https://github.com/torvalds/linux
Revision 36e3cf273977da34a760d513e1bef8431a9abaa0 authored by Bart Van Assche on 07 April 2017, 18:16:53 UTC, committed by Jens Axboe on 07 April 2017, 18:27:08 UTC
If a .queue_rq() function returns BLK_MQ_RQ_QUEUE_BUSY then the block driver that implements that function is responsible for rerunning the hardware queue once requests can be queued again successfully. commit 52d7f1b5c2f3 ("blk-mq: Avoid that requeueing starts stopped queues") removed the blk_mq_stop_hw_queue() call from scsi_queue_rq() for the BLK_MQ_RQ_QUEUE_BUSY case. Hence change all calls to functions that are intended to rerun a busy queue such that these examine all hardware queues instead of only stopped queues. Since no other functions than scsi_internal_device_block() and scsi_internal_device_unblock() should ever stop or restart a SCSI queue, change the blk_mq_delay_queue() call into a blk_mq_delay_run_hw_queue() call. Fixes: commit 52d7f1b5c2f3 ("blk-mq: Avoid that requeueing starts stopped queues") Fixes: commit 7e79dadce222 ("blk-mq: stop hardware queue in blk_mq_delay_queue()") Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagi@grimberg.me> Cc: Long Li <longli@microsoft.com> Cc: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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Tip revision: 36e3cf273977da34a760d513e1bef8431a9abaa0 authored by Bart Van Assche on 07 April 2017, 18:16:53 UTC
scsi: Avoid that SCSI queues get stuck
scsi: Avoid that SCSI queues get stuck
Tip revision: 36e3cf2
File | Mode | Size |
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arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
firmware | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 31 bytes |
.gitattributes | -rw-r--r-- | 30 bytes |
.gitignore | -rw-r--r-- | 1.3 KB |
.mailmap | -rw-r--r-- | 7.7 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 96.0 KB |
Kbuild | -rw-r--r-- | 2.8 KB |
Kconfig | -rw-r--r-- | 252 bytes |
MAINTAINERS | -rw-r--r-- | 389.2 KB |
Makefile | -rw-r--r-- | 57.7 KB |
README | -rw-r--r-- | 722 bytes |
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