memcg: use correct scan number at reclaim

Even when page reclaim is under mem_cgroup, # of scan page is determined by
status of global LRU. Fix that.

Signed-off-by: KOSAKI Motohiro <[email protected]>
Signed-off-by: KAMEZAWA Hiroyuki <[email protected]>
Cc: Daisuke Nishimura <[email protected]>
Cc: Balbir Singh <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 6177e3bcd66bdc7b8fc74cb583d47bb89c4940ef..e89517141657bb6ecfa4c17cf1aceb8b76be78f6 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1469,7 +1469,7 @@ static void shrink_zone(int priority, struct zone *zone,
                int file = is_file_lru(l);
                int scan;
 
-               scan = zone_page_state(zone, NR_LRU_BASE + l);
+               scan = zone_nr_pages(zone, sc, l);
                if (priority) {
                        scan >>= priority;
                        scan = (scan * percent[file]) / 100;