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Subject[-mm][PATCH 1/5] fix overflow problem of do_try_to_free_page()
this patch is not part of reclaim throttle series.
it is merely hotfixs.

---------------------------------------
"Smarter retry of costly-order allocations" patch series change
behaver of do_try_to_free_pages().
but unfortunately ret variable type unchanged.

thus, overflow problem is possible.



Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
CC: Nishanth Aravamudan <nacc@us.ibm.com>

---
mm/vmscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Index: b/mm/vmscan.c
===================================================================
--- a/mm/vmscan.c 2008-05-03 00:02:52.000000000 +0900
+++ b/mm/vmscan.c 2008-05-03 00:05:08.000000000 +0900
@@ -1317,7 +1317,7 @@ static unsigned long do_try_to_free_page
struct scan_control *sc)
{
int priority;
- int ret = 0;
+ unsigned long ret = 0;
unsigned long total_scanned = 0;
unsigned long nr_reclaimed = 0;
struct reclaim_state *reclaim_state = current->reclaim_state;



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