kernel_optimize_test/block
Bart Van Assche 3a96437f6b blk-mq: Swap two calls in blk_mq_exit_queue()
[ Upstream commit 630ef623ed26c18a457cdc070cf24014e50129c2 ]

If a tag set is shared across request queues (e.g. SCSI LUNs) then the
block layer core keeps track of the number of active request queues in
tags->active_queues. blk_mq_tag_busy() and blk_mq_tag_idle() update that
atomic counter if the hctx flag BLK_MQ_F_TAG_QUEUE_SHARED is set. Make
sure that blk_mq_exit_queue() calls blk_mq_tag_idle() before that flag is
cleared by blk_mq_del_queue_tag_set().

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Fixes: 0d2602ca30 ("blk-mq: improve support for shared tags maps")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210513171529.7977-1-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-19 10:13:14 +02:00
..
partitions
badblocks.c
bfq-cgroup.c
bfq-iosched.c kyber: fix out of bounds access when preempted 2021-05-19 10:13:13 +02:00
bfq-iosched.h
bfq-wf2q.c
bio-integrity.c
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.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
blk-crypto-internal.h
blk-crypto.c
blk-exec.c
blk-flush.c
blk-integrity.c
blk-ioc.c
blk-iocost.c blk-iocost: fix weight updates of inner active iocgs 2021-05-19 10:13:11 +02:00
blk-iolatency.c
blk-lib.c
blk-map.c
blk-merge.c block: recalculate segment count for multi-segment discards correctly 2021-03-30 14:32:06 +02:00
blk-mq-cpumap.c
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-pci.c
blk-mq-rdma.c
blk-mq-sched.c kyber: fix out of bounds access when preempted 2021-05-19 10:13:13 +02:00
blk-mq-sched.h
blk-mq-sysfs.c
blk-mq-tag.c
blk-mq-tag.h
blk-mq-virtio.c
blk-mq.c blk-mq: Swap two calls in blk_mq_exit_queue() 2021-05-19 10:13:14 +02:00
blk-mq.h blk-mq: test QUEUE_FLAG_HCTX_ACTIVE for sbitmap_shared in hctx_may_queue 2021-02-03 23:28:44 +01:00
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
blk-rq-qos.h
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.h
blk-sysfs.c
blk-throttle.c
blk-timeout.c
blk-wbt.c
blk-wbt.h
blk-zoned.c block: Fix REQ_OP_ZONE_RESET_ALL handling 2021-03-30 14:31:51 +02:00
blk.h
bounce.c
bsg-lib.c
bsg.c bsg: free the request before return error code 2021-03-04 11:37:42 +01:00
cmdline-parser.c
elevator.c
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
Kconfig
Kconfig.iosched
keyslot-manager.c
kyber-iosched.c kyber: fix out of bounds access when preempted 2021-05-19 10:13:13 +02:00
Makefile
mq-deadline.c kyber: fix out of bounds access when preempted 2021-05-19 10:13:13 +02:00
opal_proto.h
scsi_ioctl.c
sed-opal.c
t10-pi.c