From a214b949d8e365583dd67441f6f608f0b20f7f52 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 20 Oct 2021 16:41:16 +0200 Subject: blk-mq: only flush requests from the plug in blk_mq_submit_bio 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 Link: https://lore.kernel.org/r/20211020144119.142582-2-hch@lst.de Signed-off-by: Jens Axboe --- block/blk-mq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'block/blk-mq.c') diff --git a/block/blk-mq.c b/block/blk-mq.c index a71aeed7b987..101466ece4c4 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2568,7 +2568,7 @@ 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); } -- cgit v1.2.3