From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f72.google.com (mail-wm0-f72.google.com [74.125.82.72]) by kanga.kvack.org (Postfix) with ESMTP id 0963D6B000E for ; Tue, 7 Aug 2018 10:28:29 -0400 (EDT) Received: by mail-wm0-f72.google.com with SMTP id h14-v6so11545744wmb.4 for ; Tue, 07 Aug 2018 07:28:28 -0700 (PDT) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id r14-v6sor466452wmc.12.2018.08.07.07.28.27 for (Google Transport Security); Tue, 07 Aug 2018 07:28:27 -0700 (PDT) Date: Tue, 7 Aug 2018 16:28:26 +0200 From: Oscar Salvador Subject: Re: [RFC PATCH 0/3] Do not touch pages in remove_memory path Message-ID: <20180807142826.GB5309@techadventures.net> References: <20180807133757.18352-1-osalvador@techadventures.net> <6407d022-87b7-f5e0-572a-c5c29aba1314@redhat.com> <20180807141922.GA5244@techadventures.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: David Hildenbrand Cc: akpm@linux-foundation.org, mhocko@suse.com, dan.j.williams@intel.com, pasha.tatashin@oracle.com, jglisse@redhat.com, yasu.isimatu@gmail.com, logang@deltatee.com, dave.jiang@intel.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Oscar Salvador On Tue, Aug 07, 2018 at 04:20:37PM +0200, David Hildenbrand wrote: > On 07.08.2018 16:19, Oscar Salvador wrote: > > On Tue, Aug 07, 2018 at 04:16:35PM +0200, David Hildenbrand wrote: > >> On 07.08.2018 15:37, osalvador@techadventures.net wrote: > >>> From: Oscar Salvador > >>> > >>> This tries to fix [1], which was reported by David Hildenbrand, and also > >>> does some cleanups/refactoring. > >>> > >>> I am sending this as RFC to see if the direction I am going is right before > >>> spending more time into it. > >>> And also to gather feedback about hmm/zone_device stuff. > >>> The code compiles and I tested it successfully with normal memory-hotplug operations. > >>> > >> > >> Please coordinate next time with people already working on this, > >> otherwise you might end up wasting other people's time. > > > > Hi David, > > > > Sorry, if you are already working on this, I step back immediately. > > I will wait for your work. > > No, please keep going, you are way ahead of me ;) > > (I was got stuck at ZONE_DEVICE so far) It seems mine breaks ZONE_DEVICE for hmm at least, so.. not much better ^^. So since you already got some work, let us not throw it away. Thanks -- Oscar Salvador SUSE L3