From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f180.google.com (mail-ig0-f180.google.com [209.85.213.180]) by kanga.kvack.org (Postfix) with ESMTP id AD00B900016 for ; Thu, 4 Jun 2015 09:07:16 -0400 (EDT) Received: by igblz2 with SMTP id lz2so38599055igb.1 for ; Thu, 04 Jun 2015 06:07:16 -0700 (PDT) Received: from szxga03-in.huawei.com (szxga03-in.huawei.com. [119.145.14.66]) by mx.google.com with ESMTPS id n10si16439512igv.28.2015.06.04.06.07.14 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 04 Jun 2015 06:07:16 -0700 (PDT) Message-ID: <55704BE7.1000408@huawei.com> Date: Thu, 4 Jun 2015 21:00:23 +0800 From: Xishi Qiu MIME-Version: 1.0 Subject: [RFC PATCH 05/12] mm: introduce a new zone_stat_item NR_FREE_MIRROR_PAGES References: <55704A7E.5030507@huawei.com> In-Reply-To: <55704A7E.5030507@huawei.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Xishi Qiu , Andrew Morton , nao.horiguchi@gmail.com, Yinghai Lu , "H. Peter Anvin" , Thomas Gleixner , mingo@elte.hu, Xiexiuqi , Hanjun Guo , "Luck, Tony" Cc: Linux MM , LKML This patch introduces a new zone_stat_item called "NR_FREE_MIRROR_PAGES", it is used to storage free mirrored pages count. Signed-off-by: Xishi Qiu --- include/linux/mmzone.h | 1 + include/linux/vmstat.h | 2 ++ mm/vmstat.c | 1 + 3 files changed, 4 insertions(+) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index b444335..f82e3ae 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -178,6 +178,7 @@ enum zone_stat_item { WORKINGSET_NODERECLAIM, NR_ANON_TRANSPARENT_HUGEPAGES, NR_FREE_CMA_PAGES, + NR_FREE_MIRROR_PAGES, NR_VM_ZONE_STAT_ITEMS }; /* diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 82e7db7..d0a7268 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -283,6 +283,8 @@ static inline void __mod_zone_freepage_state(struct zone *zone, int nr_pages, __mod_zone_page_state(zone, NR_FREE_PAGES, nr_pages); if (is_migrate_cma(migratetype)) __mod_zone_page_state(zone, NR_FREE_CMA_PAGES, nr_pages); + if (is_migrate_mirror(migratetype)) + __mod_zone_page_state(zone, NR_FREE_MIRROR_PAGES, nr_pages); } extern const char * const vmstat_text[]; diff --git a/mm/vmstat.c b/mm/vmstat.c index d0323e0..7ee11ca 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -739,6 +739,7 @@ const char * const vmstat_text[] = { "workingset_nodereclaim", "nr_anon_transparent_hugepages", "nr_free_cma", + "nr_free_mirror", /* enum writeback_stat_item counters */ "nr_dirty_threshold", -- 2.0.0 -- 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