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mm/vmscan: replace zone_nr_lru_pages() with get_lruvec_size()

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If memory cgroup is enabled we always use lruvecs which are embedded into
struct mem_cgroup_per_zone, so we can reach lru_size counters via
container_of().

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 27ac81d85e
commit 074291fea8
3 changed files with 27 additions and 19 deletions
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9
mm/memcontrol.c
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@@ -723,6 +723,15 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
}
unsigned long
mem_cgroup_get_lruvec_size(struct lruvec *lruvec, enum lru_list lru)
{
struct mem_cgroup_per_zone *mz;
mz = container_of(lruvec, struct mem_cgroup_per_zone, lruvec);
return mz->lru_size[lru];
}
static unsigned long
mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
unsigned int lru_mask)
{