[PATCH] Use ZVC for free_pages

[deliverable/linux.git] / mm / vmstat.c

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 5462106725d719de129ec92ec5d8bd977cad6a29..2386716f1754ed0867a9f6430dc3b7acd75ce8b7 100644 (file)
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -16,30 +16,17 @@
 void __get_zone_counts(unsigned long *active, unsigned long *inactive,
                        unsigned long *free, struct pglist_data *pgdat)
 {
-       struct zone *zones = pgdat->node_zones;
-       int i;
-
        *active = node_page_state(pgdat->node_id, NR_ACTIVE);
        *inactive = node_page_state(pgdat->node_id, NR_INACTIVE);
-       *free = 0;
-       for (i = 0; i < MAX_NR_ZONES; i++) {
-               *free += zones[i].free_pages;
-       }
+       *free = node_page_state(pgdat->node_id, NR_FREE_PAGES);
 }
 
 void get_zone_counts(unsigned long *active,
                unsigned long *inactive, unsigned long *free)
 {
-       struct pglist_data *pgdat;
-
        *active = global_page_state(NR_ACTIVE);
        *inactive = global_page_state(NR_INACTIVE);
-       *free = 0;
-       for_each_online_pgdat(pgdat) {
-               unsigned long l, m, n;
-               __get_zone_counts(&l, &m, &n, pgdat);
-               *free += n;
-       }
+       *free = global_page_state(NR_FREE_PAGES);
 }
 
 #ifdef CONFIG_VM_EVENT_COUNTERS
@@ -454,6 +441,7 @@ const struct seq_operations fragmentation_op = {
 
 static const char * const vmstat_text[] = {
        /* Zoned VM counters */
+       "nr_free_pages",
        "nr_active",
        "nr_inactive",
        "nr_anon_pages",
@@ -534,7 +522,7 @@ static int zoneinfo_show(struct seq_file *m, void *arg)
                           "\n        scanned  %lu (a: %lu i: %lu)"
                           "\n        spanned  %lu"
                           "\n        present  %lu",
-                          zone->free_pages,
+                          zone_page_state(zone, NR_FREE_PAGES),
                           zone->pages_min,
                           zone->pages_low,
                           zone->pages_high,