Re: [PATCH 08/11] block: always attach cgroup info into bio
From: Tejun Heo <tj@kernel.org>
Date: 2017-06-12 18:49:09
Also in:
lkml
On Fri, Jun 02, 2017 at 02:54:01PM -0700, Shaohua Li wrote:
quoted hunk ↗ jump to hunk
@@ -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