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Diffstat (limited to 'mm/vmstat.c')
-rw-r--r--mm/vmstat.c73
1 files changed, 47 insertions, 26 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 06a6d105219..ee7f8966625 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -185,9 +185,8 @@ EXPORT_SYMBOL(mod_zone_page_state);
* in between and therefore the atomicity vs. interrupt cannot be exploited
* in a useful way here.
*/
-void __inc_zone_page_state(struct page *page, enum zone_stat_item item)
+static void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
{
- struct zone *zone = page_zone(page);
s8 *p = diff_pointer(zone, item);
(*p)++;
@@ -197,6 +196,11 @@ void __inc_zone_page_state(struct page *page, enum zone_stat_item item)
*p = 0;
}
}
+
+void __inc_zone_page_state(struct page *page, enum zone_stat_item item)
+{
+ __inc_zone_state(page_zone(page), item);
+}
EXPORT_SYMBOL(__inc_zone_page_state);
void __dec_zone_page_state(struct page *page, enum zone_stat_item item)
@@ -213,22 +217,23 @@ void __dec_zone_page_state(struct page *page, enum zone_stat_item item)
}
EXPORT_SYMBOL(__dec_zone_page_state);
+void inc_zone_state(struct zone *zone, enum zone_stat_item item)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ __inc_zone_state(zone, item);
+ local_irq_restore(flags);
+}
+
void inc_zone_page_state(struct page *page, enum zone_stat_item item)
{
unsigned long flags;
struct zone *zone;
- s8 *p;
zone = page_zone(page);
local_irq_save(flags);
- p = diff_pointer(zone, item);
-
- (*p)++;
-
- if (unlikely(*p > STAT_THRESHOLD)) {
- zone_page_state_add(*p, zone, item);
- *p = 0;
- }
+ __inc_zone_state(zone, item);
local_irq_restore(flags);
}
EXPORT_SYMBOL(inc_zone_page_state);
@@ -297,6 +302,28 @@ EXPORT_SYMBOL(refresh_vm_stats);
#endif
+#ifdef CONFIG_NUMA
+/*
+ * zonelist = the list of zones passed to the allocator
+ * z = the zone from which the allocation occurred.
+ *
+ * Must be called with interrupts disabled.
+ */
+void zone_statistics(struct zonelist *zonelist, struct zone *z)
+{
+ if (z->zone_pgdat == zonelist->zones[0]->zone_pgdat) {
+ __inc_zone_state(z, NUMA_HIT);
+ } else {
+ __inc_zone_state(z, NUMA_MISS);
+ __inc_zone_state(zonelist->zones[0], NUMA_FOREIGN);
+ }
+ if (z->zone_pgdat == NODE_DATA(numa_node_id()))
+ __inc_zone_state(z, NUMA_LOCAL);
+ else
+ __inc_zone_state(z, NUMA_OTHER);
+}
+#endif
+
#ifdef CONFIG_PROC_FS
#include <linux/seq_file.h>
@@ -369,6 +396,15 @@ static char *vmstat_text[] = {
"nr_unstable",
"nr_bounce",
+#ifdef CONFIG_NUMA
+ "numa_hit",
+ "numa_miss",
+ "numa_foreign",
+ "numa_interleave",
+ "numa_local",
+ "numa_other",
+#endif
+
/* Event counters */
"pgpgin",
"pgpgout",
@@ -490,21 +526,6 @@ static int zoneinfo_show(struct seq_file *m, void *arg)
pageset->pcp[j].high,
pageset->pcp[j].batch);
}
-#ifdef CONFIG_NUMA
- seq_printf(m,
- "\n numa_hit: %lu"
- "\n numa_miss: %lu"
- "\n numa_foreign: %lu"
- "\n interleave_hit: %lu"
- "\n local_node: %lu"
- "\n other_node: %lu",
- pageset->numa_hit,
- pageset->numa_miss,
- pageset->numa_foreign,
- pageset->interleave_hit,
- pageset->local_node,
- pageset->other_node);
-#endif
}
seq_printf(m,
"\n all_unreclaimable: %u"