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SubjectRe: [PATCH] mm: memcontrol: fix forget to obtain the ref to objcg in split_page_memcg
On Wed, Mar 31, 2021 at 8:02 PM Muchun Song <songmuchun@bytedance.com> wrote:
>
> Christian Borntraeger reported a warning about "percpu ref
> (obj_cgroup_release) <= 0 (-1) after switching to atomic".
> Because we forgot to obtain the reference to the objcg and
> wrongly obtain the reference of memcg.
>
> Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
> Signed-off-by: Muchun Song <songmuchun@bytedance.com>

Looks good to me.

Reviewed-by: Shakeel Butt <shakeelb@google.com>

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