On Wed, Oct 04, 2017 at 04:46:34PM +0100, 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 is treated as a leaf cgroup, so only tasks > which are directly belonging to the root cgroup are iterated over. > > This patch doesn't introduce any functional change as > mem_cgroup_scan_tasks() is never called for the root memcg. > This is preparatory work for the cgroup-aware OOM killer, > which will use this function to iterate over tasks belonging > to the root memcg. > > Signed-off-by: Roman Gushchin <g...@fb.com> > Acked-by: Michal Hocko <mho...@suse.com> > Cc: Vladimir Davydov <vdavydov....@gmail.com> > Cc: Johannes Weiner <han...@cmpxchg.org> > Cc: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> > Cc: David Rientjes <rient...@google.com> > Cc: Andrew Morton <a...@linux-foundation.org> > Cc: Tejun Heo <t...@kernel.org> > Cc: kernel-t...@fb.com > Cc: cgro...@vger.kernel.org > Cc: linux-...@vger.kernel.org > Cc: linux-kernel@vger.kernel.org > Cc: linux...@kvack.org
Acked-by: Johannes Weiner <han...@cmpxchg.org>
