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Date:   Wed, 31 Mar 2021 17:25:34 -0700
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Muchun Song <songmuchun@bytedance.com>
Cc:     Stephen Rothwell <sfr@canb.auug.org.au>,
        Linux Next Mailing List <linux-next@vger.kernel.org>,
        Yang Shi <shy828301@gmail.com>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
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        linux-s390 <linux-s390@vger.kernel.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Michal Hocko <mhocko@kernel.org>, Roman Gushchin <guro@fb.com>,
        Shakeel Butt <shakeelb@google.com>,
        Vladimir Davydov <vdavydov.dev@gmail.com>,
        Xiongchun Duan <duanxiongchun@bytedance.com>
Subject: Re: [External] RE: kernel warning percpu ref in obj_cgroup_release
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On Wed, 31 Mar 2021 22:45:12 +0800 Muchun Song <songmuchun@bytedance.com> wrote:

> 
> Hi Andrew,
> 
> Now we have two choices to fix this issue.
> 
> 1) Send a v6 patchset (Use obj_cgroup APIs to charge kmem pages)
>     to fix this issue.
> 2) Send a separate fix patch (Just like above).
> 
> Both ways are ok for me. But I want to know which one is more
> convenient for you.

Either is OK.  2) is easier.