On Tue, Nov 28, 2017 at 08:19:41AM -0800, Shakeel Butt wrote:
> The commit d6810d730022 ("memcg, THP, swap: make mem_cgroup_swapout()
> support THP") changed mem_cgroup_swapout() to support transparent huge
> page (THP). However the patch missed one location which should be
> changed for correctly handling THPs. The resulting bug will cause the
> memory cgroups whose THPs were swapped out to become zombies on
> deletion.
>
> Fixes: d6810d730022 ("memcg, THP, swap: make mem_cgroup_swapout() support THP")
> Signed-off-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
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