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memcg: sc.nr_to_reclaim should be initialized 

Currently, mem_cgroup_shrink_node_zone() initialize sc.nr_to_reclaim as 0.
 It mean shrink_zone() only scan 32 pages and immediately return even if
it doesn't reclaim any pages.

This patch fixes it.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Nishimura Daisuke <d-nishimura@mtf.biglobe.ne.jp>
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 2010-08-10 18:03:02 -07:00 committed by Linus Torvalds
parent f75ca96203
commit b8f5c5664d
1 changed files with 1 additions and 0 deletions
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1
mm/vmscan.c
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@ -1972,6 +1972,7 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem,
struct zone *zone, int nid) struct zone *zone, int nid)
{ {
struct scan_control sc = { struct scan_control sc = {
.nr_to_reclaim = SWAP_CLUSTER_MAX,
.may_writepage = !laptop_mode, .may_writepage = !laptop_mode,
.may_unmap = 1, .may_unmap = 1,
.may_swap = !noswap, .may_swap = !noswap,