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authorChristoph Hellwig <hch@lst.de>2020-06-11 08:44:45 +0200
committerJens Axboe <axboe@kernel.dk>2020-06-24 09:15:57 -0600
commitd6cc464cc58424e137eca5e0a53226291044f5d2 (patch)
treebd3ac889a723a79fa33b682fff8ce9ef9de5810f /block/blk-mq.c
parent6aab1da603e731383b342dbe612f92cd222fe56b (diff)
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>
Diffstat (limited to 'block/blk-mq.c')
-rw-r--r--block/blk-mq.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index ea083f58d9da..eef2f3c7f402 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -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;
}