Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754981Ab1DKIBO (ORCPT ); Mon, 11 Apr 2011 04:01:14 -0400 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:49086 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754724Ab1DKIBN (ORCPT ); Mon, 11 Apr 2011 04:01:13 -0400 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 From: KOSAKI Motohiro To: KOSAKI Motohiro Subject: [PATCH 3/3] mm, mem-hotplug: update pcp->stat_threshold when memory hotplug occur Cc: kosaki.motohiro@jp.fujitsu.com, linux-mm , LKML , Andrew Morton , Minchan Kim , Yasunori Goto , Rik van Riel , Johannes Weiner , KAMEZAWA Hiroyuki , Mel Gorman , Christoph Lameter In-Reply-To: <20110411165957.0352.A69D9226@jp.fujitsu.com> References: <20110411165957.0352.A69D9226@jp.fujitsu.com> Message-Id: <20110411170134.035E.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.56.05 [ja] Date: Mon, 11 Apr 2011 17:01:08 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2342 Lines: 76 Currently, cpu hotplug updates pcp->stat_threashold, but memory hotplug doesn't. there is no reason. Signed-off-by: KOSAKI Motohiro Reviewed-by: KAMEZAWA Hiroyuki Acked-by: Mel Gorman Acked-by: Christoph Lameter --- 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 #include #include +#include #include #include @@ -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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/