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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2011-05-25 04:11:33 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 19:39:09 +0400
commita6cccdc36c966e51fd969560d870cfd37afbfa9c (patch)
tree17c48382275e1852604e4a513121760a013dd2c6 /include/linux/vmstat.h
parent1b79acc91115ba47e744b70bb166b77bd94f5855 (diff)
downloadlinux-a6cccdc36c966e51fd969560d870cfd37afbfa9c.tar.xz
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 'include/linux/vmstat.h')
-rw-r--r--include/linux/vmstat.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index e73d1030f2f7..51359837511a 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -261,6 +261,7 @@ 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);
@@ -313,6 +314,8 @@ static inline void __dec_zone_page_state(struct page *page,
#define set_pgdat_percpu_threshold(pgdat, callback) { }
static inline void refresh_cpu_vm_stats(int cpu) { }
+static inline void refresh_zone_stat_thresholds(void) { }
+
#endif /* CONFIG_SMP */
extern const char * const vmstat_text[];