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blk-mq: use the introduced blk_mq_unquiesce_queue()

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blk_mq_unquiesce_queue() is used for unquiescing the
queue explicitly, so replace blk_mq_start_stopped_hw_queues()
with it.

For the scsi part, this patch takes Bart's suggestion to
switch to block quiesce/unquiesce API completely.

Cc: linux-nvme@lists.infradead.org
Cc: linux-scsi@vger.kernel.org
Cc: dm-devel@redhat.com
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei
2017-06-06 23:22:04 +08:00
committed by Jens Axboe
parent e4e739131a
commit f660174e8b
3 changed files with 4 additions and 4 deletions
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4
drivers/scsi/scsi_lib.c
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@@ -2962,7 +2962,7 @@ scsi_internal_device_block(struct scsi_device *sdev, bool wait)
if (wait)
blk_mq_quiesce_queue(q);
else
blk_mq_stop_hw_queues(q);
blk_mq_quiesce_queue_nowait(q);
} else {
spin_lock_irqsave(q->queue_lock, flags);
blk_stop_queue(q);
@@ -3016,7 +3016,7 @@ scsi_internal_device_unblock(struct scsi_device *sdev,
return -EINVAL;
if (q->mq_ops) {
blk_mq_start_stopped_hw_queues(q, false);
blk_mq_unquiesce_queue(q);
} else {
spin_lock_irqsave(q->queue_lock, flags);
blk_start_queue(q);