[PATCH 4/5] dm: remove useless code from dm_dispatch_clone_request
From: Christoph Hellwig <hch@lst.de>
Date: 2022-02-15 10:05:57
Also in:
dm-devel
Subsystem:
device-mapper (lvm), the rest · Maintainers:
Alasdair Kergon, Mike Snitzer, Mikulas Patocka, Benjamin Marzinski, Linus Torvalds
Both ->start_time_ns and the RQF_IO_STAT are set when the request is allocated using blk_mq_alloc_request by dm-mpath in blk_mq_rq_ctx_init. The block layer also ensures ->start_time_ns is only set when actually needed. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/md/dm-rq.c | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 2fcc9b7f391b3..8f6117342d322 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c@@ -307,10 +307,6 @@ static blk_status_t dm_dispatch_clone_request(struct request *clone, struct requ { blk_status_t r; - if (blk_queue_io_stat(clone->q)) - clone->rq_flags |= RQF_IO_STAT; - - clone->start_time_ns = ktime_get_ns(); r = blk_insert_cloned_request(clone); if (r != BLK_STS_OK && r != BLK_STS_RESOURCE && r != BLK_STS_DEV_RESOURCE) /* must complete clone in terms of original request */
--
2.30.2