lkml.org 
[lkml]   [2011]   [Apr]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
FromKOSAKI Motohiro <>
Subject[PATCH 3/3] mm, mem-hotplug: update pcp->stat_threshold when memory hotplug occur
DateMon, 11 Apr 2011 17:01:08 +0900 (JST)
Currently, cpu hotplug updates pcp->stat_threashold, but memory
hotplug doesn't. there is no reason.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Christoph Lameter <cl@linux.com>
---
include/linux/vmstat.h | 1 +
mm/page_alloc.c | 2 ++
mm/vmstat.c | 3 +--
3 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 04fa5df..5f72954 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -201,6 +201,7 @@ extern void dec_zone_state(struct zone *, enum zone_stat_item);
extern void __dec_zone_state(struct zone *, enum zone_stat_item);

void refresh_cpu_vm_stats(int);
+void refresh_zone_stat_thresholds(void);

int calculate_pressure_threshold(struct zone *zone);
int calculate_normal_threshold(struct zone *zone);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ef90a87..10b5816 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -54,6 +54,7 @@
#include <trace/events/kmem.h>
#include <linux/ftrace_event.h>
#include <linux/memcontrol.h>
+#include <linux/vmstat.h>

#include <asm/tlbflush.h>
#include <asm/div64.h>
@@ -5130,6 +5131,7 @@ int __meminit init_per_zone_wmark_min(void)
if (min_free_kbytes > 65536)
min_free_kbytes = 65536;
setup_per_zone_wmarks();
+ refresh_zone_stat_thresholds();
setup_per_zone_lowmem_reserve();
setup_per_zone_inactive_ratio();
return 0;
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 897ea9e..b23b1f5 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -157,7 +157,7 @@ int calculate_normal_threshold(struct zone *zone)
/*
* Refresh the thresholds for each zone.
*/
-static void refresh_zone_stat_thresholds(void)
+void refresh_zone_stat_thresholds(void)
{
struct zone *zone;
int cpu;
@@ -1198,7 +1198,6 @@ static int __init setup_vmstat(void)
#ifdef CONFIG_SMP
int cpu;

- refresh_zone_stat_thresholds();
register_cpu_notifier(&vmstat_notifier);

for_each_online_cpu(cpu)
--
1.7.3.1




\
 
 \ /
  Last update: 2011-04-11 10:03    [from the cache]
©2003-2010