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authorChristoph Hellwig <hch@lst.de>2023-04-13 08:40:38 +0200
committerJens Axboe <axboe@kernel.dk>2023-04-13 14:52:29 +0200
commit50947d7fe9fa6abe3ddc40769dfb02a51c58edb6 (patch)
tree9cf4d97ef0e56ca3512ef6821558acb7c9f01ce7 /block/blk-mq.c
parentblk-throttle: only enable blk-stat when BLK_DEV_THROTTLING_LOW (diff)
downloadlinux-50947d7fe9fa6abe3ddc40769dfb02a51c58edb6.tar.xz
linux-50947d7fe9fa6abe3ddc40769dfb02a51c58edb6.zip
blk-mq: don't plug for head insertions in blk_execute_rq_nowait
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>
Diffstat (limited to '')
-rw-r--r--block/blk-mq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 52f8e0099c7f..7908d19f1408 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1299,7 +1299,7 @@ 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);