linux-stable/block
Yu Kuai 821e6a6133 blk-iolatency: error out if blk_get_queue() failed in iolatency_set_limit()
[ Upstream commit 8d75d0eff6 ]

If queue is dying while iolatency_set_limit() is in progress,
blk_get_queue() won't increment the refcount of the queue. However,
blk_put_queue() will still decrement the refcount later, which will
cause the refcout to be unbalanced.

Thus error out in such case to fix the problem.

Fixes: 8c772a9bfc ("blk-iolatency: fix IO hang due to negative inflight counter")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20210805124645.543797-1-yukuai3@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-08-12 13:22:08 +02:00
..
partitions partitions: msdos: fix one-byte get_unaligned() 2021-07-20 16:05:39 +02:00
badblocks.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
bfq-cgroup.c bfq: fix blkio cgroup leakage v4 2020-08-18 07:48:08 -07:00
bfq-iosched.c kyber: fix out of bounds access when preempted 2021-05-19 10:13:13 +02:00
bfq-iosched.h bfq: fix blkio cgroup leakage v4 2020-08-18 07:48:08 -07:00
bfq-wf2q.c bfq: fix blkio cgroup leakage v4 2020-08-18 07:48:08 -07:00
bio-integrity.c block: make function __bio_integrity_free() static 2020-07-02 12:38:18 -06:00
bio.c block: only update parent bi_status when bio fail 2021-04-16 11:43:21 +02:00
blk-cgroup-rwstat.c blk-cgroup: Fix the recursive blkg rwstat 2021-03-30 14:31:48 +02:00
blk-cgroup-rwstat.h blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT 2019-11-07 12:28:13 -07:00
blk-cgroup.c blk-cgroup: Use cond_resched() when destroy blkgs 2021-02-13 13:55:13 +01:00
blk-core.c scsi: block: Do not accept any requests while suspended 2021-01-12 20:18:17 +01:00
blk-crypto-fallback.c block: rename generic_make_request to submit_bio_noacct 2020-07-01 07:27:24 -06:00
blk-crypto-internal.h block: make blk_crypto_rq_bio_prep() able to fail 2020-10-05 10:47:43 -06:00
blk-crypto.c block: warn if !__GFP_DIRECT_RECLAIM in bio_crypt_set_ctx() 2020-10-05 10:47:43 -06:00
blk-exec.c block: add a blk_account_io_merge_bio helper 2020-05-27 05:21:23 -06:00
blk-flush.c block: avoid double io accounting for flush request 2021-07-14 16:56:11 +02:00
blk-integrity.c block: remove the unused blk_integrity_merge_bio export 2020-10-06 07:29:53 -06:00
blk-ioc.c block: remove retry loop in ioc_release_fn() 2020-07-16 10:22:15 -06:00
blk-iocost.c blk-iocost: fix operation ordering in iocg_wake_fn() 2021-08-04 12:46:41 +02:00
blk-iolatency.c blk-iolatency: error out if blk_get_queue() failed in iolatency_set_limit() 2021-08-12 13:22:08 +02:00
blk-lib.c block: add a bdev_is_partition helper 2020-09-25 08:18:57 -06:00
blk-map.c block: fix bmd->is_null_mapped initialization 2020-09-23 09:18:39 -06:00
blk-merge.c block: fix discard request merge 2021-07-14 16:56:02 +02:00
blk-mq-cpumap.c blk-mq: remove the calling of local_memory_node() 2020-10-20 07:08:17 -06:00
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c blk-mq-debugfs: Add decode for BLK_MQ_F_TAG_HCTX_SHARED 2021-01-19 18:27:29 +01:00
blk-mq-debugfs.h blk-mq: no need to check return value of debugfs_create functions 2019-06-13 03:00:30 -06:00
blk-mq-pci.c block: Fix blk_mq_*_map_queues() kernel-doc headers 2019-05-31 15:12:34 -06:00
blk-mq-rdma.c block: Fix blk_mq_*_map_queues() kernel-doc headers 2019-05-31 15:12:34 -06:00
blk-mq-sched.c kyber: fix out of bounds access when preempted 2021-05-19 10:13:13 +02:00
