mm/vmscan: push lruvec pointer into inactive_list_is_low()

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>

1 files changed, 6 insertions, 14 deletions

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a68db296ada6..9d1764630dff 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -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);
 }