Shaohua Li 9ba52e5812 blk-mq: don't lose requests if a stopped queue restarts ... Normally if driver is busy to dispatch a request the logic is like below: block layer: driver: __blk_mq_run_hw_queue a. blk_mq_stop_hw_queue b. rq add to ctx->dispatch later: 1. blk_mq_start_hw_queue 2. __blk_mq_run_hw_queue But it's possible step 1-2 runs between a and b. And since rq isn't in ctx->dispatch yet, step 2 will not run rq. The rq might get lost if there are no subsequent requests kick in. Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2015-05-04 14:32:48 -06:00
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partitions	Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block	2015-02-12 14:13:23 -08:00
bio-integrity.c	block: fix regression where bio_integrity_process uses wrong bio_vec iterator	2014-12-02 08:15:21 -07:00
bio.c	block: rewrite and split __bio_copy_iov()	2015-02-05 09:30:44 -07:00
blk-cgroup.c	blkcg: remove blkcg->id	2014-09-08 09:55:37 -06:00
blk-cgroup.h	blkcg: remove blkcg->id	2014-09-08 09:55:37 -06:00
blk-core.c	block: destroy bdi before blockdev is unregistered.	2015-04-27 10:27:20 -06:00
blk-exec.c	blk-mq: avoid infinite recursion with the FUA flag	2014-09-22 11:55:19 -06:00
blk-flush.c	blk-mq: support per-distpatch_queue flush machinery	2014-09-25 15:22:45 -06:00
blk-integrity.c	block: Don't merge requests if integrity flags differ	2014-09-27 09:14:57 -06:00
blk-ioc.c	block: Substitute rcu_access_pointer() for rcu_dereference_raw()	2014-02-18 12:21:26 -08:00
blk-iopoll.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 12:57:53 -07:00
blk-lib.c	block: Quiesce zeroout wrapper	2015-02-05 10:14:54 -07:00
blk-map.c	blk_rq_map_user(): use import_single_range()	2015-04-11 22:27:13 -04:00
blk-merge.c	Fix bug in blk_rq_merge_ok	2015-03-20 08:50:41 -06:00
blk-mq-cpu.c	blk-mq: add file comments and update copyright notices	2014-05-28 10:15:41 -06:00
blk-mq-cpumap.c	blk-mq: Use all available hardware queues	2014-12-09 09:08:21 -07:00
blk-mq-sysfs.c	blk-mq: add blk_mq_init_allocated_queue and export blk_mq_register_disk	2015-03-13 08:26:53 -06:00
blk-mq-tag.c	blkmq: Fix NULL pointer deref when all reserved tags in	2015-03-18 17:06:18 -06:00
blk-mq-tag.h	blk-mq: add tag allocation policy	2015-01-23 14:18:00 -07:00
blk-mq.c	blk-mq: don't lose requests if a stopped queue restarts	2015-05-04 14:32:48 -06:00
blk-mq.h	blk-mq: release mq's kobjects in blk_release_queue()	2015-01-29 08:30:51 -08:00
blk-settings.c	block: fix blk_stack_limits() regression due to lcm() change	2015-03-31 09:45:50 -06:00
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	block: destroy bdi before blockdev is unregistered.	2015-04-27 10:27:20 -06:00
blk-tag.c	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
blk-throttle.c	blk-throttle: check stats_cpu before reading it from sysfs	2015-02-20 22:11:58 -08:00
blk-timeout.c	blk-mq: Allow requests to never expire	2015-01-08 08:59:01 -07:00
blk.h	blk-mq: support per-distpatch_queue flush machinery	2014-09-25 15:22:45 -06:00
bounce.c	block:bounce: fix call inc_|dec_zone_page_state on different pages confuse value of NR_BOUNCE	2015-04-27 09:24:07 -06:00
bsg-lib.c	bsg: Remove unused function bsg_goose_queue()	2012-12-06 14:33:02 +01:00
bsg.c	block: Simplify bsg complete all	2015-02-04 09:57:52 -07:00
cfq-iosched.c	cfq-iosched: handle failure of cfq group allocation	2015-02-09 10:22:39 -07:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	block, bdi: an active gendisk always has a request_queue associated with it	2014-09-08 10:00:35 -06:00
deadline-iosched.c	block: Stop abusing csd.list for fifo_time	2014-02-24 14:46:32 -08:00
elevator.c	elevator: fix double release of elevator module	2015-04-23 10:47:44 -06:00
genhd.c	genhd: check for int overflow in disk_expand_part_tbl()	2014-11-19 13:09:07 -07:00
ioctl.c	block: Add discard flag to blkdev_issue_zeroout() function	2015-01-21 10:41:46 -07:00
ioprio.c	block: Fix computation of merged request priority	2014-10-31 08:30:43 -06:00
Kconfig	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
Kconfig.iosched	blkcg: make CONFIG_BLK_CGROUP bool	2012-03-06 21:27:21 +01:00
Makefile	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
noop-iosched.c	elevator: Fix a race in elevator switching	2013-07-03 13:25:24 +02:00
partition-generic.c	block: Fix dev_t minor allocation lifetime	2014-09-03 15:01:02 -06:00
scsi_ioctl.c	sg_io(): use import_iovec()	2015-04-11 22:27:13 -04:00
t10-pi.c	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00