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 S1750959AbcHDEEG (ORCPT <rfc822;w@1wt.eu>);
	Thu, 4 Aug 2016 00:04:06 -0400
Received: from szxga03-in.huawei.com ([119.145.14.66]:23278 "EHLO
	szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1750699AbcHDEEE (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Thu, 4 Aug 2016 00:04:04 -0400
Message-ID: <57A2BE55.1020302@huawei.com>
Date: Thu, 4 Aug 2016 12:02:29 +0800
From: zhong jiang <zhongjiang@huawei.com>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1
MIME-Version: 1.0
To: <kirill.shutemov@linux.intel.com>, Mel Gorman <mgorman@suse.de>,
        "Michal Hocko" <mhocko@suse.cz>
CC: LKML <linux-kernel@vger.kernel.org>
Subject: A question about transparent hugepages
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7bit
X-Originating-IP: [10.177.29.68]
X-CFilter-Loop: Reflected
X-Mirapoint-Virus-RAPID-Raw: score=unknown(0),
	refid=str=0001.0A020202.57A2BE69.0020,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0,
	ip=0.0.0.0,
	so=2013-05-26 15:14:31,
	dmn=2013-03-21 17:37:32
X-Mirapoint-Loop-Id: 4e6b8e83f599546a30e15c0fa7b9205a
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

according to the total_mapcount,  Different process can map any subpages of the
transparent hugepages.   How it can happen to ?