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    SubjectRe: [v11 2/6] mm: implement mem_cgroup_scan_tasks() for the root memory cgroup
    On Thu, 5 Oct 2017, 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 <guro@fb.com>

    Acked-by: David Rientjes <rientjes@google.com>

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