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authorShakeel Butt <shakeelb@google.com>2020-08-06 23:26:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 11:33:29 -0700
commit912c05720f00d039103d356a59c37dc7c3995e01 (patch)
treec2ed85d6873228e424b5b0461532aaf0959558bb /net
parent238c30468f46b16d7c22df175da11109346e769c (diff)
downloadlinux-912c05720f00d039103d356a59c37dc7c3995e01.tar.bz2
mm: vmscan: consistent update to pgrefill
The vmstat pgrefill is useful together with pgscan and pgsteal stats to measure the reclaim efficiency. However vmstat's pgrefill is not updated consistently at system level. It gets updated for both global and memcg reclaim however pgscan and pgsteal are updated for only global reclaim. So, update pgrefill only for global reclaim. If someone is interested in the stats representing both system level as well as memcg level reclaim, then consult the root memcg's memory.stat instead of /proc/vmstat. Signed-off-by: Shakeel Butt <shakeelb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Yafang Shao <laoar.shao@gmail.com> Acked-by: Roman Gushchin <guro@fb.com> Acked-by: Chris Down <chris@chrisdown.name> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Link: http://lkml.kernel.org/r/20200711011459.1159929-1-shakeelb@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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