Commit 9c71c83c authored Nov 02, 2017 by Ming Lei Committed by Jens Axboe Nov 04, 2017

blk-flush: don't run queue for requests bypassing flush



blk_insert_flush() should only insert request since run queue always
follows it.

In case of bypassing flush, we don't need to run queue because every
blk_insert_flush() follows one run queue.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 6d6f167c

block/blk-flush.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -463,7 +463,7 @@ void blk_insert_flush(struct request *rq)
		if ((policy & REQ_FSEQ_DATA) &&
		!(policy & (REQ_FSEQ_PREFLUSH \| REQ_FSEQ_POSTFLUSH))) {
		if (q->mq_ops)
		blk_mq_sched_insert_request(rq, false, true, false, false);
		blk_mq_sched_insert_request(rq, false, false, false, false);
		else
		list_add_tail(&rq->queuelist, &q->queue_head);
		return;