linux-kernel - [RFC v2 PATCH 5/8] mm: introduce a new zone_stat_item NR_FREE_MIRROR

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 27 Jun 2015 10:26:18 +0800
From:	Xishi Qiu <qiuxishi@...wei.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
	"Luck, Tony" <tony.luck@...el.com>,
	Hanjun Guo <guohanjun@...wei.com>,
	Xiexiuqi <xiexiuqi@...wei.com>, <leon@...n.nu>,
	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Dave Hansen <dave.hansen@...el.com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Vlastimil Babka <vbabka@...e.cz>, Mel Gorman <mgorman@...e.de>
CC:	Xishi Qiu <qiuxishi@...wei.com>, Linux MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [RFC v2 PATCH 5/8] mm: introduce a new zone_stat_item NR_FREE_MIRROR_PAGES

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 <qiuxishi@...wei.com>
---
 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 54e891a..7cc0a29 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -166,6 +166,7 @@ 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 from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/