctx_create_v0:
++ return vc_ctx_create(id, NULL);
++ case VCMD_ctx_create:
++ return vc_ctx_create(id, data);
++ case VCMD_ctx_migrate_v0:
++ return vc_ctx_migrate(vxi, NULL);
++ case VCMD_ctx_migrate:
++ return vc_ctx_migrate(vxi, data);
++
++ case VCMD_net_create_v0:
++ return vc_net_create(id, NULL);
++ case VCMD_net_create:
++ return vc_net_create(id, data);
++ case VCMD_net_migrate:
++ return vc_net_migrate(nxi, data);
++
++ case VCMD_tag_migrate:
++ return vc_tag_migrate(id);
++
++ case VCMD_net_add:
++ return vc_net_add(nxi, data);
++ case VCMD_net_remove:
++ return vc_net_remove(nxi, data);
++
++ case VCMD_net_add_ipv4:
++ return vc_net_add_ipv4(nxi, data);
++ case VCMD_net_remove_ipv4:
++ return vc_net_remove_ipv4(nxi, data);
++#ifdef CONFIG_IPV6
++ case VCMD_net_add_ipv6:
++ return vc_net_add_ipv6(nxi, data);
++ case VCMD_net_remove_ipv6:
++ return vc_net_remove_ipv6(nxi, data);
++#endif
++/* case VCMD_add_match_ipv4:
++ return vc_add_match_ipv4(nxi, data);
++ case VCMD_get_match_ipv4:
++ return vc_get_match_ipv4(nxi, data);
++#ifdef CONFIG_IPV6
++ case VCMD_add_match_ipv6:
++ return vc_add_match_ipv6(nxi, data);
++ case VCMD_get_match_ipv6:
++ return vc_get_match_ipv6(nxi, data);
++#endif */
++
++#ifdef CONFIG_VSERVER_DEVICE
++ case VCMD_set_mapping:
++ return __COMPAT(vc_set_mapping, vxi, data, compat);
++ case VCMD_unset_mapping:
++ return __COMPAT(vc_unset_mapping, vxi, data, compat);
++#endif
++#ifdef CONFIG_VSERVER_HISTORY
++ case VCMD_dump_history:
++ return vc_dump_history(id);
++ case VCMD_read_history:
++ return __COMPAT(vc_read_history, id, data, compat);
++#endif
++#ifdef CONFIG_VSERVER_MONITOR
++ case VCMD_read_monitor:
++ return __COMPAT(vc_read_monitor, id, data, compat);
++#endif
++ default:
++ vxwprintk_task(1, "unimplemented VCMD_%02d_%d[%d]",
++ VC_CATEGORY(cmd), VC_COMMAND(cmd), VC_VERSION(cmd));
++ }
++ return -ENOSYS;
++}
++
++
++#define __VCMD(vcmd, _perm, _args, _flags) \
++ case VCMD_ ## vcmd: perm = _perm; \
++ args = _args; flags = _flags; break
++
++
++#define VCA_NONE 0x00
++#define VCA_VXI 0x01
++#define VCA_NXI 0x02
++
++#define VCF_NONE 0x00
++#define VCF_INFO 0x01
++#define VCF_ADMIN 0x02
++#define VCF_ARES 0x06 /* includes admin */
++#define VCF_SETUP 0x08
++
++#define VCF_ZIDOK 0x10 /* zero id okay */
++
++
++static inline
++long do_vserver(uint32_t cmd, uint32_t id, void __user *data, int compat)
++{
++ long ret;
++ int permit = -1, state = 0;
++ int perm = -1, args = 0, flags = 0;
++ struct vx_info *vxi = NULL;
++ struct nx_info *nxi = NULL;
++
++ switch (cmd) {
++ /* unpriviledged commands */
++ __VCMD(get_version, 0, VCA_NONE, 0);
++ __VCMD(get_vci, 0, VCA_NONE, 0);
++ __VCMD(get_rlimit_mask, 0, VCA_NONE, 0);
++ __VCMD(get_space_mask_v0,0, VCA_NONE, 0);
++ __VCMD(get_space_mask, 0, VCA_NONE, 0);
++ __VCMD(get_space_default,0, VCA_NONE, 0);
++
++ /* info commands */
++ __VCMD(task_xid, 2, VCA_NONE, 0);
++ __VCMD(reset_hits, 2, VCA_VXI, 0);
++ __VCMD(reset_minmax, 2, VCA_VXI, 0);
++ __VCMD(vx_info, 3, VCA_VXI, VCF_INFO);
++ __VCMD(get_bcaps, 3, VCA_VXI, VCF_INFO);
++ __VCMD(get_ccaps, 3, VCA_VXI, VCF_INFO);
++ __VCMD(get_cflags, 3, VCA_VXI, VCF_INFO);
++ __VCMD(get_badness, 3, VCA_VXI, VCF_INFO);
++ __VCMD(get_vhi_name, 3, VCA_VXI, VCF_INFO);
++ __VCMD(get_rlimit, 3, VCA_VXI, VCF_INFO);
++
++ __VCMD(ctx_stat, 3, VCA_VXI, VCF_INFO);
++ __VCMD(virt_stat, 3, VCA_VXI, VCF_INFO);
++ __VCMD(sock_stat, 3, VCA_VXI, VCF_INFO);
++ __VCMD(rlimit_stat, 3, VCA_VXI, VCF_INFO);
++
++ __VCMD(task_nid, 2, VCA_NONE, 0);
++ __VCMD(nx_info, 3, VCA_NXI, VCF_INFO);
++ __VCMD(get_ncaps, 3, VCA_NXI, VCF_INFO);
++ __VCMD(get_nflags, 3, VCA_NXI, VCF_INFO);
++
++ __VCMD(task_tag, 2, VCA_NONE, 0);
++
++ __VCMD(get_iattr, 2, VCA_NONE, 0);
++ __VCMD(fget_iattr, 2, VCA_NONE, 0);
++ __VCMD(get_dlimit, 3, VCA_NONE, VCF_INFO);
++ __VCMD(get_sched, 3, VCA_VXI, VCF_INFO);
++ __VCMD(sched_info, 3, VCA_VXI, VCF_INFO | VCF_ZIDOK);
++
++ /* lower admin commands */
++ __VCMD(wait_exit, 4, VCA_VXI, VCF_INFO);
++ __VCMD(ctx_create_v0, 5, VCA_NONE, 0);
++ __VCMD(ctx_create, 5, VCA_NONE, 0);
++ __VCMD(ctx_migrate_v0, 5, VCA_VXI, VCF_ADMIN);
++ __VCMD(ctx_migrate, 5, VCA_VXI, VCF_ADMIN);
++ __VCMD(enter_space_v0, 5, VCA_VXI, VCF_ADMIN);
++ __VCMD(enter_space_v1, 5, VCA_VXI, VCF_ADMIN);
++ __VCMD(enter_space, 5, VCA_VXI, VCF_ADMIN);
++
++ __VCMD(net_create_v0, 5, VCA_NONE, 0);
++ __VCMD(net_create, 5, VCA_NONE, 0);
++ __VCMD(net_migrate, 5, VCA_NXI, VCF_ADMIN);
++
++ __VCMD(tag_migrate, 5, VCA_NONE, VCF_ADMIN);
++
++ /* higher admin commands */
++ __VCMD(ctx_kill, 6, VCA_VXI, VCF_ARES);
++ __VCMD(set_space_v1, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++ __VCMD(set_space, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++
++ __VCMD(set_ccaps, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++ __VCMD(set_bcaps, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++ __VCMD(set_cflags, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++ __VCMD(set_badness, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++
++ __VCMD(set_vhi_name, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++ __VCMD(set_rlimit, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++ __VCMD(set_sched, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++ __VCMD(set_sched_v4, 7, VCA_VXI, VCF_ARES | VCF_SETUP);
++
++ __VCMD(set_ncaps, 7, VCA_NXI, VCF_ARES | VCF_SETUP);
++ __VCMD(set_nflags, 7, VCA_NXI, VCF_ARES | VCF_SETUP);
++ __VCMD(net_add, 8, VCA_NXI, VCF_ARES | VCF_SETUP);
++ __VCMD(net_remove, 8, VCA_NXI, VCF_ARES | VCF_SETUP);
++ __VCMD(net_add_ipv4, 8, VCA_NXI, VCF_ARES | VCF_SETUP);
++ __VCMD(net_remove_ipv4, 8, VCA_NXI, VCF_ARES | VCF_SETUP);
++#ifdef CONFIG_IPV6
++ __VCMD(net_add_ipv6, 8, VCA_NXI, VCF_ARES | VCF_SETUP);
++ __VCMD(net_remove_ipv6, 8, VCA_NXI, VCF_ARES | VCF_SETUP);
++#endif
++ __VCMD(set_iattr, 7, VCA_NONE, 0);
++ __VCMD(fset_iattr, 7, VCA_NONE, 0);
++ __VCMD(set_dlimit, 7, VCA_NONE, VCF_ARES);
++ __VCMD(add_dlimit, 8, VCA_NONE, VCF_ARES);
++ __VCMD(rem_dlimit, 8, VCA_NONE, VCF_ARES);
++
++#ifdef CONFIG_VSERVER_DEVICE
++ __VCMD(set_mapping, 8, VCA_VXI, VCF_ARES|VCF_ZIDOK);
++ __VCMD(unset_mapping, 8, VCA_VXI, VCF_ARES|VCF_ZIDOK);
++#endif
++ /* debug level admin commands */
++#ifdef CONFIG_VSERVER_HISTORY
++ __VCMD(dump_history, 9, VCA_NONE, 0);
++ __VCMD(read_history, 9, VCA_NONE, 0);
++#endif
++#ifdef CONFIG_VSERVER_MONITOR
++ __VCMD(read_monitor, 9, VCA_NONE, 0);
++#endif
++
++ default:
++ perm = -1;
++ }
++
++ vxdprintk(VXD_CBIT(switch, 0),
++ "vc: VCMD_%02d_%d[%d], %d,%p [%d,%d,%x,%x]",
++ VC_CATEGORY(cmd), VC_COMMAND(cmd),
++ VC_VERSION(cmd), id, data, compat,
++ perm, args, flags);
++
++ ret = -ENOSYS;
++ if (perm < 0)
++ goto out;
++
++ state = 1;
++ if (!capable(CAP_CONTEXT))
++ goto out;
++
++ state = 2;
++ /* moved here from the individual commands */
++ ret = -EPERM;
++ if ((perm > 1) && !capable(CAP_SYS_ADMIN))
++ goto out;
++
++ state = 3;
++ /* vcmd involves resource management */
++ ret = -EPERM;
++ if ((flags & VCF_ARES) && !capable(CAP_SYS_RESOURCE))
++ goto out;
++
++ state = 4;
++ /* various legacy exceptions */
++ switch (cmd) {
++ /* will go away when spectator is a cap */
++ case VCMD_ctx_migrate_v0:
++ case VCMD_ctx_migrate:
++ if (id == 1) {
++ current->xid = 1;
++ ret = 1;
++ goto out;
++ }
++ break;
++
++ /* will go away when spectator is a cap */
++ case VCMD_net_migrate:
++ if (id == 1) {
++ current->nid = 1;
++ ret = 1;
++ goto out;
++ }
++ break;
++ }
++
++ /* vcmds are fine by default */
++ permit = 1;
++
++ /* admin type vcmds require admin ... */
++ if (flags & VCF_ADMIN)
++ permit = vx_check(0, VS_ADMIN) ? 1 : 0;
++
++ /* ... but setup type vcmds override that */
++ if (!permit && (flags & VCF_SETUP))
++ permit = vx_flags(VXF_STATE_SETUP, 0) ? 2 : 0;
++
++ state = 5;
++ ret = -EPERM;
++ if (!permit)
++ goto out;
++
++ state = 6;
++ if (!id && (flags & VCF_ZIDOK))
++ goto skip_id;
++
++ ret = -ESRCH;
++ if (args & VCA_VXI) {
++ vxi = lookup_vx_info(id);
++ if (!vxi)
++ goto out;
++
++ if ((flags & VCF_ADMIN) &&
++ /* special case kill for shutdown */
++ (cmd != VCMD_ctx_kill) &&
++ /* can context be administrated? */
++ !vx_info_flags(vxi, VXF_STATE_ADMIN, 0)) {
++ ret = -EACCES;
++ goto out_vxi;
++ }
++ }
++ state = 7;
++ if (args & VCA_NXI) {
++ nxi = lookup_nx_info(id);
++ if (!nxi)
++ goto out_vxi;
++
++ if ((flags & VCF_ADMIN) &&
++ /* can context be administrated? */
++ !nx_info_flags(nxi, NXF_STATE_ADMIN, 0)) {
++ ret = -EACCES;
++ goto out_nxi;
++ }
++ }
++skip_id:
++ state = 8;
++ ret = do_vcmd(cmd, id, vxi, nxi, data, compat);
++
++out_nxi:
++ if ((args & VCA_NXI) && nxi)
++ put_nx_info(nxi);
++out_vxi:
++ if ((args & VCA_VXI) && vxi)
++ put_vx_info(vxi);
++out:
++ vxdprintk(VXD_CBIT(switch, 1),
++ "vc: VCMD_%02d_%d[%d] = %08lx(%ld) [%d,%d]",
++ VC_CATEGORY(cmd), VC_COMMAND(cmd),
++ VC_VERSION(cmd), ret, ret, state, permit);
++ return ret;
++}
++
++asmlinkage long
++sys_vserver(uint32_t cmd, uint32_t id, void __user *data)
++{
++ return do_vserver(cmd, id, data, 0);
++}
++
++#ifdef CONFIG_COMPAT
++
++asmlinkage long
++sys32_vserver(uint32_t cmd, uint32_t id, void __user *data)
++{
++ return do_vserver(cmd, id, data, 1);
++}
++
++#endif /* CONFIG_COMPAT */
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/sysctl.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/sysctl.c
+--- linux-2.6.32.1/kernel/vserver/sysctl.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/sysctl.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,244 @@
++/*
++ * kernel/vserver/sysctl.c
++ *
++ * Virtual Context Support
++ *
++ * Copyright (C) 2004-2007 Herbert Pötzl
++ *
++ * V0.01 basic structure
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/ctype.h>
++#include <linux/sysctl.h>
++#include <linux/parser.h>
++#include <asm/uaccess.h>
++
++
++enum {
++ CTL_DEBUG_ERROR = 0,
++ CTL_DEBUG_SWITCH = 1,
++ CTL_DEBUG_XID,
++ CTL_DEBUG_NID,
++ CTL_DEBUG_TAG,
++ CTL_DEBUG_NET,
++ CTL_DEBUG_LIMIT,
++ CTL_DEBUG_CRES,
++ CTL_DEBUG_DLIM,
++ CTL_DEBUG_QUOTA,
++ CTL_DEBUG_CVIRT,
++ CTL_DEBUG_SPACE,
++ CTL_DEBUG_MISC,
++};
++
++
++unsigned int vx_debug_switch = 0;
++unsigned int vx_debug_xid = 0;
++unsigned int vx_debug_nid = 0;
++unsigned int vx_debug_tag = 0;
++unsigned int vx_debug_net = 0;
++unsigned int vx_debug_limit = 0;
++unsigned int vx_debug_cres = 0;
++unsigned int vx_debug_dlim = 0;
++unsigned int vx_debug_quota = 0;
++unsigned int vx_debug_cvirt = 0;
++unsigned int vx_debug_space = 0;
++unsigned int vx_debug_misc = 0;
++
++
++static struct ctl_table_header *vserver_table_header;
++static ctl_table vserver_root_table[];
++
++
++void vserver_register_sysctl(void)
++{
++ if (!vserver_table_header) {
++ vserver_table_header = register_sysctl_table(vserver_root_table);
++ }
++
++}
++
++void vserver_unregister_sysctl(void)
++{
++ if (vserver_table_header) {
++ unregister_sysctl_table(vserver_table_header);
++ vserver_table_header = NULL;
++ }
++}
++
++
++static int proc_dodebug(ctl_table *table, int write,
++ struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos)
++{
++ char tmpbuf[20], *p, c;
++ unsigned int value;
++ size_t left, len;
++
++ if ((*ppos && !write) || !*lenp) {
++ *lenp = 0;
++ return 0;
++ }
++
++ left = *lenp;
++
++ if (write) {
++ if (!access_ok(VERIFY_READ, buffer, left))
++ return -EFAULT;
++ p = (char *)buffer;
++ while (left && __get_user(c, p) >= 0 && isspace(c))
++ left--, p++;
++ if (!left)
++ goto done;
++
++ if (left > sizeof(tmpbuf) - 1)
++ return -EINVAL;
++ if (copy_from_user(tmpbuf, p, left))
++ return -EFAULT;
++ tmpbuf[left] = '\0';
++
++ for (p = tmpbuf, value = 0; '0' <= *p && *p <= '9'; p++, left--)
