From: Andrew Morton <akpm@linux-foundation.org>
To: David Rientjes <rientjes@google.com>
Cc: Roman Gushchin <guro@fb.com>, Michal Hocko <mhocko@kernel.org>,
Vladimir Davydov <vdavydov.dev@gmail.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Tejun Heo <tj@kernel.org>,
kernel-team@fb.com, cgroups@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [patch -mm v2 2/3] mm, memcg: replace cgroup aware oom killer mount option with tunable
Date: Thu, 25 Jan 2018 16:00:16 -0800 [thread overview]
Message-ID: <20180125160016.30e019e546125bb13b5b6b4f@linux-foundation.org> (raw)
In-Reply-To: <alpine.DEB.2.10.1801251553030.161808@chino.kir.corp.google.com>
On Thu, 25 Jan 2018 15:53:48 -0800 (PST) David Rientjes <rientjes@google.com> wrote:
> Now that each mem cgroup on the system has a memory.oom_policy tunable to
> specify oom kill selection behavior, remove the needless "groupoom" mount
> option that requires (1) the entire system to be forced, perhaps
> unnecessarily, perhaps unexpectedly, into a single oom policy that
> differs from the traditional per process selection, and (2) a remount to
> change.
>
> Instead of enabling the cgroup aware oom killer with the "groupoom" mount
> option, set the mem cgroup subtree's memory.oom_policy to "cgroup".
Can we retain the groupoom mount option and use its setting to set the
initial value of every memory.oom_policy? That way the mount option
remains somewhat useful and we're back-compatible?
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next prev parent reply other threads:[~2018-01-26 0:00 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-17 2:14 [patch -mm 0/4] mm, memcg: introduce oom policies David Rientjes
2018-01-17 2:15 ` [patch -mm 1/4] mm, memcg: introduce per-memcg oom policy tunable David Rientjes
2018-01-17 2:15 ` [patch -mm 2/4] mm, memcg: replace cgroup aware oom killer mount option with tunable David Rientjes
2018-01-17 2:15 ` [patch -mm 3/4] mm, memcg: replace memory.oom_group with policy tunable David Rientjes
2018-01-17 15:41 ` Tejun Heo
2018-01-17 16:00 ` Michal Hocko
2018-01-17 22:18 ` David Rientjes
2018-01-23 15:13 ` Michal Hocko
2018-01-17 22:14 ` David Rientjes
2018-01-19 20:53 ` David Rientjes
2018-01-20 12:32 ` Tejun Heo
2018-01-22 22:34 ` David Rientjes
2018-01-23 15:53 ` Michal Hocko
2018-01-23 22:22 ` David Rientjes
2018-01-24 8:20 ` Michal Hocko
2018-01-24 21:44 ` David Rientjes
2018-01-24 22:08 ` Andrew Morton
2018-01-24 22:18 ` Tejun Heo
2018-01-25 8:11 ` Michal Hocko
2018-01-25 8:05 ` Michal Hocko
2018-01-25 23:27 ` David Rientjes
2018-01-26 10:07 ` Michal Hocko
2018-01-26 22:33 ` David Rientjes
2018-01-17 2:15 ` [patch -mm 4/4] mm, memcg: add hierarchical usage oom policy David Rientjes
2018-01-17 11:46 ` [patch -mm 0/4] mm, memcg: introduce oom policies Roman Gushchin
2018-01-17 22:31 ` David Rientjes
2018-01-25 23:53 ` [patch -mm v2 0/3] " David Rientjes
2018-01-25 23:53 ` [patch -mm v2 1/3] mm, memcg: introduce per-memcg oom policy tunable David Rientjes
2018-01-26 17:15 ` Michal Hocko
2018-01-29 22:38 ` David Rientjes
2018-01-30 8:50 ` Michal Hocko
2018-01-30 22:38 ` David Rientjes
2018-01-31 9:47 ` Michal Hocko
2018-02-01 10:11 ` David Rientjes
2018-01-25 23:53 ` [patch -mm v2 2/3] mm, memcg: replace cgroup aware oom killer mount option with tunable David Rientjes
2018-01-26 0:00 ` Andrew Morton [this message]
2018-01-26 22:20 ` David Rientjes
2018-01-26 22:39 ` Andrew Morton
2018-01-26 22:52 ` David Rientjes
2018-01-27 0:17 ` Andrew Morton
2018-01-29 10:46 ` Michal Hocko
2018-01-29 19:11 ` Tejun Heo
2018-01-30 8:54 ` Michal Hocko
2018-01-30 11:58 ` Roman Gushchin
2018-01-30 12:08 ` Michal Hocko
2018-01-30 12:13 ` Roman Gushchin
2018-01-30 12:20 ` Michal Hocko
2018-01-30 15:15 ` Tejun Heo
2018-01-30 17:30 ` Johannes Weiner
2018-01-30 19:39 ` Andrew Morton
2018-01-29 22:16 ` David Rientjes
2018-01-25 23:53 ` [patch -mm v2 3/3] mm, memcg: add hierarchical usage oom policy David Rientjes
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