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Bart Van Assche 4ddd56b003 block: Relax a check in blk_start_queue() 
Calling blk_start_queue() from interrupt context with the queue
lock held and without disabling IRQs, as the skd driver does, is
safe. This patch avoids that loading the skd driver triggers the
following warning:

WARNING: CPU: 11 PID: 1348 at block/blk-core.c:283 blk_start_queue+0x84/0xa0
RIP: 0010:blk_start_queue+0x84/0xa0
Call Trace:
 skd_unquiesce_dev+0x12a/0x1d0 [skd]
 skd_complete_internal+0x1e7/0x5a0 [skd]
 skd_complete_other+0xc2/0xd0 [skd]
 skd_isr_completion_posted.isra.30+0x2a5/0x470 [skd]
 skd_isr+0x14f/0x180 [skd]
 irq_forced_thread_fn+0x2a/0x70
 irq_thread+0x144/0x1a0
 kthread+0x125/0x140
 ret_from_fork+0x2a/0x40

Fixes: commit a038e25364 ("[PATCH] blk_start_queue() must be called with irq disabled - add warning")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-08-18 08:45:29 -06:00
..
partitions partitions/ldm: switch to use uuid_t 2017-06-05 16:59:14 +02:00
badblocks.c block: Add fallthrough markers to switch statements 2017-06-21 11:46:07 -06:00
bfq-cgroup.c block, bfq: access and cache blkg data only when safe 2017-06-08 09:51:10 -06:00
bfq-iosched.c block, bfq: boost throughput with flash-based non-queueing devices 2017-08-11 08:58:03 -06:00
bfq-iosched.h block,bfq: refactor device-idling logic 2017-08-11 08:58:02 -06:00
bfq-wf2q.c bfq: fix typos in comments about B-WF2Q+ algorithm 2017-07-12 08:32:02 -06:00
bio-integrity.c bio-integrity: move the bio integrity profile check earlier in bio_integrity_prep 2017-08-09 10:00:29 -06:00
bio.c block: pass in queue to inflight accounting 2017-08-09 13:09:16 -06:00
blk-cgroup.c block: Avoid that blk_exit_rl() triggers a use-after-free 2017-06-01 13:07:55 -06:00
blk-core.c block: Relax a check in blk_start_queue() 2017-08-18 08:45:29 -06:00
blk-exec.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
blk-flush.c block: Check locking assumptions at runtime 2017-06-20 19:27:14 -06:00
blk-integrity.c block: switch bios to blk_status_t 2017-06-09 09:27:32 -06:00
blk-ioc.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-03-03 10:53:35 -08:00
blk-lib.c block: Fix __blkdev_issue_zeroout loop 2017-07-06 09:43:20 -06:00
blk-map.c blk-map: call blk_queue_bounce from blk_rq_append_bio 2017-06-27 12:13:21 -06:00
blk-merge.c block: pass in queue to inflight accounting 2017-08-09 13:09:16 -06:00
blk-mq-cpumap.c blk-mq: map queues to all present CPUs 2017-07-24 10:01:31 -06:00
blk-mq-debugfs.c blk-mq-debugfs: Declare a local symbol static 2017-08-18 08:36:58 -06:00
blk-mq-debugfs.h mq-deadline: add debugfs attributes 2017-05-04 08:25:17 -06:00
blk-mq-pci.c blk-mq-pci: Fix two spelling mistakes 2017-03-29 11:09:51 -06:00
blk-mq-sched.c blk-mq-sched: fix performance regression of mq-deadline 2017-07-03 16:54:09 -06:00
blk-mq-sched.h Merge commit '8e8320c9315c' into for-4.13/block 2017-06-22 21:55:24 -06:00
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 blk-mq-sched: Allocate sched reserved tags as specified in the original queue tagset 2017-03-02 08:56:04 -07:00
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 block: Fix two comments that refer to .queue_rq() return values 2017-08-18 08:36:58 -06:00
blk-mq.h blk-mq: provide internal in-flight variant 2017-08-09 13:09:28 -06:00
blk-settings.c block: don't bother with bounce limits for make_request drivers 2017-06-27 12:13:45 -06:00
blk-softirq.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/topology.h> 2017-03-02 08:42:26 +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 blk-stat: kill blk_stat_rq_ddir() 2017-04-21 07:56:23 -06:00
blk-sysfs.c block: Fix a blk_exit_rl() regression 2017-06-14 13:27:50 -06:00
blk-tag.c block: Unexport blk_queue_end_tag() 2017-08-18 08:36:58 -06:00
blk-throttle.c block: use standard blktrace API to output cgroup info for debug notes 2017-07-29 09:00:03 -06:00
blk-timeout.c block: Check locking assumptions at runtime 2017-06-20 19:27:14 -06:00
blk-wbt.c sched/wait: Disambiguate wq_entry->task_list and wq_head->task_list naming 2017-06-20 12:19:14 +02:00
blk-wbt.h block: Make writeback throttling defaults consistent for SQ devices 2017-04-19 08:49:03 -06:00
blk-zoned.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
blk.h bio-integrity: stop abusing bi_end_io 2017-07-03 17:00:59 -06:00
bounce.c block: remove the queue_bounce_pfn helper 2017-06-27 12:13:45 -06:00
bsg-lib.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
bsg.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
cfq-iosched.c cfq: Give a chance for arming slice idle timer in case of group_idle 2017-08-11 09:00:26 -06:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c compat_hdio_ioctl: get rid of set_fs() 2017-06-29 18:17:52 -04:00
deadline-iosched.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
elevator.c block: Add fallthrough markers to switch statements 2017-06-21 11:46:07 -06:00
genhd.c genhd: Annotate all part and part_tbl pointer dereferences 2017-08-18 08:36:58 -06:00
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 Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm 2017-05-12 15:43:10 -07:00
Kconfig.iosched block, bfq: add full hierarchical scheduling and cgroups support 2017-04-19 08:30:26 -06:00
kyber-iosched.c Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-03 13:08:04 -07:00
Makefile block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
mq-deadline.c mq-deadline: add debugfs attributes 2017-05-04 08:25:17 -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: allocate struct opal_dev dynamically 2017-02-17 12:41:47 -07:00
partition-generic.c genhd: Annotate all part and part_tbl pointer dereferences 2017-08-18 08:36:58 -06:00
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: Tone down all the pr_* to debugs 2017-04-07 14:24:16 -06:00
t10-pi.c t10-pi: Move opencoded contants to common header 2017-07-03 16:56:25 -06:00