[kernel] r19803 - in dists/sid/linux/debian: . patches patches/bugfix/all
Ben Hutchings
benh at alioth.debian.org
Thu Feb 14 04:41:11 UTC 2013
Author: benh
Date: Thu Feb 14 04:41:09 2013
New Revision: 19803
Log:
mm: Try harder to allocate vmemmap blocks (Closes: #699913)
Added:
dists/sid/linux/debian/patches/bugfix/all/mm-Try-harder-to-allocate-vmemmap-blocks.patch
Modified:
dists/sid/linux/debian/changelog
dists/sid/linux/debian/patches/series
Modified: dists/sid/linux/debian/changelog
==============================================================================
--- dists/sid/linux/debian/changelog Thu Feb 14 04:26:38 2013 (r19802)
+++ dists/sid/linux/debian/changelog Thu Feb 14 04:41:09 2013 (r19803)
@@ -131,6 +131,7 @@
* [x86] sound: Enable LINE6_USB as module (Closes: #700211)
- Apply upstream changes up to Linux 3.8-rc1
* [armhf/mx5] Update description to mention i.MX53
+ * mm: Try harder to allocate vmemmap blocks (Closes: #699913)
[ Aurelien Jarno ]
* [armhf/vexpress] Add kernel udebs.
Added: dists/sid/linux/debian/patches/bugfix/all/mm-Try-harder-to-allocate-vmemmap-blocks.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ dists/sid/linux/debian/patches/bugfix/all/mm-Try-harder-to-allocate-vmemmap-blocks.patch Thu Feb 14 04:41:09 2013 (r19803)
@@ -0,0 +1,36 @@
+From: Ben Hutchings <ben at decadent.org.uk>
+Date: Mon, 11 Feb 2013 00:56:24 +0000
+Subject: mm: Try harder to allocate vmemmap blocks
+Bug-Debian: http://bugs.debian.org/699913
+
+Hot-adding memory on x86_64 normally requires huge page allocation.
+When this is done to a VM guest, it's usually because the system is
+already tight on memory, so the request tends to fail. Try to avoid
+this by adding __GFP_REPEAT to the allocation flags.
+
+Reported-and-tested-by: Bernhard Schmidt <Bernhard.Schmidt at lrz.de>
+Signed-off-by: Ben Hutchings <ben at decadent.org.uk>
+---
+ mm/sparse-vmemmap.c | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
+index 1b7e22a..22b7e18 100644
+--- a/mm/sparse-vmemmap.c
++++ b/mm/sparse-vmemmap.c
+@@ -53,10 +53,12 @@ void * __meminit vmemmap_alloc_block(unsigned long size, int node)
+ struct page *page;
+
+ if (node_state(node, N_HIGH_MEMORY))
+- page = alloc_pages_node(node,
+- GFP_KERNEL | __GFP_ZERO, get_order(size));
++ page = alloc_pages_node(
++ node, GFP_KERNEL | __GFP_ZERO | __GFP_REPEAT,
++ get_order(size));
+ else
+- page = alloc_pages(GFP_KERNEL | __GFP_ZERO,
++ page = alloc_pages(
++ GFP_KERNEL | __GFP_ZERO | __GFP_REPEAT,
+ get_order(size));
+ if (page)
+ return page_address(page);
Modified: dists/sid/linux/debian/patches/series
==============================================================================
--- dists/sid/linux/debian/patches/series Thu Feb 14 04:26:38 2013 (r19802)
+++ dists/sid/linux/debian/patches/series Thu Feb 14 04:41:09 2013 (r19803)
@@ -625,3 +625,4 @@
features/all/line6/0104-staging-line6-drop-dump-requests-from-variax-startup.patch
features/all/line6/0105-staging-line6-drop-dump-requests-from-pod-startup.patch
features/all/line6/0106-staging-line6-drop-unused-dumprequest-code.patch
+bugfix/all/mm-Try-harder-to-allocate-vmemmap-blocks.patch
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