Mike Snitzer bccab6a01a dm cache: switch the "default" cache replacement policy from mq to smq ... The Stochastic multiqueue (SMQ) policy (vs MQ) offers the promise of less memory utilization, improved performance and increased adaptability in the face of changing workloads. SMQ also does not have any cumbersome tuning knobs. Users may switch from "mq" to "smq" simply by appropriately reloading a DM table that is using the cache target. Doing so will cause all of the mq policy's hints to be dropped. Also, performance of the cache may degrade slightly until smq recalculates the origin device's hotspots that should be cached. In the future the "mq" policy will just silently make use of "smq" and the mq code will be removed. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Acked-by: Joe Thornber <ejt@redhat.com>		2015-06-17 12:40:38 -04:00
..
bcache	block: remove management of bi_remaining when restoring original bi_end_io	2015-05-22 08:58:55 -06:00
persistent-data	dm space map metadata: fix occasional leak of a metadata block on resize	2015-06-17 10:09:23 -04:00
bitmap.c	md/bitmap: remove rcu annotation from pointer arithmetic.	2015-05-21 09:14:41 +10:00
bitmap.h	md-cluster: re-add capabilities	2015-04-22 07:59:39 +10:00
dm-bio-prison.c	dm bio prison: add dm_cell_promote_or_release()	2015-05-29 14:19:06 -04:00
dm-bio-prison.h	dm bio prison: add dm_cell_promote_or_release()	2015-05-29 14:19:06 -04:00
dm-bio-record.h	dm: Refactor for new bio cloning/splitting	2013-11-23 22:33:55 -08:00
dm-bufio.c	dm bufio: fix time comparison to use time_after_eq()	2015-02-09 13:06:48 -05:00
dm-bufio.h	dm snapshot: use dm-bufio prefetch	2014-01-14 23:23:03 -05:00
dm-builtin.c	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
dm-cache-block-types.h	dm cache: revert "remove remainder of distinct discard block size"	2014-11-10 15:25:30 -05:00
dm-cache-metadata.c	dm cache: add fail io mode and needs_check flag	2015-06-11 17:13:00 -04:00
dm-cache-metadata.h	dm cache: add fail io mode and needs_check flag	2015-06-11 17:13:00 -04:00
dm-cache-policy-cleaner.c	dm cache: pass a new 'critical' flag to the policies when requesting writeback work	2015-05-29 14:19:04 -04:00
dm-cache-policy-internal.h	dm cache: age and write back cache entries even without active IO	2015-06-11 17:13:01 -04:00
dm-cache-policy-mq.c	dm cache: switch the "default" cache replacement policy from mq to smq	2015-06-17 12:40:38 -04:00
dm-cache-policy-smq.c	dm cache: switch the "default" cache replacement policy from mq to smq	2015-06-17 12:40:38 -04:00
dm-cache-policy.c	dm cache: add policy name to status output	2014-01-16 13:44:11 -05:00
dm-cache-policy.h	dm cache: age and write back cache entries even without active IO	2015-06-11 17:13:01 -04:00
dm-cache-target.c	dm cache: age and write back cache entries even without active IO	2015-06-11 17:13:01 -04:00
dm-crypt.c	dm crypt: add comments to better describe crypto processing logic	2015-05-29 14:19:02 -04:00
dm-delay.c	dm delay: use msecs_to_jiffies for time conversion	2015-04-15 12:10:21 -04:00
dm-era-target.c	dm era: check for a non-NULL metadata object before closing it	2014-06-03 13:44:08 -04:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	block: Abstract out bvec iterator	2013-11-23 22:33:47 -08:00
dm-io.c	dm io: deal with wandering queue limits when handling REQ_DISCARD and REQ_WRITE_SAME	2015-02-27 14:53:32 -05:00
dm-ioctl.c	dm: only initialize the request_queue once	2015-04-30 10:25:21 -04:00
dm-kcopyd.c
dm-linear.c	block: Abstract out bvec iterator	2013-11-23 22:33:47 -08:00