++ value = 10 * value + (*p - '0');
++ if (*p && !isspace(*p))
++ return -EINVAL;
++ while (left && isspace(*p))
++ left--, p++;
++ *(unsigned int *)table->data = value;
++ } else {
++ if (!access_ok(VERIFY_WRITE, buffer, left))
++ return -EFAULT;
++ len = sprintf(tmpbuf, "%d", *(unsigned int *)table->data);
++ if (len > left)
++ len = left;
++ if (__copy_to_user(buffer, tmpbuf, len))
++ return -EFAULT;
++ if ((left -= len) > 0) {
++ if (put_user('\n', (char *)buffer + len))
++ return -EFAULT;
++ left--;
++ }
++ }
++
++done:
++ *lenp -= left;
++ *ppos += *lenp;
++ return 0;
++}
++
++static int zero;
++
++#define CTL_ENTRY(ctl, name) \
++ { \
++ .ctl_name = ctl, \
++ .procname = #name, \
++ .data = &vx_ ## name, \
++ .maxlen = sizeof(int), \
++ .mode = 0644, \
++ .proc_handler = &proc_dodebug, \
++ .strategy = &sysctl_intvec, \
++ .extra1 = &zero, \
++ }
++
++static ctl_table vserver_debug_table[] = {
++ CTL_ENTRY(CTL_DEBUG_SWITCH, debug_switch),
++ CTL_ENTRY(CTL_DEBUG_XID, debug_xid),
++ CTL_ENTRY(CTL_DEBUG_NID, debug_nid),
++ CTL_ENTRY(CTL_DEBUG_TAG, debug_tag),
++ CTL_ENTRY(CTL_DEBUG_NET, debug_net),
++ CTL_ENTRY(CTL_DEBUG_LIMIT, debug_limit),
++ CTL_ENTRY(CTL_DEBUG_CRES, debug_cres),
++ CTL_ENTRY(CTL_DEBUG_DLIM, debug_dlim),
++ CTL_ENTRY(CTL_DEBUG_QUOTA, debug_quota),
++ CTL_ENTRY(CTL_DEBUG_CVIRT, debug_cvirt),
++ CTL_ENTRY(CTL_DEBUG_SPACE, debug_space),
++ CTL_ENTRY(CTL_DEBUG_MISC, debug_misc),
++ { .ctl_name = 0 }
++};
++
++static ctl_table vserver_root_table[] = {
++ {
++ .ctl_name = CTL_VSERVER,
++ .procname = "vserver",
++ .mode = 0555,
++ .child = vserver_debug_table
++ },
++ { .ctl_name = 0 }
++};
++
++
++static match_table_t tokens = {
++ { CTL_DEBUG_SWITCH, "switch=%x" },
++ { CTL_DEBUG_XID, "xid=%x" },
++ { CTL_DEBUG_NID, "nid=%x" },
++ { CTL_DEBUG_TAG, "tag=%x" },
++ { CTL_DEBUG_NET, "net=%x" },
++ { CTL_DEBUG_LIMIT, "limit=%x" },
++ { CTL_DEBUG_CRES, "cres=%x" },
++ { CTL_DEBUG_DLIM, "dlim=%x" },
++ { CTL_DEBUG_QUOTA, "quota=%x" },
++ { CTL_DEBUG_CVIRT, "cvirt=%x" },
++ { CTL_DEBUG_SPACE, "space=%x" },
++ { CTL_DEBUG_MISC, "misc=%x" },
++ { CTL_DEBUG_ERROR, NULL }
++};
++
++#define HANDLE_CASE(id, name, val) \
++ case CTL_DEBUG_ ## id: \
++ vx_debug_ ## name = val; \
++ printk("vs_debug_" #name "=0x%x\n", val); \
++ break
++
++
++static int __init vs_debug_setup(char *str)
++{
++ char *p;
++ int token;
++
++ printk("vs_debug_setup(%s)\n", str);
++ while ((p = strsep(&str, ",")) != NULL) {
++ substring_t args[MAX_OPT_ARGS];
++ unsigned int value;
++
++ if (!*p)
++ continue;
++
++ token = match_token(p, tokens, args);
++ value = (token > 0) ? simple_strtoul(args[0].from, NULL, 0) : 0;
++
++ switch (token) {
++ HANDLE_CASE(SWITCH, switch, value);
++ HANDLE_CASE(XID, xid, value);
++ HANDLE_CASE(NID, nid, value);
++ HANDLE_CASE(TAG, tag, value);
++ HANDLE_CASE(NET, net, value);
++ HANDLE_CASE(LIMIT, limit, value);
++ HANDLE_CASE(CRES, cres, value);
++ HANDLE_CASE(DLIM, dlim, value);
++ HANDLE_CASE(QUOTA, quota, value);
++ HANDLE_CASE(CVIRT, cvirt, value);
++ HANDLE_CASE(SPACE, space, value);
++ HANDLE_CASE(MISC, misc, value);
++ default:
++ return -EINVAL;
++ break;
++ }
++ }
++ return 1;
++}
++
++__setup("vsdebug=", vs_debug_setup);
++
++
++
++EXPORT_SYMBOL_GPL(vx_debug_switch);
++EXPORT_SYMBOL_GPL(vx_debug_xid);
++EXPORT_SYMBOL_GPL(vx_debug_nid);
++EXPORT_SYMBOL_GPL(vx_debug_net);
++EXPORT_SYMBOL_GPL(vx_debug_limit);
++EXPORT_SYMBOL_GPL(vx_debug_cres);
++EXPORT_SYMBOL_GPL(vx_debug_dlim);
++EXPORT_SYMBOL_GPL(vx_debug_quota);
++EXPORT_SYMBOL_GPL(vx_debug_cvirt);
++EXPORT_SYMBOL_GPL(vx_debug_space);
++EXPORT_SYMBOL_GPL(vx_debug_misc);
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/tag.c linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/tag.c
+--- linux-2.6.32.1/kernel/vserver/tag.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/tag.c 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,63 @@
++/*
++ * linux/kernel/vserver/tag.c
++ *
++ * Virtual Server: Shallow Tag Space
++ *
++ * Copyright (C) 2007 Herbert Pötzl
++ *
++ * V0.01 basic implementation
++ *
++ */
++
++#include <linux/sched.h>
++#include <linux/vserver/debug.h>
++#include <linux/vs_pid.h>
++#include <linux/vs_tag.h>
++
++#include <linux/vserver/tag_cmd.h>
++
++
++int dx_migrate_task(struct task_struct *p, tag_t tag)
++{
++ if (!p)
++ BUG();
++
++ vxdprintk(VXD_CBIT(tag, 5),
++ "dx_migrate_task(%p[#%d],#%d)", p, p->tag, tag);
++
++ task_lock(p);
++ p->tag = tag;
++ task_unlock(p);
++
++ vxdprintk(VXD_CBIT(tag, 5),
++ "moved task %p into [#%d]", p, tag);
++ return 0;
++}
++
++/* vserver syscall commands below here */
++
++/* taks xid and vx_info functions */
++
++
++int vc_task_tag(uint32_t id)
++{
++ tag_t tag;
++
++ if (id) {
++ struct task_struct *tsk;
++ read_lock(&tasklist_lock);
++ tsk = find_task_by_real_pid(id);
++ tag = (tsk) ? tsk->tag : -ESRCH;
++ read_unlock(&tasklist_lock);
++ } else
++ tag = dx_current_tag();
++ return tag;
++}
++
++
++int vc_tag_migrate(uint32_t tag)
++{
++ return dx_migrate_task(current, tag & 0xFFFF);
++}
++
++
+diff -NurpP --minimal linux-2.6.32.1/kernel/vserver/vci_config.h linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/vci_config.h
+--- linux-2.6.32.1/kernel/vserver/vci_config.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/kernel/vserver/vci_config.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,81 @@
++
++/* interface version */
++
++#define VCI_VERSION 0x00020305
++
++
++enum {
++ VCI_KCBIT_NO_DYNAMIC = 0,
++
++ VCI_KCBIT_PROC_SECURE = 4,
++ VCI_KCBIT_HARDCPU = 5,
++ VCI_KCBIT_IDLELIMIT = 6,
++ VCI_KCBIT_IDLETIME = 7,
++
++ VCI_KCBIT_COWBL = 8,
++ VCI_KCBIT_FULLCOWBL = 9,
++ VCI_KCBIT_SPACES = 10,
++ VCI_KCBIT_NETV2 = 11,
++
++ VCI_KCBIT_DEBUG = 16,
++ VCI_KCBIT_HISTORY = 20,
++ VCI_KCBIT_TAGGED = 24,
++ VCI_KCBIT_PPTAG = 28,
++
++ VCI_KCBIT_MORE = 31,
++};
++
++
++static inline uint32_t vci_kernel_config(void)
++{
++ return
++ (1 << VCI_KCBIT_NO_DYNAMIC) |
++
++ /* configured features */
++#ifdef CONFIG_VSERVER_PROC_SECURE
++ (1 << VCI_KCBIT_PROC_SECURE) |
++#endif
++#ifdef CONFIG_VSERVER_HARDCPU
++ (1 << VCI_KCBIT_HARDCPU) |
++#endif
++#ifdef CONFIG_VSERVER_IDLELIMIT
++ (1 << VCI_KCBIT_IDLELIMIT) |
++#endif
++#ifdef CONFIG_VSERVER_IDLETIME
++ (1 << VCI_KCBIT_IDLETIME) |
++#endif
++#ifdef CONFIG_VSERVER_COWBL
++ (1 << VCI_KCBIT_COWBL) |
++ (1 << VCI_KCBIT_FULLCOWBL) |
++#endif
++ (1 << VCI_KCBIT_SPACES) |
++ (1 << VCI_KCBIT_NETV2) |
++
++ /* debug options */
++#ifdef CONFIG_VSERVER_DEBUG
++ (1 << VCI_KCBIT_DEBUG) |
++#endif
++#ifdef CONFIG_VSERVER_HISTORY
++ (1 << VCI_KCBIT_HISTORY) |
++#endif
++
++ /* inode context tagging */
++#if defined(CONFIG_TAGGING_NONE)
++ (0 << VCI_KCBIT_TAGGED) |
++#elif defined(CONFIG_TAGGING_UID16)
++ (1 << VCI_KCBIT_TAGGED) |
++#elif defined(CONFIG_TAGGING_GID16)
++ (2 << VCI_KCBIT_TAGGED) |
++#elif defined(CONFIG_TAGGING_ID24)
++ (3 << VCI_KCBIT_TAGGED) |
++#elif defined(CONFIG_TAGGING_INTERN)
++ (4 << VCI_KCBIT_TAGGED) |
++#elif defined(CONFIG_TAGGING_RUNTIME)
++ (5 << VCI_KCBIT_TAGGED) |
++#else
++ (7 << VCI_KCBIT_TAGGED) |
++#endif
++ (1 << VCI_KCBIT_PPTAG) |
++ 0;
++}
++
+diff -NurpP --minimal linux-2.6.32.1/mm/allocpercpu.c linux-2.6.32.1-vs2.3.0.36.27/mm/allocpercpu.c
+--- linux-2.6.32.1/mm/allocpercpu.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/allocpercpu.c 2009-12-03 20:04:56.000000000 +0100
+@@ -160,12 +160,14 @@ EXPORT_SYMBOL(__per_cpu_offset);
+
+ void __init setup_per_cpu_areas(void)
+ {
+- unsigned long size, i;
++ unsigned long size, vspc, i;
+ char *ptr;
+ unsigned long nr_possible_cpus = num_possible_cpus();
+
++ vspc = PERCPU_PERCTX * CONFIG_VSERVER_CONTEXTS;
++
+ /* Copy section for each CPU (we discard the original) */
+- size = ALIGN(PERCPU_ENOUGH_ROOM, PAGE_SIZE);
++ size = ALIGN(PERCPU_ENOUGH_ROOM + vspc, PAGE_SIZE);
+ ptr = alloc_bootmem_pages(size * nr_possible_cpus);
+
+ for_each_possible_cpu(i) {
+diff -NurpP --minimal linux-2.6.32.1/mm/filemap_xip.c linux-2.6.32.1-vs2.3.0.36.27/mm/filemap_xip.c
+--- linux-2.6.32.1/mm/filemap_xip.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/filemap_xip.c 2009-12-03 20:04:56.000000000 +0100
+@@ -17,6 +17,7 @@
+ #include <linux/sched.h>
+ #include <linux/seqlock.h>
+ #include <linux/mutex.h>
++#include <linux/vs_memory.h>
+ #include <asm/tlbflush.h>
+ #include <asm/io.h>
+
+diff -NurpP --minimal linux-2.6.32.1/mm/fremap.c linux-2.6.32.1-vs2.3.0.36.27/mm/fremap.c
+--- linux-2.6.32.1/mm/fremap.c 2009-03-24 14:22:45.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/fremap.c 2009-12-03 20:04:56.000000000 +0100
+@@ -16,6 +16,7 @@
+ #include <linux/module.h>
+ #include <linux/syscalls.h>
+ #include <linux/mmu_notifier.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/mmu_context.h>
+ #include <asm/cacheflush.h>
+diff -NurpP --minimal linux-2.6.32.1/mm/hugetlb.c linux-2.6.32.1-vs2.3.0.36.27/mm/hugetlb.c
+--- linux-2.6.32.1/mm/hugetlb.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/hugetlb.c 2009-12-03 20:04:56.000000000 +0100
+@@ -24,6 +24,7 @@
+ #include <asm/io.h>
+
+ #include <linux/hugetlb.h>
++#include <linux/vs_memory.h>
+ #include "internal.h"
+
+ const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
+diff -NurpP --minimal linux-2.6.32.1/mm/memory.c linux-2.6.32.1-vs2.3.0.36.27/mm/memory.c
+--- linux-2.6.32.1/mm/memory.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/memory.c 2009-12-03 20:04:56.000000000 +0100
+@@ -56,6 +56,7 @@
+ #include <linux/kallsyms.h>
+ #include <linux/swapops.h>
+ #include <linux/elf.h>
++// #include <linux/vs_memory.h>
+
+ #include <asm/io.h>
+ #include <asm/pgalloc.h>
+@@ -647,6 +648,9 @@ static int copy_pte_range(struct mm_stru
+ int progress = 0;
+ int rss[2];
+
++ if (!vx_rss_avail(dst_mm, ((end - addr)/PAGE_SIZE + 1)))
++ return -ENOMEM;
++
+ again:
+ rss[1] = rss[0] = 0;
+ dst_pte = pte_alloc_map_lock(dst_mm, dst_pmd, addr, &dst_ptl);
+@@ -2645,6 +2649,8 @@ static int do_anonymous_page(struct mm_s
+ /* Allocate our own private page. */
+ pte_unmap(page_table);
+
++ if (!vx_rss_avail(mm, 1))
++ goto oom;
+ if (unlikely(anon_vma_prepare(vma)))
+ goto oom;
+ page = alloc_zeroed_user_highpage_movable(vma, address);
+@@ -2936,6 +2942,7 @@ static inline int handle_pte_fault(struc
+ {
+ pte_t entry;
+ spinlock_t *ptl;
++ int ret = 0, type = VXPT_UNKNOWN;
+
+ entry = *pte;
+ if (!pte_present(entry)) {
+@@ -2960,9 +2967,12 @@ static inline int handle_pte_fault(struc
+ if (unlikely(!pte_same(*pte, entry)))
+ goto unlock;
+ if (flags & FAULT_FLAG_WRITE) {
+- if (!pte_write(entry))
+- return do_wp_page(mm, vma, address,
++ if (!pte_write(entry)) {
++ ret = do_wp_page(mm, vma, address,
+ pte, pmd, ptl, entry);
++ type = VXPT_WRITE;
++ goto out;
++ }
+ entry = pte_mkdirty(entry);
+ }
+ entry = pte_mkyoung(entry);
+@@ -2980,7 +2990,10 @@ static inline int handle_pte_fault(struc
+ }
+ unlock:
+ pte_unmap_unlock(pte, ptl);
+- return 0;
++ ret = 0;
++out:
++ vx_page_fault(mm, vma, type, ret);
++ return ret;
+ }
+
+ /*
+diff -NurpP --minimal linux-2.6.32.1/mm/mlock.c linux-2.6.32.1-vs2.3.0.36.27/mm/mlock.c
+--- linux-2.6.32.1/mm/mlock.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/mlock.c 2009-12-03 20:04:56.000000000 +0100
+@@ -18,6 +18,7 @@
+ #include <linux/rmap.h>
+ #include <linux/mmzone.h>
+ #include <linux/hugetlb.h>
++#include <linux/vs_memory.h>
+
+ #include "internal.h"
+
+@@ -401,7 +402,7 @@ success:
+ nr_pages = (end - start) >> PAGE_SHIFT;
+ if (!lock)
+ nr_pages = -nr_pages;
+- mm->locked_vm += nr_pages;
++ vx_vmlocked_add(mm, nr_pages);
+
+ /*
+ * vm_flags is protected by the mmap_sem held in write mode.
