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-rw-r--r--mm/vmscan.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 5faa7739487f..13f050d667e9 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1410,6 +1410,8 @@ static void shrink_zone(int priority, struct zone *zone,
1410 unsigned long nr_to_scan; 1410 unsigned long nr_to_scan;
1411 unsigned long percent[2]; /* anon @ 0; file @ 1 */ 1411 unsigned long percent[2]; /* anon @ 0; file @ 1 */
1412 enum lru_list l; 1412 enum lru_list l;
1413 unsigned long nr_reclaimed = sc->nr_reclaimed;
1414 unsigned long swap_cluster_max = sc->swap_cluster_max;
1413 1415
1414 get_scan_ratio(zone, sc, percent); 1416 get_scan_ratio(zone, sc, percent);
1415 1417
@@ -1425,7 +1427,7 @@ static void shrink_zone(int priority, struct zone *zone,
1425 } 1427 }
1426 zone->lru[l].nr_scan += scan; 1428 zone->lru[l].nr_scan += scan;
1427 nr[l] = zone->lru[l].nr_scan; 1429 nr[l] = zone->lru[l].nr_scan;
1428 if (nr[l] >= sc->swap_cluster_max) 1430 if (nr[l] >= swap_cluster_max)
1429 zone->lru[l].nr_scan = 0; 1431 zone->lru[l].nr_scan = 0;
1430 else 1432 else
1431 nr[l] = 0; 1433 nr[l] = 0;
@@ -1444,12 +1446,11 @@ static void shrink_zone(int priority, struct zone *zone,
1444 nr[LRU_INACTIVE_FILE]) { 1446 nr[LRU_INACTIVE_FILE]) {
1445 for_each_evictable_lru(l) { 1447 for_each_evictable_lru(l) {
1446 if (nr[l]) { 1448 if (nr[l]) {
1447 nr_to_scan = min(nr[l], 1449 nr_to_scan = min(nr[l], swap_cluster_max);
1448 (unsigned long)sc->swap_cluster_max);
1449 nr[l] -= nr_to_scan; 1450 nr[l] -= nr_to_scan;
1450 1451
1451 sc->nr_reclaimed += shrink_list(l, nr_to_scan, 1452 nr_reclaimed += shrink_list(l, nr_to_scan,
1452 zone, sc, priority); 1453 zone, sc, priority);
1453 } 1454 }
1454 } 1455 }
1455 /* 1456 /*
@@ -1460,11 +1461,13 @@ static void shrink_zone(int priority, struct zone *zone,
1460 * with multiple processes reclaiming pages, the total 1461 * with multiple processes reclaiming pages, the total
1461 * freeing target can get unreasonably large. 1462 * freeing target can get unreasonably large.
1462 */ 1463 */
1463 if (sc->nr_reclaimed > sc->swap_cluster_max && 1464 if (nr_reclaimed > swap_cluster_max &&
1464 priority < DEF_PRIORITY && !current_is_kswapd()) 1465 priority < DEF_PRIORITY && !current_is_kswapd())
1465 break; 1466 break;
1466 } 1467 }
1467 1468
1469 sc->nr_reclaimed = nr_reclaimed;
1470
1468 /* 1471 /*
1469 * Even if we did not try to evict anon pages at all, we want to 1472 * Even if we did not try to evict anon pages at all, we want to
1470 * rebalance the anon lru active/inactive ratio. 1473 * rebalance the anon lru active/inactive ratio.