[git pull] device mapper fixes for 4.3-rc5

[git pull] device mapper fixes for 4.3-rc5

[Mike Snitzer]

Hi Linus,

The following changes since commit 9ffecb10283508260936b96022d4ee43a7798b4c:

  Linux 4.3-rc3 (2015-09-27 07:50:08 -0400)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm dm-4.3-fixes-2

for you to fetch changes up to b0d3cc011e532d8c9db76cf717bcafa53c135595:

  dm snapshot: add new persistent store option to support overflow (2015-10-09 16:57:03 -0400)

Please pull, thanks.
Mike

----------------------------------------------------------------
3 stable@ fixes:

- DM core AB-BA deadlock fix in the device destruction path (vs device
  creation's DM table swap).

- DM raid fix to properly round up the region_size to the next
  power-of-2.

- DM cache fix for a NULL pointer seen while switching from the
  "cleaner" cache policy.

2 fixes for regressions introduced during the 4.3 merge:

- request-based DM error propagation regressed due to incorrect
  changes introduced when adding the bi_error field to bio.

- DM snapshot fix to only support snapshots that overflow if the client
  (e.g. lvm2) is prepared to deal with the associated snapshot status
  interface change.

----------------------------------------------------------------
Joe Thornber (1):
      dm cache: fix NULL pointer when switching from cleaner policy

Junichi Nomura (2):
      dm: fix AB-BA deadlock in __dm_destroy()
      dm: fix request-based dm error reporting

Mike Snitzer (1):
      dm snapshot: add new persistent store option to support overflow

Mikulas Patocka (1):
      dm raid: fix round up of default region size

 Documentation/device-mapper/snapshot.txt | 10 +++++++---
 drivers/md/dm-cache-policy-cleaner.c     |  2 +-
 drivers/md/dm-exception-store.c          |  6 +++---
 drivers/md/dm-exception-store.h          |  5 +++--
 drivers/md/dm-raid.c                     |  3 +--
 drivers/md/dm-snap-persistent.c          | 17 ++++++++++++++---
 drivers/md/dm-snap-transient.c           |  3 +--
 drivers/md/dm-snap.c                     | 14 +++++++++-----
 drivers/md/dm.c                          | 11 +++++------
 9 files changed, 44 insertions(+), 27 deletions(-)