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

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Message-ID: <CALvZod68HooK_bnaxFLEBL_neVybVRECkHJyb6r8LHWqwTOe5Q@mail.gmail.com>
Date:   Thu, 29 Oct 2020 09:18:45 -0700
From:   Shakeel Butt <shakeelb@...gle.com>
To:     Muchun Song <songmuchun@...edance.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 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..."