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linux/block
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Jens Axboe 38dbb7dd4d blk-cgroup: don't quiesce the queue on policy activate/deactivate 
There's no potential harm in quiescing the queue, but it also doesn't
buy us anything. And we can't run the queue async for policy
deactivate, since we could be in the path of tearing the queue down.
If we schedule an async run of the queue at that time, we're racing
with queue teardown AFTER having we've already torn most of it down.

Reported-by: Omar Sandoval <osandov@fb.com>
Fixes: 4d199c6f1c ("blk-cgroup: ensure that we clear the stop bit on quiesced queues")
Tested-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-18 15:37:27 -07:00
..
partitions partitions/efi: Fix integer overflow in GPT size calculation 2017-01-17 09:02:31 -07:00
badblocks.c badblocks: badblocks_set/clear update unacked_exist 2016-10-21 15:45:47 -06:00
bio-integrity.c block: remove bio_is_rw 2016-10-28 08:45:17 -06:00
bio.c block: improve handling of the magic discard payload 2016-12-09 08:30:51 -07:00
blk-cgroup.c blk-cgroup: don't quiesce the queue on policy activate/deactivate 2017-01-18 15:37:27 -07:00
blk-core.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-exec.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-flush.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-integrity.c block, libnvdimm, nvme: provide a built-in blk_integrity nop profile 2015-10-21 14:43:45 -06:00
blk-ioc.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-lib.c block: improve handling of the magic discard payload 2016-12-09 08:30:51 -07:00
blk-map.c Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
blk-merge.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-mq-cpumap.c blk-mq: export blk_mq_map_queues 2016-11-08 17:30:00 -05:00
blk-mq-pci.c blk_mq: linux/blk-mq.h does not include all the headers it depends on 2016-09-19 08:21:51 -06:00
blk-mq-sched.c blk-mq-sched: allow setting of default IO scheduler 2017-01-17 10:04:31 -07:00
blk-mq-sched.h blk-mq-sched: allow setting of default IO scheduler 2017-01-17 10:04:31 -07:00
blk-mq-sysfs.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-mq-tag.c blk-mq: split tag ->rqs[] into two 2017-01-17 10:04:15 -07:00
blk-mq-tag.h blk-mq: split tag ->rqs[] into two 2017-01-17 10:04:15 -07:00
blk-mq.c blk-mq-sched: allow setting of default IO scheduler 2017-01-17 10:04:31 -07:00
blk-mq.h blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-settings.c Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
blk-softirq.c This adds a new gcc plugin named "latent_entropy". It is designed to 2016-10-15 10:03:15 -07:00
blk-stat.c blk-stat: fix a few cases of missing batch flushing 2016-12-09 13:08:35 -07:00
blk-stat.h block: add scalable completion tracking of requests 2016-11-10 13:53:26 -07:00
blk-sysfs.c Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
blk-tag.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-throttle.c block: replace REQ_THROTTLED with a bio flag 2016-10-28 08:45:17 -06:00
blk-timeout.c block: remove REQ_NO_TIMEOUT flag 2015-12-22 09:38:34 -07:00
blk-wbt.c block: Avoid that sparse complains about context imbalance in __wbt_wait() 2017-01-02 09:48:47 -07:00
blk-wbt.h blk-wbt: allow wbt to be enabled always through sysfs 2016-11-28 10:27:03 -07:00
blk-zoned.c block: zoned: fix harmless maybe-uninitialized warning 2016-10-24 20:51:22 -06:00
blk.h block: move rq_ioc() to blk.h 2017-01-17 10:03:42 -07:00
bounce.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-09-19 18:57:09 -07:00
bsg-lib.c SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
bsg.c sg_write()/bsg_write() is not fit to be called under KERNEL_DS 2016-12-22 23:03:42 -05:00
cfq-iosched.c block: move existing elevator ops to union 2017-01-17 10:03:33 -07:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
deadline-iosched.c block: move existing elevator ops to union 2017-01-17 10:03:33 -07:00
elevator.c blk-mq-sched: allow setting of default IO scheduler 2017-01-17 10:04:31 -07:00
genhd.c block: fix bdi vs gendisk lifetime mismatch 2016-08-04 14:19:16 -06:00
ioctl.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ioprio.c block: fix use-after-free in sys_ioprio_get() 2016-07-01 08:39:24 -06:00
Kconfig block: hook up writeback throttling 2016-11-10 13:53:40 -07:00
Kconfig.iosched blk-mq-sched: allow setting of default IO scheduler 2017-01-17 10:04:31 -07:00
Makefile mq-deadline: add blk-mq adaptation of the deadline IO scheduler 2017-01-17 10:04:25 -07:00
mq-deadline.c mq-deadline: add blk-mq adaptation of the deadline IO scheduler 2017-01-17 10:04:25 -07:00
noop-iosched.c block: move existing elevator ops to union 2017-01-17 10:03:33 -07:00
partition-generic.c block: Check partition alignment on zoned block devices 2016-12-01 07:56:53 -07:00
scsi_ioctl.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
t10-pi.c block: Consolidate static integrity profile properties 2015-10-21 14:42:38 -06:00