Replace the call to blk_flush_plug_list in blk_mq_submit_bio with a
direct call to blk_mq_flush_plug_list. This means we do not flush
plug callback from stackable devices, which doesn't really help with
the accumulated requests anyway, and it also means the cached requests
aren't freed here as they can still be used later on.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
block/blk-mq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 31d9e612d2360..9bb6ece419a5b 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2571,7 +2571,7 @@ void blk_mq_submit_bio(struct bio *bio)
}
if (request_count >= blk_plug_max_rq_count(plug) || last) {
- blk_flush_plug_list(plug, false);
+ blk_mq_flush_plug_list(plug, false);
trace_block_plug(q);
}
--
2.30.2
