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Commit 53d63e6b authored by Jens Axboe's avatar Jens Axboe
Browse files

block: make the flush insertion use the tail of the dispatch list 



It's not a preempt type request, in fact we have to insert it
behind requests that do specify INSERT_FRONT.

Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
parent b710a480

block/blk-flush.c

+2 −2
Original line number Diff line number Diff line
@@ -261,7 +261,7 @@ static bool blk_kick_flush(struct request_queue *q) 
	q->flush_rq.end_io = flush_end_io;



	q->flush_pending_idx ^= 1;

	__elv_add_request(q, &q->flush_rq, ELEVATOR_INSERT_REQUEUE);

	list_add_tail(&q->flush_rq.queuelist, &q->queue_head);

	return true;

}
@@ -312,7 +312,7 @@ void blk_insert_flush(struct request *rq) 
	 */

	if ((policy & REQ_FSEQ_DATA) &&

	    !(policy & (REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH))) {

		list_add(&rq->queuelist, &q->queue_head);

		list_add_tail(&rq->queuelist, &q->queue_head);

		return;

	}