From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 26 Jan 2015 01:25:01 +0000 (-0800)
Subject: Merge tag 'dm-3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device... 
X-Git-Tag: v4.9.8~4954
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bfc835b5716fd86b568d4f9b15be04c4f361082b;p=platform%2Fkernel%2Flinux-rpi3.git

Merge tag 'dm-3.19-fixes-2' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "Two stable fixes for dm-cache and one 3.19 DM core fix:

   - fix potential for dm-cache metadata corruption via stale metadata
     buffers being used when switching an inactive cache table to
     active; this could occur due to each table having it's own bufio
     client rather than sharing the client between tables.

   - fix dm-cache target to properly account for discard IO while
     suspending otherwise IO quiescing could complete prematurely.

   - fix DM core's handling of multiple internal suspends by maintaining
     an 'internal_suspend_count' and only resuming the device when this
     count drops to zero"

* tag 'dm-3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: fix handling of multiple internal suspends
  dm cache: fix problematic dual use of a single migration count variable
  dm cache: share cache-metadata object across inactive and active DM tables
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bfc835b5716fd86b568d4f9b15be04c4f361082b