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mm: memcontrol: re-use node VM page state enum

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The current duplication is a high-maintenance mess, and it's painful to
add new items or query memcg state from the rest of the VM.

This increases the size of the stat array marginally, but we should aim
to track all these stats on a per-cgroup level anyway.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Johannes Weiner <[email protected]>
Acked-by: Vladimir Davydov <[email protected]>
Cc: Michal Hocko <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Johannes Weiner 2017-05-03 14:55:13 -07:00 • committed by Linus Torvalds
commit 71cd31135d
6 changed files with 123 additions and 138 deletions
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5
mm/vmscan.c
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@ -2046,8 +2046,7 @@ static bool inactive_list_is_low(struct lruvec *lruvec, bool file,
active = lruvec_lru_size(lruvec, active_lru, sc->reclaim_idx);
if (memcg)
refaults = mem_cgroup_read_stat(memcg,
MEMCG_WORKINGSET_ACTIVATE);
refaults = mem_cgroup_read_stat(memcg, WORKINGSET_ACTIVATE);
else
refaults = node_page_state(pgdat, WORKINGSET_ACTIVATE);
@ -2735,7 +2734,7 @@ static void snapshot_refaults(struct mem_cgroup *root_memcg, pg_data_t *pgdat)
if (memcg)
refaults = mem_cgroup_read_stat(memcg,
MEMCG_WORKINGSET_ACTIVATE);
WORKINGSET_ACTIVATE);
else
refaults = node_page_state(pgdat, WORKINGSET_ACTIVATE);