linux-kernel - [PATCH 4/6] mm/vmstat: Inline NUMA event counter updates

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Date:   Mon, 29 Mar 2021 13:06:46 +0100
From:   Mel Gorman <mgorman@...hsingularity.net>
To:     Linux-MM <linux-mm@...ck.org>
Cc:     Linux-RT-Users <linux-rt-users@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Chuck Lever <chuck.lever@...cle.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Mel Gorman <mgorman@...hsingularity.net>
Subject: [PATCH 4/6] mm/vmstat: Inline NUMA event counter updates

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

Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>
---
 include/linux/vmstat.h | 9 +++++++++
 mm/vmstat.c            | 9 ---------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index fc14415223c5..dde4dec4e7dd 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -237,6 +237,15 @@ static inline unsigned long zone_page_state_snapshot(struct zone *zone,
 }
 
 #ifdef CONFIG_NUMA
+/* 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 void __count_numa_event(struct zone *zone, enum numa_stat_item item);
 extern unsigned long sum_zone_node_page_state(int node,
 					      enum zone_stat_item item);
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 46bc61184afc..a326483dd4ab 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -906,15 +906,6 @@ 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