diff mbox series

[04/10] mm/vmstat: Inline NUMA event counter updates

Message ID 20210419141341.26047-5-mgorman@techsingularity.net (mailing list archive)
State New
Headers show
Series Use local_lock for pcp protection and reduce stat overhead | expand

Commit Message

Mel Gorman April 19, 2021, 2:13 p.m. UTC
__count_numa_event is small enough to be treated similarly to
__count_vm_event so inline it.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---
 include/linux/vmstat.h | 10 +++++++++-
 mm/vmstat.c            |  9 ---------
 2 files changed, 9 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index b120c58cae82..c1d2c316ce7d 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -238,7 +238,15 @@  static inline unsigned long zone_page_state_snapshot(struct zone *zone,
 }
 
 #ifdef CONFIG_NUMA
-extern void __count_numa_event(struct zone *zone, enum numa_stat_item item);
+/* See __count_vm_event comment on why raw_cpu_inc is used. */
+static inline void
+__count_numa_event(struct zone *zone, enum numa_stat_item item)
+{
+	struct per_cpu_zonestat __percpu *pzstats = zone->per_cpu_zonestats;
+
+	raw_cpu_inc(pzstats->vm_numa_event[item]);
+}
+
 extern unsigned long sum_zone_node_page_state(int node,
 					      enum zone_stat_item item);
 extern unsigned long sum_zone_numa_event_state(int node, enum numa_stat_item item);
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 97558cb607ac..4e6c474a3cd6 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -935,15 +935,6 @@  void drain_zonestat(struct zone *zone, struct per_cpu_zonestat *pzstats)
 #endif
 
 #ifdef CONFIG_NUMA
-/* See __count_vm_event comment on why raw_cpu_inc is used. */
-void __count_numa_event(struct zone *zone,
-				 enum numa_stat_item item)
-{
-	struct per_cpu_zonestat __percpu *pzstats = zone->per_cpu_zonestats;
-
-	raw_cpu_inc(pzstats->vm_numa_event[item]);
-}
-
 /*
  * Determine the per node value of a stat item. This function
  * is called frequently in a NUMA machine, so try to be as