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Commit c7a571b4 authored by Jens Axboe's avatar Jens Axboe
Browse files

blk-mq-sched: don't add flushes to the head of requeue queue 



If we are currently out of driver tags, we don't want to add a
new flush (without a tag) to the head of the requeue list. We
want to add it to the back, behind the others that are
potentially also waiting for a tag.

Signed-off-by: default avatarJens Axboe <axboe@fb.com>
Reviewed-by: default avatarOmar Sandoval <osandov@fb.com>
parent 2aa0f21d

block/blk-mq-sched.c

+1 −1
Original line number Diff line number Diff line
@@ -351,7 +351,7 @@ static void blk_mq_sched_insert_flush(struct blk_mq_hw_ctx *hctx, 
		blk_insert_flush(rq);

		blk_mq_run_hw_queue(hctx, true);

	} else

		blk_mq_add_to_requeue_list(rq, true, true);

		blk_mq_add_to_requeue_list(rq, false, true);

}



void blk_mq_sched_insert_request(struct request *rq, bool at_head,