Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1946399AbbHGWvG (ORCPT <rfc822;w@1wt.eu>);
	Fri, 7 Aug 2015 18:51:06 -0400
Received: from mail.linuxfoundation.org ([140.211.169.12]:47416 "EHLO
	mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1946334AbbHGWvA (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Fri, 7 Aug 2015 18:51:00 -0400
Date: Fri, 7 Aug 2015 15:50:59 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: David Rientjes <rientjes@google.com>,
        =?ISO-8859-1?Q?J=F6rn?= Engel <joern@purestorage.com>,
        Mike Kravetz <mike.kravetz@oracle.com>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Naoya Horiguchi <nao.horiguchi@gmail.com>
Subject: Re: [PATCH v2 1/2] smaps: fill missing fields for vma(VM_HUGETLB)
Message-Id: <20150807155059.dbfdbdeacd4e9c9397901b7e@linux-foundation.org>
In-Reply-To: <1438932278-7973-2-git-send-email-n-horiguchi@ah.jp.nec.com>
References: <20150806074443.GA7870@hori1.linux.bs1.fc.nec.co.jp>
	<1438932278-7973-1-git-send-email-n-horiguchi@ah.jp.nec.com>
	<1438932278-7973-2-git-send-email-n-horiguchi@ah.jp.nec.com>
X-Mailer: Sylpheed 3.4.1 (GTK+ 2.24.23; x86_64-pc-linux-gnu)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 1644
Lines: 51

On Fri, 7 Aug 2015 07:24:50 +0000 Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> wrote:

> Currently smaps reports many zero fields for vma(VM_HUGETLB), which is
> inconvenient when we want to know per-task or per-vma base hugetlb usage.
> This patch enables these fields by introducing smaps_hugetlb_range().
> 
> before patch:
> 
>   Size:              20480 kB
>   Rss:                   0 kB
>   Pss:                   0 kB
>   Shared_Clean:          0 kB
>   Shared_Dirty:          0 kB
>   Private_Clean:         0 kB
>   Private_Dirty:         0 kB
>   Referenced:            0 kB
>   Anonymous:             0 kB
>   AnonHugePages:         0 kB
>   Swap:                  0 kB
>   KernelPageSize:     2048 kB
>   MMUPageSize:        2048 kB
>   Locked:                0 kB
>   VmFlags: rd wr mr mw me de ht
> 
> after patch:
> 
>   Size:              20480 kB
>   Rss:               18432 kB
>   Pss:               18432 kB
>   Shared_Clean:          0 kB
>   Shared_Dirty:          0 kB
>   Private_Clean:         0 kB
>   Private_Dirty:     18432 kB
>   Referenced:        18432 kB
>   Anonymous:         18432 kB
>   AnonHugePages:         0 kB
>   Swap:                  0 kB
>   KernelPageSize:     2048 kB
>   MMUPageSize:        2048 kB
>   Locked:                0 kB
>   VmFlags: rd wr mr mw me de ht
> 

Is there something we can say about this in
Documentation/filesystems/proc.txt?

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/