linux-kernel - Re: [PATCH v13 6/7] mm, oom, docs: describe the cgroup-aware OOM killer

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Message-ID: <20171201084154.l7i3fxtxd4fzrq7s@dhcp22.suse.cz>
Date:   Fri, 1 Dec 2017 09:41:54 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Roman Gushchin <guro@...com>
Cc:     linux-mm@...r.kernel.org, Johannes Weiner <hannes@...xchg.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Rientjes <rientjes@...gle.com>,
        Tejun Heo <tj@...nel.org>, kernel-team@...com,
        cgroups@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v13 6/7] mm, oom, docs: describe the cgroup-aware OOM
 killer

On Thu 30-11-17 15:28:23, Roman Gushchin wrote:
> @@ -1229,6 +1252,41 @@ to be accessed repeatedly by other cgroups, it may make sense to use
>  POSIX_FADV_DONTNEED to relinquish the ownership of memory areas
>  belonging to the affected files to ensure correct memory ownership.
>  
> +OOM Killer
> +~~~~~~~~~~
> +
> +Cgroup v2 memory controller implements a cgroup-aware OOM killer.
> +It means that it treats cgroups as first class OOM entities.

This should mention groupoom mount option to enable this functionality.

Other than that looks ok to me
Acked-by: Michal Hocko <mhocko@...e.com>
-- 
Michal Hocko
SUSE Labs