[git pull] device-mapper patches for 2.6.40

[Alasdair G Kergon <agk@redhat.com>]

Please pull from:

  master.kernel.org:/pub/scm/linux/kernel/git/agk/linux-2.6-dm.git master

to get the following device-mapper patches for inclusion in 2.6.40. 
There are some minor fixes and a small patchset that reduces kcopyd memory
requirements.

Martin K. Petersen (1):
      dm mpath: do not fail paths after integrity errors

Mike Snitzer (1):
      dm table: allow targets to support discards internally

Mikulas Patocka (8):
      dm kcopyd: avoid pointless job splitting
      dm kcopyd: preallocate sub jobs to avoid deadlock
      dm kcopyd: remove superfluous page allocation spinlock
      dm kcopyd: add gfp parm to alloc_pl
      dm kcopyd: alloc pages from the main page allocator
      dm io: use fixed initial mempool size
      dm kcopyd: reserve fewer pages
      dm kcopyd: return client directly and not through a pointer

Milan Broz (1):
      dm table: reject devices without request fns

 drivers/md/dm-io.c              |   27 +-----
 drivers/md/dm-kcopyd.c          |  168 +++++++++++++++++++++++----------------
 drivers/md/dm-log.c             |    3 +-
 drivers/md/dm-mpath.c           |    2 +-
 drivers/md/dm-raid1.c           |   10 +-
 drivers/md/dm-snap-persistent.c |   13 +---
 drivers/md/dm-snap.c            |   10 +--
 drivers/md/dm-table.c           |   23 +++++-
 include/linux/device-mapper.h   |    6 ++
 include/linux/dm-io.h           |    3 +-
 include/linux/dm-kcopyd.h       |    3 +-
 11 files changed, 144 insertions(+), 124 deletions(-)

Thanks,
Alasdair.