linux-kernel - Re: [PATCH 4/4] pagemap: document KPF_THP and make page-types aware of it

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Message-Id: <20120104155752.86435535.akpm@linux-foundation.org>
Date:	Wed, 4 Jan 2012 15:57:52 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Cc:	linux-mm@...ck.org, David Rientjes <rientjes@...gle.com>,
	Andi Kleen <andi@...stfloor.org>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] pagemap: document KPF_THP and make page-types aware
 of it

On Wed, 21 Dec 2011 17:23:48 -0500
Naoya Horiguchi <n-horiguchi@...jp.nec.com> wrote:

> page-types, which is a common user of pagemap, gets aware of thp
> with this patch. This helps system admins and kernel hackers know
> about how thp works.
> Here is a sample output of page-types over a thp:

Oh, there it is.

It would be nice to generate a /proc/pid/pagemap test for the forthcoming
tools/testing/selftests/.  But I guess page-types.c is good
enough for now.
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