blk-mq-sched.h block-5.10-2020-10-12 2020-10-13 12:12:44 -07:00
blk-mq-sysfs.c blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue 2020-10-09 12:46:28 -06:00
blk-mq-tag.c blk-mq: clear stale request in tags->rq[] before freeing one request pool 2021-07-14 16:55:58 +02:00
blk-mq-tag.h blk-mq: clear stale request in tags->rq[] before freeing one request pool 2021-07-14 16:55:58 +02:00
blk-mq-virtio.c blk-mq: Fix typo in comment 2020-03-17 20:55:21 +01:00
blk-mq.c blk-mq: update hctx->dispatch_busy in case of real scheduler 2021-07-14 16:56:13 +02:00
blk-mq.h blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter 2021-07-14 16:55:58 +02:00
blk-pm.c scsi: block: Fix a race in the runtime power management code 2021-01-06 14:56:50 +01:00
blk-pm.h scsi: block: Do not accept any requests while suspended 2021-01-12 20:18:17 +01:00
blk-rq-qos.c rq-qos: fix missed wake-ups in rq_qos_throttle try two 2021-07-19 09:45:00 +02:00
blk-rq-qos.h block: fix race between adding/removing rq qos and normal IO 2021-07-14 16:56:00 +02:00
blk-settings.c blk-settings: align max_sectors on "logical_block_size" boundary 2021-03-04 11:38:22 +01:00
blk-stat.c blk-stat: make q->stats->lock irqsafe 2020-09-01 16:48:46 -06:00
blk-stat.h
blk-sysfs.c blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue 2020-10-09 12:46:28 -06:00
blk-throttle.c blk-throttle: Re-use the throtl_set_slice_end() 2020-10-08 08:01:38 -06:00
blk-timeout.c block: blk-timeout: delete duplicated word 2020-07-31 16:29:47 -06:00
blk-wbt.c blk-wbt: make sure throttle is enabled properly 2021-07-14 16:56:12 +02:00
blk-wbt.h blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() 2021-07-14 16:56:12 +02:00
blk-zoned.c block: Fix REQ_OP_ZONE_RESET_ALL handling 2021-03-30 14:31:51 +02:00
blk.h block: move blk_mq_sched_try_merge to blk-merge.c 2020-10-06 07:29:53 -06:00
bounce.c block: make bio_crypt_clone() able to fail 2020-10-05 10:47:43 -06:00
bsg-lib.c block: drop double zeroing 2020-09-23 09:18:13 -06:00
bsg.c bsg: free the request before return error code 2021-03-04 11:37:42 +01:00
cmdline-parser.c
elevator.c block: fix comment and add lockdep assert 2020-10-09 12:34:06 -06:00
genhd.c block: Suppress uevent for hidden device when removed 2021-03-30 14:31:52 +02:00
ioctl.c block: return -EBUSY when there are open partitions in blkdev_reread_part 2021-04-28 13:39:59 +02:00
ioprio.c block: grant IOPRIO_CLASS_RT to CAP_SYS_NICE 2020-09-01 19:38:33 -06:00
Kconfig blk-wbt: Remove obsolete multiqueue I/O scheduling comment 2020-09-01 16:49:26 -06:00
Kconfig.iosched treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
keyslot-manager.c block/keyslot-manager: prevent crash when num_slots=1 2020-11-20 11:52:52 -07:00
kyber-iosched.c kyber: fix out of bounds access when preempted 2021-05-19 10:13:13 +02:00
Makefile blk-mq: merge blk-softirq.c into blk-mq.c 2020-06-24 09:15:56 -06:00
mq-deadline.c kyber: fix out of bounds access when preempted 2021-05-19 10:13:13 +02:00
opal_proto.h block: sed-opal: Change the check condition for regular session validity 2020-03-12 08:00:10 -06:00
scsi_ioctl.c drivers-5.10-2020-10-12 2020-10-13 13:04:41 -07:00
sed-opal.c block: sed-opal: Change the check condition for regular session validity 2020-03-12 08:00:10 -06:00
t10-pi.c block: Allow t10-pi to be modular 2020-01-06 20:59:04 -07:00