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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>
This commit is contained in:
KOSAKI Motohiro 2009-01-06 14:39:42 -08:00 committed by Linus Torvalds
parent b962716b45
commit 077cbc5864
1 changed files with 2 additions and 1 deletions
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3
mm/vmscan.c
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@ -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 * This helps balance scan pressure between file and anonymous
* pages in get_scan_ratio. * 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. * Move the pages to the [file or anon] inactive list.