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-rw-r--r--mm/vmscan.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 79c809895fba..3ff3311447f5 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -13,7 +13,7 @@
13 13
14#include <linux/mm.h> 14#include <linux/mm.h>
15#include <linux/module.h> 15#include <linux/module.h>
16#include <linux/slab.h> 16#include <linux/gfp.h>
17#include <linux/kernel_stat.h> 17#include <linux/kernel_stat.h>
18#include <linux/swap.h> 18#include <linux/swap.h>
19#include <linux/pagemap.h> 19#include <linux/pagemap.h>
@@ -1535,13 +1535,6 @@ static void get_scan_ratio(struct zone *zone, struct scan_control *sc,
1535 unsigned long ap, fp; 1535 unsigned long ap, fp;
1536 struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(zone, sc); 1536 struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(zone, sc);
1537 1537
1538 /* If we have no swap space, do not bother scanning anon pages. */
1539 if (!sc->may_swap || (nr_swap_pages <= 0)) {
1540 percent[0] = 0;
1541 percent[1] = 100;
1542 return;
1543 }
1544
1545 anon = zone_nr_lru_pages(zone, sc, LRU_ACTIVE_ANON) + 1538 anon = zone_nr_lru_pages(zone, sc, LRU_ACTIVE_ANON) +
1546 zone_nr_lru_pages(zone, sc, LRU_INACTIVE_ANON); 1539 zone_nr_lru_pages(zone, sc, LRU_INACTIVE_ANON);
1547 file = zone_nr_lru_pages(zone, sc, LRU_ACTIVE_FILE) + 1540 file = zone_nr_lru_pages(zone, sc, LRU_ACTIVE_FILE) +
@@ -1639,20 +1632,22 @@ static void shrink_zone(int priority, struct zone *zone,
1639 unsigned long nr_reclaimed = sc->nr_reclaimed; 1632 unsigned long nr_reclaimed = sc->nr_reclaimed;
1640 unsigned long nr_to_reclaim = sc->nr_to_reclaim; 1633 unsigned long nr_to_reclaim = sc->nr_to_reclaim;
1641 struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(zone, sc); 1634 struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(zone, sc);
1635 int noswap = 0;
1642 1636
1643 get_scan_ratio(zone, sc, percent); 1637 /* If we have no swap space, do not bother scanning anon pages. */
1638 if (!sc->may_swap || (nr_swap_pages <= 0)) {
1639 noswap = 1;
1640 percent[0] = 0;
1641 percent[1] = 100;
1642 } else
1643 get_scan_ratio(zone, sc, percent);
1644 1644
1645 for_each_evictable_lru(l) { 1645 for_each_evictable_lru(l) {
1646 int file = is_file_lru(l); 1646 int file = is_file_lru(l);
1647 unsigned long scan; 1647 unsigned long scan;
1648 1648
1649 if (percent[file] == 0) {
1650 nr[l] = 0;
1651 continue;
1652 }
1653
1654 scan = zone_nr_lru_pages(zone, sc, l); 1649 scan = zone_nr_lru_pages(zone, sc, l);
1655 if (priority) { 1650 if (priority || noswap) {
1656 scan >>= priority; 1651 scan >>= priority;
1657 scan = (scan * percent[file]) / 100; 1652 scan = (scan * percent[file]) / 100;
1658 } 1653 }