Dan Williams: imsm: add support for checkpointing via 'curr_migr_unit'

[Martin F. Krafft]

Module: mdadm
Branch: upstream
Commit: 1e5c69836d4d0b6dcaef8fc187e6bf2841eb57f6
URL:    http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=commit;h=1e5c69836d4d0b6dcaef8fc187e6bf2841eb57f6

Author: Dan Williams <dan.j.williams at intel.com>
Date:   Mon Dec 21 17:54:32 2009 -0700

imsm: add support for checkpointing via 'curr_migr_unit'

Unlike native md checkpointing some data about the geometry and type of
the migration process is coded into curr_migr_unit.  Provide logic to
convert between md/{resync_start|recovery_start} and imsm/curr_migr_unit.

Signed-off-by: Dan Williams <dan.j.williams at intel.com>

---

 bitmap.c      |    2 -
 mdadm.h       |   17 +++
 super-intel.c |  320 +++++++++++++++++++++++++++++++++++++++++++++++++++------
 util.c        |   15 +++
 4 files changed, 320 insertions(+), 34 deletions(-)

Diff:   http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=commitdiff;h=1e5c69836d4d0b6dcaef8fc187e6bf2841eb57f6