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 S1759148AbcIHSPX (ORCPT <rfc822;w@1wt.eu>);
        Thu, 8 Sep 2016 14:15:23 -0400
Received: from mga14.intel.com ([192.55.52.115]:20394 "EHLO mga14.intel.com"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1754109AbcIHSPU (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 8 Sep 2016 14:15:20 -0400
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="5.30,301,1470726000"; 
   d="scan'208";a="1027022009"
From: "Huang\, Ying" <ying.huang@intel.com>
To: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: "Huang\, Ying" <ying.huang@intel.com>,
        Andrew Morton <akpm@linux-foundation.org>, <tim.c.chen@intel.com>,
        <dave.hansen@intel.com>, <andi.kleen@intel.com>, <aaron.lu@intel.com>,
        <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
        Andrea Arcangeli <aarcange@redhat.com>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
        Vladimir Davydov <vdavydov@virtuozzo.com>,
        Johannes Weiner <hannes@cmpxchg.org>, Michal Hocko <mhocko@kernel.org>,
        Tejun Heo <tj@kernel.org>, <cgroups@vger.kernel.org>
Subject: Re: [PATCH -v3 03/10] mm, memcg: Support to charge/uncharge multiple swap entries
References: <1473266769-2155-1-git-send-email-ying.huang@intel.com>
        <1473266769-2155-4-git-send-email-ying.huang@intel.com>
        <57D12134.40604@linux.vnet.ibm.com>
Date: Thu, 08 Sep 2016 11:15:13 -0700
In-Reply-To: <57D12134.40604@linux.vnet.ibm.com> (Anshuman Khandual's message
        of "Thu, 8 Sep 2016 13:58:36 +0530")
Message-ID: <87wpim45se.fsf@yhuang-mobile.sh.intel.com>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)
MIME-Version: 1.0
Content-Type: text/plain; charset=ascii
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Anshuman Khandual <khandual@linux.vnet.ibm.com> writes:

> On 09/07/2016 10:16 PM, Huang, Ying wrote:
>> From: Huang Ying <ying.huang@intel.com>
>> 
>> This patch make it possible to charge or uncharge a set of continuous
>> swap entries in the swap cgroup.  The number of swap entries is
>> specified via an added parameter.
>> 
>> This will be used for the THP (Transparent Huge Page) swap support.
>> Where a swap cluster backing a THP may be allocated and freed as a
>> whole.  So a set of continuous swap entries (512 on x86_64) backing one
>
> Please use HPAGE_SIZE / PAGE_SIZE instead of hard coded number like 512.

Sure.  Will change it.

Best Regards,
Huang, Ying