The commit 513616843d73 ("block: remove superfluous calls to
blkcg_bio_issue_init") has removed blkcg_bio_issue_init from
__bio_clone since submit_bio will override ->bi_issue.
However, __blk_queue_split is called after blkcg_bio_issue_init
(see blk_mq_submit_bio) in submit_bio. In this case, the
->bi_issue is 0. Fix it.
Fixes: 513616843d73 ("block: remove superfluous calls to blkcg_bio_issue_init")
Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
---
block/blk-merge.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 5abf5aa5a5f0..a5bfe7f18f42 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -355,6 +355,7 @@ void __blk_queue_split(struct request_queue *q, struct bio **bio,
/* there isn't chance to merge the splitted bio */
split->bi_opf |= REQ_NOMERGE;
+ blkcg_bio_issue_init(split);
bio_chain(split, *bio);
trace_block_split(split, (*bio)->bi_iter.bi_sector);
submit_bio_noacct(*bio);
--
2.11.0
