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

From: Mel Gorman
Date: Thu Apr 22 2021 - 07:15:38 EST


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

Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
---
include/linux/vmstat.h | 10 +++++++++-
mm/vmstat.c | 9 ---------
2 files changed, 9 insertions(+), 10 deletions(-)

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 95584bff5440..a3a50d4db41e 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -937,15 +937,6 @@ 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
--
2.26.2