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Date: Wed, 17 Jun 2009 16:33:48 -0400
From: cl@linux-foundation.org
Subject: [this_cpu_xx V2 11/19] Use this_cpu ops for VM statistics.
Content-Disposition: inline; filename=this_cpu_vmstats
Sender: owner-linux-mm@kvack.org
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, Tejun Heo <tj@kernel.org>, mingo@elte.hu, rusty@rustcorp.com.au, davem@davemloft.net
List-ID: <linux-mm.kvack.org>

Signed-off-by: Christoph Lameter <cl@linux-foundation.org>

---
 include/linux/vmstat.h |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

Index: linux-2.6/include/linux/vmstat.h
===================================================================
--- linux-2.6.orig/include/linux/vmstat.h	2009-06-11 10:50:59.000000000 -0500
+++ linux-2.6/include/linux/vmstat.h	2009-06-11 11:10:48.000000000 -0500
@@ -75,24 +75,22 @@ DECLARE_PER_CPU(struct vm_event_state, v
 
 static inline void __count_vm_event(enum vm_event_item item)
 {
-	__get_cpu_var(vm_event_states).event[item]++;
+	__this_cpu_inc(per_cpu_var(vm_event_states).event[item]);
 }
 
 static inline void count_vm_event(enum vm_event_item item)
 {
-	get_cpu_var(vm_event_states).event[item]++;
-	put_cpu();
+	this_cpu_inc(per_cpu_var(vm_event_states).event[item]);
 }
 
 static inline void __count_vm_events(enum vm_event_item item, long delta)
 {
-	__get_cpu_var(vm_event_states).event[item] += delta;
+	__this_cpu_add(per_cpu_var(vm_event_states).event[item], delta);
 }
 
 static inline void count_vm_events(enum vm_event_item item, long delta)
 {
-	get_cpu_var(vm_event_states).event[item] += delta;
-	put_cpu();
+	this_cpu_add(per_cpu_var(vm_event_states).event[item], delta);
 }
 
 extern void all_vm_events(unsigned long *);

-- 

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