[dm-devel] [git pull] a few additional device mapper fixes for 3.19 final
Mike Snitzer
snitzer at redhat.com
Sun Jan 25 02:35:45 UTC 2015
Hi Linus,
The following changes since commit 5164bece1673cdf04782f8ed3fba70743700f5da:
dm: fix missed error code if .end_io isn't implemented by target_type (2014-12-17 12:31:13 -0500)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/dm-3.19-fixes-2
for you to fetch changes up to 96b26c8c64c7a30488b8b404f7a63346df4c3bff:
dm: fix handling of multiple internal suspends (2015-01-24 14:50:08 -0500)
Please pull, thanks.
Mike
----------------------------------------------------------------
2 stable fixes for dm-cache and 1 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.
----------------------------------------------------------------
Joe Thornber (2):
dm cache: share cache-metadata object across inactive and active DM tables
dm cache: fix problematic dual use of a single migration count variable
Mikulas Patocka (1):
dm: fix handling of multiple internal suspends
drivers/md/dm-cache-metadata.c | 101 ++++++++++++++++++++++++++++++++++++++---
drivers/md/dm-cache-target.c | 89 ++++++++++++++++++++----------------
drivers/md/dm.c | 9 +++-
3 files changed, 152 insertions(+), 47 deletions(-)
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