+@@ -474,7 +475,7 @@ static int do_mlock(unsigned long start,
+
+ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
+ {
+- unsigned long locked;
++ unsigned long locked, grow;
+ unsigned long lock_limit;
+ int error = -ENOMEM;
+
+@@ -487,8 +488,10 @@ SYSCALL_DEFINE2(mlock, unsigned long, st
+ len = PAGE_ALIGN(len + (start & ~PAGE_MASK));
+ start &= PAGE_MASK;
+
+- locked = len >> PAGE_SHIFT;
+- locked += current->mm->locked_vm;
++ grow = len >> PAGE_SHIFT;
++ if (!vx_vmlocked_avail(current->mm, grow))
++ goto out;
++ locked = current->mm->locked_vm + grow;
+
+ lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur;
+ lock_limit >>= PAGE_SHIFT;
+@@ -496,6 +499,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, st
+ /* check against resource limits */
+ if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
+ error = do_mlock(start, len, 1);
++out:
+ up_write(¤t->mm->mmap_sem);
+ return error;
+ }
+@@ -557,6 +561,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
+ lock_limit >>= PAGE_SHIFT;
+
+ ret = -ENOMEM;
++ if (!vx_vmlocked_avail(current->mm, current->mm->total_vm))
++ goto out;
+ if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
+ capable(CAP_IPC_LOCK))
+ ret = do_mlockall(flags);
+@@ -631,8 +637,10 @@ int account_locked_memory(struct mm_stru
+ if (lim < vm)
+ goto out;
+
+- mm->total_vm += pgsz;
+- mm->locked_vm += pgsz;
++ // mm->total_vm += pgsz;
++ vx_vmpages_add(mm, pgsz);
++ // mm->locked_vm += pgsz;
++ vx_vmlocked_add(mm, pgsz);
+
+ error = 0;
+ out:
+@@ -646,8 +654,10 @@ void refund_locked_memory(struct mm_stru
+
+ down_write(&mm->mmap_sem);
+
+- mm->total_vm -= pgsz;
+- mm->locked_vm -= pgsz;
++ // mm->total_vm -= pgsz;
++ vx_vmpages_sub(mm, pgsz);
++ // mm->locked_vm -= pgsz;
++ vx_vmlocked_sub(mm, pgsz);
+
+ up_write(&mm->mmap_sem);
+ }
+diff -NurpP --minimal linux-2.6.32.1/mm/mmap.c linux-2.6.32.1-vs2.3.0.36.27/mm/mmap.c
+--- linux-2.6.32.1/mm/mmap.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/mmap.c 2009-12-03 20:04:56.000000000 +0100
+@@ -1236,7 +1236,8 @@ munmap_back:
+ out:
+ perf_event_mmap(vma);
+
+- mm->total_vm += len >> PAGE_SHIFT;
++ // mm->total_vm += len >> PAGE_SHIFT;
++ vx_vmpages_add(mm, len >> PAGE_SHIFT);
+ vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
+ if (vm_flags & VM_LOCKED) {
+ /*
+@@ -1245,7 +1246,8 @@ out:
+ long nr_pages = mlock_vma_pages_range(vma, addr, addr + len);
+ if (nr_pages < 0)
+ return nr_pages; /* vma gone! */
+- mm->locked_vm += (len >> PAGE_SHIFT) - nr_pages;
++ // mm->locked_vm += (len >> PAGE_SHIFT) - nr_pages;
++ vx_vmlocked_add(mm, (len >> PAGE_SHIFT) - nr_pages);
+ } else if ((flags & MAP_POPULATE) && !(flags & MAP_NONBLOCK))
+ make_pages_present(addr, addr + len);
+ return addr;
+@@ -1592,9 +1594,9 @@ static int acct_stack_growth(struct vm_a
+ return -ENOMEM;
+
+ /* Ok, everything looks good - let it rip */
+- mm->total_vm += grow;
++ vx_vmpages_add(mm, grow);
+ if (vma->vm_flags & VM_LOCKED)
+- mm->locked_vm += grow;
++ vx_vmlocked_add(mm, grow);
+ vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow);
+ return 0;
+ }
+@@ -1769,7 +1771,8 @@ static void remove_vma_list(struct mm_st
+ do {
+ long nrpages = vma_pages(vma);
+
+- mm->total_vm -= nrpages;
++ // mm->total_vm -= nrpages;
++ vx_vmpages_sub(mm, nrpages);
+ vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
+ vma = remove_vma(vma);
+ } while (vma);
+@@ -1941,7 +1944,8 @@ int do_munmap(struct mm_struct *mm, unsi
+ struct vm_area_struct *tmp = vma;
+ while (tmp && tmp->vm_start < end) {
+ if (tmp->vm_flags & VM_LOCKED) {
+- mm->locked_vm -= vma_pages(tmp);
++ // mm->locked_vm -= vma_pages(tmp);
++ vx_vmlocked_sub(mm, vma_pages(tmp));
+ munlock_vma_pages_all(tmp);
+ }
+ tmp = tmp->vm_next;
+@@ -2030,6 +2034,8 @@ unsigned long do_brk(unsigned long addr,
+ lock_limit >>= PAGE_SHIFT;
+ if (locked > lock_limit && !capable(CAP_IPC_LOCK))
+ return -EAGAIN;
++ if (!vx_vmlocked_avail(mm, len >> PAGE_SHIFT))
++ return -ENOMEM;
+ }
+
+ /*
+@@ -2056,7 +2062,8 @@ unsigned long do_brk(unsigned long addr,
+ if (mm->map_count > sysctl_max_map_count)
+ return -ENOMEM;
+
+- if (security_vm_enough_memory(len >> PAGE_SHIFT))
++ if (security_vm_enough_memory(len >> PAGE_SHIFT) ||
++ !vx_vmpages_avail(mm, len >> PAGE_SHIFT))
+ return -ENOMEM;
+
+ /* Can we just expand an old private anonymous mapping? */
+@@ -2082,10 +2089,13 @@ unsigned long do_brk(unsigned long addr,
+ vma->vm_page_prot = vm_get_page_prot(flags);
+ vma_link(mm, vma, prev, rb_link, rb_parent);
+ out:
+- mm->total_vm += len >> PAGE_SHIFT;
++ // mm->total_vm += len >> PAGE_SHIFT;
++ vx_vmpages_add(mm, len >> PAGE_SHIFT);
++
+ if (flags & VM_LOCKED) {
+ if (!mlock_vma_pages_range(vma, addr, addr + len))
+- mm->locked_vm += (len >> PAGE_SHIFT);
++ // mm->locked_vm += (len >> PAGE_SHIFT);
++ vx_vmlocked_add(mm, len >> PAGE_SHIFT);
+ }
+ return addr;
+ }
+@@ -2129,6 +2139,11 @@ void exit_mmap(struct mm_struct *mm)
+ free_pgtables(tlb, vma, FIRST_USER_ADDRESS, 0);
+ tlb_finish_mmu(tlb, 0, end);
+
++ set_mm_counter(mm, file_rss, 0);
++ set_mm_counter(mm, anon_rss, 0);
++ vx_vmpages_sub(mm, mm->total_vm);
++ vx_vmlocked_sub(mm, mm->locked_vm);
++
+ /*
+ * Walk the list again, actually closing and freeing it,
+ * with preemption enabled, without holding any MM locks.
+@@ -2168,7 +2183,8 @@ int insert_vm_struct(struct mm_struct *
+ if (__vma && __vma->vm_start < vma->vm_end)
+ return -ENOMEM;
+ if ((vma->vm_flags & VM_ACCOUNT) &&
+- security_vm_enough_memory_mm(mm, vma_pages(vma)))
++ (security_vm_enough_memory_mm(mm, vma_pages(vma)) ||
++ !vx_vmpages_avail(mm, vma_pages(vma))))
+ return -ENOMEM;
+ vma_link(mm, vma, prev, rb_link, rb_parent);
+ return 0;
+@@ -2244,6 +2260,8 @@ int may_expand_vm(struct mm_struct *mm,
+
+ if (cur + npages > lim)
+ return 0;
++ if (!vx_vmpages_avail(mm, npages))
++ return 0;
+ return 1;
+ }
+
+@@ -2321,7 +2339,7 @@ int install_special_mapping(struct mm_st
+ return -ENOMEM;
+ }
+
+- mm->total_vm += len >> PAGE_SHIFT;
++ vx_vmpages_add(mm, len >> PAGE_SHIFT);
+
+ perf_event_mmap(vma);
+
+diff -NurpP --minimal linux-2.6.32.1/mm/mremap.c linux-2.6.32.1-vs2.3.0.36.27/mm/mremap.c
+--- linux-2.6.32.1/mm/mremap.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/mremap.c 2009-12-03 20:04:56.000000000 +0100
+@@ -20,6 +20,7 @@
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
+ #include <linux/mmu_notifier.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/cacheflush.h>
+@@ -234,7 +235,7 @@ static unsigned long move_vma(struct vm_
+ * If this were a serious issue, we'd add a flag to do_munmap().
+ */
+ hiwater_vm = mm->hiwater_vm;
+- mm->total_vm += new_len >> PAGE_SHIFT;
++ vx_vmpages_add(mm, new_len >> PAGE_SHIFT);
+ vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT);
+
+ if (do_munmap(mm, old_addr, old_len) < 0) {
+@@ -252,7 +253,7 @@ static unsigned long move_vma(struct vm_
+ }
+
+ if (vm_flags & VM_LOCKED) {
+- mm->locked_vm += new_len >> PAGE_SHIFT;
++ vx_vmlocked_add(mm, new_len >> PAGE_SHIFT);
+ if (new_len > old_len)
+ mlock_vma_pages_range(new_vma, new_addr + old_len,
+ new_addr + new_len);
+@@ -363,6 +364,9 @@ unsigned long do_mremap(unsigned long ad
+ ret = -EAGAIN;
+ if (locked > lock_limit && !capable(CAP_IPC_LOCK))
+ goto out;
++ if (!vx_vmlocked_avail(current->mm,
++ (new_len - old_len) >> PAGE_SHIFT))
++ goto out;
+ }
+ if (!may_expand_vm(mm, (new_len - old_len) >> PAGE_SHIFT)) {
+ ret = -ENOMEM;
+@@ -391,10 +395,12 @@ unsigned long do_mremap(unsigned long ad
+ vma_adjust(vma, vma->vm_start,
+ addr + new_len, vma->vm_pgoff, NULL);
+
+- mm->total_vm += pages;
++ // mm->total_vm += pages;
++ vx_vmpages_add(mm, pages);
+ vm_stat_account(mm, vma->vm_flags, vma->vm_file, pages);
+ if (vma->vm_flags & VM_LOCKED) {
+- mm->locked_vm += pages;
++ // mm->locked_vm += pages;
++ vx_vmlocked_add(mm, pages);
+ mlock_vma_pages_range(vma, addr + old_len,
+ addr + new_len);
+ }
+diff -NurpP --minimal linux-2.6.32.1/mm/nommu.c linux-2.6.32.1-vs2.3.0.36.27/mm/nommu.c
+--- linux-2.6.32.1/mm/nommu.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/nommu.c 2009-12-03 20:04:56.000000000 +0100
+@@ -1346,7 +1346,7 @@ unsigned long do_mmap_pgoff(struct file
+ /* okay... we have a mapping; now we have to register it */
+ result = vma->vm_start;
+
+- current->mm->total_vm += len >> PAGE_SHIFT;
++ vx_vmpages_add(current->mm, len >> PAGE_SHIFT);
+
+ share:
+ add_vma_to_mm(current->mm, vma);
+@@ -1606,7 +1606,7 @@ void exit_mmap(struct mm_struct *mm)
+
+ kenter("");
+
+- mm->total_vm = 0;
++ vx_vmpages_sub(mm, mm->total_vm);
+
+ while ((vma = mm->mmap)) {
+ mm->mmap = vma->vm_next;
+diff -NurpP --minimal linux-2.6.32.1/mm/oom_kill.c linux-2.6.32.1-vs2.3.0.36.27/mm/oom_kill.c
+--- linux-2.6.32.1/mm/oom_kill.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/oom_kill.c 2009-12-03 22:26:55.000000000 +0100
+@@ -27,6 +27,9 @@
+ #include <linux/notifier.h>
+ #include <linux/memcontrol.h>
+ #include <linux/security.h>
++#include <linux/reboot.h>
++#include <linux/vs_memory.h>
++#include <linux/vs_context.h>
+
+ int sysctl_panic_on_oom;
+ int sysctl_oom_kill_allocating_task;
+@@ -186,9 +189,21 @@ unsigned long badness(struct task_struct
+ points >>= -(oom_adj);
+ }
+
++ /*
++ * add points for context badness and
++ * reduce badness for processes belonging to
++ * a different context
++ */
++
++ points += vx_badness(p, mm);
++
++ if ((vx_current_xid() > 1) &&
++ vx_current_xid() != vx_task_xid(p))
++ points /= 16;
++
+ #ifdef DEBUG
+- printk(KERN_DEBUG "OOMkill: task %d (%s) got %lu points\n",
+- p->pid, p->comm, points);
++ printk(KERN_DEBUG "OOMkill: task %d:#%u (%s) got %d points\n",
++ task_pid_nr(p), p->xid, p->comm, points);
+ #endif
+ return points;
+ }
+@@ -230,6 +245,7 @@ static struct task_struct *select_bad_pr
+ struct task_struct *p;
+ struct task_struct *chosen = NULL;
+ struct timespec uptime;
++ unsigned xid = vx_current_xid();
+ *ppoints = 0;
+
+ do_posix_clock_monotonic_gettime(&uptime);
+@@ -242,11 +258,14 @@ static struct task_struct *select_bad_pr
+ */
+ if (!p->mm)
+ continue;
+- /* skip the init task */
+- if (is_global_init(p))
++ /* skip the init task, global and per guest */
++ if (task_is_init(p))
+ continue;
+ if (mem && !task_in_mem_cgroup(p, mem))
+ continue;
++ /* skip other guest and host processes if oom in guest */
++ if (xid && vx_task_xid(p) != xid)
++ continue;
+
+ /*
+ * This task already has access to memory reserves and is
+@@ -357,8 +376,8 @@ static void __oom_kill_task(struct task_
+ }
+
+ if (verbose)
+- printk(KERN_ERR "Killed process %d (%s)\n",
+- task_pid_nr(p), p->comm);
++ printk(KERN_ERR "Killed process %s(%d:#%u)\n",
++ p->comm, task_pid_nr(p), p->xid);
+
+ /*
+ * We give our sacrificial lamb high priority and access to
+@@ -419,8 +438,8 @@ static int oom_kill_process(struct task_
+ return 0;
+ }
+
+- printk(KERN_ERR "%s: kill process %d (%s) score %li or a child\n",
+- message, task_pid_nr(p), p->comm, points);
++ printk(KERN_ERR "%s: kill process %s(%d:#%u) score %li or a child\n",
++ message, p->comm, task_pid_nr(p), p->xid, points);
+
+ /* Try to kill a child first */
+ list_for_each_entry(c, &p->children, sibling) {
+@@ -519,6 +538,8 @@ void clear_zonelist_oom(struct zonelist
+ spin_unlock(&zone_scan_lock);
+ }
+
++long vs_oom_action(unsigned int);
++
+ /*
+ * Must be called with tasklist_lock held for read.
