Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm

[pandora-kernel.git] / mm / vmstat.c

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 0c3b504..897ea9e 100644 (file)
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -321,9 +321,12 @@ static inline void mod_state(struct zone *zone,
                /*
                 * The fetching of the stat_threshold is racy. We may apply
                 * a counter threshold to the wrong the cpu if we get
-                * rescheduled while executing here. However, the following
-                * will apply the threshold again and therefore bring the
-                * counter under the threshold.
+                * rescheduled while executing here. However, the next
+                * counter update will apply the threshold again and
+                * therefore bring the counter under the threshold again.
+                *
+                * Most of the time the thresholds are the same anyways
+                * for all cpus in a zone.
                 */
                t = this_cpu_read(pcp->stat_threshold);
 
@@ -500,8 +503,12 @@ void refresh_cpu_vm_stats(int cpu)
  * z       = the zone from which the allocation occurred.
  *
  * Must be called with interrupts disabled.
+ *
+ * When __GFP_OTHER_NODE is set assume the node of the preferred
+ * zone is the local node. This is useful for daemons who allocate
+ * memory on behalf of other processes.
  */
-void zone_statistics(struct zone *preferred_zone, struct zone *z)
+void zone_statistics(struct zone *preferred_zone, struct zone *z, gfp_t flags)
 {
        if (z->zone_pgdat == preferred_zone->zone_pgdat) {
                __inc_zone_state(z, NUMA_HIT);
@@ -509,7 +516,8 @@ void zone_statistics(struct zone *preferred_zone, struct zone *z)
                __inc_zone_state(z, NUMA_MISS);
                __inc_zone_state(preferred_zone, NUMA_FOREIGN);
        }
-       if (z->node == numa_node_id())
+       if (z->node == ((flags & __GFP_OTHER_NODE) ?
+                       preferred_zone->node : numa_node_id()))
                __inc_zone_state(z, NUMA_LOCAL);
        else
                __inc_zone_state(z, NUMA_OTHER);
@@ -940,7 +948,16 @@ static const char * const vmstat_text[] = {
        "unevictable_pgs_cleared",
        "unevictable_pgs_stranded",
        "unevictable_pgs_mlockfreed",
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+       "thp_fault_alloc",
+       "thp_fault_fallback",
+       "thp_collapse_alloc",
+       "thp_collapse_alloc_failed",
+       "thp_split",
 #endif
+
+#endif /* CONFIG_VM_EVENTS_COUNTERS */
 };
 
 static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,