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mem_cgroup_page_lruvec() in memcontrol.c and mem_cgroup_lruvec() in memcontrol.h is very similar except for the param(page and memcg) which also can be convert to each other. So rewrite mem_cgroup_page_lruvec() with mem_cgroup_lruvec(). [alex.shi@linux.alibaba.com: add missed warning in mem_cgroup_lruvec] Link: https://lkml.kernel.org/r/94f17bb7-ec61-5b72-3555-fabeb5a4d73b@linux.alibaba.com [lstoakes@gmail.com: warn on missing memcg on mem_cgroup_page_lruvec()] Link: https://lkml.kernel.org/r/20201125112202.387009-1-lstoakes@gmail.com Link: https://lkml.kernel.org/r/20201108143731.GA74138@rlk Signed-off-by: Hui Su <sh_def@163.com> Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Shakeel Butt <shakeelb@google.com> Acked-by: Roman Gushchin <guro@fb.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Yafang Shao <laoar.shao@gmail.com> Cc: Chris Down <chris@chrisdown.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>