+ */
+@@ -544,7 +565,11 @@ retry:
+ /* Found nothing?!?! Either we hang forever, or we panic. */
+ if (!p) {
+ read_unlock(&tasklist_lock);
+- panic("Out of memory and no killable processes...\n");
++ /* avoid panic for guest OOM */
++ if (current->xid)
++ vs_oom_action(LINUX_REBOOT_CMD_OOM);
++ else
++ panic("Out of memory and no killable processes...\n");
+ }
+
+ if (oom_kill_process(p, gfp_mask, order, points, NULL,
+diff -NurpP --minimal linux-2.6.32.1/mm/page_alloc.c linux-2.6.32.1-vs2.3.0.36.27/mm/page_alloc.c
+--- linux-2.6.32.1/mm/page_alloc.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/page_alloc.c 2009-12-03 20:04:56.000000000 +0100
+@@ -48,6 +48,8 @@
+ #include <linux/page_cgroup.h>
+ #include <linux/debugobjects.h>
+ #include <linux/kmemleak.h>
++#include <linux/vs_base.h>
++#include <linux/vs_limit.h>
+ #include <trace/events/kmem.h>
+
+ #include <asm/tlbflush.h>
+@@ -2130,6 +2132,9 @@ void si_meminfo(struct sysinfo *val)
+ val->totalhigh = totalhigh_pages;
+ val->freehigh = nr_free_highpages();
+ val->mem_unit = PAGE_SIZE;
++
++ if (vx_flags(VXF_VIRT_MEM, 0))
++ vx_vsi_meminfo(val);
+ }
+
+ EXPORT_SYMBOL(si_meminfo);
+@@ -2150,6 +2155,9 @@ void si_meminfo_node(struct sysinfo *val
+ val->freehigh = 0;
+ #endif
+ val->mem_unit = PAGE_SIZE;
++
++ if (vx_flags(VXF_VIRT_MEM, 0))
++ vx_vsi_meminfo(val);
+ }
+ #endif
+
+diff -NurpP --minimal linux-2.6.32.1/mm/rmap.c linux-2.6.32.1-vs2.3.0.36.27/mm/rmap.c
+--- linux-2.6.32.1/mm/rmap.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/rmap.c 2009-12-03 20:04:56.000000000 +0100
+@@ -55,6 +55,7 @@
+ #include <linux/memcontrol.h>
+ #include <linux/mmu_notifier.h>
+ #include <linux/migrate.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/tlbflush.h>
+
+diff -NurpP --minimal linux-2.6.32.1/mm/shmem.c linux-2.6.32.1-vs2.3.0.36.27/mm/shmem.c
+--- linux-2.6.32.1/mm/shmem.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/shmem.c 2009-12-03 20:04:56.000000000 +0100
+@@ -1781,7 +1781,7 @@ static int shmem_statfs(struct dentry *d
+ {
+ struct shmem_sb_info *sbinfo = SHMEM_SB(dentry->d_sb);
+
+- buf->f_type = TMPFS_MAGIC;
++ buf->f_type = TMPFS_SUPER_MAGIC;
+ buf->f_bsize = PAGE_CACHE_SIZE;
+ buf->f_namelen = NAME_MAX;
+ spin_lock(&sbinfo->stat_lock);
+@@ -2346,7 +2346,7 @@ int shmem_fill_super(struct super_block
+ sb->s_maxbytes = SHMEM_MAX_BYTES;
+ sb->s_blocksize = PAGE_CACHE_SIZE;
+ sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+- sb->s_magic = TMPFS_MAGIC;
++ sb->s_magic = TMPFS_SUPER_MAGIC;
+ sb->s_op = &shmem_ops;
+ sb->s_time_gran = 1;
+ #ifdef CONFIG_TMPFS_POSIX_ACL
+diff -NurpP --minimal linux-2.6.32.1/mm/slab.c linux-2.6.32.1-vs2.3.0.36.27/mm/slab.c
+--- linux-2.6.32.1/mm/slab.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/slab.c 2009-12-03 20:04:56.000000000 +0100
+@@ -431,6 +431,8 @@ static void kmem_list3_init(struct kmem_
+ #define STATS_INC_FREEMISS(x) do { } while (0)
+ #endif
+
++#include "slab_vs.h"
++
+ #if DEBUG
+
+ /*
+@@ -3253,6 +3255,7 @@ retry:
+
+ obj = slab_get_obj(cachep, slabp, nodeid);
+ check_slabp(cachep, slabp);
++ vx_slab_alloc(cachep, flags);
+ l3->free_objects--;
+ /* move slabp to correct slabp list: */
+ list_del(&slabp->list);
+@@ -3329,6 +3332,7 @@ __cache_alloc_node(struct kmem_cache *ca
+ /* ___cache_alloc_node can fall back to other nodes */
+ ptr = ____cache_alloc_node(cachep, flags, nodeid);
+ out:
++ vx_slab_alloc(cachep, flags);
+ local_irq_restore(save_flags);
+ ptr = cache_alloc_debugcheck_after(cachep, flags, ptr, caller);
+ kmemleak_alloc_recursive(ptr, obj_size(cachep), 1, cachep->flags,
+@@ -3515,6 +3519,7 @@ static inline void __cache_free(struct k
+ check_irq_off();
+ kmemleak_free_recursive(objp, cachep->flags);
+ objp = cache_free_debugcheck(cachep, objp, __builtin_return_address(0));
++ vx_slab_free(cachep);
+
+ kmemcheck_slab_free(cachep, objp, obj_size(cachep));
+
+diff -NurpP --minimal linux-2.6.32.1/mm/slab_vs.h linux-2.6.32.1-vs2.3.0.36.27/mm/slab_vs.h
+--- linux-2.6.32.1/mm/slab_vs.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/slab_vs.h 2009-12-03 20:04:56.000000000 +0100
+@@ -0,0 +1,29 @@
++
++#include <linux/vserver/context.h>
++
++#include <linux/vs_context.h>
++
++static inline
++void vx_slab_alloc(struct kmem_cache *cachep, gfp_t flags)
++{
++ int what = gfp_zone(cachep->gfpflags);
++ struct vx_info *vxi = current_vx_info();
++
++ if (!vxi)
++ return;
++
++ atomic_add(cachep->buffer_size, &vxi->cacct.slab[what]);
++}
++
++static inline
++void vx_slab_free(struct kmem_cache *cachep)
++{
++ int what = gfp_zone(cachep->gfpflags);
++ struct vx_info *vxi = current_vx_info();
++
++ if (!vxi)
++ return;
++
++ atomic_sub(cachep->buffer_size, &vxi->cacct.slab[what]);
++}
++
+diff -NurpP --minimal linux-2.6.32.1/mm/swapfile.c linux-2.6.32.1-vs2.3.0.36.27/mm/swapfile.c
+--- linux-2.6.32.1/mm/swapfile.c 2009-12-03 20:02:58.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/mm/swapfile.c 2009-12-03 20:04:56.000000000 +0100
+@@ -34,6 +34,8 @@
+ #include <asm/tlbflush.h>
+ #include <linux/swapops.h>
+ #include <linux/page_cgroup.h>
++#include <linux/vs_base.h>
++#include <linux/vs_memory.h>
+
+ static DEFINE_SPINLOCK(swap_lock);
+ static unsigned int nr_swapfiles;
+@@ -1680,6 +1682,8 @@ static void *swap_next(struct seq_file *
+ if (v == SEQ_START_TOKEN)
+ ptr = swap_info;
+ else {
++ if (vx_flags(VXF_VIRT_MEM, 0))
++ return NULL;
+ ptr = v;
+ ptr++;
+ }
+@@ -1707,6 +1711,16 @@ static int swap_show(struct seq_file *sw
+
+ if (ptr == SEQ_START_TOKEN) {
+ seq_puts(swap,"Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n");
++ if (vx_flags(VXF_VIRT_MEM, 0)) {
++ struct sysinfo si;
++
++ vx_vsi_swapinfo(&si);
++ if (si.totalswap < (1 << 10))
++ return 0;
++ seq_printf(swap, "%s\t\t\t\t\t%s\t%lu\t%lu\t%d\n",
++ "hdv0", "partition", si.totalswap >> 10,
++ (si.totalswap - si.freeswap) >> 10, -1);
++ }
+ return 0;
+ }
+
+@@ -2064,6 +2078,8 @@ void si_swapinfo(struct sysinfo *val)
+ val->freeswap = nr_swap_pages + nr_to_be_unused;
+ val->totalswap = total_swap_pages + nr_to_be_unused;
+ spin_unlock(&swap_lock);
++ if (vx_flags(VXF_VIRT_MEM, 0))
++ vx_vsi_swapinfo(val);
+ }
+
+ /*
+diff -NurpP --minimal linux-2.6.32.1/net/core/dev.c linux-2.6.32.1-vs2.3.0.36.27/net/core/dev.c
+--- linux-2.6.32.1/net/core/dev.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/core/dev.c 2009-12-03 20:04:56.000000000 +0100
+@@ -126,6 +126,7 @@
+ #include <linux/in.h>
+ #include <linux/jhash.h>
+ #include <linux/random.h>
++#include <linux/vs_inet.h>
+ #include <trace/events/napi.h>
+
+ #include "net-sysfs.h"
+@@ -591,7 +592,8 @@ struct net_device *__dev_get_by_name(str
+ hlist_for_each(p, dev_name_hash(net, name)) {
+ struct net_device *dev
+ = hlist_entry(p, struct net_device, name_hlist);
+- if (!strncmp(dev->name, name, IFNAMSIZ))
++ if (!strncmp(dev->name, name, IFNAMSIZ) &&
++ nx_dev_visible(current_nx_info(), dev))
+ return dev;
+ }
+ return NULL;
+@@ -642,7 +644,8 @@ struct net_device *__dev_get_by_index(st
+ hlist_for_each(p, dev_index_hash(net, ifindex)) {
+ struct net_device *dev
+ = hlist_entry(p, struct net_device, index_hlist);
+- if (dev->ifindex == ifindex)
++ if ((dev->ifindex == ifindex) &&
++ nx_dev_visible(current_nx_info(), dev))
+ return dev;
+ }
+ return NULL;
+@@ -695,10 +698,12 @@ struct net_device *dev_getbyhwaddr(struc
+
+ ASSERT_RTNL();
+
+- for_each_netdev(net, dev)
++ for_each_netdev(net, dev) {
+ if (dev->type == type &&
+- !memcmp(dev->dev_addr, ha, dev->addr_len))
++ !memcmp(dev->dev_addr, ha, dev->addr_len) &&
++ nx_dev_visible(current_nx_info(), dev))
+ return dev;
++ }
+
+ return NULL;
+ }
+@@ -709,9 +714,11 @@ struct net_device *__dev_getfirstbyhwtyp
+ struct net_device *dev;
+
+ ASSERT_RTNL();
+- for_each_netdev(net, dev)
+- if (dev->type == type)
++ for_each_netdev(net, dev) {
++ if ((dev->type == type) &&
++ nx_dev_visible(current_nx_info(), dev))
+ return dev;
++ }
+
+ return NULL;
+ }
+@@ -830,6 +837,8 @@ static int __dev_alloc_name(struct net *
+ continue;
+ if (i < 0 || i >= max_netdevices)
+ continue;
++ if (!nx_dev_visible(current_nx_info(), d))
++ continue;
+
+ /* avoid cases where sscanf is not exact inverse of printf */
+ snprintf(buf, IFNAMSIZ, name, i);
+@@ -2984,6 +2993,8 @@ static int dev_ifconf(struct net *net, c
+
+ total = 0;
+ for_each_netdev(net, dev) {
++ if (!nx_dev_visible(current_nx_info(), dev))
++ continue;
+ for (i = 0; i < NPROTO; i++) {
+ if (gifconf_list[i]) {
+ int done;
+@@ -3052,6 +3063,9 @@ static void dev_seq_printf_stats(struct
+ {
+ const struct net_device_stats *stats = dev_get_stats(dev);
+
++ if (!nx_dev_visible(current_nx_info(), dev))
++ return;
++
+ seq_printf(seq, "%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu "
+ "%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
+ dev->name, stats->rx_bytes, stats->rx_packets,
+@@ -5313,6 +5327,15 @@ int dev_change_net_namespace(struct net_
+ goto out;
+ #endif
+
++#ifdef CONFIG_SYSFS
++ /* Don't allow real devices to be moved when sysfs
++ * is enabled.
++ */
++ err = -EINVAL;
++ if (dev->dev.parent)
++ goto out;
++#endif
++
+ /* Ensure the device has been registrered */
+ err = -EINVAL;
+ if (dev->reg_state != NETREG_REGISTERED)
+diff -NurpP --minimal linux-2.6.32.1/net/core/rtnetlink.c linux-2.6.32.1-vs2.3.0.36.27/net/core/rtnetlink.c
+--- linux-2.6.32.1/net/core/rtnetlink.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/core/rtnetlink.c 2009-12-03 20:04:56.000000000 +0100
+@@ -688,6 +688,8 @@ static int rtnl_dump_ifinfo(struct sk_bu
+
+ idx = 0;
+ for_each_netdev(net, dev) {
++ if (!nx_dev_visible(skb->sk->sk_nx_info, dev))
++ continue;
+ if (idx < s_idx)
+ goto cont;
+ if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
+@@ -1222,6 +1224,9 @@ void rtmsg_ifinfo(int type, struct net_d
+ struct sk_buff *skb;
+ int err = -ENOBUFS;
+
++ if (!nx_dev_visible(current_nx_info(), dev))
++ return;
++
+ skb = nlmsg_new(if_nlmsg_size(dev), GFP_KERNEL);
+ if (skb == NULL)
+ goto errout;
+diff -NurpP --minimal linux-2.6.32.1/net/core/sock.c linux-2.6.32.1-vs2.3.0.36.27/net/core/sock.c
+--- linux-2.6.32.1/net/core/sock.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/core/sock.c 2009-12-03 20:04:56.000000000 +0100
+@@ -125,6 +125,10 @@
+ #include <linux/ipsec.h>
+
+ #include <linux/filter.h>
++#include <linux/vs_socket.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
+
+ #ifdef CONFIG_INET
+ #include <net/tcp.h>
+@@ -984,6 +988,8 @@ static struct sock *sk_prot_alloc(struct
+ if (!try_module_get(prot->owner))
+ goto out_free_sec;
+ }
++ sock_vx_init(sk);
++ sock_nx_init(sk);
+
+ return sk;
+
+@@ -1063,6 +1069,11 @@ static void __sk_free(struct sock *sk)
+ __func__, atomic_read(&sk->sk_omem_alloc));
+
+ put_net(sock_net(sk));
++ vx_sock_dec(sk);
++ clr_vx_info(&sk->sk_vx_info);
++ sk->sk_xid = -1;
++ clr_nx_info(&sk->sk_nx_info);
++ sk->sk_nid = -1;
+ sk_prot_free(sk->sk_prot_creator, sk);
+ }
+
+@@ -1110,6 +1121,8 @@ struct sock *sk_clone(const struct sock
+
+ /* SANITY */
+ get_net(sock_net(newsk));
++ sock_vx_init(newsk);
++ sock_nx_init(newsk);
+ sk_node_init(&newsk->sk_node);
+ sock_lock_init(newsk);
+ bh_lock_sock(newsk);
+@@ -1164,6 +1177,12 @@ struct sock *sk_clone(const struct sock
+ smp_wmb();
+ atomic_set(&newsk->sk_refcnt, 2);
+
++ set_vx_info(&newsk->sk_vx_info, sk->sk_vx_info);
++ newsk->sk_xid = sk->sk_xid;
++ vx_sock_inc(newsk);
++ set_nx_info(&newsk->sk_nx_info, sk->sk_nx_info);
++ newsk->sk_nid = sk->sk_nid;
++
+ /*
+ * Increment the counter in the same struct proto as the master
+ * sock (sk_refcnt_debug_inc uses newsk->sk_prot->socks, that
+@@ -1882,6 +1901,12 @@ void sock_init_data(struct socket *sock,
+
+ sk->sk_stamp = ktime_set(-1L, 0);
+
++ set_vx_info(&sk->sk_vx_info, current_vx_info());
++ sk->sk_xid = vx_current_xid();
++ vx_sock_inc(sk);
++ set_nx_info(&sk->sk_nx_info, current_nx_info());
++ sk->sk_nid = nx_current_nid();
++
+ /*
+ * Before updating sk_refcnt, we must commit prior changes to memory
+ * (Documentation/RCU/rculist_nulls.txt for details)
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/af_inet.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/af_inet.c
+--- linux-2.6.32.1/net/ipv4/af_inet.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/af_inet.c 2009-12-03 20:04:56.000000000 +0100
+@@ -115,6 +115,7 @@
+ #ifdef CONFIG_IP_MROUTE
+ #include <linux/mroute.h>
+ #endif
++#include <linux/vs_limit.h>
+
+
+ /* The inetsw table contains everything that inet_create needs to
+@@ -325,9 +326,12 @@ lookup_protocol:
+ }
+
+ err = -EPERM;
++ if ((protocol == IPPROTO_ICMP) &&
++ nx_capable(answer->capability, NXC_RAW_ICMP))
++ goto override;
+ if (answer->capability > 0 && !capable(answer->capability))
+ goto out_rcu_unlock;
+-
++override:
+ err = -EAFNOSUPPORT;
+ if (!inet_netns_ok(net, protocol))
+ goto out_rcu_unlock;
+@@ -447,6 +451,7 @@ int inet_bind(struct socket *sock, struc
+ struct sockaddr_in *addr = (struct sockaddr_in *)uaddr;
+ struct sock *sk = sock->sk;
+ struct inet_sock *inet = inet_sk(sk);
++ struct nx_v4_sock_addr nsa;
+ unsigned short snum;
+ int chk_addr_ret;
+ int err;
+@@ -460,7 +465,11 @@ int inet_bind(struct socket *sock, struc
+ if (addr_len < sizeof(struct sockaddr_in))
+ goto out;
+
+- chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
++ err = v4_map_sock_addr(inet, addr, &nsa);
++ if (err)
++ goto out;
++
++ chk_addr_ret = inet_addr_type(sock_net(sk), nsa.saddr);
+
+ /* Not specified by any standard per-se, however it breaks too
+ * many applications when removed. It is unfortunate since
+@@ -472,7 +481,7 @@ int inet_bind(struct socket *sock, struc
+ err = -EADDRNOTAVAIL;
+ if (!sysctl_ip_nonlocal_bind &&
+ !(inet->freebind || inet->transparent) &&
+- addr->sin_addr.s_addr != htonl(INADDR_ANY) &&
++ nsa.saddr != htonl(INADDR_ANY) &&
+ chk_addr_ret != RTN_LOCAL &&
+ chk_addr_ret != RTN_MULTICAST &&
+ chk_addr_ret != RTN_BROADCAST)
+@@ -497,7 +506,7 @@ int inet_bind(struct socket *sock, struc
+ if (sk->sk_state != TCP_CLOSE || inet->num)
+ goto out_release_sock;
+
+- inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
++ v4_set_sock_addr(inet, &nsa);
+ if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
+ inet->saddr = 0; /* Use device */
+
+@@ -694,11 +703,13 @@ int inet_getname(struct socket *sock, st
+ peer == 1))
+ return -ENOTCONN;
+ sin->sin_port = inet->dport;
+- sin->sin_addr.s_addr = inet->daddr;
++ sin->sin_addr.s_addr =
++ nx_map_sock_lback(sk->sk_nx_info, inet->daddr);
+ } else {
+ __be32 addr = inet->rcv_saddr;
+ if (!addr)
+ addr = inet->saddr;
++ addr = nx_map_sock_lback(sk->sk_nx_info, addr);
+ sin->sin_port = inet->sport;