dm-log-userspace-base.c	dm log userspace base: fix compile warning	2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.c	dm log userspace transfer: match wait_for_completion_timeout return type	2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.h
dm-log-writes.c	dm log writes: use ULL suffix for 64-bit constants	2015-05-29 14:19:01 -04:00
dm-log.c
dm-mpath.c	dm mpath: fix leak of dm_mpath_io structure in blk-mq .queue_rq error path	2015-05-27 17:37:22 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c	dm raid1: keep issuing IO after leg failure	2015-05-29 14:19:02 -04:00
dm-raid.c	dm raid: add support for the MD RAID0 personality	2015-05-29 14:19:00 -04:00
dm-region-hash.c	block: Abstract out bvec iterator	2013-11-23 22:33:47 -08:00
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm snapshot: remove unnecessary NULL checks before vfree() calls	2015-02-09 13:06:49 -05:00
dm-snap-transient.c
dm-snap.c	block: remove management of bi_remaining when restoring original bi_end_io	2015-05-22 08:58:55 -06:00
dm-stats.c	dm stats: Use kvfree() in dm_kvfree()	2015-06-11 17:13:02 -04:00
dm-stats.h
dm-stripe.c	dm stripe: drop useless exit point from dm_stripe_init()	2015-05-29 14:19:01 -04:00
dm-switch.c	dm switch: efficiently support repetitive patterns	2014-08-01 12:30:37 -04:00
dm-sysfs.c	dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr	2015-04-15 12:10:17 -04:00
dm-table.c	dm: do not allocate any mempools for blk-mq request-based DM	2015-05-29 14:18:57 -04:00
dm-target.c	dm: allocate requests in target when stacking on blk-mq devices	2015-02-09 13:06:47 -05:00
dm-thin-metadata.c	dm thin metadata: fix a race when entering fail mode	2015-06-11 17:13:06 -04:00
dm-thin-metadata.h	dm thin metadata: add dm_thin_remove_range()	2015-06-11 17:13:04 -04:00
dm-thin.c	dm thin: fail messages with EOPNOTSUPP when pool cannot handle messages	2015-06-11 17:13:05 -04:00
dm-uevent.c
dm-uevent.h
dm-verity.c	block: remove management of bi_remaining when restoring original bi_end_io	2015-05-22 08:58:55 -06:00
dm-zero.c	dm crypt, dm zero: update author name following legal name change	2014-07-10 16:44:14 -04:00
dm.c	dm: factor out a common cleanup_mapped_device()	2015-05-29 14:18:58 -04:00
dm.h	block, dm: don't copy bios for request clones	2015-05-22 08:58:57 -06:00
faulty.c	md: rename ->stop to ->free	2015-02-04 08:35:52 +11:00
Kconfig	dm cache: add stochastic-multi-queue (smq) policy	2015-06-11 17:12:59 -04:00
linear.c	md: rename ->stop to ->free	2015-02-04 08:35:52 +11:00
linear.h
Makefile	dm cache: add stochastic-multi-queue (smq) policy	2015-06-11 17:12:59 -04:00
md-cluster.c	md-cluster: re-add capabilities	2015-04-22 07:59:39 +10:00
md-cluster.h	md-cluster: re-add capabilities	2015-04-22 07:59:39 +10:00
md.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2015-05-08 19:49:35 -07:00
md.h	md: remove 'go_faster' option from ->sync_request()	2015-04-22 08:00:40 +10:00
multipath.c	md: rename ->stop to ->free	2015-02-04 08:35:52 +11:00
multipath.h
raid0.c	md/raid0: fix restore to sector variable in raid0_make_request	2015-05-21 09:14:25 +10:00
raid0.h
raid1.c	md: remove 'go_faster' option from ->sync_request()	2015-04-22 08:00:40 +10:00
raid1.h	md: make ->congested robust against personality changes.	2015-02-04 08:35:52 +11:00
raid5.c	raid5: fix broken async operation chain	2015-05-21 09:14:20 +10:00
raid5.h	md/raid5: allow the stripe_cache to grow and shrink.	2015-04-22 08:00:43 +10:00
raid10.c	md: remove 'go_faster' option from ->sync_request()	2015-04-22 08:00:40 +10:00
raid10.h	md: make ->congested robust against personality changes.	2015-02-04 08:35:52 +11:00