linux-kernel - Re: [PATCH] cgroup: minor tweak for logic to get cgroup css

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Message-ID: <20190708164243.GE657710@devbig004.ftw2.facebook.com>
Date:   Mon, 8 Jul 2019 09:42:43 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Peng Wang <rocking@....edu.cn>
Cc:     lizefan@...wei.com, hannes@...xchg.org, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cgroup: minor tweak for logic to get cgroup css

On Wed, Jul 03, 2019 at 10:07:49AM +0800, Peng Wang wrote:
> We could only handle the case that css exists
> and css_try_get_online() fails.

As css_tryget_online() can't handle NULL input, this is a bug fix.
Can you please clarify that in the description?

Thanks.

-- 
tejun