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mm/vmscan: push lruvec pointer into inactive_list_is_low()

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Switch mem_cgroup_inactive_anon_is_low() to lruvec pointers,
mem_cgroup_get_lruvec_size() is more effective than
mem_cgroup_zone_nr_lru_pages()

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Konstantin Khlebnikov
2012-05-29 15:07:00 -07:00
committed by Linus Torvalds
parent 074291fea8
commit c56d5c7dfe
3 changed files with 32 additions and 38 deletions
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20
mm/memcontrol.c
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@ -1208,19 +1208,15 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *memcg)
return ret;
}
int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg, struct zone *zone)
int mem_cgroup_inactive_anon_is_low(struct lruvec *lruvec)
{
unsigned long inactive_ratio;
int nid = zone_to_nid(zone);
int zid = zone_idx(zone);
unsigned long inactive;
unsigned long active;
unsigned long gb;
inactive = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
BIT(LRU_INACTIVE_ANON));
active = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
BIT(LRU_ACTIVE_ANON));
inactive = mem_cgroup_get_lruvec_size(lruvec, LRU_INACTIVE_ANON);
active = mem_cgroup_get_lruvec_size(lruvec, LRU_ACTIVE_ANON);
gb = (inactive + active) >> (30 - PAGE_SHIFT);
if (gb)
@ -1231,17 +1227,13 @@ int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg, struct zone *zone)
return inactive * inactive_ratio < active;
}
int mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg, struct zone *zone)
int mem_cgroup_inactive_file_is_low(struct lruvec *lruvec)
{
unsigned long active;
unsigned long inactive;
int zid = zone_idx(zone);
int nid = zone_to_nid(zone);
inactive = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
BIT(LRU_INACTIVE_FILE));
active = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
BIT(LRU_ACTIVE_FILE));
inactive = mem_cgroup_get_lruvec_size(lruvec, LRU_INACTIVE_FILE);
active = mem_cgroup_get_lruvec_size(lruvec, LRU_ACTIVE_FILE);
return (active > inactive);
}