[PATCH] kswapd warning fix

mm/vmscan.c: In function `kswapd':
mm/vmscan.c:1139: warning: no return statement in function returning non-void
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

mm/vmscan.c

@@ -1097,7 +1097,7 @@ static int balance_pgdat(pg_data_t *pgdat, int nr_pages)
  * If there are applications that are active memory-allocators
  * (most normal use), this basically shouldn't matter.
  */
-int kswapd(void *p)
+static int kswapd(void *p)
 {
 	pg_data_t *pgdat = (pg_data_t*)p;
 	struct task_struct *tsk = current;
@@ -1136,6 +1136,7 @@ int kswapd(void *p)
 
 		balance_pgdat(pgdat, 0);
 	}
+	return 0;
 }
 
 /*