Commit d4acf365 authored Aug 09, 2017 by Bart Van Assche Committed by Jens Axboe Aug 09, 2017

block: Make blk_mq_delay_kick_requeue_list() rerun the queue at a quiet time



The blk_mq_delay_kick_requeue_list() function is used by the device
mapper and only by the device mapper to rerun the queue and requeue
list after a delay. This function is called once per request that
gets requeued. Modify this function such that the queue is run once
per path change event instead of once per request that is requeued.

Fixes: commit 2849450a ("blk-mq: introduce blk_mq_delay_kick_requeue_list()")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent f86e28c4

block/blk-mq.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -684,7 +684,7 @@ EXPORT_SYMBOL(blk_mq_kick_requeue_list);
		void blk_mq_delay_kick_requeue_list(struct request_queue *q,
		unsigned long msecs)
		{
		kblockd_schedule_delayed_work(&q->requeue_work,
		kblockd_mod_delayed_work_on(WORK_CPU_UNBOUND, &q->requeue_work,
		msecs_to_jiffies(msecs));
		}
		EXPORT_SYMBOL(blk_mq_delay_kick_requeue_list);

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