From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754991Ab1A1IYR (ORCPT ); Fri, 28 Jan 2011 03:24:17 -0500 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:40727 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754947Ab1A1IYQ (ORCPT ); Fri, 28 Jan 2011 03:24:16 -0500 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 Date: Fri, 28 Jan 2011 17:17:44 +0900 From: KAMEZAWA Hiroyuki To: balbir@linux.vnet.ibm.com Cc: Minchan Kim , linux-mm@kvack.org, akpm@linux-foundation.org, npiggin@kernel.dk, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, kosaki.motohiro@jp.fujitsu.com, cl@linux.com Subject: Re: [PATCH 3/3] Provide control over unmapped pages (v4) Message-Id: <20110128171744.b7b37703.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20110128081928.GC5054@balbir.in.ibm.com> References: <20110125051003.13762.35120.stgit@localhost6.localdomain6> <20110125051015.13762.13429.stgit@localhost6.localdomain6> <20110128064851.GB5054@balbir.in.ibm.com> <20110128165605.3cbe5208.kamezawa.hiroyu@jp.fujitsu.com> <20110128081928.GC5054@balbir.in.ibm.com> Organization: FUJITSU Co. LTD. X-Mailer: Sylpheed 3.0.3 (GTK+ 2.10.14; i686-pc-mingw32) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 28 Jan 2011 13:49:28 +0530 Balbir Singh wrote: > * KAMEZAWA Hiroyuki [2011-01-28 16:56:05]: > > BTW, it seems this doesn't work when some apps use huge shmem. > > How to handle the issue ? > > > > Could you elaborate further? > == static inline unsigned long zone_unmapped_file_pages(struct zone *zone) { unsigned long file_mapped = zone_page_state(zone, NR_FILE_MAPPED); unsigned long file_lru = zone_page_state(zone, NR_INACTIVE_FILE) + zone_page_state(zone, NR_ACTIVE_FILE); /* * It's possible for there to be more file mapped pages than * accounted for by the pages on the file LRU lists because * tmpfs pages accounted for as ANON can also be FILE_MAPPED */ return (file_lru > file_mapped) ? (file_lru - file_mapped) : 0; } == Did you read ? Thanks, -Kame From mboxrd@z Thu Jan 1 00:00:00 1970 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH 3/3] Provide control over unmapped pages (v4) Date: Fri, 28 Jan 2011 17:17:44 +0900 Message-ID: <20110128171744.b7b37703.kamezawa.hiroyu@jp.fujitsu.com> References: <20110125051003.13762.35120.stgit@localhost6.localdomain6> <20110125051015.13762.13429.stgit@localhost6.localdomain6> <20110128064851.GB5054@balbir.in.ibm.com> <20110128165605.3cbe5208.kamezawa.hiroyu@jp.fujitsu.com> <20110128081928.GC5054@balbir.in.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Minchan Kim , linux-mm@kvack.org, akpm@linux-foundation.org, npiggin@kernel.dk, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, kosaki.motohiro@jp.fujitsu.com, cl@linux.com To: balbir@linux.vnet.ibm.com Return-path: In-Reply-To: <20110128081928.GC5054@balbir.in.ibm.com> Sender: owner-linux-mm@kvack.org List-Id: kvm.vger.kernel.org On Fri, 28 Jan 2011 13:49:28 +0530 Balbir Singh wrote: > * KAMEZAWA Hiroyuki [2011-01-28 16:56:05]: > > BTW, it seems this doesn't work when some apps use huge shmem. > > How to handle the issue ? > > > > Could you elaborate further? > == static inline unsigned long zone_unmapped_file_pages(struct zone *zone) { unsigned long file_mapped = zone_page_state(zone, NR_FILE_MAPPED); unsigned long file_lru = zone_page_state(zone, NR_INACTIVE_FILE) + zone_page_state(zone, NR_ACTIVE_FILE); /* * It's possible for there to be more file mapped pages than * accounted for by the pages on the file LRU lists because * tmpfs pages accounted for as ANON can also be FILE_MAPPED */ return (file_lru > file_mapped) ? (file_lru - file_mapped) : 0; } == Did you read ? Thanks, -Kame -- 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/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: email@kvack.org