mm: memcontrol: replace zone summing with lruvec_page_state()

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Instead of adding up the zone counters, use lruvec_page_state() to get the
node state directly.  This is a bit cheaper and more stream-lined.

Link: http://lkml.kernel.org/r/20190228163020.24100-3-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Roman Gushchin <guro@fb.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Johannes Weiner 2019-05-13 17:18:00 -07:00 • committed by Linus Torvalds

parent e0ee0e7107

commit 1a61ab8038

3 changed files with 2 additions and 20 deletions

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18

include/linux/memcontrol.h

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2

mm/memcontrol.c

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2

mm/vmscan.c

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