+ sin->sin_addr.s_addr = addr;
+ }
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/devinet.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/devinet.c
+--- linux-2.6.32.1/net/ipv4/devinet.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/devinet.c 2009-12-03 20:04:56.000000000 +0100
+@@ -413,6 +413,7 @@ struct in_device *inetdev_by_index(struc
+ return in_dev;
+ }
+
++
+ /* Called only from RTNL semaphored context. No locks. */
+
+ struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix,
+@@ -653,6 +654,8 @@ int devinet_ioctl(struct net *net, unsig
+ *colon = ':';
+
+ if ((in_dev = __in_dev_get_rtnl(dev)) != NULL) {
++ struct nx_info *nxi = current_nx_info();
++
+ if (tryaddrmatch) {
+ /* Matthias Andree */
+ /* compare label and address (4.4BSD style) */
+@@ -661,6 +664,8 @@ int devinet_ioctl(struct net *net, unsig
+ This is checked above. */
+ for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
+ ifap = &ifa->ifa_next) {
++ if (!nx_v4_ifa_visible(nxi, ifa))
++ continue;
+ if (!strcmp(ifr.ifr_name, ifa->ifa_label) &&
+ sin_orig.sin_addr.s_addr ==
+ ifa->ifa_address) {
+@@ -673,9 +678,12 @@ int devinet_ioctl(struct net *net, unsig
+ comparing just the label */
+ if (!ifa) {
+ for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
+- ifap = &ifa->ifa_next)
++ ifap = &ifa->ifa_next) {
++ if (!nx_v4_ifa_visible(nxi, ifa))
++ continue;
+ if (!strcmp(ifr.ifr_name, ifa->ifa_label))
+ break;
++ }
+ }
+ }
+
+@@ -826,6 +834,8 @@ static int inet_gifconf(struct net_devic
+ goto out;
+
+ for (; ifa; ifa = ifa->ifa_next) {
++ if (!nx_v4_ifa_visible(current_nx_info(), ifa))
++ continue;
+ if (!buf) {
+ done += sizeof(ifr);
+ continue;
+@@ -1174,6 +1184,7 @@ static int inet_dump_ifaddr(struct sk_bu
+ struct net_device *dev;
+ struct in_device *in_dev;
+ struct in_ifaddr *ifa;
++ struct sock *sk = skb->sk;
+ int s_ip_idx, s_idx = cb->args[0];
+
+ s_ip_idx = ip_idx = cb->args[1];
+@@ -1188,6 +1199,8 @@ static int inet_dump_ifaddr(struct sk_bu
+
+ for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
+ ifa = ifa->ifa_next, ip_idx++) {
++ if (sk && !nx_v4_ifa_visible(sk->sk_nx_info, ifa))
++ continue;
+ if (ip_idx < s_ip_idx)
+ continue;
+ if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/fib_hash.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/fib_hash.c
+--- linux-2.6.32.1/net/ipv4/fib_hash.c 2009-09-10 15:26:29.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/fib_hash.c 2009-12-03 20:04:56.000000000 +0100
+@@ -1021,7 +1021,7 @@ static int fib_seq_show(struct seq_file
+ prefix = f->fn_key;
+ mask = FZ_MASK(iter->zone);
+ flags = fib_flag_trans(fa->fa_type, mask, fi);
+- if (fi)
++ if (fi && nx_dev_visible(current_nx_info(), fi->fib_dev))
+ seq_printf(seq,
+ "%s\t%08X\t%08X\t%04X\t%d\t%u\t%d\t%08X\t%d\t%u\t%u%n",
+ fi->fib_dev ? fi->fib_dev->name : "*", prefix,
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/inet_connection_sock.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/inet_connection_sock.c
+--- linux-2.6.32.1/net/ipv4/inet_connection_sock.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/inet_connection_sock.c 2009-12-03 20:04:56.000000000 +0100
+@@ -49,10 +49,40 @@ void inet_get_local_port_range(int *low,
+ }
+ EXPORT_SYMBOL(inet_get_local_port_range);
+
++int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
++{
++ __be32 sk1_rcv_saddr = inet_rcv_saddr(sk1),
++ sk2_rcv_saddr = inet_rcv_saddr(sk2);
++
++ if (inet_v6_ipv6only(sk2))
++ return 0;
++
++ if (sk1_rcv_saddr &&
++ sk2_rcv_saddr &&
++ sk1_rcv_saddr == sk2_rcv_saddr)
++ return 1;
++
++ if (sk1_rcv_saddr &&
++ !sk2_rcv_saddr &&
++ v4_addr_in_nx_info(sk2->sk_nx_info, sk1_rcv_saddr, NXA_MASK_BIND))
++ return 1;
++
++ if (sk2_rcv_saddr &&
++ !sk1_rcv_saddr &&
++ v4_addr_in_nx_info(sk1->sk_nx_info, sk2_rcv_saddr, NXA_MASK_BIND))
++ return 1;
++
++ if (!sk1_rcv_saddr &&
++ !sk2_rcv_saddr &&
++ nx_v4_addr_conflict(sk1->sk_nx_info, sk2->sk_nx_info))
++ return 1;
++
++ return 0;
++}
++
+ int inet_csk_bind_conflict(const struct sock *sk,
+ const struct inet_bind_bucket *tb)
+ {
+- const __be32 sk_rcv_saddr = inet_rcv_saddr(sk);
+ struct sock *sk2;
+ struct hlist_node *node;
+ int reuse = sk->sk_reuse;
+@@ -72,9 +102,7 @@ int inet_csk_bind_conflict(const struct
+ sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
+ if (!reuse || !sk2->sk_reuse ||
+ sk2->sk_state == TCP_LISTEN) {
+- const __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
+- if (!sk2_rcv_saddr || !sk_rcv_saddr ||
+- sk2_rcv_saddr == sk_rcv_saddr)
++ if (ipv4_rcv_saddr_equal(sk, sk2))
+ break;
+ }
+ }
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/inet_diag.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/inet_diag.c
+--- linux-2.6.32.1/net/ipv4/inet_diag.c 2009-09-10 15:26:29.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/inet_diag.c 2009-12-03 20:04:56.000000000 +0100
+@@ -32,6 +32,8 @@
+ #include <linux/stddef.h>
+
+ #include <linux/inet_diag.h>
++#include <linux/vs_network.h>
++#include <linux/vs_inet.h>
+
+ static const struct inet_diag_handler **inet_diag_table;
+
+@@ -118,8 +120,8 @@ static int inet_csk_diag_fill(struct soc
+
+ r->id.idiag_sport = inet->sport;
+ r->id.idiag_dport = inet->dport;
+- r->id.idiag_src[0] = inet->rcv_saddr;
+- r->id.idiag_dst[0] = inet->daddr;
++ r->id.idiag_src[0] = nx_map_sock_lback(sk->sk_nx_info, inet->rcv_saddr);
++ r->id.idiag_dst[0] = nx_map_sock_lback(sk->sk_nx_info, inet->daddr);
+
+ #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+ if (r->idiag_family == AF_INET6) {
+@@ -204,8 +206,8 @@ static int inet_twsk_diag_fill(struct in
+ r->id.idiag_cookie[1] = (u32)(((unsigned long)tw >> 31) >> 1);
+ r->id.idiag_sport = tw->tw_sport;
+ r->id.idiag_dport = tw->tw_dport;
+- r->id.idiag_src[0] = tw->tw_rcv_saddr;
+- r->id.idiag_dst[0] = tw->tw_daddr;
++ r->id.idiag_src[0] = nx_map_sock_lback(tw->tw_nx_info, tw->tw_rcv_saddr);
++ r->id.idiag_dst[0] = nx_map_sock_lback(tw->tw_nx_info, tw->tw_daddr);
+ r->idiag_state = tw->tw_substate;
+ r->idiag_timer = 3;
+ r->idiag_expires = DIV_ROUND_UP(tmo * 1000, HZ);
+@@ -262,6 +264,7 @@ static int inet_diag_get_exact(struct sk
+ err = -EINVAL;
+
+ if (req->idiag_family == AF_INET) {
++ /* TODO: lback */
+ sk = inet_lookup(&init_net, hashinfo, req->id.idiag_dst[0],
+ req->id.idiag_dport, req->id.idiag_src[0],
+ req->id.idiag_sport, req->id.idiag_if);
+@@ -504,6 +507,7 @@ static int inet_csk_diag_dump(struct soc
+ } else
+ #endif
+ {
++ /* TODO: lback */
+ entry.saddr = &inet->rcv_saddr;
+ entry.daddr = &inet->daddr;
+ }
+@@ -540,6 +544,7 @@ static int inet_twsk_diag_dump(struct in
+ } else
+ #endif
+ {
++ /* TODO: lback */
+ entry.saddr = &tw->tw_rcv_saddr;
+ entry.daddr = &tw->tw_daddr;
+ }
+@@ -586,8 +591,8 @@ static int inet_diag_fill_req(struct sk_
+
+ r->id.idiag_sport = inet->sport;
+ r->id.idiag_dport = ireq->rmt_port;
+- r->id.idiag_src[0] = ireq->loc_addr;
+- r->id.idiag_dst[0] = ireq->rmt_addr;
++ r->id.idiag_src[0] = nx_map_sock_lback(sk->sk_nx_info, ireq->loc_addr);
++ r->id.idiag_dst[0] = nx_map_sock_lback(sk->sk_nx_info, ireq->rmt_addr);
+ r->idiag_expires = jiffies_to_msecs(tmo);
+ r->idiag_rqueue = 0;
+ r->idiag_wqueue = 0;
+@@ -657,6 +662,7 @@ static int inet_diag_dump_reqs(struct sk
+ continue;
+
+ if (bc) {
++ /* TODO: lback */
+ entry.saddr =
+ #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+ (entry.family == AF_INET6) ?
+@@ -727,6 +733,8 @@ static int inet_diag_dump(struct sk_buff
+ sk_nulls_for_each(sk, node, &ilb->head) {
+ struct inet_sock *inet = inet_sk(sk);
+
++ if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (num < s_num) {
+ num++;
+ continue;
+@@ -793,6 +801,8 @@ skip_listen_ht:
+ sk_nulls_for_each(sk, node, &head->chain) {
+ struct inet_sock *inet = inet_sk(sk);
+
++ if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (num < s_num)
+ goto next_normal;
+ if (!(r->idiag_states & (1 << sk->sk_state)))
+@@ -817,6 +827,8 @@ next_normal:
+ inet_twsk_for_each(tw, node,
+ &head->twchain) {
+
++ if (!nx_check(tw->tw_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (num < s_num)
+ goto next_dying;
+ if (r->id.idiag_sport != tw->tw_sport &&
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/inet_hashtables.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/inet_hashtables.c
+--- linux-2.6.32.1/net/ipv4/inet_hashtables.c 2009-06-11 17:13:29.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/inet_hashtables.c 2009-12-03 20:04:56.000000000 +0100
+@@ -21,6 +21,7 @@
+
+ #include <net/inet_connection_sock.h>
+ #include <net/inet_hashtables.h>
++#include <net/route.h>
+ #include <net/ip.h>
+
+ /*
+@@ -134,6 +135,11 @@ static inline int compute_score(struct s
+ if (rcv_saddr != daddr)
+ return -1;
+ score += 2;
++ } else {
++ /* block non nx_info ips */
++ if (!v4_addr_in_nx_info(sk->sk_nx_info,
++ daddr, NXA_MASK_BIND))
++ return -1;
+ }
+ if (sk->sk_bound_dev_if) {
+ if (sk->sk_bound_dev_if != dif)
+@@ -151,7 +157,6 @@ static inline int compute_score(struct s
+ * wildcarded during the search since they can never be otherwise.
+ */
+
+-
+ struct sock *__inet_lookup_listener(struct net *net,
+ struct inet_hashinfo *hashinfo,
+ const __be32 daddr, const unsigned short hnum,
+@@ -174,6 +179,7 @@ begin:
+ hiscore = score;
+ }
+ }
++
+ /*
+ * if the nulls value we got at the end of this lookup is
+ * not the expected one, we must restart lookup.
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/netfilter/nf_nat_helper.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/netfilter/nf_nat_helper.c
+--- linux-2.6.32.1/net/ipv4/netfilter/nf_nat_helper.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/netfilter/nf_nat_helper.c 2009-12-03 20:04:56.000000000 +0100
+@@ -19,6 +19,7 @@
+ #include <net/route.h>
+
+ #include <linux/netfilter_ipv4.h>
++#include <net/route.h>
+ #include <net/netfilter/nf_conntrack.h>
+ #include <net/netfilter/nf_conntrack_helper.h>
+ #include <net/netfilter/nf_conntrack_ecache.h>
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/netfilter.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/netfilter.c
+--- linux-2.6.32.1/net/ipv4/netfilter.c 2009-09-10 15:26:29.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/netfilter.c 2009-12-03 20:04:56.000000000 +0100
+@@ -4,7 +4,7 @@
+ #include <linux/netfilter_ipv4.h>
+ #include <linux/ip.h>
+ #include <linux/skbuff.h>
+-#include <net/route.h>
++// #include <net/route.h>
+ #include <net/xfrm.h>
+ #include <net/ip.h>
+ #include <net/netfilter/nf_queue.h>
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/raw.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/raw.c
+--- linux-2.6.32.1/net/ipv4/raw.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/raw.c 2009-12-03 20:04:56.000000000 +0100
+@@ -117,7 +117,7 @@ static struct sock *__raw_v4_lookup(stru
+
+ if (net_eq(sock_net(sk), net) && inet->num == num &&
+ !(inet->daddr && inet->daddr != raddr) &&
+- !(inet->rcv_saddr && inet->rcv_saddr != laddr) &&
++ v4_sock_addr_match(sk->sk_nx_info, inet, laddr) &&
+ !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
+ goto found; /* gotcha */
+ }
+@@ -383,6 +383,12 @@ static int raw_send_hdrinc(struct sock *
+ icmp_out_count(net, ((struct icmphdr *)
+ skb_transport_header(skb))->type);
+
++ err = -EPERM;
++ if (!nx_check(0, VS_ADMIN) && !capable(CAP_NET_RAW) &&
++ sk->sk_nx_info &&
++ !v4_addr_in_nx_info(sk->sk_nx_info, iph->saddr, NXA_MASK_BIND))
++ goto error_free;
++
+ err = NF_HOOK(PF_INET, NF_INET_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
+ dst_output);
+ if (err > 0)
+@@ -563,6 +569,13 @@ static int raw_sendmsg(struct kiocb *ioc
+ }
+
+ security_sk_classify_flow(sk, &fl);
++ if (sk->sk_nx_info) {
++ err = ip_v4_find_src(sock_net(sk),
++ sk->sk_nx_info, &rt, &fl);
++
++ if (err)
++ goto done;
++ }
+ err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 1);
+ }
+ if (err)
+@@ -635,17 +648,19 @@ static int raw_bind(struct sock *sk, str
+ {
+ struct inet_sock *inet = inet_sk(sk);
+ struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
++ struct nx_v4_sock_addr nsa = { 0 };
+ int ret = -EINVAL;
+ int chk_addr_ret;
+
+ if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
+ goto out;
+- chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
++ v4_map_sock_addr(inet, addr, &nsa);
++ chk_addr_ret = inet_addr_type(sock_net(sk), nsa.saddr);
+ ret = -EADDRNOTAVAIL;
+- if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
++ if (nsa.saddr && chk_addr_ret != RTN_LOCAL &&
+ chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
+ goto out;
+- inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
++ v4_set_sock_addr(inet, &nsa);
+ if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
+ inet->saddr = 0; /* Use device */
+ sk_dst_reset(sk);
+@@ -697,7 +712,8 @@ static int raw_recvmsg(struct kiocb *ioc
+ /* Copy the address. */
+ if (sin) {
+ sin->sin_family = AF_INET;
+- sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
++ sin->sin_addr.s_addr =
++ nx_map_sock_lback(sk->sk_nx_info, ip_hdr(skb)->saddr);
+ sin->sin_port = 0;
+ memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
+ }
+@@ -875,7 +891,8 @@ static struct sock *raw_get_first(struct
+ struct hlist_node *node;
+
+ sk_for_each(sk, node, &state->h->ht[state->bucket])
+- if (sock_net(sk) == seq_file_net(seq))
++ if ((sock_net(sk) == seq_file_net(seq)) &&
++ nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
+ goto found;
+ }
+ sk = NULL;
+@@ -891,7 +908,8 @@ static struct sock *raw_get_next(struct
+ sk = sk_next(sk);
+ try_again:
+ ;
+- } while (sk && sock_net(sk) != seq_file_net(seq));
++ } while (sk && ((sock_net(sk) != seq_file_net(seq)) ||
++ !nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT)));
+
+ if (!sk && ++state->bucket < RAW_HTABLE_SIZE) {
+ sk = sk_head(&state->h->ht[state->bucket]);
+@@ -950,7 +968,10 @@ static void raw_sock_seq_show(struct seq
+
+ seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
+ " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",
+- i, src, srcp, dest, destp, sp->sk_state,
++ i,
++ nx_map_sock_lback(current_nx_info(), src), srcp,
++ nx_map_sock_lback(current_nx_info(), dest), destp,
++ sp->sk_state,
+ sk_wmem_alloc_get(sp),
+ sk_rmem_alloc_get(sp),
+ 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/tcp.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/tcp.c
+--- linux-2.6.32.1/net/ipv4/tcp.c 2009-12-03 20:02:59.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/tcp.c 2009-12-03 20:04:56.000000000 +0100
+@@ -264,6 +264,7 @@
+ #include <linux/cache.h>
+ #include <linux/err.h>
+ #include <linux/crypto.h>
++#include <linux/in.h>
