linux-kernel - [PATCH] Makes slab pages field in show_free

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Message-Id: <20090630152324.A73A.A69D9226@jp.fujitsu.com>
Date:	Tue, 30 Jun 2009 15:25:15 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	kosaki.motohiro@...fujitsu.com
Subject: [PATCH] Makes slab pages field in show_free_areas() separate two field

Subject: [PATCH] Makes slab pages field in show_free_areas() separate two field

if OOM happed, We really want to know the number of rest reclaimable pages.
Then, reclaimable slab and unreclaimable slab shouldn't be mixed displaing.


Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
---
 mm/page_alloc.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

Index: b/mm/page_alloc.c
===================================================================
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2119,7 +2119,8 @@ void show_free_areas(void)
 		" inactive_file:%lu"
 		" unevictable:%lu"
 		" dirty:%lu writeback:%lu unstable:%lu\n"
-		" free:%lu slab:%lu mapped:%lu pagetables:%lu bounce:%lu\n",
+		" free:%lu slab_reclaimable:%lu slab_unreclaimable:%lu\n"
+		" mapped:%lu pagetables:%lu bounce:%lu\n",
 		global_page_state(NR_ACTIVE_ANON),
 		global_page_state(NR_ACTIVE_FILE),
 		global_page_state(NR_INACTIVE_ANON),
@@ -2129,8 +2130,8 @@ void show_free_areas(void)
 		global_page_state(NR_WRITEBACK),
 		global_page_state(NR_UNSTABLE_NFS),
 		global_page_state(NR_FREE_PAGES),
-		global_page_state(NR_SLAB_RECLAIMABLE) +
-			global_page_state(NR_SLAB_UNRECLAIMABLE),
+		global_page_state(NR_SLAB_RECLAIMABLE),
+		global_page_state(NR_SLAB_UNRECLAIMABLE),
 		global_page_state(NR_FILE_MAPPED),
 		global_page_state(NR_PAGETABLE),
 		global_page_state(NR_BOUNCE));


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