From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f70.google.com (mail-pg0-f70.google.com [74.125.83.70]) by kanga.kvack.org (Postfix) with ESMTP id 0F2C86B0291 for ; Tue, 15 Nov 2016 10:57:17 -0500 (EST) Received: by mail-pg0-f70.google.com with SMTP id 3so105477884pgd.3 for ; Tue, 15 Nov 2016 07:57:17 -0800 (PST) Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com. [148.163.158.5]) by mx.google.com with ESMTPS id s199si27033681pgs.43.2016.11.15.07.57.16 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 15 Nov 2016 07:57:16 -0800 (PST) Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id uAFFsNIh100731 for ; Tue, 15 Nov 2016 10:57:15 -0500 Received: from e37.co.us.ibm.com (e37.co.us.ibm.com [32.97.110.158]) by mx0b-001b2d01.pphosted.com with ESMTP id 26r2qs0tq4-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 15 Nov 2016 10:57:15 -0500 Received: from localhost by e37.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 15 Nov 2016 08:57:14 -0700 Date: Tue, 15 Nov 2016 09:57:07 -0600 From: Reza Arbab Subject: Re: [PATCH v7 2/5] mm: remove x86-only restriction of movable_node References: <1479160961-25840-1-git-send-email-arbab@linux.vnet.ibm.com> <1479160961-25840-3-git-send-email-arbab@linux.vnet.ibm.com> <87lgwlb4u1.fsf@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <87lgwlb4u1.fsf@linux.vnet.ibm.com> Message-Id: <20161115155706.zft7iaw2fjtwu7yp@arbab-laptop.austin.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: "Aneesh Kumar K.V" Cc: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Andrew Morton , Rob Herring , Frank Rowand , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, devicetree@vger.kernel.org, Bharata B Rao , Nathan Fontenot , Stewart Smith , Alistair Popple , Balbir Singh , linux-kernel@vger.kernel.org On Tue, Nov 15, 2016 at 12:35:42PM +0530, Aneesh Kumar K.V wrote: >Considering that we now can mark memblock hotpluggable, do we need to >enable the bottom up allocation for ppc64 also ? No, we don't, because early_init_dt_scan_memory() marks the memblocks hotpluggable immediately when they are added. There is no gap between the addition and the marking, as there is on x86, during which an allocation might accidentally occur in a movable node. -- Reza Arbab -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org