As pointed out by Christop Lameter it should not be possible for a
page to change its active/inactive state without taking the lru_lock.
Reinstate this safety net.
Signed-off-by: Andy Whitcroft <[EMAIL PROTECTED]>
Acked-by: Mel Gorman <[EMAIL PROTECTED]>
---
diff --git a/mm/vmscan.c b/mm/vmscan.c
index bda63a0..d7a0860 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -691,10 +691,13 @@ static unsigned long isolate_lru_pages(unsigned long
nr_to_scan,
nr_taken++;
break;
- default:
- /* page is being freed, or is a missmatch */
+ case -EBUSY:
+ /* else it is being freed elsewhere */
list_move(&page->lru, src);
continue;
+
+ default:
+ BUG();
}
if (!order)
-
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