From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1948984AbdE0BQn (ORCPT ); Fri, 26 May 2017 21:16:43 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:56897 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1948714AbdEZVRF (ORCPT ); Fri, 26 May 2017 17:17:05 -0400 In-Reply-To: <20170526210950.33630.84620.stgit@ltcalpine2-lp20.aus.stglabs.ibm.com> To: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Cc: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Reza Arbab , Thomas Gleixner , Bharata B Rao , Balbir Singh , Michael Bringmann , Shailendra Singh , "Aneesh Kumar K.V" , Sebastian Andrzej Siewior From: Michael Bringmann Subject: [PATCH V4 2/2] powerpc/hotplug/mm: Fix hot-add memory node assoc Organization: IBM Linux Technology Center Date: Fri, 26 May 2017 16:16:56 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 17052621-8235-0000-0000-00000B94F1AE X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007123; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000212; SDB=6.00865991; UDB=6.00430113; IPR=6.00645862; BA=6.00005375; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00015600; XFM=3.00000015; UTC=2017-05-26 21:17:02 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17052621-8236-0000-0000-00003BFDAA68 Message-Id: <14c5edf9-9a76-cac3-cc21-54f1ee2bd0b6@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-05-26_15:,, 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=8.0.1-1703280000 definitions=main-1705260381 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Removing or adding memory via the PowerPC hotplug interface currently dumps newly added processors or memory into default node 0, instead of into the node that would be calculated based upon the VPHN affinity tables. The code was updated to ensure that all nodes found at boot are still available to subsequent DLPAR hotplug-memory operations, even if they are not needed at boot time. Signed-off-by: Michael Bringmann --- --- arch/powerpc/mm/numa.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index afcee3f..49d5222 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -905,13 +905,6 @@ void __init initmem_init(void) memblock_dump_all(); - /* - * Reduce the possible NUMA nodes to the online NUMA nodes, - * since we do not support node hotplug. This ensures that we - * lower the maximum NUMA node ID to what is actually present. - */ - nodes_and(node_possible_map, node_possible_map, node_online_map); - for_each_online_node(nid) { unsigned long start_pfn, end_pfn;