---

yaml
---
r: 356500
b: refs/heads/master
c: dafcb73
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7103f16dbff20fa969c9500902d980d17f953fa6
+refs/heads/master: dafcb73e385e39b9a7ebd5c4ecbc4ae921862eb9

trunk/mm/vmscan.c

@@ -2616,6 +2616,7 @@ static bool prepare_kswapd_sleep(pg_data_t *pgdat, int order, long remaining,
 static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
 							int *classzone_idx)
 {
+	bool pgdat_is_balanced = false;
 	struct zone *unbalanced_zone;
 	int i;
 	int end_zone = 0;	/* Inclusive.  0 = ZONE_DMA */
@@ -2690,8 +2691,11 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
 				zone_clear_flag(zone, ZONE_CONGESTED);
 			}
 		}
-		if (i < 0)
+
+		if (i < 0) {
+			pgdat_is_balanced = true;
 			goto out;
+		}
 
 		for (i = 0; i <= end_zone; i++) {
 			struct zone *zone = pgdat->node_zones + i;
@@ -2818,8 +2822,11 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
 				pfmemalloc_watermark_ok(pgdat))
 			wake_up(&pgdat->pfmemalloc_wait);
 
-		if (pgdat_balanced(pgdat, order, *classzone_idx))
+		if (pgdat_balanced(pgdat, order, *classzone_idx)) {
+			pgdat_is_balanced = true;
 			break;		/* kswapd: all done */
+		}
+
 		/*
 		 * OK, kswapd is getting into trouble.  Take a nap, then take
 		 * another pass across the zones.
@@ -2840,9 +2847,9 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
 		if (sc.nr_reclaimed >= SWAP_CLUSTER_MAX)
 			break;
 	} while (--sc.priority >= 0);
-out:
 
-	if (!pgdat_balanced(pgdat, order, *classzone_idx)) {
+out:
+	if (!pgdat_is_balanced) {
 		cond_resched();
 
 		try_to_freeze();