Index: linux-2.6.16-rc1-mm1/mm/vmscan.c
===================================================================
--- linux-2.6.16-rc1-mm1.orig/mm/vmscan.c	2006-01-19 11:18:41.000000000 -0800
+++ linux-2.6.16-rc1-mm1/mm/vmscan.c	2006-01-19 11:42:30.000000000 -0800
@@ -1337,7 +1337,9 @@ shrink_zone(struct zone *zone, struct sc
 		}
 	}
 
-	throttle_vm_writeout();
+	/* If we cannot swap (f.e. zone_reclaim) then there is no need to throttle */
+	if (sc->may_swap)
+		throttle_vm_writeout();
 
 	atomic_dec(&zone->reclaim_in_progress);
 }