From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3shwn771F8zDrPg for ; Mon, 26 Sep 2016 04:37:15 +1000 (AEST) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u8PIXKnY106807 for ; Sun, 25 Sep 2016 14:37:13 -0400 Received: from e36.co.us.ibm.com (e36.co.us.ibm.com [32.97.110.154]) by mx0b-001b2d01.pphosted.com with ESMTP id 25p6vcbn50-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Sun, 25 Sep 2016 14:37:13 -0400 Received: from localhost by e36.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sun, 25 Sep 2016 12:37:12 -0600 From: Reza Arbab To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Rob Herring , Frank Rowand , Jonathan Corbet , Andrew Morton Cc: Bharata B Rao , Nathan Fontenot , Stewart Smith , Alistair Popple , Balbir Singh , "Aneesh Kumar K.V" , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v3 5/5] mm: enable CONFIG_MOVABLE_NODE on powerpc Date: Sun, 25 Sep 2016 13:36:56 -0500 In-Reply-To: <1474828616-16608-1-git-send-email-arbab@linux.vnet.ibm.com> References: <1474828616-16608-1-git-send-email-arbab@linux.vnet.ibm.com> Message-Id: <1474828616-16608-6-git-send-email-arbab@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To create a movable node, we need to hotplug all of its memory into ZONE_MOVABLE. Note that to do this, auto_online_blocks should be off. Since the memory will first be added to the default zone, we must explicitly use online_movable to online. Because such a node contains no normal memory, can_online_high_movable() will only allow us to do the onlining if CONFIG_MOVABLE_NODE is set. Enable the use of this config option on PPC64 platforms. Signed-off-by: Reza Arbab --- Documentation/kernel-parameters.txt | 2 +- mm/Kconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index a4f4d69..3d8460d 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2344,7 +2344,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. that the amount of memory usable for all allocations is not too small. - movable_node [KNL,X86] Boot-time switch to enable the effects + movable_node [KNL,X86,PPC] Boot-time switch to enable the effects of CONFIG_MOVABLE_NODE=y. See mm/Kconfig for details. MTD_Partition= [MTD] diff --git a/mm/Kconfig b/mm/Kconfig index be0ee11..4b19cd3 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 || PPC64 depends on NUMA default n help -- 1.8.3.1