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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2011-05-24 17:11:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 08:39:09 -0700
commita6cccdc36c966e51fd969560d870cfd37afbfa9c (patch)
tree17c48382275e1852604e4a513121760a013dd2c6 /mm
parent1b79acc91115ba47e744b70bb166b77bd94f5855 (diff)
downloadlinux-a6cccdc36c966e51fd969560d870cfd37afbfa9c.tar.bz2
mm, mem-hotplug: update pcp->stat_threshold when memory hotplug occur
Currently, cpu hotplug updates pcp->stat_threshold, but memory hotplug doesn't. There is no reason for this. [akpm@linux-foundation.org: fix CONFIG_SMP=n build] 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c2
-rw-r--r--mm/vmstat.c3
2 files changed, 3 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e133cea36932..77773329aa72 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -39,6 +39,7 @@
#include <linux/memory_hotplug.h>
#include <linux/nodemask.h>
#include <linux/vmalloc.h>
+#include <linux/vmstat.h>
#include <linux/mempolicy.h>
#include <linux/stop_machine.h>
#include <linux/sort.h>
@@ -5152,6 +5153,7 @@ 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 209546a8bdd5..20c18b7694b2 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;
@@ -1201,7 +1201,6 @@ 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)