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From: Shakeel Butt <shakeelb@google.com>
Date: Mon, 2 Oct 2017 13:20:20 -0700
Message-ID: <CALvZod4dVOJr6By9XPSqxHM_fEAQnRd5TTN6vkFoYJ2MMYA_aQ@mail.gmail.com>
Subject: Re: [v8 0/4] cgroup-aware OOM killer
To: Tim Hockin <thockin@hockin.org>
Cc: Michal Hocko <mhocko@kernel.org>, Roman Gushchin <guro@fb.com>,
        Johannes Weiner <hannes@cmpxchg.org>, Tejun Heo <tj@kernel.org>,
        kernel-team@fb.com, David Rientjes <rientjes@google.com>,
        Linux MM <linux-mm@kvack.org>,
        Vladimir Davydov <vdavydov.dev@gmail.com>,
        Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
        Andrew Morton <akpm@linux-foundation.org>,
        Cgroups <cgroups@vger.kernel.org>, linux-doc@vger.kernel.org,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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(Replying again as format of previous reply got messed up).

On Mon, Oct 2, 2017 at 1:00 PM, Tim Hockin <thockin@hockin.org> wrote:
> In the example above:
>
>        root
>        /    \
>      A      D
>      / \
>    B   C
>
> Does oom_group allow me to express "compare A and D; if A is chosen
> compare B and C; kill the loser" ?  As I understand the proposal (from
> reading thread, not patch) it does not.

It will let you compare A and D and if A is chosen then kill A, B and C.