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| author | Christoph Hellwig <hch@lst.de> | 2023-04-13 09:40:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-11 17:03:22 +0300 |
| commit | 6aa401a654fdf2cbff7a0b6aead36069eecc1a15 (patch) | |
| tree | ee5d89cd513b151a0c2dcb0a2772e06ab2a18582 | |
| parent | 3c0b7993461a75e8698619af9417ea4da98014c8 (diff) | |
| download | linux-6aa401a654fdf2cbff7a0b6aead36069eecc1a15.tar.xz | |
blk-mq: don't plug for head insertions in blk_execute_rq_nowait
[ Upstream commit 50947d7fe9fa6abe3ddc40769dfb02a51c58edb6 ]
Plugs never insert at head, so don't plug for head insertions.
Fixes: 1c2d2fff6dc0 ("block: wire-up support for passthrough plugging")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230413064057.707578-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | block/blk-mq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index b3ebf604b1dd..1ab41fbca094 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1313,7 +1313,7 @@ void blk_execute_rq_nowait(struct request *rq, bool at_head) * device, directly accessing the plug instead of using blk_mq_plug() * should not have any consequences. */ - if (current->plug) + if (current->plug && !at_head) blk_add_rq_to_plug(current->plug, rq); else blk_mq_sched_insert_request(rq, at_head, true, false); |