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Ming Lei 9663d294ae block: call rq_qos_exit() after queue is frozen 
[ Upstream commit c57cdf7a9e ]

rq_qos_exit() removes the current q->rq_qos, this action has to be
done after queue is frozen, otherwise the IO queue path may never
be waken up, then IO hang is caused.

So fixes this issue by moving rq_qos_exit() after queue is frozen.

Cc: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-01 09:17:06 +01:00
..
partitions partitions/aix: append null character to print data from disk 2018-07-27 09:17:41 -06:00
badblocks.c badblocks: fix wrong return value in badblocks_set if badblocks are disabled 2017-11-03 11:29:50 -07:00
bfq-cgroup.c block: bfq: swap puts in bfqg_and_blkg_put 2018-09-06 11:32:58 -06:00
bfq-iosched.c blok, bfq: do not plug I/O if all queues are weight-raised 2019-11-20 18:46:44 +01:00
bfq-iosched.h block, bfq: inject other-queue I/O into seeky idle queues on NCQ flash 2019-11-20 18:46:44 +01:00
bfq-wf2q.c block, bfq: correctly charge and reset entity service in all cases 2018-11-13 11:08:28 -08:00
bio-integrity.c block/bio-integrity: fix a memory leak bug 2019-07-31 07:27:08 +02:00
bio.c block: do not leak memory in bio_copy_user_iov() 2019-04-17 08:38:51 +02:00
blk-cgroup.c blkcg: make blkcg_print_stat() print stats only for online blkgs 2019-11-12 19:21:19 +01:00
blk-core.c block: call rq_qos_exit() after queue is frozen 2019-12-01 09:17:06 +01:00
blk-exec.c blk-mq-sched: remove unused 'can_block' arg from blk_mq_sched_insert_request 2018-01-17 09:49:21 -07:00
blk-flush.c block: fix null pointer dereference in blk_mq_rq_timed_out() 2019-10-05 13:10:08 +02:00
blk-integrity.c block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
blk-ioc.c block, mm: remove unnecessary __GFP_HIGH flag 2018-07-09 09:07:54 -06:00
blk-iolatency.c blk-iolatency: fix STS_AGAIN handling 2019-09-16 08:21:41 +02:00
blk-lib.c block: make sure writesame bio is aligned with logical block size 2018-11-13 11:08:16 -08:00
blk-map.c Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block 2018-01-29 11:51:49 -08:00
blk-merge.c block: fix the DISCARD request merge 2019-12-01 09:17:03 +01:00
blk-mq-cpumap.c blk-mq: don't keep offline CPUs mapped to hctx 0 2018-04-10 08:38:46 -06:00
blk-mq-debugfs-zoned.c block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n 2018-07-09 09:07:52 -06:00
blk-mq-debugfs.c block, scsi: Change the preempt-only flag into a counter 2019-08-04 09:30:57 +02:00
blk-mq-debugfs.h block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n 2018-07-09 09:07:52 -06:00
blk-mq-pci.c blk-mq: code clean-up by adding an API to clear set->mq_map 2018-07-09 09:07:53 -06:00
blk-mq-rdma.c block: Add rdma affinity based queue mapping helper 2017-08-08 14:58:03 -04:00
blk-mq-sched.c block: mq-deadline: Fix write completion handling 2019-01-13 09:51:07 +01:00
blk-mq-sched.h block: mq-deadline: Fix write completion handling 2019-01-13 09:51:07 +01:00
blk-mq-sysfs.c blk-mq: free hw queue's resource in hctx's release handler 2019-09-16 08:22:13 +02:00
blk-mq-tag.c blk-mq: Allow blocking queue tag iter callbacks 2018-09-25 20:17:59 -06:00
blk-mq-tag.h Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
blk-mq-virtio.c
blk-mq.c block: fix null pointer dereference in blk_mq_rq_timed_out() 2019-10-05 13:10:08 +02:00
blk-mq.h blk-mq: free hw queue's resource in hctx's release handler 2019-09-16 08:22:13 +02:00
blk-rq-qos.c blk-wbt: fix performance regression in wbt scale_up/scale_down 2019-10-17 13:45:16 -07:00
blk-rq-qos.h blk-rq-qos: fix first node deletion of rq_qos_del() 2019-10-29 09:20:09 +01:00
blk-settings.c block: allow max_discard_segments to be stacked 2018-07-24 14:46:39 -06:00
blk-softirq.c block: fix timeout changes for legacy request drivers 2018-06-19 11:27:18 -06:00
blk-stat.c blk-stat: export helpers for modifying blk_rq_stat 2018-07-09 09:07:54 -06:00
blk-stat.h block: deactivate blk_stat timer in wbt_disable_default() 2019-01-13 09:51:06 +01:00
blk-sysfs.c block: call rq_qos_exit() after queue is frozen 2019-12-01 09:17:06 +01:00
blk-tag.c for-linus-20180616 2018-06-17 05:37:55 +09:00
blk-throttle.c blk-throttle: fix zero wait time for iops throttled group 2019-07-26 09:14:30 +02:00
blk-timeout.c blk-mq: Fix timeout handling in case the timeout handler returns BLK_EH_DONE 2018-06-23 10:25:45 -06:00
blk-wbt.c blk-wbt: fix performance regression in wbt scale_up/scale_down 2019-10-17 13:45:16 -07:00
blk-wbt.h block: remove external dependency on wbt_flags 2018-07-09 09:07:54 -06:00
blk-zoned.c block: Remove a superfluous cast from blkdev_report_zones() 2018-07-09 09:07:52 -06:00
blk.h block: fix null pointer dereference in blk_mq_rq_timed_out() 2019-10-05 13:10:08 +02:00
bounce.c block: copy ioprio in __bio_clone_fast() and bounce 2018-12-01 09:37:32 +01:00
bsg-lib.c block/bsg-lib: use PTR_ERR_OR_ZERO to simplify the flow path 2018-08-01 09:13:03 -06:00
bsg.c block: bsg: move atomic_t ref_count variable to refcount API 2018-08-27 19:17:02 -06:00
cfq-iosched.c cfq: Suppress compiler warnings about comparisons 2018-08-07 17:57:13 -06:00
cmdline-parser.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_ioctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
deadline-iosched.c block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
elevator.c block: fix deadline elevator drain for zoned block devices 2018-09-26 19:57:24 -06:00
genhd.c block: fix use-after-free on gendisk 2019-05-31 06:46:18 -07:00
ioctl.c block: pass inclusive 'lend' parameter to truncate_inode_pages_range 2018-02-23 15:20:19 -07:00
ioprio.c block: add ioprio_check_cap function 2018-05-31 10:50:54 -04:00
Kconfig block: introduce blk-iolatency io controller 2018-07-09 09:07:54 -06:00
Kconfig.iosched License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kyber-iosched.c block: kyber: make kyber more friendly with merging 2018-05-30 10:47:40 -06:00
Makefile block: introduce blk-iolatency io controller 2018-07-09 09:07:54 -06:00
mq-deadline.c block: mq-deadline: Fix queue restart handling 2019-10-07 18:57:19 +02:00
noop-iosched.c
opal_proto.h block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled 2017-09-11 09:45:52 -06:00
partition-generic.c block: fix use-after-free on gendisk 2019-05-31 06:46:18 -07:00
scsi_ioctl.c block: consistently use GFP_NOIO instead of __GFP_NORECLAIM 2018-05-14 08:55:18 -06:00
sed-opal.c block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR 2019-05-31 06:46:24 -07:00
t10-pi.c block: move dif_prepare/dif_complete functions to block layer 2018-07-30 08:27:02 -06:00