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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2009-01-06 14:39:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 15:59:04 -0800
commit077cbc5864cd9188fa4c4e181e48ff58317e6400 (patch)
treebcfcdecce7427801451fb8d6fcf5e7648bd2bfb3
parentb962716b459505a8d83aea313fea0abe76749f42 (diff)
memcg: reclaim shouldn't change zone->recent_rotated statistics
memcg reclaim shouldn't change zone->recent_rotated statistics. If memcgroup reclaim changes zone statistics, global reclaim can get a bit confused. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: Rik van Riel <riel@redhat.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/vmscan.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index d500b906746c..da7c3a2304a7 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1246,7 +1246,8 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
* This helps balance scan pressure between file and anonymous
* pages in get_scan_ratio.
*/
- zone->recent_rotated[!!file] += pgmoved;
+ if (scan_global_lru(sc))
+ zone->recent_rotated[!!file] += pgmoved;
/*
* Move the pages to the [file or anon] inactive list.