[git pull] device-mapper updates for 3.10

[Alasdair G Kergon]

Please pull from:

  git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm tags/dm-3.10-changes

to get the following device-mapper updates for 3.10.

Thanks,
Alasdair

----------------------------------------------------------------
Allow devices that hold metadata for the device-mapper thin
provisioning target to be extended easily; allow WRITE SAME on
multipath devices; an assortment of little fixes and clean-ups.

----------------------------------------------------------------
Alasdair G Kergon (3):
      dm: document iterate_devices
      dm cache policy: fix description of lookup fn
      dm cache: move config fns

Joe Thornber (12):
      dm cache: tune migration throttling
      dm persistent data: fix error message typos
      dm cache: fix typos in comments
      dm cache: replace memcpy with struct assignment
      dm thin: refactor data dev resize
      dm thin: open dev read only when possible
      dm persistent data: support space map resizing
      dm thin: detect metadata device resizing
      dm persistent data: add threshold callback to space map
      dm persistent metadata: add space map threshold callback
      dm thin: generate event when metadata threshold passed
      dm cache: set config value

Mike Snitzer (3):
      dm stripe: fix regression in stripe_width calculation
      dm table: fix write same support
      dm mpath: enable WRITE SAME support

Mikulas Patocka (1):
      dm bufio: avoid a possible __vmalloc deadlock

Wei Yongjun (2):
      dm cache: fix error return code in cache_create
      dm snapshot: fix error return code in snapshot_ctr

 drivers/md/dm-bufio.c                              |   24 ++-
 drivers/md/dm-cache-metadata.c                     |    4 +-
 drivers/md/dm-cache-policy.h                       |    4 +-
 drivers/md/dm-cache-target.c                       |  100 +++++-----
 drivers/md/dm-mpath.c                              |    1 +
 drivers/md/dm-snap.c                               |    1 +
 drivers/md/dm-stripe.c                             |   11 +-
 drivers/md/dm-table.c                              |    2 +-
 drivers/md/dm-thin-metadata.c                      |   36 +++-
 drivers/md/dm-thin-metadata.h                      |    7 +
 drivers/md/dm-thin.c                               |  200 ++++++++++++++++----
 drivers/md/persistent-data/dm-space-map-disk.c     |    3 +-
 drivers/md/persistent-data/dm-space-map-metadata.c |  127 +++++++++++--
 drivers/md/persistent-data/dm-space-map.h          |   23 +++
 include/linux/device-mapper.h                      |   15 ++
 15 files changed, 442 insertions(+), 116 deletions(-)

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