From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f51.google.com (mail-pa0-f51.google.com [209.85.220.51]) by kanga.kvack.org (Postfix) with ESMTP id 748AD6B006E for ; Thu, 12 Feb 2015 02:30:16 -0500 (EST) Received: by mail-pa0-f51.google.com with SMTP id eu11so9576896pac.10 for ; Wed, 11 Feb 2015 23:30:16 -0800 (PST) Received: from lgemrelse7q.lge.com (LGEMRELSE7Q.lge.com. [156.147.1.151]) by mx.google.com with ESMTP id wz10si3846259pab.193.2015.02.11.23.30.09 for ; Wed, 11 Feb 2015 23:30:11 -0800 (PST) From: Joonsoo Kim Subject: [RFC 04/16] mm/vmstat: make node_page_state() handles all zones by itself Date: Thu, 12 Feb 2015 16:32:08 +0900 Message-Id: <1423726340-4084-5-git-send-email-iamjoonsoo.kim@lge.com> In-Reply-To: <1423726340-4084-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1423726340-4084-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Rik van Riel , Johannes Weiner , Mel Gorman , Laura Abbott , Minchan Kim , Heesub Shin , Marek Szyprowski , Michal Nazarewicz , "Aneesh Kumar K.V" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Hui Zhu , Gioh Kim , Bartlomiej Zolnierkiewicz , Ritesh Harjani , Vlastimil Babka , Joonsoo Kim node_page_state() manually add statistics per each zone and return total value for all zones. Whenever we add a new zone, we need to consider this function and it's really troublesome. Make it handles all zones by itself. Signed-off-by: Joonsoo Kim --- include/linux/vmstat.h | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 82e7db7..676488a 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -170,19 +170,13 @@ static inline unsigned long node_page_state(int node, enum zone_stat_item item) { struct zone *zones = NODE_DATA(node)->node_zones; + int i; + unsigned long count = 0; - return -#ifdef CONFIG_ZONE_DMA - zone_page_state(&zones[ZONE_DMA], item) + -#endif -#ifdef CONFIG_ZONE_DMA32 - zone_page_state(&zones[ZONE_DMA32], item) + -#endif -#ifdef CONFIG_HIGHMEM - zone_page_state(&zones[ZONE_HIGHMEM], item) + -#endif - zone_page_state(&zones[ZONE_NORMAL], item) + - zone_page_state(&zones[ZONE_MOVABLE], item); + for (i = 0; i < MAX_NR_ZONES; i++) + count += zone_page_state(zones + i, item); + + return count; } extern void zone_statistics(struct zone *, struct zone *, gfp_t gfp); -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org