diff options
Diffstat (limited to 'mm/vmscan.c')
-rw-r--r-- | mm/vmscan.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 9a27c44aa327..56ddf41149eb 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c | |||
@@ -1262,7 +1262,6 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, | |||
1262 | * Move the pages to the [file or anon] inactive list. | 1262 | * Move the pages to the [file or anon] inactive list. |
1263 | */ | 1263 | */ |
1264 | pagevec_init(&pvec, 1); | 1264 | pagevec_init(&pvec, 1); |
1265 | pgmoved = 0; | ||
1266 | lru = LRU_BASE + file * LRU_FILE; | 1265 | lru = LRU_BASE + file * LRU_FILE; |
1267 | 1266 | ||
1268 | spin_lock_irq(&zone->lru_lock); | 1267 | spin_lock_irq(&zone->lru_lock); |
@@ -1274,6 +1273,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, | |||
1274 | */ | 1273 | */ |
1275 | reclaim_stat->recent_rotated[!!file] += pgmoved; | 1274 | reclaim_stat->recent_rotated[!!file] += pgmoved; |
1276 | 1275 | ||
1276 | pgmoved = 0; | ||
1277 | while (!list_empty(&l_inactive)) { | 1277 | while (!list_empty(&l_inactive)) { |
1278 | page = lru_to_page(&l_inactive); | 1278 | page = lru_to_page(&l_inactive); |
1279 | prefetchw_prev_lru_page(page, &l_inactive, flags); | 1279 | prefetchw_prev_lru_page(page, &l_inactive, flags); |
@@ -1469,7 +1469,7 @@ static void shrink_zone(int priority, struct zone *zone, | |||
1469 | int file = is_file_lru(l); | 1469 | int file = is_file_lru(l); |
1470 | int scan; | 1470 | int scan; |
1471 | 1471 | ||
1472 | scan = zone_page_state(zone, NR_LRU_BASE + l); | 1472 | scan = zone_nr_pages(zone, sc, l); |
1473 | if (priority) { | 1473 | if (priority) { |
1474 | scan >>= priority; | 1474 | scan >>= priority; |
1475 | scan = (scan * percent[file]) / 100; | 1475 | scan = (scan * percent[file]) / 100; |
@@ -2057,31 +2057,31 @@ static unsigned long shrink_all_zones(unsigned long nr_pages, int prio, | |||
2057 | int pass, struct scan_control *sc) | 2057 | int pass, struct scan_control *sc) |
2058 | { | 2058 | { |
2059 | struct zone *zone; | 2059 | struct zone *zone; |
2060 | unsigned long nr_to_scan, ret = 0; | 2060 | unsigned long ret = 0; |
2061 | enum lru_list l; | ||
2062 | 2061 | ||
2063 | for_each_zone(zone) { | 2062 | for_each_zone(zone) { |
2063 | enum lru_list l; | ||
2064 | 2064 | ||
2065 | if (!populated_zone(zone)) | 2065 | if (!populated_zone(zone)) |
2066 | continue; | 2066 | continue; |
2067 | |||
2068 | if (zone_is_all_unreclaimable(zone) && prio != DEF_PRIORITY) | 2067 | if (zone_is_all_unreclaimable(zone) && prio != DEF_PRIORITY) |
2069 | continue; | 2068 | continue; |
2070 | 2069 | ||
2071 | for_each_evictable_lru(l) { | 2070 | for_each_evictable_lru(l) { |
2071 | enum zone_stat_item ls = NR_LRU_BASE + l; | ||
2072 | unsigned long lru_pages = zone_page_state(zone, ls); | ||
2073 | |||
2072 | /* For pass = 0, we don't shrink the active list */ | 2074 | /* For pass = 0, we don't shrink the active list */ |
2073 | if (pass == 0 && | 2075 | if (pass == 0 && (l == LRU_ACTIVE_ANON || |
2074 | (l == LRU_ACTIVE || l == LRU_ACTIVE_FILE)) | 2076 | l == LRU_ACTIVE_FILE)) |
2075 | continue; | 2077 | continue; |
2076 | 2078 | ||
2077 | zone->lru[l].nr_scan += | 2079 | zone->lru[l].nr_scan += (lru_pages >> prio) + 1; |
2078 | (zone_page_state(zone, NR_LRU_BASE + l) | ||
2079 | >> prio) + 1; | ||
2080 | if (zone->lru[l].nr_scan >= nr_pages || pass > 3) { | 2080 | if (zone->lru[l].nr_scan >= nr_pages || pass > 3) { |
2081 | unsigned long nr_to_scan; | ||
2082 | |||
2081 | zone->lru[l].nr_scan = 0; | 2083 | zone->lru[l].nr_scan = 0; |
2082 | nr_to_scan = min(nr_pages, | 2084 | nr_to_scan = min(nr_pages, lru_pages); |
2083 | zone_page_state(zone, | ||
2084 | NR_LRU_BASE + l)); | ||
2085 | ret += shrink_list(l, nr_to_scan, zone, | 2085 | ret += shrink_list(l, nr_to_scan, zone, |
2086 | sc, prio); | 2086 | sc, prio); |
2087 | if (ret >= nr_pages) | 2087 | if (ret >= nr_pages) |
@@ -2089,7 +2089,6 @@ static unsigned long shrink_all_zones(unsigned long nr_pages, int prio, | |||
2089 | } | 2089 | } |
2090 | } | 2090 | } |
2091 | } | 2091 | } |
2092 | |||
2093 | return ret; | 2092 | return ret; |
2094 | } | 2093 | } |
2095 | 2094 | ||
@@ -2112,7 +2111,6 @@ unsigned long shrink_all_memory(unsigned long nr_pages) | |||
2112 | .may_swap = 0, | 2111 | .may_swap = 0, |
2113 | .swap_cluster_max = nr_pages, | 2112 | .swap_cluster_max = nr_pages, |
2114 | .may_writepage = 1, | 2113 | .may_writepage = 1, |
2115 | .swappiness = vm_swappiness, | ||
2116 | .isolate_pages = isolate_pages_global, | 2114 | .isolate_pages = isolate_pages_global, |
2117 | }; | 2115 | }; |
2118 | 2116 | ||
@@ -2146,10 +2144,8 @@ unsigned long shrink_all_memory(unsigned long nr_pages) | |||
2146 | int prio; | 2144 | int prio; |
2147 | 2145 | ||
2148 | /* Force reclaiming mapped pages in the passes #3 and #4 */ | 2146 | /* Force reclaiming mapped pages in the passes #3 and #4 */ |
2149 | if (pass > 2) { | 2147 | if (pass > 2) |
2150 | sc.may_swap = 1; | 2148 | sc.may_swap = 1; |
2151 | sc.swappiness = 100; | ||
2152 | } | ||
2153 | 2149 | ||
2154 | for (prio = DEF_PRIORITY; prio >= 0; prio--) { | 2150 | for (prio = DEF_PRIORITY; prio >= 0; prio--) { |
2155 | unsigned long nr_to_scan = nr_pages - ret; | 2151 | unsigned long nr_to_scan = nr_pages - ret; |