Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp1777618ybb; Sun, 29 Mar 2020 13:08:02 -0700 (PDT) X-Google-Smtp-Source: ADFU+vtB5w8KpSKUNPKGQSnSbitkYW6IEMAfLyENLRWGZ6y2Vy3aeJo6DCdPELkgGhiRqyWb3Ev6 X-Received: by 2002:a4a:d1a5:: with SMTP id z5mr7389949oor.63.1585512482722; Sun, 29 Mar 2020 13:08:02 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1585512482; cv=none; d=google.com; s=arc-20160816; b=l955ScBtAplGsB6/Hf/WU/ON3WZDLOZpj3ouQicrtLmjiEHZ996eD3DHIcLjEQxE5B OEYhu7RhJyfUfLJ+cpJL3DI1rVJrkJnOC8PK16IvsK4L2SsTyMU19TZKNwZs2eXjrhu6 hMbk6xOwtE6zmGrUgDKYwNpC/6lX2kpcwjZFrf2ul5H0eE3Fjbr2SCuCNxNTNQLKXIws YuvS/RJReK4uhp5cONdpRFbWkHNTk4P2TnAAC+4QmxaXUqbtcEJ7j8UcvEcA6pG2PSF/ XvPqjVdnqLEe9reHHpCklkTGq1fnXNVcTxBxK+USp4aMf3otvQP5b02KLumxXMxBRLIo BERQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:organization:autocrypt:from:references:cc:to:subject :dkim-signature; bh=+Zow1DlmxQrHlZgvDr0rU8gInhR5g7aIDj6M+SlK76k=; b=AxW5YrhOCo6bTsb4jbcOoESYCEJP+bVVATXRX/0YhvVr2QVKO7OVtINaAg2JQ4gncG UGhpF537XbcoeKfadKRvqAxA++j0ZeTp4TlK1DBuN9kUOQJkdHRPVI9ydAz0v0+3NXgf 2sqSeHVOu78ea4Hqi2cK2E48fT+/CoqyqdPoT8k/xtL9Gt5Ov4r4Y0tA9LTc2xhLqWWN QwtyY89pOpsQ5Glve19HFGO2TNpQr6nOP4ObaPRcvMAeIZnNaUhxQs9ITzMMxK47Z4D4 Sk0DnZXoPFf0XIlFpr971J5yKDXPbzcILpP9JS8q4v1TKt1RuRnYgkxtJzlPV/aSZq7Q vVvg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=MgG5USse; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id k19si5571922otb.279.2020.03.29.13.07.49; Sun, 29 Mar 2020 13:08:02 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=MgG5USse; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728537AbgC2TT0 (ORCPT + 99 others); Sun, 29 Mar 2020 15:19:26 -0400 Received: from us-smtp-delivery-74.mimecast.com ([63.128.21.74]:31777 "EHLO us-smtp-delivery-74.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727370AbgC2TT0 (ORCPT ); Sun, 29 Mar 2020 15:19:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1585509565; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=+Zow1DlmxQrHlZgvDr0rU8gInhR5g7aIDj6M+SlK76k=; b=MgG5USseGfmZDfc/YCZ8bVJ9vhkWsDlLLxTBXvtetwIS/UYfxcL9vmq+uLy+yBnm1+VjRK C4XDeRq9gVRJY50KVR9EZMqejnpYRSqpDIxXz5Uf9GHL3sNR6soy1VBlkSf52xssX/3+j4 kzuXXg5IG3577T3BeZzx+KJMi9vCMuc= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-468-jCx8VJKUM5a1zbrYljeYzw-1; Sun, 29 Mar 2020 15:19:19 -0400 X-MC-Unique: jCx8VJKUM5a1zbrYljeYzw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B0B6B1005509; Sun, 29 Mar 2020 19:19:17 +0000 (UTC) Received: from [10.36.112.50] (ovpn-112-50.ams2.redhat.com [10.36.112.50]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9319C19C4F; Sun, 29 Mar 2020 19:19:14 +0000 (UTC) Subject: Re: [PATCH v2 1/2] mm/memory_hotplug: simplify calculation of number of pages in __remove_pages() To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, Segher Boessenkool , Andrew Morton , Oscar Salvador , Michal Hocko , Baoquan He , Dan Williams , Wei Yang , Linus Torvalds References: <20200228095819.10750-1-david@redhat.com> <20200228095819.10750-2-david@redhat.