+
+ #include <net/icmp.h>
+ #include <net/tcp.h>
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/tcp_ipv4.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/tcp_ipv4.c
+--- linux-2.6.32.1/net/ipv4/tcp_ipv4.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/tcp_ipv4.c 2009-12-03 20:04:56.000000000 +0100
+@@ -1925,6 +1925,12 @@ static void *listening_get_next(struct s
+ req = req->dl_next;
+ while (1) {
+ while (req) {
++ vxdprintk(VXD_CBIT(net, 6),
++ "sk,req: %p [#%d] (from %d)", req->sk,
++ (req->sk)?req->sk->sk_nid:0, nx_current_nid());
++ if (req->sk &&
++ !nx_check(req->sk->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (req->rsk_ops->family == st->family) {
+ cur = req;
+ goto out;
+@@ -1949,6 +1955,10 @@ get_req:
+ }
+ get_sk:
+ sk_nulls_for_each_from(sk, node) {
++ vxdprintk(VXD_CBIT(net, 6), "sk: %p [#%d] (from %d)",
++ sk, sk->sk_nid, nx_current_nid());
++ if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (sk->sk_family == st->family && net_eq(sock_net(sk), net)) {
+ cur = sk;
+ goto out;
+@@ -2012,6 +2022,11 @@ static void *established_get_first(struc
+
+ spin_lock_bh(lock);
+ sk_nulls_for_each(sk, node, &tcp_hashinfo.ehash[st->bucket].chain) {
++ vxdprintk(VXD_CBIT(net, 6),
++ "sk,egf: %p [#%d] (from %d)",
++ sk, sk->sk_nid, nx_current_nid());
++ if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (sk->sk_family != st->family ||
+ !net_eq(sock_net(sk), net)) {
+ continue;
+@@ -2022,6 +2037,11 @@ static void *established_get_first(struc
+ st->state = TCP_SEQ_STATE_TIME_WAIT;
+ inet_twsk_for_each(tw, node,
+ &tcp_hashinfo.ehash[st->bucket].twchain) {
++ vxdprintk(VXD_CBIT(net, 6),
++ "tw: %p [#%d] (from %d)",
++ tw, tw->tw_nid, nx_current_nid());
++ if (!nx_check(tw->tw_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (tw->tw_family != st->family ||
+ !net_eq(twsk_net(tw), net)) {
+ continue;
+@@ -2050,7 +2070,9 @@ static void *established_get_next(struct
+ tw = cur;
+ tw = tw_next(tw);
+ get_tw:
+- while (tw && (tw->tw_family != st->family || !net_eq(twsk_net(tw), net))) {
++ while (tw && (tw->tw_family != st->family ||
++ !net_eq(twsk_net(tw), net) ||
++ !nx_check(tw->tw_nid, VS_WATCH_P | VS_IDENT))) {
+ tw = tw_next(tw);
+ }
+ if (tw) {
+@@ -2073,6 +2095,11 @@ get_tw:
+ sk = sk_nulls_next(sk);
+
+ sk_nulls_for_each_from(sk, node) {
++ vxdprintk(VXD_CBIT(net, 6),
++ "sk,egn: %p [#%d] (from %d)",
++ sk, sk->sk_nid, nx_current_nid());
++ if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (sk->sk_family == st->family && net_eq(sock_net(sk), net))
+ goto found;
+ }
+@@ -2224,9 +2251,9 @@ static void get_openreq4(struct sock *sk
+ seq_printf(f, "%4d: %08X:%04X %08X:%04X"
+ " %02X %08X:%08X %02X:%08lX %08X %5d %8d %u %d %p%n",
+ i,
+- ireq->loc_addr,
++ nx_map_sock_lback(current_nx_info(), ireq->loc_addr),
+ ntohs(inet_sk(sk)->sport),
+- ireq->rmt_addr,
++ nx_map_sock_lback(current_nx_info(), ireq->rmt_addr),
+ ntohs(ireq->rmt_port),
+ TCP_SYN_RECV,
+ 0, 0, /* could print option size, but that is af dependent. */
+@@ -2269,7 +2296,10 @@ static void get_tcp4_sock(struct sock *s
+
+ seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "
+ "%08X %5d %8d %lu %d %p %lu %lu %u %u %d%n",
+- i, src, srcp, dest, destp, sk->sk_state,
++ i,
++ nx_map_sock_lback(current_nx_info(), src), srcp,
++ nx_map_sock_lback(current_nx_info(), dest), destp,
++ sk->sk_state,
+ tp->write_seq - tp->snd_una,
+ sk->sk_state == TCP_LISTEN ? sk->sk_ack_backlog :
+ (tp->rcv_nxt - tp->copied_seq),
+@@ -2305,7 +2335,10 @@ static void get_timewait4_sock(struct in
+
+ seq_printf(f, "%4d: %08X:%04X %08X:%04X"
+ " %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %p%n",
+- i, src, srcp, dest, destp, tw->tw_substate, 0, 0,
++ i,
++ nx_map_sock_lback(current_nx_info(), src), srcp,
++ nx_map_sock_lback(current_nx_info(), dest), destp,
++ tw->tw_substate, 0, 0,
+ 3, jiffies_to_clock_t(ttd), 0, 0, 0, 0,
+ atomic_read(&tw->tw_refcnt), tw, len);
+ }
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/tcp_minisocks.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/tcp_minisocks.c
+--- linux-2.6.32.1/net/ipv4/tcp_minisocks.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/tcp_minisocks.c 2009-12-03 20:04:56.000000000 +0100
+@@ -26,6 +26,10 @@
+ #include <net/inet_common.h>
+ #include <net/xfrm.h>
+
++#include <linux/vs_limit.h>
++#include <linux/vs_socket.h>
++#include <linux/vs_context.h>
++
+ #ifdef CONFIG_SYSCTL
+ #define SYNC_INIT 0 /* let the user enable it */
+ #else
+@@ -294,6 +298,11 @@ void tcp_time_wait(struct sock *sk, int
+ tcptw->tw_ts_recent = tp->rx_opt.ts_recent;
+ tcptw->tw_ts_recent_stamp = tp->rx_opt.ts_recent_stamp;
+
++ tw->tw_xid = sk->sk_xid;
++ tw->tw_vx_info = NULL;
++ tw->tw_nid = sk->sk_nid;
++ tw->tw_nx_info = NULL;
++
+ #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ if (tw->tw_family == PF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
+diff -NurpP --minimal linux-2.6.32.1/net/ipv4/udp.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/udp.c
+--- linux-2.6.32.1/net/ipv4/udp.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv4/udp.c 2009-12-03 20:04:56.000000000 +0100
+@@ -224,14 +224,7 @@ fail:
+ }
+ EXPORT_SYMBOL(udp_lib_get_port);
+
+-static int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
+-{
+- struct inet_sock *inet1 = inet_sk(sk1), *inet2 = inet_sk(sk2);
+-
+- return (!ipv6_only_sock(sk2) &&
+- (!inet1->rcv_saddr || !inet2->rcv_saddr ||
+- inet1->rcv_saddr == inet2->rcv_saddr));
+-}
++extern int ipv4_rcv_saddr_equal(const struct sock *, const struct sock *);
+
+ int udp_v4_get_port(struct sock *sk, unsigned short snum)
+ {
+@@ -253,6 +246,11 @@ static inline int compute_score(struct s
+ if (inet->rcv_saddr != daddr)
+ return -1;
+ score += 2;
++ } else {
++ /* block non nx_info ips */
++ if (!v4_addr_in_nx_info(sk->sk_nx_info,
++ daddr, NXA_MASK_BIND))
++ return -1;
+ }
+ if (inet->daddr) {
+ if (inet->daddr != saddr)
+@@ -273,6 +271,7 @@ static inline int compute_score(struct s
+ return score;
+ }
+
++
+ /* UDP is nearly always wildcards out the wazoo, it makes no sense to try
+ * harder than this. -DaveM
+ */
+@@ -294,6 +293,11 @@ begin:
+ sk_nulls_for_each_rcu(sk, node, &hslot->head) {
+ score = compute_score(sk, net, saddr, hnum, sport,
+ daddr, dport, dif);
++ /* FIXME: disabled?
++ if (score == 9) {
++ result = sk;
++ break;
++ } else */
+ if (score > badness) {
+ result = sk;
+ badness = score;
+@@ -307,6 +311,7 @@ begin:
+ if (get_nulls_value(node) != hash)
+ goto begin;
+
++
+ if (result) {
+ if (unlikely(!atomic_inc_not_zero(&result->sk_refcnt)))
+ result = NULL;
+@@ -316,6 +321,7 @@ begin:
+ goto begin;
+ }
+ }
++
+ rcu_read_unlock();
+ return result;
+ }
+@@ -358,7 +364,7 @@ static inline struct sock *udp_v4_mcast_
+ s->sk_hash != hnum ||
+ (inet->daddr && inet->daddr != rmt_addr) ||
+ (inet->dport != rmt_port && inet->dport) ||
+- (inet->rcv_saddr && inet->rcv_saddr != loc_addr) ||
++ !v4_sock_addr_match(sk->sk_nx_info, inet, loc_addr) ||
+ ipv6_only_sock(s) ||
+ (s->sk_bound_dev_if && s->sk_bound_dev_if != dif))
+ continue;
+@@ -707,8 +713,13 @@ int udp_sendmsg(struct kiocb *iocb, stru
+ { .sport = inet->sport,
+ .dport = dport } } };
+ struct net *net = sock_net(sk);
++ struct nx_info *nxi = sk->sk_nx_info;
+
+ security_sk_classify_flow(sk, &fl);
++ err = ip_v4_find_src(net, nxi, &rt, &fl);
++ if (err)
++ goto out;
++
+ err = ip_route_output_flow(net, &rt, &fl, sk, 1);
+ if (err) {
+ if (err == -ENETUNREACH)
+@@ -988,7 +999,8 @@ try_again:
+ if (sin) {
+ sin->sin_family = AF_INET;
+ sin->sin_port = udp_hdr(skb)->source;
+- sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
++ sin->sin_addr.s_addr = nx_map_sock_lback(
++ skb->sk->sk_nx_info, ip_hdr(skb)->saddr);
+ memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
+ }
+ if (inet->cmsg_flags)
+@@ -1627,6 +1639,8 @@ static struct sock *udp_get_first(struct
+ sk_nulls_for_each(sk, node, &hslot->head) {
+ if (!net_eq(sock_net(sk), net))
+ continue;
++ if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (sk->sk_family == state->family)
+ goto found;
+ }
+@@ -1644,7 +1658,9 @@ static struct sock *udp_get_next(struct
+
+ do {
+ sk = sk_nulls_next(sk);
+- } while (sk && (!net_eq(sock_net(sk), net) || sk->sk_family != state->family));
++ } while (sk && (!net_eq(sock_net(sk), net) ||
++ sk->sk_family != state->family ||
++ !nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT)));
+
+ if (!sk) {
+ if (state->bucket < UDP_HTABLE_SIZE)
+@@ -1751,7 +1767,10 @@ static void udp4_format_sock(struct sock
+
+ seq_printf(f, "%4d: %08X:%04X %08X:%04X"
+ " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d%n",
+- bucket, src, srcp, dest, destp, sp->sk_state,
++ bucket,
++ nx_map_sock_lback(current_nx_info(), src), srcp,
++ nx_map_sock_lback(current_nx_info(), dest), destp,
++ sp->sk_state,
+ sk_wmem_alloc_get(sp),
+ sk_rmem_alloc_get(sp),
+ 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/addrconf.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/addrconf.c
+--- linux-2.6.32.1/net/ipv6/addrconf.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/addrconf.c 2009-12-03 20:04:56.000000000 +0100
+@@ -86,6 +86,8 @@
+
+ #include <linux/proc_fs.h>
+ #include <linux/seq_file.h>
++#include <linux/vs_network.h>
++#include <linux/vs_inet6.h>
+
+ /* Set to 3 to get tracing... */
+ #define ACONF_DEBUG 2
+@@ -1119,7 +1121,7 @@ out:
+
+ int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev,
+ const struct in6_addr *daddr, unsigned int prefs,
+- struct in6_addr *saddr)
++ struct in6_addr *saddr, struct nx_info *nxi)
+ {
+ struct ipv6_saddr_score scores[2],
+ *score = &scores[0], *hiscore = &scores[1];
+@@ -1192,6 +1194,8 @@ int ipv6_dev_get_saddr(struct net *net,
+ dev->name);
+ continue;
+ }
++ if (!v6_addr_in_nx_info(nxi, &score->ifa->addr, -1))
++ continue;
+
+ score->rule = -1;
+ bitmap_zero(score->scorebits, IPV6_SADDR_RULE_MAX);
+@@ -3000,7 +3004,10 @@ static void if6_seq_stop(struct seq_file
+ static int if6_seq_show(struct seq_file *seq, void *v)
+ {
+ struct inet6_ifaddr *ifp = (struct inet6_ifaddr *)v;
+- seq_printf(seq, "%pi6 %02x %02x %02x %02x %8s\n",
++
++ if (nx_check(0, VS_ADMIN|VS_WATCH) ||
++ v6_addr_in_nx_info(current_nx_info(), &ifp->addr, -1))
++ seq_printf(seq, "%pi6 %02x %02x %02x %02x %8s\n",
+ &ifp->addr,
+ ifp->idev->dev->ifindex,
+ ifp->prefix_len,
+@@ -3497,6 +3504,12 @@ static int inet6_dump_addr(struct sk_buf
+ struct ifmcaddr6 *ifmca;
+ struct ifacaddr6 *ifaca;
+ struct net *net = sock_net(skb->sk);
++ struct nx_info *nxi = skb->sk ? skb->sk->sk_nx_info : NULL;
++
++ /* disable ipv6 on non v6 guests */
++ if (nxi && !nx_info_has_v6(nxi))
++ return skb->len;
++
+
+ s_idx = cb->args[0];
+ s_ip_idx = ip_idx = cb->args[1];
+@@ -3518,6 +3531,8 @@ static int inet6_dump_addr(struct sk_buf
+ ifa = ifa->if_next, ip_idx++) {
+ if (ip_idx < s_ip_idx)
+ continue;
++ if (!v6_addr_in_nx_info(nxi, &ifa->addr, -1))
++ continue;
+ err = inet6_fill_ifaddr(skb, ifa,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+@@ -3531,6 +3546,8 @@ static int inet6_dump_addr(struct sk_buf
+ ifmca = ifmca->next, ip_idx++) {
+ if (ip_idx < s_ip_idx)
+ continue;
++ if (!v6_addr_in_nx_info(nxi, &ifmca->mca_addr, -1))
++ continue;
+ err = inet6_fill_ifmcaddr(skb, ifmca,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+@@ -3544,6 +3561,8 @@ static int inet6_dump_addr(struct sk_buf
+ ifaca = ifaca->aca_next, ip_idx++) {
+ if (ip_idx < s_ip_idx)
+ continue;
++ if (!v6_addr_in_nx_info(nxi, &ifaca->aca_addr, -1))
++ continue;
+ err = inet6_fill_ifacaddr(skb, ifaca,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+@@ -3830,12 +3849,19 @@ static int inet6_dump_ifinfo(struct sk_b
+ int s_idx = cb->args[0];
+ struct net_device *dev;
+ struct inet6_dev *idev;
++ struct nx_info *nxi = skb->sk ? skb->sk->sk_nx_info : NULL;
++
++ /* FIXME: maybe disable ipv6 on non v6 guests?
++ if (skb->sk && skb->sk->sk_vx_info)
++ return skb->len; */
+
+ read_lock(&dev_base_lock);
+ idx = 0;
+ for_each_netdev(net, dev) {
+ if (idx < s_idx)
+ goto cont;
++ if (!v6_dev_in_nx_info(dev, nxi))
++ goto cont;
+ if ((idev = in6_dev_get(dev)) == NULL)
+ goto cont;
+ err = inet6_fill_ifinfo(skb, idev, NETLINK_CB(cb->skb).pid,
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/af_inet6.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/af_inet6.c
+--- linux-2.6.32.1/net/ipv6/af_inet6.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/af_inet6.c 2009-12-03 20:04:56.000000000 +0100
+@@ -41,6 +41,8 @@
+ #include <linux/netdevice.h>
+ #include <linux/icmpv6.h>
+ #include <linux/netfilter_ipv6.h>
++#include <linux/vs_inet.h>
++#include <linux/vs_inet6.h>
+
+ #include <net/ip.h>
+ #include <net/ipv6.h>
+@@ -158,9 +160,12 @@ lookup_protocol:
+ }
+
+ err = -EPERM;
++ if ((protocol == IPPROTO_ICMPV6) &&
++ nx_capable(answer->capability, NXC_RAW_ICMP))
++ goto override;
+ if (answer->capability > 0 && !capable(answer->capability))
+ goto out_rcu_unlock;
+-
++override:
+ sock->ops = answer->ops;
+ answer_prot = answer->prot;
+ answer_no_check = answer->no_check;
+@@ -259,6 +264,7 @@ int inet6_bind(struct socket *sock, stru
+ struct inet_sock *inet = inet_sk(sk);
+ struct ipv6_pinfo *np = inet6_sk(sk);
+ struct net *net = sock_net(sk);
++ struct nx_v6_sock_addr nsa;
+ __be32 v4addr = 0;
+ unsigned short snum;
+ int addr_type = 0;
+@@ -270,6 +276,11 @@ int inet6_bind(struct socket *sock, stru
+
+ if (addr_len < SIN6_LEN_RFC2133)
+ return -EINVAL;
++
++ err = v6_map_sock_addr(inet, addr, &nsa);
++ if (err)
++ return err;
++
+ addr_type = ipv6_addr_type(&addr->sin6_addr);
+ if ((addr_type & IPV6_ADDR_MULTICAST) && sock->type == SOCK_STREAM)
+ return -EINVAL;
+@@ -301,6 +312,7 @@ int inet6_bind(struct socket *sock, stru
+ /* Reproduce AF_INET checks to make the bindings consitant */
+ v4addr = addr->sin6_addr.s6_addr32[3];
+ chk_addr_ret = inet_addr_type(net, v4addr);
++
+ if (!sysctl_ip_nonlocal_bind &&
+ !(inet->freebind || inet->transparent) &&
+ v4addr != htonl(INADDR_ANY) &&
+@@ -310,6 +322,10 @@ int inet6_bind(struct socket *sock, stru
+ err = -EADDRNOTAVAIL;
+ goto out;
+ }
++ if (!v4_addr_in_nx_info(sk->sk_nx_info, v4addr, NXA_MASK_BIND)) {
++ err = -EADDRNOTAVAIL;
++ goto out;
++ }
+ } else {
+ if (addr_type != IPV6_ADDR_ANY) {
+ struct net_device *dev = NULL;
+@@ -335,6 +351,11 @@ int inet6_bind(struct socket *sock, stru
+ }
+ }
+
++ if (!v6_addr_in_nx_info(sk->sk_nx_info, &addr->sin6_addr, -1)) {
++ err = -EADDRNOTAVAIL;
++ goto out;
++ }
++
+ /* ipv4 addr of the socket is invalid. Only the
+ * unspecified and mapped address have a v4 equivalent.
