From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1752509AbaHOKzl (ORCPT <rfc822;w@1wt.eu>);
	Fri, 15 Aug 2014 06:55:41 -0400
Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:39078 "EHLO
	cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK)
	by vger.kernel.org with ESMTP id S1751052AbaHOKzj (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Fri, 15 Aug 2014 06:55:39 -0400
Date: Fri, 15 Aug 2014 11:55:51 +0100
From: Will Deacon <will.deacon@arm.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Michael Kerrisk <mtk.manpages@gmail.com>,
        Linux API <linux-api@vger.kernel.org>, Hugh Dickins <hughd@google.com>,
        Johannes Weiner <hannes@cmpxchg.org>, Rik van Riel <riel@redhat.com>,
        KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        Mel Gorman <mgorman@suse.de>, Jason Evans <je@fb.com>,
        Zhang Yanfei <zhangyanfei@cn.fujitsu.com>,
        "Kirill A. Shutemov" <kirill@shutemov.name>,
        Russell King <linux@arm.linux.org.uk>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        Steve Capper <steve.capper@linaro.org>,
        Catalin Marinas <Catalin.Marinas@arm.com>
Subject: Re: [PATCH v14 7/8] arm64: add pmd_[dirty|mkclean] for THP
Message-ID: <20140815105550.GL27466@arm.com>
References: <1407981212-17818-1-git-send-email-minchan@kernel.org>
 <1407981212-17818-8-git-send-email-minchan@kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1407981212-17818-8-git-send-email-minchan@kernel.org>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu, Aug 14, 2014 at 02:53:31AM +0100, Minchan Kim wrote:
> MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent
> overwrite of the contents since MADV_FREE syscall is called for
> THP page.
> 
> This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE
> support.

Acked-by: Will Deacon <will.deacon@arm.com>