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authorShakeel Butt <shakeelb@google.com>2017-11-29 16:11:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-29 18:40:43 -0800
commitd08afa149acfd00871484ada6dabc3880524cd1c (patch)
treef0b15abee17ec14b6c04e166bf240fdd514eafbd /fs
parent40a899ed16486455f964e46d1af31fd4fded21c1 (diff)
mm, memcg: fix mem_cgroup_swapout() for THPs
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. Link: http://lkml.kernel.org/r/20171128161941.20931-1-shakeelb@google.com Fixes: d6810d730022 ("memcg, THP, swap: make mem_cgroup_swapout() support THP") Signed-off-by: Shakeel Butt <shakeelb@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Greg Thelen <gthelen@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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