Joe Thornber 7a7e97ca58 dm thin: performance improvement to discard processing ...

When processing a discard bio, if the block is already quiesced do the
discard immediately rather than adding the mapping to a list for the
next iteration of the worker thread.

Discarding a fully provisioned 100G thin volume with 64k block size goes
from 860s to 95s with this change.

Clearly there's something wrong with the worker architecture, more
investigation needed.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

2014-11-10 15:25:27 -05:00

..

bcache

bcache: Drop unneeded blk_sync_queue() calls

2014-08-04 15:23:04 -07:00

persistent-data

dm transaction manager: add support for prefetching blocks of metadata

2014-11-10 15:25:26 -05:00

bitmap.c

md/bitmap: remove confusing code from filemap_get_page.

2014-05-29 16:59:47 +10:00

bitmap.h

kernfs: s/sysfs_dirent/kernfs_node/ and rename its friends accordingly

2013-12-11 15:28:36 -08:00

dm-bio-prison.c

dm bio prison: switch to using a red black tree

2014-11-10 15:25:26 -05:00

dm-bio-prison.h

dm bio prison: switch to using a red black tree

2014-11-10 15:25:26 -05:00

dm-bio-record.h

dm: Refactor for new bio cloning/splitting

2013-11-23 22:33:55 -08:00

dm-bufio.c

dm bufio: evict buffers that are past the max age but retain some buffers

2014-11-10 15:25:26 -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: remove remainder of distinct discard block size

2014-03-27 16:56:23 -04:00

dm-cache-metadata.c

dm cache metadata: use dm-space-map-metadata.h defined size limits

2014-08-01 12:30:33 -04:00

dm-cache-metadata.h

dm cache metadata: use dm-space-map-metadata.h defined size limits

2014-08-01 12:30:33 -04:00

dm-cache-policy-cleaner.c

dm cache: policy change version from string to integer set

2013-03-20 17:21:27 +00:00

dm-cache-policy-internal.h

dm cache: add remove_cblock method to policy interface

2013-11-11 11:37:50 -05:00

dm-cache-policy-mq.c

dm cache mq: fix memory allocation failure for large cache devices

2014-02-28 12:18:29 -05:00

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: add policy name to status output

2014-01-16 13:44:11 -05:00

dm-cache-target.c

dm bio prison: switch to using a red black tree

2014-11-10 15:25:26 -05:00

dm-crypt.c

dm crypt: fix access beyond the end of allocated space

2014-08-28 14:24:09 -04:00

dm-delay.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

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: simplify dec_count and sync_io

2014-08-01 12:30:30 -04:00

dm-ioctl.c

dm: allow active and inactive tables to share dm_devs

2014-10-05 20:03:35 -04:00

dm-kcopyd.c

dm: stop using WQ_NON_REENTRANT

2013-08-23 09:02:13 -04:00

dm-linear.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

dm-log-userspace-base.c

dm log userspace: allow mark requests to piggyback on flush requests

2014-01-21 23:46:27 -05:00

dm-log-userspace-transfer.c

dm log userspace: fix memory leak in dm_ulog_tfr_init failure path

2014-10-05 20:03:38 -04:00

dm-log-userspace-transfer.h

…

dm-log.c

…

dm-mpath.c

dm mpath: stop queueing IO when no valid paths exist

2014-10-05 20:03:35 -04:00

dm-mpath.h

…

dm-path-selector.c

…

dm-path-selector.h

…

dm-queue-length.c

…

dm-raid1.c

dm raid1: fix immutable biovec related BUG when retrying read bio

2014-02-18 10:48:57 -05:00

dm-raid.c

dm raid: fix inaccessible superblocks causing oops in configure_discard_support

2014-10-29 14:53:27 -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: fix metadata corruption

2014-03-03 17:58:13 -05:00

dm-snap-transient.c

…

dm-snap.c

sched: Remove proliferation of wait_on_bit() action functions

2014-07-16 15:10:39 +02:00

dm-stats.c

dm stats: initialize read-only module parameter

2013-12-10 19:13:21 -05:00

dm-stats.h

dm: add statistics support

2013-09-05 20:46:06 -04:00

dm-stripe.c

dm stripe: fix potential for leak in stripe_ctr error path

2014-10-10 22:05:18 -04:00

dm-switch.c

dm switch: efficiently support repetitive patterns

2014-08-01 12:30:37 -04:00

dm-sysfs.c

dm sysfs: fix a module unload race

2014-01-14 23:23:04 -05:00

dm-table.c

dm: allow active and inactive tables to share dm_devs

2014-10-05 20:03:35 -04:00

dm-target.c

dm: allow error target to replace bio-based and request-based targets

2013-09-05 20:46:05 -04:00

dm-thin-metadata.c

dm thin: prefetch missing metadata pages

2014-11-10 15:25:27 -05:00

dm-thin-metadata.h

dm thin: prefetch missing metadata pages

2014-11-10 15:25:27 -05:00

dm-thin.c

dm thin: performance improvement to discard processing

2014-11-10 15:25:27 -05:00

dm-uevent.c

…

dm-uevent.h

…

dm-verity.c

dm verity: fix biovecs hash calculation regression

2014-04-15 12:19:24 -04:00

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: improve documentation and code clarity in dm_merge_bvec

2014-11-10 15:25:27 -05:00

dm.h

dm: allow active and inactive tables to share dm_devs

2014-10-05 20:03:35 -04:00

faulty.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

Kconfig

dm: add era target

2014-03-27 16:56:23 -04:00

linear.c

block: Introduce new bio_split()

2013-11-23 22:33:57 -08:00

linear.h

…

Makefile

dm: add era target

2014-03-27 16:56:23 -04:00

md.c

md: don't allow bitmap file to be added to raid0/linear.

2014-08-08 15:43:20 +10:00

md.h

md/bitmap: don't abuse i_writecount for bitmap files.

2014-04-09 12:26:59 +10:00

multipath.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

multipath.h

…

raid0.c

md/raid0: check for bitmap compatability when changing raid levels.

2014-08-08 15:33:17 +10:00

raid0.h

…

raid1.c

md/raid1,raid10: always abort recover on write error.

2014-07-31 10:16:52 +10:00

raid1.h

raid1: Rewrite the implementation of iobarrier.

2013-11-19 15:19:18 +11:00

raid5.c

md/raid6: avoid data corruption during recovery of double-degraded RAID6

2014-08-18 14:49:46 +10:00

raid5.h

raid5: add an option to avoid copy data from bio to stripe cache

2014-05-29 16:59:47 +10:00

raid10.c

md/raid10: always initialise ->state on newly allocated r10_bio

2014-08-19 17:20:27 +10:00

raid10.h

MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1)

2013-02-26 11:55:30 +11:00