From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759703AbZGIILh (ORCPT ); Thu, 9 Jul 2009 04:11:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756238AbZGIILX (ORCPT ); Thu, 9 Jul 2009 04:11:23 -0400 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:34997 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755337AbZGIILV (ORCPT ); Thu, 9 Jul 2009 04:11:21 -0400 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 From: KOSAKI Motohiro To: LKML Subject: [PATCH 2/5] add buffer cache information to show_free_areas() Cc: kosaki.motohiro@jp.fujitsu.com, linux-mm , Andrew Morton , Wu Fengguang , Christoph Lameter , David Rientjes , Rik van Riel , Hugh Dickins In-Reply-To: <20090709165820.23B7.A69D9226@jp.fujitsu.com> References: <20090709165820.23B7.A69D9226@jp.fujitsu.com> Message-Id: <20090709171027.23C0.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.50.07 [ja] Date: Thu, 9 Jul 2009 17:11:18 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ChangeLog Since v2 - Changed display order, now, "buffer" field display right after unstable Since v1 - Fixed showing the number with kilobyte unit issue ================ Subject: [PATCH] add buffer cache information to show_free_areas() When administrator analysis memory shortage reason from OOM log, They often need to know rest number of cache like pages. Then, show_free_areas() shouldn't only display page cache, but also it should display buffer cache. Signed-off-by: KOSAKI Motohiro Acked-by: Wu Fengguang --- mm/page_alloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) Index: b/mm/page_alloc.c =================================================================== --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2118,7 +2118,7 @@ void show_free_areas(void) printk("Active_anon:%lu active_file:%lu inactive_anon:%lu\n" " inactive_file:%lu" " unevictable:%lu" - " dirty:%lu writeback:%lu unstable:%lu\n" + " dirty:%lu writeback:%lu unstable:%lu buffer:%lu\n" " free:%lu slab_reclaimable:%lu slab_unreclaimable:%lu\n" " mapped:%lu pagetables:%lu bounce:%lu\n", global_page_state(NR_ACTIVE_ANON), @@ -2129,6 +2129,7 @@ void show_free_areas(void) global_page_state(NR_FILE_DIRTY), global_page_state(NR_WRITEBACK), global_page_state(NR_UNSTABLE_NFS), + nr_blockdev_pages(), global_page_state(NR_FREE_PAGES), global_page_state(NR_SLAB_RECLAIMABLE), global_page_state(NR_SLAB_UNRECLAIMABLE),