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authorChristoph Hellwig <hch@lst.de>2020-06-27 09:31:55 +0200
committerJens Axboe <axboe@kernel.dk>2020-06-29 09:09:08 -0600
commit81630e27fff3dc1ccbf64ecb48a70170d7071545 (patch)
treec1b579d89bee2c2250897649177b2c6492e1cf40 /include
parent13c7863d48c160152c42c62700a722293bddeca4 (diff)
blk-cgroup: remove the !bio->bi_blkg check in blkcg_bio_issue_check
This is purely a sanity check for grave programming errors. Remove it to simplify further work in this area. Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/blk-cgroup.h15
1 files changed, 1 insertions, 14 deletions
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 60df97202314..8e86b598316c 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -543,24 +543,11 @@ static inline void blkcg_bio_issue_init(struct bio *bio)
static inline bool blkcg_bio_issue_check(struct request_queue *q,
struct bio *bio)
{
- struct blkcg_gq *blkg;
+ struct blkcg_gq *blkg = bio->bi_blkg;
bool throtl = false;
rcu_read_lock();
-
- if (!bio->bi_blkg) {
- char b[BDEVNAME_SIZE];
-
- WARN_ONCE(1,
- "no blkg associated for bio on block-device: %s\n",
- bio_devname(bio, b));
- bio_associate_blkg(bio);
- }
-
- blkg = bio->bi_blkg;
-
throtl = blk_throtl_bio(q, blkg, bio);
-
if (!throtl) {
struct blkg_iostat_set *bis;
int rwd, cpu;