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From: Andrew Morton <akpm@linux-foundation.org>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: linux-mm@kvack.org, David Rientjes <rientjes@google.com>,
	Andi Kleen <andi@firstfloor.org>,
	Wu Fengguang <fengguang.wu@intel.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/4] pagemap: export KPF_THP
Date: Wed, 4 Jan 2012 15:55:16 -0800	[thread overview]
Message-ID: <20120104155516.19535dc3.akpm@linux-foundation.org> (raw)
In-Reply-To: <1324506228-18327-4-git-send-email-n-horiguchi@ah.jp.nec.com>

On Wed, 21 Dec 2011 17:23:47 -0500
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> wrote:

> This flag shows that a given pages is a subpage of transparent hugepage.
> It helps us debug and test kernel by showing physical address of thp.
>
> ...
>
> --- 3.2-rc5.orig/include/linux/kernel-page-flags.h
> +++ 3.2-rc5/include/linux/kernel-page-flags.h
> @@ -30,6 +30,7 @@
>  #define KPF_NOPAGE		20
>  
>  #define KPF_KSM			21
> +#define KPF_THP			22
>  

Please also update and test Documentation/vm/page-types.c.

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  parent reply	other threads:[~2012-01-04 23:55 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-21 22:23 [PATCH 0/4 v2] pagemap handles transparent hugepage Naoya Horiguchi
2011-12-21 22:23 ` [PATCH 1/4] pagemap: avoid splitting thp when reading /proc/pid/pagemap Naoya Horiguchi
2011-12-26  8:26   ` KAMEZAWA Hiroyuki
2011-12-30  3:39   ` KOSAKI Motohiro
2012-01-03 20:07     ` Naoya Horiguchi
2012-01-03 21:06       ` KOSAKI Motohiro
2012-01-03 21:31         ` Naoya Horiguchi
2012-01-04 23:50   ` Andrew Morton
2012-01-05 16:28     ` Naoya Horiguchi
2011-12-21 22:23 ` [PATCH 2/4] thp: optimize away unnecessary page table locking Naoya Horiguchi
2011-12-22 13:04   ` Hillf Danton
2011-12-22 16:01     ` Naoya Horiguchi
2011-12-30  3:59   ` KOSAKI Motohiro
2012-01-03 20:08     ` Naoya Horiguchi
2011-12-21 22:23 ` [PATCH 3/4] pagemap: export KPF_THP Naoya Horiguchi
2011-12-26  8:40   ` KAMEZAWA Hiroyuki
2011-12-30  4:01   ` KOSAKI Motohiro
2012-01-04 23:55   ` Andrew Morton [this message]
2011-12-21 22:23 ` [PATCH 4/4] pagemap: document KPF_THP and make page-types aware of it Naoya Horiguchi
2011-12-26  8:42   ` KAMEZAWA Hiroyuki
2011-12-30  4:02   ` KOSAKI Motohiro
2012-01-04 23:57   ` Andrew Morton

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