linux-kernel - Re: [External] Re: [PATCH v3] mm: memcontrol: Add the missing numa

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Message-ID: <CAMZfGtVBFCodKuNKzG8TxKjeuC1_hF_YKdqMTmX5ENE_FfDmzw@mail.gmail.com>
Date:   Mon, 14 Sep 2020 11:10:24 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     Chris Down <chris@...isdown.name>
Cc:     tj@...nel.org, lizefan@...wei.com,
        Johannes Weiner <hannes@...xchg.org>, corbet@....net,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Roman Gushchin <guro@...com>,
        Cgroups <cgroups@...r.kernel.org>, linux-doc@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        kernel test robot <lkp@...el.com>
Subject: Re: [External] Re: [PATCH v3] mm: memcontrol: Add the missing
 numa_stat interface for cgroup v2

On Mon, Sep 14, 2020 at 1:09 AM Chris Down <chris@...isdown.name> wrote:
>
> Muchun Song writes:
> >In the cgroup v1, we have a numa_stat interface. This is useful for
> >providing visibility into the numa locality information within an
> >memcg since the pages are allowed to be allocated from any physical
> >node. One of the use cases is evaluating application performance by
> >combining this information with the application's CPU allocation.
> >But the cgroup v2 does not. So this patch adds the missing information.
> >
> >Signed-off-by: Muchun Song <songmuchun@...edance.com>
> >Suggested-by: Shakeel Butt <shakeelb@...gle.com>
> >Reported-by: kernel test robot <lkp@...el.com>
>
> This is a feature patch, why does this have LKP's Reported-by?

In the v2 version, the kernel test robot reported a compiler error
on the powerpc architecture. So I added that. Thanks.

-- 
Yours,
Muchun