linux-kernel - Re: [External] Re: [PATCH v2] mm: memcg/slab: Fix return child memcg objcg for root memcg

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Message-ID: <CAMZfGtUCXAzvjQ60VUEdOj1OocqUxGNZkikr-Lch2w-dkmQTwg@mail.gmail.com>
Date:   Fri, 30 Oct 2020 00:32:26 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     Shakeel Butt <shakeelb@...gle.com>
Cc:     Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Roman Gushchin <guro@...com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Yafang Shao <laoar.shao@...il.com>,
        Chris Down <chris@...isdown.name>,
        Christian Brauner <christian.brauner@...ntu.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Thomas Gleixner <tglx@...utronix.de>, esyr@...hat.com,
        Suren Baghdasaryan <surenb@...gle.com>, areber@...hat.com,
        Marco Elver <elver@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Cgroups <cgroups@...r.kernel.org>, Linux MM <linux-mm@...ck.org>
Subject: Re: [External] Re: [PATCH v2] mm: memcg/slab: Fix return child memcg
 objcg for root memcg

On Fri, Oct 30, 2020 at 12:18 AM Shakeel Butt <shakeelb@...gle.com> wrote:
>
> On Thu, Oct 29, 2020 at 9:09 AM Muchun Song <songmuchun@...edance.com> wrote:
> >
> > On Thu, Oct 29, 2020 at 11:48 PM Shakeel Butt <shakeelb@...gle.com> wrote:
> > >
> > > On Tue, Oct 27, 2020 at 8:50 PM Muchun Song <songmuchun@...edance.com> wrote:
> > > >
> > > > Consider the following memcg hierarchy.
> > > >
> > > >                     root
> > > >                    /    \
> > > >                   A      B
> > > >
> > > > If we get the objcg of memcg A failed,
> > >
> > > Please fix the above statement.
> >
> > Sorry, could you be more specific, I don't quite understand.
>
> Fix the grammar. Something like "If we failed to get the reference on
> objcg of memcg A..."

Got it. Sorry for my poor English, Thanks.

-- 
Yours,
Muchun