Commit d6cc464c authored Jun 11, 2020 by Christoph Hellwig Committed by Jens Axboe Jun 24, 2020

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: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens 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;
		}

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