Commit d6cc464c authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

blk-mq: short cut the IPI path in blk_mq_force_complete_rq for !SMP 



Let the compile optimize out the entire IPI path, given that we are
obviously not going to use it.

Reviewed-by: default avatarDaniel Wagner <dwagner@suse.de>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 6aab1da6

block/blk-mq.c

+2 −1
Original line number Diff line number Diff line
@@ -727,7 +727,8 @@ void blk_mq_force_complete_rq(struct request *rq) 
		return;

	}



	if (!test_bit(QUEUE_FLAG_SAME_COMP, &q->queue_flags)) {

	if (!IS_ENABLED(CONFIG_SMP) ||

	    !test_bit(QUEUE_FLAG_SAME_COMP, &q->queue_flags)) {

		q->mq_ops->complete(rq);

		return;

	}