[4/9] mm/vmstat: Inline NUMA event counter updates

Commit Message

Mel Gorman May 12, 2021, 9:54 a.m. UTC

__count_numa_event is small enough to be treated similarly to
__count_vm_event so inline it.

Signed-off-by: Mel Gorman <[e-mail]>
Acked-by: Vlastimil Babka <[e-mail]>
---
 include/linux/vmstat.h | 10 +++++++++-
 mm/vmstat.c            |  9 ---------
 2 files changed, 9 insertions(+), 10 deletions(-)

Patch

diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 59748bbbba4c..fe32a2210e73 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 c6434bab7feb..f71387aced32 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -938,15 +938,6 @@  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