Re: [PATCH V3 09/12] block: always attach cgroup info into bio

[Tejun Heo]

On Thu, Jun 15, 2017 at 11:17:17AM -0700, Shaohua Li wrote:
> From: Shaohua Li <shli@xxxxxx>
> 
> blkcg_bio_issue_check() already gets blkcg for a BIO.
> bio_associate_blkcg() uses a percpu refcounter, so it's a very cheap
> operation. There is no point we don't attach the cgroup info into bio at
> blkcg_bio_issue_check. This also makes blktrace outputs correct cgroup
> info.
> 
> Signed-off-by: Shaohua Li <shli@xxxxxx>

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

-- 
tejun