From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0871BC388F7 for ; Wed, 4 Nov 2020 12:11:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B3E7021734 for ; Wed, 4 Nov 2020 12:11:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729621AbgKDMLO (ORCPT ); Wed, 4 Nov 2020 07:11:14 -0500 Received: from mx2.suse.de ([195.135.220.15]:52006 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726344AbgKDMLO (ORCPT ); Wed, 4 Nov 2020 07:11:14 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id CC5DFAAF1; Wed, 4 Nov 2020 12:11:12 +0000 (UTC) Date: Wed, 4 Nov 2020 13:11:09 +0100 From: Oscar Salvador To: Mike Rapoport Cc: David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Rashmica Gupta , Andrew Morton , Michal Hocko , Wei Yang Subject: Re: [PATCH v1 3/4] powerpc/mm: remove linear mapping if __add_pages() fails in arch_add_memory() Message-ID: <20201104121109.GA5126@localhost.localdomain> References: <20201029162718.29910-1-david@redhat.com> <20201029162718.29910-4-david@redhat.com> <20201104095007.GB4981@localhost.localdomain> <20201104120651.GQ4879@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201104120651.GQ4879@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 04, 2020 at 02:06:51PM +0200, Mike Rapoport wrote: > On Wed, Nov 04, 2020 at 10:50:07AM +0100, osalvador wrote: > > On Thu, Oct 29, 2020 at 05:27:17PM +0100, David Hildenbrand wrote: > > > Let's revert what we did in case seomthing goes wrong and we return an > > > error. > > > > Dumb question, but should not we do this for other arches as well? > > It seems arm64 and s390 already do that. > x86 could have its arch_add_memory() improved though :) Right, I only stared at x86 and see it did not have it. I guess we want to have all arches aligned with this. Thanks -- Oscar Salvador SUSE L3