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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2009-01-08 05:08:19 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-08 19:31:08 +0300
commita3d8e0549d913e30968fa02e505dfe02c0a23e0d (patch)
treee4d3df33666a18614289ae7bc76c27ad7950eb73 /mm
parent14797e2363c2b2f1ce139fd1c5a215e4e05aa1d9 (diff)
downloadlinux-a3d8e0549d913e30968fa02e505dfe02c0a23e0d.tar.xz
memcg: add mem_cgroup_zone_nr_pages()
Introduce mem_cgroup_zone_nr_pages(). It is called by zone_nr_pages() helper function. This patch doesn't have any behavior change. Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Rik van Riel <riel@redhat.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: Balbir Singh <balbir@in.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Hugh Dickins <hugh@veritas.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memcontrol.c12
-rw-r--r--mm/vmscan.c3
2 files changed, 14 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 6611328460e9..313247e6c503 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -186,7 +186,6 @@ pcg_default_flags[NR_CHARGE_TYPE] = {
0, /* FORCE */
};
-
/* for encoding cft->private value on file */
#define _MEM (0)
#define _MEMSWAP (1)
@@ -448,6 +447,17 @@ int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg, struct zone *zone)
return 0;
}
+unsigned long mem_cgroup_zone_nr_pages(struct mem_cgroup *memcg,
+ struct zone *zone,
+ enum lru_list lru)
+{
+ int nid = zone->zone_pgdat->node_id;
+ int zid = zone_idx(zone);
+ struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+
+ return MEM_CGROUP_ZSTAT(mz, lru);
+}
+
unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
struct list_head *dst,
unsigned long *scanned, int order,
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b2bc06bffcfb..d958d624d3ae 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -139,6 +139,9 @@ static struct zone_reclaim_stat *get_reclaim_stat(struct zone *zone,
static unsigned long zone_nr_pages(struct zone *zone, struct scan_control *sc,
enum lru_list lru)
{
+ if (!scan_global_lru(sc))
+ return mem_cgroup_zone_nr_pages(sc->mem_cgroup, zone, lru);
+
return zone_page_state(zone, NR_LRU_BASE + lru);
}