Hi Linus,
I've built the DM changes for 4.2 ontop of the block tree (hence the
jens/for-4.2/core merge).
The following changes since commit 183f7802e73e26206558864d1b67e64382257277:
Merge remote-tracking branch 'jens/for-4.2/core' into dm-4.2 (2015-05-29 14:17:16 -0400)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm tags/dm-4.2-changes
for you to fetch changes up to e262f34741522e0d821642e5449c6eeb512723fc:
dm stats: add support for request-based DM devices (2015-06-17 12:40:41 -0400)
Please pull, thanks.
Mike
----------------------------------------------------------------
- DM core cleanups
- blk-mq request-based DM no longer uses any mempools now that partial
completions are no longer handled as part of cloned requests
- DM raid cleanups and support for MD raid0
- DM cache core advances and a new stochastic-multi-queue (smq) cache
replacement policy
- smq is the new default dm-cache policy
- DM thinp cleanups and much more efficient large discard support
- DM statistics support for request-based DM and nanosecond resolution
timestamps
- Fixes to DM stripe, DM log-writes, DM raid1 and DM crypt
----------------------------------------------------------------
Geert Uytterhoeven (1):
dm log writes: use ULL suffix for 64-bit constants
Heinz Mauelshagen (3):
dm raid: fixup documentation for discard support
dm raid: a few cleanups
dm raid: add support for the MD RAID0 personality
Joe Thornber (18):
dm cache: fix race when issuing a POLICY_REPLACE operation
dm cache: add io_tracker
dm cache: track IO to the origin device using io_tracker
dm cache: pass a new 'critical' flag to the policies when requesting writeback work
dm cache: pull out some bitset utility functions for reuse
dm bio prison: add dm_cell_promote_or_release()
dm cache: defer whole cells
dm cache: boost promotion of blocks that will be overwritten
dm cache: add stochastic-multi-queue (smq) policy
dm cache: wake the worker thread every time we free a migration object
dm cache: add fail io mode and needs_check flag
dm cache: age and write back cache entries even without active IO
dm btree: add dm_btree_remove_leaves()
dm thin metadata: add dm_thin_find_mapped_range()
dm thin metadata: add dm_thin_remove_range()
dm thin: range discard support
dm thin metadata: fix a race when entering fail mode
dm space map metadata: fix occasional leak of a metadata block on resize
Lidong Zhong (1):
dm raid1: keep issuing IO after leg failure
Luis Henriques (1):
dm stripe: drop useless exit point from dm_stripe_init()
Mike Snitzer (9):
dm: do not allocate any mempools for blk-mq request-based DM
dm: cleanup methods that requeue requests
dm: factor out a common cleanup_mapped_device()
dm thin: cleanup overwrite's endio restore to be centralized
dm thin: cleanup schedule_zero() to read more logically
dm thin metadata: remove in-core 'read_only' flag
dm cache: prefix all DMERR and DMINFO messages with cache device name
dm thin: fail messages with EOPNOTSUPP when pool cannot handle messages
dm cache: switch the "default" cache replacement policy from mq to smq
Mikulas Patocka (4):
dm stats: fix divide by zero if 'number_of_areas' arg is zero
dm stats: support precise timestamps
dm stats: collect and report histogram of IO latencies
dm stats: add support for request-based DM devices
Milan Broz (1):
dm crypt: add comments to better describe crypto processing logic
Pekka Enberg (1):
dm stats: Use kvfree() in dm_kvfree()
Documentation/device-mapper/cache-policies.txt | 67 +-
Documentation/device-mapper/cache.txt | 9 +-
Documentation/device-mapper/dm-raid.txt | 2 +
Documentation/device-mapper/statistics.txt | 41 +-
drivers/md/Kconfig | 12 +
drivers/md/Makefile | 2 +
drivers/md/dm-bio-prison.c | 26 +
drivers/md/dm-bio-prison.h | 13 +
drivers/md/dm-cache-metadata.c | 133 +-
drivers/md/dm-cache-metadata.h | 10 +
drivers/md/dm-cache-policy-cleaner.c | 6 +-
drivers/md/dm-cache-policy-internal.h | 52 +-
drivers/md/dm-cache-policy-mq.c | 93 +-
drivers/md/dm-cache-policy-smq.c | 1791 ++++++++++++++++++++
drivers/md/dm-cache-policy.h | 30 +-
drivers/md/dm-cache-target.c | 832 +++++++--
drivers/md/dm-crypt.c | 30 +-
drivers/md/dm-log-writes.c | 4 +-
drivers/md/dm-raid.c | 225 +--
drivers/md/dm-raid1.c | 75 +-
drivers/md/dm-stats.c | 341 +++-
drivers/md/dm-stats.h | 4 +-
drivers/md/dm-stripe.c | 4 +-
drivers/md/dm-table.c | 4 +-
drivers/md/dm-thin-metadata.c | 124 +-
drivers/md/dm-thin-metadata.h | 11 +
drivers/md/dm-thin.c | 612 +++++--
drivers/md/dm.c | 190 ++-
drivers/md/persistent-data/dm-block-manager.c | 6 +
drivers/md/persistent-data/dm-block-manager.h | 1 +
drivers/md/persistent-data/dm-btree-remove.c | 127 ++
drivers/md/persistent-data/dm-btree.h | 9 +
drivers/md/persistent-data/dm-space-map-metadata.c | 50 +-
33 files changed, 4213 insertions(+), 723 deletions(-)
create mode 100644 drivers/md/dm-cache-policy-smq.c
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