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=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 F15F2C31E43 for ; Mon, 10 Jun 2019 16:46:35 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C300820820 for ; Mon, 10 Jun 2019 16:46:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C300820820 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 54CEB6B026C; Mon, 10 Jun 2019 12:46:35 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4FEEF6B026D; Mon, 10 Jun 2019 12:46:35 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3EC916B026E; Mon, 10 Jun 2019 12:46:35 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) by kanga.kvack.org (Postfix) with ESMTP id 052496B026C for ; Mon, 10 Jun 2019 12:46:35 -0400 (EDT) Received: by mail-ed1-f70.google.com with SMTP id b33so16140332edc.17 for ; Mon, 10 Jun 2019 09:46:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-original-authentication-results:x-gm-message-state:date:from:to :cc:subject:message-id:references:mime-version:content-disposition :in-reply-to:user-agent; bh=9H25zsY7K3uH7vHtRU+jcD97JXPrTVo0+KNQXui+OCA=; b=Bp8MwCXlbjsagsSmSnDC1yF/RJucMuXnJt6YC3flNzHWvGDTdT0QQLjpui3kV5WumR liAZUhq+fp3yi5Fg8ungkEQyK8ypIBk5L1fpSHkE11eXa+2j2opxi8bXxdMqUdVIcQ3x Yqd+ehgvGZ/XeAf05HQcg2Ip0CEIYayOsbCOeeLQ4QLXyTnlBsPHWGE8PbvHlv+55fvO TNkDfcqxJGJY+hoOTxFWbplb6PB83pYSxTWofdYOz0GAa8IjV89md7Zg13ziN84tDbmx TB1XCbI76XQFvpipaOPvG3PwLT6VI62TA8oG3U4CgEZmkjFWQjPM6vU8ThqEUYFlN5Ga iDJg== X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of osalvador@suse.de designates 195.135.220.15 as permitted sender) smtp.mailfrom=osalvador@suse.de X-Gm-Message-State: APjAAAWhGhEz9zAbslbEMFEYqUIeslqVECSvRPnymiIbssTonT9oHmsy HNn0K6QZ3OCLUcjH6S3zQROkkJ7R2XOkgn9CetltO0bSTdtc+RMPzP/0n4315wmMIbUbZTbXVud YJ24CpF9sb3HEsbC2vIuEtQmYWD4cvNNVXE+uKvVyWiAGzCBUoQAsKkmpCb0xid/H2w== X-Received: by 2002:a17:906:858f:: with SMTP id v15mr15592045ejx.252.1560185194579; Mon, 10 Jun 2019 09:46:34 -0700 (PDT) X-Google-Smtp-Source: APXvYqw6Sg+ullt6V8KulPryVth3EL1OkI50nHpgVxZkRg6S6DVqR7XxssbhnMxXdmxSKD8Ifso5 X-Received: by 2002:a17:906:858f:: with SMTP id v15mr15591981ejx.252.1560185193560; Mon, 10 Jun 2019 09:46:33 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560185193; cv=none; d=google.com; s=arc-20160816; b=wZwIgbCMVUMbdA61i2SOzDIbC6IToXWkPyhorSl++nwns8VUvMFvltU+50Zse4trha 6uGXKn/WQN2DBskb+7mMhimBZ6ofxvNFBMnu0WqhO3q+tZUi4ZZqHPqxyiLoaVcg93aT 7++McRouA7udZaAoVCkHSillzwc8Imh66ADw7edfEyiIwwCCnhqYoqts3XLQ5z9iQIrN 2LAzkHmqkNuia7FojlwcpzYk7BM/JgHGuNb8QjNQL1fBUg1pLr9xghWgLgu55K8W7wK9 CQEjVfFX8iXUaBmdloMPBFyKt7+nbT07MILbGh2f7joKzg+MHwkj2j3Fg35GChFoIsXQ xb0Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date; bh=9H25zsY7K3uH7vHtRU+jcD97JXPrTVo0+KNQXui+OCA=; b=v/JUQpT3Ijh3I2d72OcXup868rbE9Fg6Cmwlj6wArMbRKrscFFAdmwY6VT7zt5l3AW pIvlpK7JVLm6Noao8fEU/kpGCjCyqv+bJwO3f5rkTQlk1zb0FhCYCk701W15BC4jpRVz IhofrB5uV4Rp6+WhrSDbw7CTo1gOh8E7JcqecPsayxibTftf93qdFIQOWM8zZ04unKzj EBE6nZED9XqV7sBFj71OTUWbyDVV/bQ3UYkG10a2u4b0VYdHMf92Ci04RItB8dkMp94A i7qb3cXBnMxaRjQagxdi1LwgAlKw8iC9p7PizY/lniIVY3+8kVwwwAWk0Y0o3tclG8gK ZQoA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of osalvador@suse.de designates 195.135.220.15 as permitted sender) smtp.mailfrom=osalvador@suse.de Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id t8si1647529eda.160.2019.06.10.09.46.33 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 10 Jun 2019 09:46:33 -0700 (PDT) Received-SPF: pass (google.com: domain of osalvador@suse.de designates 195.135.220.15 as permitted sender) client-ip=195.135.220.15; Authentication-Results: mx.google.com; spf=pass (google.com: domain of osalvador@suse.de designates 195.135.220.15 as permitted sender) smtp.mailfrom=osalvador@suse.de X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 6FFB8AD0C; Mon, 10 Jun 2019 16:46:32 +0000 (UTC) Date: Mon, 10 Jun 2019 18:46:27 +0200 From: Oscar Salvador To: David Hildenbrand Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-arm-kernel@lists.infradead.org, akpm@linux-foundation.org, Dan Williams , Wei Yang , Igor Mammedov , Michal Hocko , Pavel Tatashin , Qian Cai , Arun KS , Mathieu Malaterre , Wei Yang Subject: Re: [PATCH v3 01/11] mm/memory_hotplug: Simplify and fix check_hotplug_memory_range() Message-ID: <20190610164622.GA5643@linux> References: <20190527111152.16324-1-david@redhat.com> <20190527111152.16324-2-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190527111152.16324-2-david@redhat.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, May 27, 2019 at 01:11:42PM +0200, David Hildenbrand wrote: > By converting start and size to page granularity, we actually ignore > unaligned parts within a page instead of properly bailing out with an > error. > > Cc: Andrew Morton > Cc: Oscar Salvador > Cc: Michal Hocko > Cc: David Hildenbrand > Cc: Pavel Tatashin > Cc: Qian Cai > Cc: Wei Yang > Cc: Arun KS > Cc: Mathieu Malaterre > Reviewed-by: Dan Williams > Reviewed-by: Wei Yang > Signed-off-by: David Hildenbrand Reviewed-by: Oscar Salvador -- Oscar Salvador SUSE L3