On Fri, Jun 02, 2017 at 02:54:01PM -0700, Shaohua Li wrote: > @@ -691,6 +691,8 @@ static inline bool blkcg_bio_issue_check(struct request_queue *q, > rcu_read_lock(); > blkcg = bio_blkcg(bio); > > + bio_associate_blkcg(bio, &blkcg->css); > + Let's please note that this only established the fallback mapping when the bio hasn't been associated yet and doesn't override the existing association. Thanks. -- tejun
