Mike Snitzer 621739b00e Revert "dm: only run the queue on completion if congested or no requests pending" ...

This reverts commit 9a0e609e3f.
(Resolved a conflict during revert due to commit bfebd1cdb4 that came
after)

This revert is motivated by a couple failure reports on request-based DM
multipath testbeds:
1) Netapp reported that their multipath fault injection test under heavy
   IO load can stall longer than 300 seconds.
2) IBM reported elevated lock contention in their testbed (likely due to
   increased back pressure due to IO not being dispatched as quickly):
   https://www.redhat.com/archives/dm-devel/2015-July/msg00057.html

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 4.1+

2015-07-08 16:16:07 -04:00

..

bcache

MAINTAINERS: BCACHE: Kent Overstreet has changed email address

2015-06-30 19:45:01 -07:00

persistent-data

dm btree: silence lockdep lock inversion in dm_btree_del()

2015-07-06 10:45:02 -04:00

bitmap.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-07-04 19:36:06 -07:00

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 policy smq: fix "default" version to be 1.4.0

2015-06-26 10:14:28 -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: replace simple_strtoul

2012-07-27 15:07:59 +01:00

dm-exception-store.h

dm snapshot: test chunk size against both origin and snapshot

2010-08-12 04:13:51 +01:00

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: 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 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: userspace add luid to distinguish between concurrent log instances

2009-09-04 20:40:34 +01:00

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: use memweight()

2012-07-30 17:25:16 -07:00

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

md: Add module.h to all files using it implicitly

2011-10-31 19:31:18 -04:00

dm-path-selector.h

…

dm-queue-length.c

dm: reject trailing characters in sccanf input

2012-03-28 18:41:26 +01:00

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: reject trailing characters in sccanf input

2012-03-28 18:41:26 +01:00

dm-service-time.c

dm: reject trailing characters in sccanf input

2012-03-28 18:41:26 +01:00

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

md: Add in export.h for files using EXPORT_SYMBOL

2011-10-31 19:31:19 -04:00

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: add support for request-based DM devices

2015-06-17 12:40:41 -04:00

dm-stats.h

dm stats: support precise timestamps

2015-06-17 12:40:40 -04:00

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

Revert "block, dm: don't copy bios for request clones"

2015-06-26 10:11:58 -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: allocate the cell_sort_array dynamically

2015-07-05 21:59:37 -04:00

dm-uevent.c

md: Add in export.h for files using EXPORT_SYMBOL

2011-10-31 19:31:19 -04:00

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

Revert "dm: only run the queue on completion if congested or no requests pending"

2015-07-08 16:16:07 -04:00

dm.h

Merge tag 'dm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2015-06-26 12:35:01 -07:00

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

md/linear: typedef removal: linear_conf_t -> struct linear_conf

2011-10-11 16:48:54 +11:00

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.org/pub/scm/linux/kernel/git/viro/vfs

2015-07-04 19:36:06 -07:00

md.h

writeback: separate out include/linux/backing-dev-defs.h

2015-06-02 08:33:34 -06:00

multipath.c

md: rename ->stop to ->free

2015-02-04 08:35:52 +11:00

multipath.h

md/multipath: typedef removal: multipath_conf_t -> struct mpconf

2011-10-11 16:48:57 +11:00

raid0.c

md/raid0: fix restore to sector variable in raid0_make_request

2015-05-21 09:14:25 +10:00

raid0.h

md: add proper merge_bvec handling to RAID0 and Linear.

2012-03-19 12:46:39 +11:00

raid1.c

writeback: move backing_dev_info->state into bdi_writeback

2015-06-02 08:33:34 -06:00

raid1.h

md: make ->congested robust against personality changes.

2015-02-04 08:35:52 +11:00

raid5.c

md/raid5: ignore released_stripes check

2015-06-17 10:00:33 +10:00

raid5.h

md/raid5: per hash value and exclusive wait_for_stripe

2015-06-17 10:00:27 +10:00

raid10.c

Merge tag 'md/4.2' of git://neil.brown.name/md

2015-06-29 11:10:56 -07:00

raid10.h

md: make ->congested robust against personality changes.

2015-02-04 08:35:52 +11:00