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; prefer-encrypt=mutual; keydata= mQINBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABtCREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT6JAlgEEwEIAEICGwMFCQlmAYAGCwkIBwMCBhUI AgkKCwQWAgMBAh4BAheAFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl3pImkCGQEACgkQTd4Q 9wD/g1o+VA//SFvIHUAvul05u6wKv/pIR6aICPdpF9EIgEU448g+7FfDgQwcEny1pbEzAmiw zAXIQ9H0NZh96lcq+yDLtONnXk/bEYWHHUA014A1wqcYNRY8RvY1+eVHb0uu0KYQoXkzvu+s Dncuguk470XPnscL27hs8PgOP6QjG4jt75K2LfZ0eAqTOUCZTJxA8A7E9+XTYuU0hs7QVrWJ jQdFxQbRMrYz7uP8KmTK9/Cnvqehgl4EzyRaZppshruKMeyheBgvgJd5On1wWq4ZUV5PFM4x II3QbD3EJfWbaJMR55jI9dMFa+vK7MFz3rhWOkEx/QR959lfdRSTXdxs8V3zDvChcmRVGN8U Vo93d1YNtWnA9w6oCW1dnDZ4kgQZZSBIjp6iHcA08apzh7DPi08jL7M9UQByeYGr8KuR4i6e RZI6xhlZerUScVzn35ONwOC91VdYiQgjemiVLq1WDDZ3B7DIzUZ4RQTOaIWdtXBWb8zWakt/ ztGhsx0e39Gvt3391O1PgcA7ilhvqrBPemJrlb9xSPPRbaNAW39P8ws/UJnzSJqnHMVxbRZC Am4add/SM+OCP0w3xYss1jy9T+XdZa0lhUvJfLy7tNcjVG/sxkBXOaSC24MFPuwnoC9WvCVQ ZBxouph3kqc4Dt5X1EeXVLeba+466P1fe1rC8MbcwDkoUo65Ag0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAGJAiUEGAECAA8FAlXLn5ECGwwFCQlmAYAACgkQTd4Q 9wD/g1qA6w/+M+ggFv+JdVsz5+ZIc6MSyGUozASX+bmIuPeIecc9UsFRatc91LuJCKMkD9Uv GOcWSeFpLrSGRQ1Z7EMzFVU//qVs6uzhsNk0RYMyS0B6oloW3FpyQ+zOVylFWQCzoyyf227y GW8HnXunJSC+4PtlL2AY4yZjAVAPLK2l6mhgClVXTQ/S7cBoTQKP+jvVJOoYkpnFxWE9pn4t H5QIFk7Ip8TKr5k3fXVWk4lnUi9MTF/5L/mWqdyIO1s7cjharQCstfWCzWrVeVctpVoDfJWp 4LwTuQ5yEM2KcPeElLg5fR7WB2zH97oI6/Ko2DlovmfQqXh9xWozQt0iGy5tWzh6I0JrlcxJ ileZWLccC4XKD1037Hy2FLAjzfoWgwBLA6ULu0exOOdIa58H4PsXtkFPrUF980EEibUp0zFz GotRVekFAceUaRvAj7dh76cToeZkfsjAvBVb4COXuhgX6N4pofgNkW2AtgYu1nUsPAo+NftU CxrhjHtLn4QEBpkbErnXQyMjHpIatlYGutVMS91XTQXYydCh5crMPs7hYVsvnmGHIaB9ZMfB njnuI31KBiLUks+paRkHQlFcgS2N3gkRBzH7xSZ+t7Re3jvXdXEzKBbQ+dC3lpJB0wPnyMcX FOTT3aZT7IgePkt5iC/BKBk3hqKteTnJFeVIT7EC+a6YUFg= Organization: Red Hat GmbH Message-ID: Date: Sun, 29 Mar 2020 21:19:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200228095819.10750-2-david@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 28.02.20 10:58, David Hildenbrand wrote: > In commit 52fb87c81f11 ("mm/memory_hotplug: cleanup __remove_pages()"), > we cleaned up __remove_pages(), and introduced a shorter variant to > calculate the number of pages to the next section boundary. > > Turns out we can make this calculation easier to read. We always want to > have the number of pages (> 0) to the next section boundary, starting from > the current pfn. @Andrew This patch seems to have another of these weird MIME crap in it. (my other patches in -next seem to be fine) See https://lore.kernel.org/linux-mm/20200228095819.10750-2-david@redhat.com/raw " ... fro= m" should simply be "... from" -- Thanks, David / dhildenb