+ */
+@@ -353,6 +374,8 @@ int inet6_bind(struct socket *sock, stru
+ }
+ }
+
++ v6_set_sock_addr(inet, &nsa);
++
+ inet->rcv_saddr = v4addr;
+ inet->saddr = v4addr;
+
+@@ -448,9 +471,11 @@ int inet6_getname(struct socket *sock, s
+ return -ENOTCONN;
+ sin->sin6_port = inet->dport;
+ ipv6_addr_copy(&sin->sin6_addr, &np->daddr);
++ /* FIXME: remap lback? */
+ if (np->sndflow)
+ sin->sin6_flowinfo = np->flow_label;
+ } else {
++ /* FIXME: remap lback? */
+ if (ipv6_addr_any(&np->rcv_saddr))
+ ipv6_addr_copy(&sin->sin6_addr, &np->saddr);
+ else
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/fib6_rules.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/fib6_rules.c
+--- linux-2.6.32.1/net/ipv6/fib6_rules.c 2009-09-10 15:26:30.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/fib6_rules.c 2009-12-03 20:04:56.000000000 +0100
+@@ -96,7 +96,7 @@ static int fib6_rule_action(struct fib_r
+ if (ipv6_dev_get_saddr(net,
+ ip6_dst_idev(&rt->u.dst)->dev,
+ &flp->fl6_dst, srcprefs,
+- &saddr))
++ &saddr, NULL))
+ goto again;
+ if (!ipv6_prefix_equal(&saddr, &r->src.addr,
+ r->src.plen))
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/inet6_hashtables.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/inet6_hashtables.c
+--- linux-2.6.32.1/net/ipv6/inet6_hashtables.c 2009-03-24 14:22:46.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/inet6_hashtables.c 2009-12-03 20:04:56.000000000 +0100
+@@ -16,6 +16,7 @@
+
+ #include <linux/module.h>
+ #include <linux/random.h>
++#include <linux/vs_inet6.h>
+
+ #include <net/inet_connection_sock.h>
+ #include <net/inet_hashtables.h>
+@@ -76,7 +77,6 @@ struct sock *__inet6_lookup_established(
+ unsigned int slot = hash & (hashinfo->ehash_size - 1);
+ struct inet_ehash_bucket *head = &hashinfo->ehash[slot];
+
+-
+ rcu_read_lock();
+ begin:
+ sk_nulls_for_each_rcu(sk, node, &head->chain) {
+@@ -88,7 +88,7 @@ begin:
+ sock_put(sk);
+ goto begin;
+ }
+- goto out;
++ goto out;
+ }
+ }
+ if (get_nulls_value(node) != slot)
+@@ -134,6 +134,9 @@ static int inline compute_score(struct s
+ if (!ipv6_addr_equal(&np->rcv_saddr, daddr))
+ return -1;
+ score++;
++ } else {
++ if (!v6_addr_in_nx_info(sk->sk_nx_info, daddr, -1))
++ return -1;
+ }
+ if (sk->sk_bound_dev_if) {
+ if (sk->sk_bound_dev_if != dif)
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/ip6_output.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/ip6_output.c
+--- linux-2.6.32.1/net/ipv6/ip6_output.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/ip6_output.c 2009-12-03 20:04:56.000000000 +0100
+@@ -934,7 +934,7 @@ static int ip6_dst_lookup_tail(struct so
+ err = ipv6_dev_get_saddr(net, ip6_dst_idev(*dst)->dev,
+ &fl->fl6_dst,
+ sk ? inet6_sk(sk)->srcprefs : 0,
+- &fl->fl6_src);
++ &fl->fl6_src, sk->sk_nx_info);
+ if (err)
+ goto out_err_release;
+ }
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/Kconfig linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/Kconfig
+--- linux-2.6.32.1/net/ipv6/Kconfig 2009-09-10 15:26:30.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/Kconfig 2009-12-03 20:04:56.000000000 +0100
+@@ -4,8 +4,8 @@
+
+ # IPv6 as module will cause a CRASH if you try to unload it
+ menuconfig IPV6
+- tristate "The IPv6 protocol"
+- default m
++ bool "The IPv6 protocol"
++ default n
+ ---help---
+ This is complemental support for the IP version 6.
+ You will still be able to do traditional IPv4 networking as well.
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/ndisc.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/ndisc.c
+--- linux-2.6.32.1/net/ipv6/ndisc.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/ndisc.c 2009-12-03 20:04:56.000000000 +0100
+@@ -589,7 +589,7 @@ static void ndisc_send_na(struct net_dev
+ } else {
+ if (ipv6_dev_get_saddr(dev_net(dev), dev, daddr,
+ inet6_sk(dev_net(dev)->ipv6.ndisc_sk)->srcprefs,
+- &tmpaddr))
++ &tmpaddr, NULL /* FIXME: ? */ ))
+ return;
+ src_addr = &tmpaddr;
+ }
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/raw.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/raw.c
+--- linux-2.6.32.1/net/ipv6/raw.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/raw.c 2009-12-03 20:04:56.000000000 +0100
+@@ -29,6 +29,7 @@
+ #include <linux/icmpv6.h>
+ #include <linux/netfilter.h>
+ #include <linux/netfilter_ipv6.h>
++#include <linux/vs_inet6.h>
+ #include <linux/skbuff.h>
+ #include <asm/uaccess.h>
+ #include <asm/ioctls.h>
+@@ -281,6 +282,13 @@ static int rawv6_bind(struct sock *sk, s
+ }
+ }
+
++ if (!v6_addr_in_nx_info(sk->sk_nx_info, &addr->sin6_addr, -1)) {
++ err = -EADDRNOTAVAIL;
++ if (dev)
++ dev_put(dev);
++ goto out;
++ }
++
+ /* ipv4 addr of the socket is invalid. Only the
+ * unspecified and mapped address have a v4 equivalent.
+ */
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/route.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/route.c
+--- linux-2.6.32.1/net/ipv6/route.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/route.c 2009-12-03 20:04:56.000000000 +0100
+@@ -2257,7 +2257,8 @@ static int rt6_fill_node(struct net *net
+ struct inet6_dev *idev = ip6_dst_idev(&rt->u.dst);
+ struct in6_addr saddr_buf;
+ if (ipv6_dev_get_saddr(net, idev ? idev->dev : NULL,
+- dst, 0, &saddr_buf) == 0)
++ dst, 0, &saddr_buf,
++ (skb->sk ? skb->sk->sk_nx_info : NULL)) == 0)
+ NLA_PUT(skb, RTA_PREFSRC, 16, &saddr_buf);
+ }
+
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/tcp_ipv6.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/tcp_ipv6.c
+--- linux-2.6.32.1/net/ipv6/tcp_ipv6.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/tcp_ipv6.c 2009-12-03 20:04:56.000000000 +0100
+@@ -68,6 +68,7 @@
+
+ #include <linux/crypto.h>
+ #include <linux/scatterlist.h>
++#include <linux/vs_inet6.h>
+
+ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb);
+ static void tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+@@ -156,8 +157,15 @@ static int tcp_v6_connect(struct sock *s
+ * connect() to INADDR_ANY means loopback (BSD'ism).
+ */
+
+- if(ipv6_addr_any(&usin->sin6_addr))
+- usin->sin6_addr.s6_addr[15] = 0x1;
++ if(ipv6_addr_any(&usin->sin6_addr)) {
++ struct nx_info *nxi = sk->sk_nx_info;
++
++ if (nxi && nx_info_has_v6(nxi))
++ /* FIXME: remap lback? */
++ usin->sin6_addr = nxi->v6.ip;
++ else
++ usin->sin6_addr.s6_addr[15] = 0x1;
++ }
+
+ addr_type = ipv6_addr_type(&usin->sin6_addr);
+
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/udp.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/udp.c
+--- linux-2.6.32.1/net/ipv6/udp.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/udp.c 2009-12-03 20:04:56.000000000 +0100
+@@ -47,6 +47,7 @@
+
+ #include <linux/proc_fs.h>
+ #include <linux/seq_file.h>
++#include <linux/vs_inet6.h>
+ #include "udp_impl.h"
+
+ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
+@@ -61,24 +62,49 @@ int ipv6_rcv_saddr_equal(const struct so
+ int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED;
+
+ /* if both are mapped, treat as IPv4 */
+- if (addr_type == IPV6_ADDR_MAPPED && addr_type2 == IPV6_ADDR_MAPPED)
+- return (!sk2_ipv6only &&
++ if (addr_type == IPV6_ADDR_MAPPED && addr_type2 == IPV6_ADDR_MAPPED) {
++ if (!sk2_ipv6only &&
+ (!sk_rcv_saddr || !sk2_rcv_saddr ||
+- sk_rcv_saddr == sk2_rcv_saddr));
++ sk_rcv_saddr == sk2_rcv_saddr))
++ goto vs_v4;
++ else
++ return 0;
++ }
+
+ if (addr_type2 == IPV6_ADDR_ANY &&
+ !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED))
+- return 1;
++ goto vs;
+
+ if (addr_type == IPV6_ADDR_ANY &&
+ !(sk_ipv6only && addr_type2 == IPV6_ADDR_MAPPED))
+- return 1;
++ goto vs;
+
+ if (sk2_rcv_saddr6 &&
+ ipv6_addr_equal(sk_rcv_saddr6, sk2_rcv_saddr6))
+- return 1;
++ goto vs;
+
+ return 0;
++
++vs_v4:
++ if (!sk_rcv_saddr && !sk2_rcv_saddr)
++ return nx_v4_addr_conflict(sk->sk_nx_info, sk2->sk_nx_info);
++ if (!sk2_rcv_saddr)
++ return v4_addr_in_nx_info(sk->sk_nx_info, sk2_rcv_saddr, -1);
++ if (!sk_rcv_saddr)
++ return v4_addr_in_nx_info(sk2->sk_nx_info, sk_rcv_saddr, -1);
++ return 1;
++vs:
++ if (addr_type2 == IPV6_ADDR_ANY && addr_type == IPV6_ADDR_ANY)
++ return nx_v6_addr_conflict(sk->sk_nx_info, sk2->sk_nx_info);
++ else if (addr_type2 == IPV6_ADDR_ANY)
++ return v6_addr_in_nx_info(sk2->sk_nx_info, sk_rcv_saddr6, -1);
++ else if (addr_type == IPV6_ADDR_ANY) {
++ if (addr_type2 == IPV6_ADDR_MAPPED)
++ return nx_v4_addr_conflict(sk->sk_nx_info, sk2->sk_nx_info);
++ else
++ return v6_addr_in_nx_info(sk->sk_nx_info, sk2_rcv_saddr6, -1);
++ }
++ return 1;
+ }
+
+ int udp_v6_get_port(struct sock *sk, unsigned short snum)
+@@ -109,6 +135,10 @@ static inline int compute_score(struct s
+ if (!ipv6_addr_equal(&np->rcv_saddr, daddr))
+ return -1;
+ score++;
++ } else {
++ /* block non nx_info ips */
++ if (!v6_addr_in_nx_info(sk->sk_nx_info, daddr, -1))
++ return -1;
+ }
+ if (!ipv6_addr_any(&np->daddr)) {
+ if (!ipv6_addr_equal(&np->daddr, saddr))
+diff -NurpP --minimal linux-2.6.32.1/net/ipv6/xfrm6_policy.c linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/xfrm6_policy.c
+--- linux-2.6.32.1/net/ipv6/xfrm6_policy.c 2009-12-03 20:03:00.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/ipv6/xfrm6_policy.c 2009-12-03 20:04:56.000000000 +0100
+@@ -63,7 +63,7 @@ static int xfrm6_get_saddr(struct net *n
+ dev = ip6_dst_idev(dst)->dev;
+ ipv6_dev_get_saddr(dev_net(dev), dev,
+ (struct in6_addr *)&daddr->a6, 0,
+- (struct in6_addr *)&saddr->a6);
++ (struct in6_addr *)&saddr->a6, NULL);
+ dst_release(dst);
+ return 0;
+ }
+diff -NurpP --minimal linux-2.6.32.1/net/netlink/af_netlink.c linux-2.6.32.1-vs2.3.0.36.27/net/netlink/af_netlink.c
+--- linux-2.6.32.1/net/netlink/af_netlink.c 2009-12-03 20:03:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/netlink/af_netlink.c 2009-12-03 20:04:56.000000000 +0100
+@@ -55,6 +55,9 @@
+ #include <linux/types.h>
+ #include <linux/audit.h>
+ #include <linux/mutex.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_limit.h>
+
+ #include <net/net_namespace.h>
+ #include <net/sock.h>
+@@ -1899,6 +1902,8 @@ static struct sock *netlink_seq_socket_i
+ sk_for_each(s, node, &hash->table[j]) {
+ if (sock_net(s) != seq_file_net(seq))
+ continue;
++ if (!nx_check(s->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (off == pos) {
+ iter->link = i;
+ iter->hash_idx = j;
+@@ -1933,7 +1938,8 @@ static void *netlink_seq_next(struct seq
+ s = v;
+ do {
+ s = sk_next(s);
+- } while (s && sock_net(s) != seq_file_net(seq));
++ } while (s && (sock_net(s) != seq_file_net(seq) ||
++ !nx_check(s->sk_nid, VS_WATCH_P | VS_IDENT)));
+ if (s)
+ return s;
+
+@@ -1945,7 +1951,8 @@ static void *netlink_seq_next(struct seq
+
+ for (; j <= hash->mask; j++) {
+ s = sk_head(&hash->table[j]);
+- while (s && sock_net(s) != seq_file_net(seq))
++ while (s && (sock_net(s) != seq_file_net(seq) ||
++ !nx_check(s->sk_nid, VS_WATCH_P | VS_IDENT)))
+ s = sk_next(s);
+ if (s) {
+ iter->link = i;
+diff -NurpP --minimal linux-2.6.32.1/net/sctp/ipv6.c linux-2.6.32.1-vs2.3.0.36.27/net/sctp/ipv6.c
+--- linux-2.6.32.1/net/sctp/ipv6.c 2009-12-03 20:03:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/sctp/ipv6.c 2009-12-03 20:04:56.000000000 +0100
+@@ -316,7 +316,8 @@ static void sctp_v6_get_saddr(struct sct
+ dst ? ip6_dst_idev(dst)->dev : NULL,
+ &daddr->v6.sin6_addr,
+ inet6_sk(&sk->inet.sk)->srcprefs,
+- &saddr->v6.sin6_addr);
++ &saddr->v6.sin6_addr,
++ asoc->base.sk->sk_nx_info);
+ SCTP_DEBUG_PRINTK("saddr from ipv6_get_saddr: %pI6\n",
+ &saddr->v6.sin6_addr);
+ return;
+diff -NurpP --minimal linux-2.6.32.1/net/socket.c linux-2.6.32.1-vs2.3.0.36.27/net/socket.c
+--- linux-2.6.32.1/net/socket.c 2009-12-03 20:03:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/socket.c 2009-12-03 20:04:56.000000000 +0100
+@@ -96,6 +96,10 @@
+
+ #include <net/sock.h>
+ #include <linux/netfilter.h>
++#include <linux/vs_base.h>
++#include <linux/vs_socket.h>
++#include <linux/vs_inet.h>
++#include <linux/vs_inet6.h>
+
+ static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
+ static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
+@@ -559,7 +563,7 @@ static inline int __sock_sendmsg(struct
+ struct msghdr *msg, size_t size)
+ {
+ struct sock_iocb *si = kiocb_to_siocb(iocb);
+- int err;
++ int err, len;
+
+ si->sock = sock;
+ si->scm = NULL;
+@@ -570,7 +574,22 @@ static inline int __sock_sendmsg(struct
+ if (err)
+ return err;
+
+- return sock->ops->sendmsg(iocb, sock, msg, size);
++ len = sock->ops->sendmsg(iocb, sock, msg, size);
++ if (sock->sk) {
++ if (len == size)
++ vx_sock_send(sock->sk, size);
++ else
++ vx_sock_fail(sock->sk, size);
++ }
++ vxdprintk(VXD_CBIT(net, 7),
++ "__sock_sendmsg: %p[%p,%p,%p;%d/%d]:%d/%d",
++ sock, sock->sk,
++ (sock->sk)?sock->sk->sk_nx_info:0,
++ (sock->sk)?sock->sk->sk_vx_info:0,
++ (sock->sk)?sock->sk->sk_xid:0,
++ (sock->sk)?sock->sk->sk_nid:0,
++ (unsigned int)size, len);
++ return len;
+ }
+
+ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
+@@ -671,7 +690,7 @@ EXPORT_SYMBOL_GPL(__sock_recv_timestamp)
+ static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t size, int flags)
+ {
+- int err;
++ int err, len;
+ struct sock_iocb *si = kiocb_to_siocb(iocb);
+
+ si->sock = sock;
+@@ -684,7 +703,18 @@ static inline int __sock_recvmsg(struct
+ if (err)
+ return err;
+
+- return sock->ops->recvmsg(iocb, sock, msg, size, flags);
++ len = sock->ops->recvmsg(iocb, sock, msg, size, flags);
++ if ((len >= 0) && sock->sk)
++ vx_sock_recv(sock->sk, len);
++ vxdprintk(VXD_CBIT(net, 7),
++ "__sock_recvmsg: %p[%p,%p,%p;%d/%d]:%d/%d",
++ sock, sock->sk,
++ (sock->sk)?sock->sk->sk_nx_info:0,
++ (sock->sk)?sock->sk->sk_vx_info:0,
++ (sock->sk)?sock->sk->sk_xid:0,
++ (sock->sk)?sock->sk->sk_nid:0,
++ (unsigned int)size, len);
++ return len;
+ }
+
+ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
+@@ -1155,6 +1185,13 @@ static int __sock_create(struct net *net
+ if (type < 0 || type >= SOCK_MAX)
+ return -EINVAL;
+
++ if (!nx_check(0, VS_ADMIN)) {
++ if (family == PF_INET && !current_nx_info_has_v4())
++ return -EAFNOSUPPORT;
++ if (family == PF_INET6 && !current_nx_info_has_v6())
++ return -EAFNOSUPPORT;
++ }
++
+ /* Compatibility.
