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Ming Lei a1dfcb01e3 blk-mq: turn WARN_ON in __blk_mq_run_hw_queue into printk 
[ Upstream commit 7df938fbc4ee641e70e05002ac67c24b19e86e74 ]

We know this WARN_ON is harmless and in reality it may be trigged,
so convert it to printk() and dump_stack() to avoid to confusing
people.

Also add comment about two releated races here.

Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "jianchao.wang" <jianchao.w.wang@oracle.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-26 11:02:07 +02:00
..
partitions
partitions/msdos: Unable to mount UFS 44bsd partitions
2018-04-08 14:26:28 +02:00
badblocks.c
badblocks: fix wrong return value in badblocks_set if badblocks are disabled
2017-12-20 10:10:26 +01:00
bfq-cgroup.c
block, bfq: put async queues for root bfq groups too
2018-04-12 12:32:19 +02:00
bfq-iosched.c
block,bfq: Disable writeback throttling
2017-12-25 14:26:26 +01:00
bfq-iosched.h
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
bfq-wf2q.c
block, bfq: guarantee update_next_in_service always returns an eligible entity
2017-08-31 08:20:31 -06:00
bio-integrity.c
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
bio.c
Fix slab name "biovec-(1<<(21-12))"
2018-04-08 14:26:33 +02:00
blk-cgroup.c
blkcg: avoid free blkcg_root when failed to alloc blkcg policy
2017-08-25 13:51:07 -06:00
blk-core.c
block: fix the count of PGPGOUT for WRITE_SAME
2018-03-08 22:41:05 -08:00
blk-exec.c
block: introduce new block status code type
2017-06-09 09:27:32 -06:00
blk-flush.c
block: update comments to reflect REQ_FLUSH -> REQ_PREFLUSH rename
2017-08-25 10:36:54 -06:00
blk-integrity.c
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
blk-ioc.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-lib.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-map.c
blk_rq_map_user_iov: fix error override
2018-02-25 11:07:49 +01:00
blk-merge.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-mq-cpumap.c
blk-mq: don't keep offline CPUs mapped to hctx 0
2018-04-19 08:56:20 +02:00
blk-mq-debugfs.c
blk-mq-debugfs: fix device sched directory for default scheduler
2017-10-03 15:58:55 -06:00
blk-mq-debugfs.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-mq-pci.c
blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL
2017-08-18 08:08:14 -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
blk-mq-sched: dispatch from scheduler IFF progress is made in ->dispatch
2017-12-20 10:10:27 +01:00
blk-mq-sched.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-mq-sysfs.c
blk-mq: untangle debugfs and sysfs
2017-05-04 08:24:13 -06:00
blk-mq-tag.c
blk-mq: Make blk_mq_reinit_tagset() calls easier to read
2017-08-18 08:36:58 -06:00
blk-mq-tag.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-mq-virtio.c
blk-mq: provide a default queue mapping for virtio device
2017-02-27 20:54:05 +02:00
blk-mq.c
blk-mq: turn WARN_ON in __blk_mq_run_hw_queue into printk
2018-04-26 11:02:07 +02:00
blk-mq.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-settings.c
block: Warn if blk_queue_rq_timed_out() is called for a blk-mq queue
2017-08-23 12:02:30 -06:00
blk-softirq.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-stat.c
blk-stat: don't use this_cpu_ptr() in a preemptable section
2017-05-10 07:40:18 -06:00
blk-stat.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-sysfs.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-tag.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-throttle.c
block-throttle: avoid double charge
2017-12-29 17:53:47 +01:00
blk-timeout.c
block: Fix a race between blk_cleanup_queue() and timeout handling
2017-11-30 08:40:52 +00:00
blk-wbt.c
blk-wbt: account flush requests correctly
2018-02-22 15:42:29 +01:00
blk-wbt.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
blk-zoned.c
block: replace bi_bdev with a gendisk pointer and partitions index
2017-08-23 12:49:55 -06:00
blk.h
block: drain queue before waiting for q_usage_counter becoming zero
2018-03-03 10:24:35 +01:00
bounce.c
block: don't let passthrough IO go into .make_request_fn()
2018-01-02 20:31:05 +01:00
bsg-lib.c
bsg-lib: fix use-after-free under memory-pressure
2017-10-04 08:35:04 -06:00
bsg.c
bsg: remove #if 0'ed code
2017-08-29 10:50:30 -06:00
cfq-iosched.c
block/cfq: cache rightmost rb_node
2017-09-08 18:26:49 -07:00
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, scheduler: convert xxx_var_store to void
2017-08-28 10:01:08 -06:00
elevator.c
block: fix warning when I/O elevator is changed as request_queue is being removed
2017-08-28 10:52:44 -06:00
genhd.c
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
ioctl.c
block: remove the discard_zeroes_data flag
2017-04-08 11:25:38 -06:00
ioprio.c
block: Add fallthrough markers to switch statements
2017-06-21 11:46:07 -06:00
Kconfig
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: fix domain token leak during requeue
2018-03-08 22:41:05 -08:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mq-deadline.c
mq-deadline: Enable auto-loading when built as module
2017-08-29 10:47:23 -06:00
noop-iosched.c
block: move existing elevator ops to union
2017-01-17 10:03:33 -07:00
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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
scsi_ioctl.c
block: Change argument type of scsi_req_init()
2017-06-20 19:27:14 -06:00
sed-opal.c
block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled
2017-09-11 09:45:52 -06:00
t10-pi.c
t10-pi: Move opencoded contants to common header
2017-07-03 16:56:25 -06:00