diff options
| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2011-05-25 00:11:33 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-25 15:39:09 (GMT) |
| commit | a6cccdc36c966e51fd969560d870cfd37afbfa9c (patch) | |
| tree | 17c48382275e1852604e4a513121760a013dd2c6 | |
| parent | 1b79acc91115ba47e744b70bb166b77bd94f5855 (diff) | |
| download | linux-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>
| -rw-r--r-- | include/linux/vmstat.h | 3 | ||||
| -rw-r--r-- | mm/page_alloc.c | 2 | ||||
| -rw-r--r-- | mm/vmstat.c | 3 |
3 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index e73d103..5135983 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[]; diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e133cea..7777332 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 209546a..20c18b7 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) |