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Subject[git pull] additional device mapper changes for 3.20
Hi Linus,

The following changes since commit 802ea9d8645d33d24b7b4cd4537c14f3e698bde0:

Merge tag 'dm-3.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm (2015-02-12 16:36:31 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/dm-3.20-changes-2

for you to fetch changes up to 22aa66a3ee5b61e0f4a0bfeabcaa567861109ec3:

dm snapshot: fix a possible invalid memory access on unload (2015-02-18 09:41:54 -0500)

----------------------------------------------------------------
- Significant dm-crypt CPU scalability performance improvements thanks
to changes that enable effective use of an unbound workqueue across
all available CPUs. A large battery of tests were performed to
validate these changes, summary of results is available here:
https://www.redhat.com/archives/dm-devel/2015-February/msg00106.html

- A few additional stable fixes (to DM core, dm-snapshot and dm-mirror)
and a small fix to the dm-space-map-disk.

----------------------------------------------------------------
Darrick J. Wong (1):
dm io: reject unsupported DISCARD requests with EOPNOTSUPP

Mike Snitzer (1):
dm space map disk: fix sm_disk_count_is_more_than_one()

Mikulas Patocka (10):
dm mirror: do not degrade the mirror on discard error
dm crypt: use unbound workqueue for request processing
dm crypt: don't allocate pages for a partial request
dm crypt: avoid deadlock in mempools
dm crypt: remove unused io_pool and _crypt_io_pool
dm crypt: offload writes to thread
dm crypt: add 'submit_from_crypt_cpus' option
dm crypt: sort writes
dm: fix a race condition in dm_get_md
dm snapshot: fix a possible invalid memory access on unload

Documentation/device-mapper/dm-crypt.txt | 15 +-
drivers/md/dm-crypt.c | 392 ++++++++++++++-----------
drivers/md/dm-io.c | 6 +
drivers/md/dm-raid1.c | 9 +
drivers/md/dm-snap.c | 4 +-
drivers/md/dm.c | 27 +-
drivers/md/persistent-data/dm-space-map-disk.c | 4 +-
7 files changed, 269 insertions(+), 188 deletions(-)


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