Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753497Ab3GBSAN (ORCPT ); Tue, 2 Jul 2013 14:00:13 -0400 Received: from kanga.kvack.org ([205.233.56.17]:33462 "EHLO kanga.kvack.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752060Ab3GBSAL (ORCPT ); Tue, 2 Jul 2013 14:00:11 -0400 Date: Tue, 2 Jul 2013 14:00:08 -0400 From: Benjamin LaHaise To: Gu Zheng Cc: Tang Chen , Mel Gorman , Minchan Kim , akpm@linux-foundation.org, viro@zeniv.linux.org.uk, khlebnikov@openvz.org, walken@google.com, kamezawa.hiroyu@jp.fujitsu.com, riel@redhat.com, rientjes@google.com, isimatu.yasuaki@jp.fujitsu.com, wency@cn.fujitsu.com, laijs@cn.fujitsu.com, jiang.liu@huawei.com, zab@redhat.com, jmoyer@redhat.com, linux-mm@kvack.org, linux-aio@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Marek Szyprowski Subject: Re: [WiP]: aio support for migrating pages (Re: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable()) Message-ID: <20130702180008.GQ16399@kvack.org> References: <20130515132453.GB11497@suse.de> <5194748A.5070700@cn.fujitsu.com> <20130517002349.GI1008@kvack.org> <5195A3F4.70803@cn.fujitsu.com> <20130517143718.GK1008@kvack.org> <519AD6F8.2070504@cn.fujitsu.com> <20130521022733.GT1008@kvack.org> <51B6F107.80501@cn.fujitsu.com> <20130611144525.GB14404@kvack.org> <51D12E7B.6080301@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <51D12E7B.6080301@cn.fujitsu.com> User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1128 Lines: 23 On Mon, Jul 01, 2013 at 03:23:39PM +0800, Gu Zheng wrote: > Hi Ben, > Are you still working on this patch? > As you know, using the current anon inode will lead to more than one instance of > aio can not work. Have you found a way to fix this issue? Or can we use some > other ones to replace the anon inode? This patch hasn't been a high priority for me. I would really appreciate it if someone could confirm that this patch does indeed fix the hotplug page migration issue by testing it in a system that hits the bug. Removing the anon_inode bits isn't too much work, but I'd just like to have some confirmation that this fix is considered to be "good enough" for the problem at hand before spending any further time on it. There was talk of using another approach, but it's not clear if there was any progress. -ben -- "Thought is the essence of where you are now." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/