Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933142AbcK1OWF (ORCPT ); Mon, 28 Nov 2016 09:22:05 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:32945 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932868AbcK1OV5 (ORCPT ); Mon, 28 Nov 2016 09:21:57 -0500 Date: Mon, 28 Nov 2016 15:21:54 +0100 From: Michal Hocko To: Naoya Horiguchi 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 04/12] mm: thp: introduce CONFIG_ARCH_ENABLE_THP_MIGRATION Message-ID: <20161128142154.GM14788@dhcp22.suse.cz> References: <1478561517-4317-1-git-send-email-n-horiguchi@ah.jp.nec.com> <1478561517-4317-5-git-send-email-n-horiguchi@ah.jp.nec.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1478561517-4317-5-git-send-email-n-horiguchi@ah.jp.nec.com> User-Agent: Mutt/1.6.0 (2016-04-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 348 Lines: 9 On Tue 08-11-16 08:31:49, Naoya Horiguchi wrote: > Introduces CONFIG_ARCH_ENABLE_THP_MIGRATION to limit thp migration > functionality to x86_64, which should be safer at the first step. Please make sure to describe why this has to be arch specific and what are arches supposed to provide in order to enable this option. -- Michal Hocko SUSE Labs