Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933782AbcJFShv (ORCPT ); Thu, 6 Oct 2016 14:37:51 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:40186 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933799AbcJFSgq (ORCPT ); Thu, 6 Oct 2016 14:36:46 -0400 From: Reza Arbab To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Rob Herring , Frank Rowand , Andrew Morton Cc: Bharata B Rao , Nathan Fontenot , Stewart Smith , Alistair Popple , Balbir Singh , "Aneesh Kumar K.V" , Tang Chen , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v4 5/5] mm: enable CONFIG_MOVABLE_NODE on non-x86 arches Date: Thu, 6 Oct 2016 13:36:35 -0500 X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1475778995-1420-1-git-send-email-arbab@linux.vnet.ibm.com> References: <1475778995-1420-1-git-send-email-arbab@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16100618-0056-0000-0000-0000018F8338 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00005864; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000186; SDB=6.00765136; UDB=6.00365562; IPR=6.00540998; BA=6.00004791; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00012897; XFM=3.00000011; UTC=2016-10-06 18:36:41 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16100618-0057-0000-0000-000005C29DFD Message-Id: <1475778995-1420-6-git-send-email-arbab@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-10-06_08:,, 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=8.0.1-1609300000 definitions=main-1610060324 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 971 Lines: 32 To support movable memory nodes (CONFIG_MOVABLE_NODE), at least one of the following must be true: 1. We're on x86. This arch has the capability to identify movable nodes at boot by parsing the ACPI SRAT, if the movable_node option is used. 2. Our config supports memory hotplug, which means that a movable node can be created by hotplugging all of its memory into ZONE_MOVABLE. Fix the Kconfig definition of CONFIG_MOVABLE_NODE, which currently recognizes (1), but not (2). Signed-off-by: Reza Arbab --- mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/Kconfig b/mm/Kconfig index be0ee11..5d0818f 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -153,7 +153,7 @@ config MOVABLE_NODE bool "Enable to assign a node which has only movable memory" depends on HAVE_MEMBLOCK depends on NO_BOOTMEM - depends on X86_64 + depends on X86_64 || MEMORY_HOTPLUG depends on NUMA default n help -- 1.8.3.1