From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938895AbcHJTkV (ORCPT ); Wed, 10 Aug 2016 15:40:21 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:59629 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932804AbcHJTkS (ORCPT ); Wed, 10 Aug 2016 15:40:18 -0400 X-IBM-Helo: d03dlp01.boulder.ibm.com X-IBM-MailFrom: nfont@linux.vnet.ibm.com Subject: Re: [PATCH 0/4] powerpc/mm: movable hotplug memory nodes To: Michael Ellerman , Reza Arbab , Rob Herring , Mark Rutland , Benjamin Herrenschmidt , Paul Mackerras , Jonathan Corbet , Bharata B Rao , devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <1470680843-28702-1-git-send-email-arbab@linux.vnet.ibm.com> <87shucsypn.fsf@concordia.ellerman.id.au> From: Nathan Fontenot Date: Wed, 10 Aug 2016 09:39:05 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <87shucsypn.fsf@concordia.ellerman.id.au> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16081014-0012-0000-0000-0000105DD104 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00005573; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000180; SDB=6.00742729; UDB=6.00349650; IPR=6.00515286; BA=6.00004655; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00012300; XFM=3.00000011; UTC=2016-08-10 14:39:11 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16081014-0013-0000-0000-0000446DC47D Message-Id: <76b4ef23-be57-8138-8117-77531750539e@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-08-10_11:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1608100152 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/10/2016 05:30 AM, Michael Ellerman wrote: > Reza Arbab writes: > >> These changes enable onlining memory into ZONE_MOVABLE on power, and the >> creation of discrete nodes of movable memory. >> >> Node hotplug is not supported on power [1]. > > But maybe it should be? > Yes, it should be supported. I have briefly looked into this recently only to find this will not be a simple update. -Nathan