From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx117.postini.com [74.125.245.117]) by kanga.kvack.org (Postfix) with SMTP id 35AFD6B004D for ; Wed, 11 Jan 2012 16:29:23 -0500 (EST) Message-ID: <4F0DFF1C.9060801@redhat.com> Date: Wed, 11 Jan 2012 16:29:00 -0500 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [PATCH] mm: vmscan: deactivate isolated pages with lru lock released References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Hillf Danton Cc: linux-mm@kvack.org, KAMEZAWA Hiroyuki , David Rientjes , Andrew Morton , LKML On 01/11/2012 07:45 AM, Hillf Danton wrote: > Spinners on other CPUs, if any, could take the lru lock and do their jobs while > isolated pages are deactivated on the current CPU if the lock is released > actively. And no risk of race raised as pages are already queued on locally > private list. > > > Signed-off-by: Hillf Danton Reviewed-by: Rik van Riel -- 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 internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758155Ab2AKV30 (ORCPT ); Wed, 11 Jan 2012 16:29:26 -0500 Received: from mx1.redhat.com ([209.132.183.28]:10700 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758121Ab2AKV3Y (ORCPT ); Wed, 11 Jan 2012 16:29:24 -0500 Message-ID: <4F0DFF1C.9060801@redhat.com> Date: Wed, 11 Jan 2012 16:29:00 -0500 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110930 Thunderbird/7.0.1 MIME-Version: 1.0 To: Hillf Danton CC: linux-mm@kvack.org, KAMEZAWA Hiroyuki , David Rientjes , Andrew Morton , LKML Subject: Re: [PATCH] mm: vmscan: deactivate isolated pages with lru lock released References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/11/2012 07:45 AM, Hillf Danton wrote: > Spinners on other CPUs, if any, could take the lru lock and do their jobs while > isolated pages are deactivated on the current CPU if the lock is released > actively. And no risk of race raised as pages are already queued on locally > private list. > > > Signed-off-by: Hillf Danton Reviewed-by: Rik van Riel