Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756352AbcK2IAT convert rfc822-to-8bit (ORCPT ); Tue, 29 Nov 2016 03:00:19 -0500 Received: from TYO202.gate.nec.co.jp ([210.143.35.52]:45199 "EHLO tyo202.gate.nec.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752894AbcK2IAN (ORCPT ); Tue, 29 Nov 2016 03:00:13 -0500 From: Naoya Horiguchi To: Michal Hocko CC: "linux-mm@kvack.org" , "Kirill A. Shutemov" , Hugh Dickins , "Andrew Morton" , Dave Hansen , Andrea Arcangeli , Mel Gorman , Vlastimil Babka , "Pavel Emelyanov" , Zi Yan , Balbir Singh , "linux-kernel@vger.kernel.org" , Naoya Horiguchi Subject: Re: [PATCH v2 05/12] mm: thp: add core routines for thp/pmd migration Thread-Topic: [PATCH v2 05/12] mm: thp: add core routines for thp/pmd migration Thread-Index: AQHSOU9Q7WDKwpLw/E++HKi9rnTMz6Dt/rsAgAEkXoA= Date: Tue, 29 Nov 2016 07:57:58 +0000 Message-ID: <20161129075757.GB15582@hori1.linux.bs1.fc.nec.co.jp> References: <1478561517-4317-1-git-send-email-n-horiguchi@ah.jp.nec.com> <1478561517-4317-6-git-send-email-n-horiguchi@ah.jp.nec.com> <20161128143132.GN14788@dhcp22.suse.cz> In-Reply-To: <20161128143132.GN14788@dhcp22.suse.cz> Accept-Language: en-US, ja-JP Content-Language: ja-JP X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.128.101.15] Content-Type: text/plain; charset="iso-2022-jp" Content-ID: <5DF570CF9EF06C4DB6A4A0F6B59C8DB6@gisp.nec.co.jp> Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 562 Lines: 16 On Mon, Nov 28, 2016 at 03:31:32PM +0100, Michal Hocko wrote: > On Tue 08-11-16 08:31:50, Naoya Horiguchi wrote: > > This patch prepares thp migration's core code. These code will be open when > > unmap_and_move() stops unconditionally splitting thp and get_new_page() starts > > to allocate destination thps. > > this description is underdocumented to say the least. Could you > provide a high level documentation here please? Yes, I'll do. And maybe some update on Documentation/vm/page_migration will be wanted, so will do it too. Thanks, Naoya Horiguchi