+
+ This uglymoron is moved from INET layer to here to avoid
+@@ -1287,6 +1324,7 @@ SYSCALL_DEFINE3(socket, int, family, int
+ if (retval < 0)
+ goto out;
+
++ set_bit(SOCK_USER_SOCKET, &sock->flags);
+ retval = sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK));
+ if (retval < 0)
+ goto out_release;
+@@ -1328,10 +1366,12 @@ SYSCALL_DEFINE4(socketpair, int, family,
+ err = sock_create(family, type, protocol, &sock1);
+ if (err < 0)
+ goto out;
++ set_bit(SOCK_USER_SOCKET, &sock1->flags);
+
+ err = sock_create(family, type, protocol, &sock2);
+ if (err < 0)
+ goto out_release_1;
++ set_bit(SOCK_USER_SOCKET, &sock2->flags);
+
+ err = sock1->ops->socketpair(sock1, sock2);
+ if (err < 0)
+diff -NurpP --minimal linux-2.6.32.1/net/sunrpc/auth.c linux-2.6.32.1-vs2.3.0.36.27/net/sunrpc/auth.c
+--- linux-2.6.32.1/net/sunrpc/auth.c 2009-12-03 20:03:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/sunrpc/auth.c 2009-12-03 20:04:56.000000000 +0100
+@@ -14,6 +14,7 @@
+ #include <linux/hash.h>
+ #include <linux/sunrpc/clnt.h>
+ #include <linux/spinlock.h>
++#include <linux/vs_tag.h>
+
+ #ifdef RPC_DEBUG
+ # define RPCDBG_FACILITY RPCDBG_AUTH
+@@ -360,6 +361,7 @@ rpcauth_lookupcred(struct rpc_auth *auth
+ memset(&acred, 0, sizeof(acred));
+ acred.uid = cred->fsuid;
+ acred.gid = cred->fsgid;
++ acred.tag = dx_current_tag();
+ acred.group_info = get_group_info(((struct cred *)cred)->group_info);
+
+ ret = auth->au_ops->lookup_cred(auth, &acred, flags);
+@@ -400,6 +402,7 @@ rpcauth_bind_root_cred(struct rpc_task *
+ struct auth_cred acred = {
+ .uid = 0,
+ .gid = 0,
++ .tag = dx_current_tag(),
+ };
+ struct rpc_cred *ret;
+
+diff -NurpP --minimal linux-2.6.32.1/net/sunrpc/auth_unix.c linux-2.6.32.1-vs2.3.0.36.27/net/sunrpc/auth_unix.c
+--- linux-2.6.32.1/net/sunrpc/auth_unix.c 2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/sunrpc/auth_unix.c 2009-12-03 20:04:56.000000000 +0100
+@@ -11,12 +11,14 @@
+ #include <linux/module.h>
+ #include <linux/sunrpc/clnt.h>
+ #include <linux/sunrpc/auth.h>
++#include <linux/vs_tag.h>
+
+ #define NFS_NGROUPS 16
+
+ struct unx_cred {
+ struct rpc_cred uc_base;
+ gid_t uc_gid;
++ tag_t uc_tag;
+ gid_t uc_gids[NFS_NGROUPS];
+ };
+ #define uc_uid uc_base.cr_uid
+@@ -78,6 +80,7 @@ unx_create_cred(struct rpc_auth *auth, s
+ groups = NFS_NGROUPS;
+
+ cred->uc_gid = acred->gid;
++ cred->uc_tag = acred->tag;
+ for (i = 0; i < groups; i++)
+ cred->uc_gids[i] = GROUP_AT(acred->group_info, i);
+ if (i < NFS_NGROUPS)
+@@ -119,7 +122,9 @@ unx_match(struct auth_cred *acred, struc
+ unsigned int i;
+
+
+- if (cred->uc_uid != acred->uid || cred->uc_gid != acred->gid)
++ if (cred->uc_uid != acred->uid ||
++ cred->uc_gid != acred->gid ||
++ cred->uc_tag != acred->tag)
+ return 0;
+
+ if (acred->group_info != NULL)
+@@ -142,7 +147,7 @@ unx_marshal(struct rpc_task *task, __be3
+ struct rpc_clnt *clnt = task->tk_client;
+ struct unx_cred *cred = container_of(task->tk_msg.rpc_cred, struct unx_cred, uc_base);
+ __be32 *base, *hold;
+- int i;
++ int i, tag;
+
+ *p++ = htonl(RPC_AUTH_UNIX);
+ base = p++;
+@@ -152,9 +157,12 @@ unx_marshal(struct rpc_task *task, __be3
+ * Copy the UTS nodename captured when the client was created.
+ */
+ p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen);
++ tag = task->tk_client->cl_tag;
+
+- *p++ = htonl((u32) cred->uc_uid);
+- *p++ = htonl((u32) cred->uc_gid);
++ *p++ = htonl((u32) TAGINO_UID(tag,
++ cred->uc_uid, cred->uc_tag));
++ *p++ = htonl((u32) TAGINO_GID(tag,
++ cred->uc_gid, cred->uc_tag));
+ hold = p++;
+ for (i = 0; i < 16 && cred->uc_gids[i] != (gid_t) NOGROUP; i++)
+ *p++ = htonl((u32) cred->uc_gids[i]);
+diff -NurpP --minimal linux-2.6.32.1/net/sunrpc/clnt.c linux-2.6.32.1-vs2.3.0.36.27/net/sunrpc/clnt.c
+--- linux-2.6.32.1/net/sunrpc/clnt.c 2009-12-03 20:03:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/sunrpc/clnt.c 2009-12-03 20:04:56.000000000 +0100
+@@ -33,6 +33,7 @@
+ #include <linux/utsname.h>
+ #include <linux/workqueue.h>
+ #include <linux/in6.h>
++#include <linux/vs_cvirt.h>
+
+ #include <linux/sunrpc/clnt.h>
+ #include <linux/sunrpc/rpc_pipe_fs.h>
+@@ -358,6 +359,9 @@ struct rpc_clnt *rpc_create(struct rpc_c
+ if (!(args->flags & RPC_CLNT_CREATE_QUIET))
+ clnt->cl_chatty = 1;
+
++ /* TODO: handle RPC_CLNT_CREATE_TAGGED
++ if (args->flags & RPC_CLNT_CREATE_TAGGED)
++ clnt->cl_tag = 1; */
+ return clnt;
+ }
+ EXPORT_SYMBOL_GPL(rpc_create);
+diff -NurpP --minimal linux-2.6.32.1/net/unix/af_unix.c linux-2.6.32.1-vs2.3.0.36.27/net/unix/af_unix.c
+--- linux-2.6.32.1/net/unix/af_unix.c 2009-12-03 20:03:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/unix/af_unix.c 2009-12-03 20:04:56.000000000 +0100
+@@ -114,6 +114,8 @@
+ #include <linux/mount.h>
+ #include <net/checksum.h>
+ #include <linux/security.h>
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
+
+ static struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1];
+ static DEFINE_SPINLOCK(unix_table_lock);
+@@ -258,6 +260,8 @@ static struct sock *__unix_find_socket_b
+ if (!net_eq(sock_net(s), net))
+ continue;
+
++ if (!nx_check(s->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (u->addr->len == len &&
+ !memcmp(u->addr->name, sunname, len))
+ goto found;
+@@ -2114,6 +2118,8 @@ static struct sock *unix_seq_idx(struct
+ for (s = first_unix_socket(&iter->i); s; s = next_unix_socket(&iter->i, s)) {
+ if (sock_net(s) != seq_file_net(seq))
+ continue;
++ if (!nx_check(s->sk_nid, VS_WATCH_P | VS_IDENT))
++ continue;
+ if (off == pos)
+ return s;
+ ++off;
+@@ -2138,7 +2144,8 @@ static void *unix_seq_next(struct seq_fi
+ sk = first_unix_socket(&iter->i);
+ else
+ sk = next_unix_socket(&iter->i, sk);
+- while (sk && (sock_net(sk) != seq_file_net(seq)))
++ while (sk && (sock_net(sk) != seq_file_net(seq) ||
++ !nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT)))
+ sk = next_unix_socket(&iter->i, sk);
+ return sk;
+ }
+diff -NurpP --minimal linux-2.6.32.1/net/x25/af_x25.c linux-2.6.32.1-vs2.3.0.36.27/net/x25/af_x25.c
+--- linux-2.6.32.1/net/x25/af_x25.c 2009-12-03 20:03:01.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/net/x25/af_x25.c 2009-12-03 20:04:56.000000000 +0100
+@@ -519,7 +519,10 @@ static int x25_create(struct net *net, s
+
+ x25 = x25_sk(sk);
+
+- sock_init_data(sock, sk);
++ sk->sk_socket = sock;
++ sk->sk_type = sock->type;
++ sk->sk_sleep = &sock->wait;
++ sock->sk = sk;
+
+ x25_init_timers(sk);
+
+diff -NurpP --minimal linux-2.6.32.1/scripts/checksyscalls.sh linux-2.6.32.1-vs2.3.0.36.27/scripts/checksyscalls.sh
+--- linux-2.6.32.1/scripts/checksyscalls.sh 2009-09-10 15:26:31.000000000 +0200
++++ linux-2.6.32.1-vs2.3.0.36.27/scripts/checksyscalls.sh 2009-12-03 20:04:56.000000000 +0100
+@@ -194,7 +194,6 @@ cat << EOF
+ #define __IGNORE_afs_syscall
+ #define __IGNORE_getpmsg
+ #define __IGNORE_putpmsg
+-#define __IGNORE_vserver
+ EOF
+ }
+
+diff -NurpP --minimal linux-2.6.32.1/security/commoncap.c linux-2.6.32.1-vs2.3.0.36.27/security/commoncap.c
+--- linux-2.6.32.1/security/commoncap.c 2009-12-03 20:03:02.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/security/commoncap.c 2009-12-03 20:04:56.000000000 +0100
+@@ -27,6 +27,7 @@
+ #include <linux/sched.h>
+ #include <linux/prctl.h>
+ #include <linux/securebits.h>
++#include <linux/vs_context.h>
+
+ /*
+ * If a non-root user executes a setuid-root binary in
+@@ -52,7 +53,7 @@ static void warn_setuid_and_fcaps_mixed(
+
+ int cap_netlink_send(struct sock *sk, struct sk_buff *skb)
+ {
+- NETLINK_CB(skb).eff_cap = current_cap();
++ NETLINK_CB(skb).eff_cap = vx_mbcaps(current_cap());
+ return 0;
+ }
+
+@@ -62,6 +63,7 @@ int cap_netlink_recv(struct sk_buff *skb
+ return -EPERM;
+ return 0;
+ }
++
+ EXPORT_SYMBOL(cap_netlink_recv);
+
+ /**
+@@ -82,7 +84,22 @@ EXPORT_SYMBOL(cap_netlink_recv);
+ int cap_capable(struct task_struct *tsk, const struct cred *cred, int cap,
+ int audit)
+ {
+- return cap_raised(cred->cap_effective, cap) ? 0 : -EPERM;
++ struct vx_info *vxi = tsk->vx_info;
++
++#if 0
++ printk("cap_capable() VXF_STATE_SETUP = %llx, raised = %x, eff = %08x:%08x\n",
++ vx_info_flags(vxi, VXF_STATE_SETUP, 0),
++ cap_raised(tsk->cap_effective, cap),
++ tsk->cap_effective.cap[1], tsk->cap_effective.cap[0]);
++#endif
++
++ /* special case SETUP */
++ if (vx_info_flags(vxi, VXF_STATE_SETUP, 0) &&
++ /* FIXME: maybe use cred instead? */
++ cap_raised(tsk->cred->cap_effective, cap))
++ return 0;
++
++ return vx_cap_raised(vxi, cred->cap_effective, cap) ? 0 : -EPERM;
+ }
+
+ /**
+@@ -618,7 +635,7 @@ int cap_inode_setxattr(struct dentry *de
+
+ if (!strncmp(name, XATTR_SECURITY_PREFIX,
+ sizeof(XATTR_SECURITY_PREFIX) - 1) &&
+- !capable(CAP_SYS_ADMIN))
++ !vx_capable(CAP_SYS_ADMIN, VXC_FS_SECURITY))
+ return -EPERM;
+ return 0;
+ }
+@@ -962,7 +979,8 @@ error:
+ */
+ int cap_syslog(int type)
+ {
+- if ((type != 3 && type != 10) && !capable(CAP_SYS_ADMIN))
++ if ((type != 3 && type != 10) &&
++ !vx_capable(CAP_SYS_ADMIN, VXC_SYSLOG))
+ return -EPERM;
+ return 0;
+ }
+@@ -1014,3 +1032,4 @@ int cap_file_mmap(struct file *file, uns
+ }
+ return ret;
+ }
++
+diff -NurpP --minimal linux-2.6.32.1/security/selinux/hooks.c linux-2.6.32.1-vs2.3.0.36.27/security/selinux/hooks.c
+--- linux-2.6.32.1/security/selinux/hooks.c 2009-12-03 20:03:02.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/security/selinux/hooks.c 2009-12-03 20:04:56.000000000 +0100
+@@ -64,7 +64,6 @@
+ #include <linux/dccp.h>
+ #include <linux/quota.h>
+ #include <linux/un.h> /* for Unix socket types */
+-#include <net/af_unix.h> /* for Unix socket types */
+ #include <linux/parser.h>
+ #include <linux/nfs_mount.h>
+ #include <net/ipv6.h>
+diff -NurpP --minimal linux-2.6.32.1/security/selinux/include/av_permissions.h linux-2.6.32.1-vs2.3.0.36.27/security/selinux/include/av_permissions.h
+--- linux-2.6.32.1/security/selinux/include/av_permissions.h 2009-12-03 20:03:02.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/security/selinux/include/av_permissions.h 2009-12-03 20:04:56.000000000 +0100
+@@ -565,6 +565,7 @@
+ #define CAPABILITY__SETFCAP 0x80000000UL
+ #define CAPABILITY2__MAC_OVERRIDE 0x00000001UL
+ #define CAPABILITY2__MAC_ADMIN 0x00000002UL
++#define CAPABILITY2__CONTEXT 0x00000004UL
+ #define NETLINK_ROUTE_SOCKET__IOCTL 0x00000001UL
+ #define NETLINK_ROUTE_SOCKET__READ 0x00000002UL
+ #define NETLINK_ROUTE_SOCKET__WRITE 0x00000004UL
+diff -NurpP --minimal linux-2.6.32.1/security/selinux/include/av_perm_to_string.h linux-2.6.32.1-vs2.3.0.36.27/security/selinux/include/av_perm_to_string.h
+--- linux-2.6.32.1/security/selinux/include/av_perm_to_string.h 2009-12-03 20:03:02.000000000 +0100
++++ linux-2.6.32.1-vs2.3.0.36.27/security/selinux/include/av_perm_to_string.h 2009-12-03 20:04:56.000000000 +0100
+@@ -142,6 +142,7 @@
+ S_(SECCLASS_CAPABILITY, CAPABILITY__SETFCAP, "setfcap")
+ S_(SECCLASS_CAPABILITY2, CAPABILITY2__MAC_OVERRIDE, "mac_override")
+ S_(SECCLASS_CAPABILITY2, CAPABILITY2__MAC_ADMIN, "mac_admin")
++ S_(SECCLASS_CAPABILITY2, CAPABILITY2__CONTEXT, "context")
+ S_(SECCLASS_NETLINK_ROUTE_SOCKET, NETLINK_ROUTE_SOCKET__NLMSG_READ, "nlmsg_read")
+ S_(SECCLASS_NETLINK_ROUTE_SOCKET, NETLINK_ROUTE_SOCKET__NLMSG_WRITE, "nlmsg_write")
+ S_(SECCLASS_NETLINK_FIREWALL_SOCKET, NETLINK_FIREWALL_SOCKET__NLMSG_READ, "nlmsg_read")
Added: dists/trunk/linux-2.6/debian/patches/series/3-extra
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ dists/trunk/linux-2.6/debian/patches/series/3-extra Thu Dec 24 04:27:48 2009 (r14807)
@@ -0,0 +1 @@
++ features/all/vserver/vs2.3.0.36.27.patch featureset=vserver
Modified: dists/trunk/linux-2.6/debian/patches/series/base-extra
==============================================================================
--- dists/trunk/linux-2.6/debian/patches/series/base-extra Wed Dec 23 22:28:45 2009 (r14806)
+++ dists/trunk/linux-2.6/debian/patches/series/base-extra Thu Dec 24 04:27:48 2009 (r14807)
@@ -1,4 +1,4 @@
#+ features/all/openvz/openvz.patch featureset=openvz
#+ features/all/vserver/vs2.3.0.35.patch featureset=vserver
-+ features/all/vserver/bindmount-dev.patch featureset=vserver
+#+ features/all/vserver/bindmount-dev.patch featureset=vserver
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