Messages in this thread | | | Date | Tue, 3 Oct 2017 13:50:27 +0100 | From | Roman Gushchin <> | Subject | Re: [v9 2/5] mm: implement mem_cgroup_scan_tasks() for the root memory cgroup |
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On Tue, Oct 03, 2017 at 12:49:39PM +0200, Michal Hocko wrote: > On Wed 27-09-17 14:09:33, Roman Gushchin wrote: > > Implement mem_cgroup_scan_tasks() functionality for the root > > memory cgroup to use this function for looking for a OOM victim > > task in the root memory cgroup by the cgroup-ware OOM killer. > > > > The root memory cgroup should be treated as a leaf cgroup, > > so only tasks which are directly belonging to the root cgroup > > should be iterated over. > > I would only add that this patch doesn't introduce any functionally > visible change because we never trigger oom killer with the root memcg > as the root of the hierarchy. So this is just a preparatory work for > later changes.
Sure, thanks!
> > > Signed-off-by: Roman Gushchin <guro@fb.com> > > Cc: Michal Hocko <mhocko@kernel.org> > > Cc: Vladimir Davydov <vdavydov.dev@gmail.com> > > Cc: Johannes Weiner <hannes@cmpxchg.org> > > Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> > > Cc: David Rientjes <rientjes@google.com> > > Cc: Andrew Morton <akpm@linux-foundation.org> > > Cc: Tejun Heo <tj@kernel.org> > > Cc: kernel-team@fb.com > > Cc: cgroups@vger.kernel.org > > Cc: linux-doc@vger.kernel.org > > Cc: linux-kernel@vger.kernel.org > > Cc: linux-mm@kvack.org > > Acked-by: Michal Hocko <mhocko@suse.com>
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