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From: Dave Hansen <haveblue@us.ibm.com>
To: Hans Rosenfeld <hans.rosenfeld@amd.com>
Cc: Matt Mackall <mpm@selenic.com>,
	linux-kernel@vger.kernel.org, Adam Litke <aglitke@gmail.com>,
	nacc <nacc@linux.vnet.ibm.com>,
	Jon Tollefson <kniht@linux.vnet.ibm.com>,
	Adam Litke <agl@linux.vnet.ibm.com>
Subject: Re: [RFC][PATCH] make /proc/pid/pagemap work with huge pages and return page size
Date: Wed, 05 Mar 2008 08:32:46 -0800	[thread overview]
Message-ID: <1204734766.23655.32.camel@nimitz.home.sr71.net> (raw)
In-Reply-To: <20080305160020.GA27109@escobedo.amd.com>


On Wed, 2008-03-05 at 17:00 +0100, Hans Rosenfeld wrote:
> 
> There are a few reserved bits in the pte part of the union that could
> be
> used to extend the pfn or add more status bits in future (a ronly bit,

Were you able to find any other instances of these bitfields being used
for kernel<->user communication?  I thought you were going to check to
see if we could depend on the layout, or if it changed between
compilers.

-- Dave


  reply	other threads:[~2008-03-05 16:33 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-20 13:57 Hans Rosenfeld
2008-02-23  2:18 ` Matt Mackall
2008-02-23 18:31   ` Dave Hansen
2008-02-25 12:09     ` Hans Rosenfeld
2008-02-25 18:39       ` Dave Hansen
2008-02-26 20:25         ` Hans Rosenfeld
2008-02-27 17:44           ` Dave Hansen
2008-02-28 12:00             ` Hans Rosenfeld
2008-02-29  0:49               ` Dave Hansen
2008-02-29  1:15                 ` Matt Mackall
2008-02-29 22:30                   ` Dave Hansen
2008-02-29 22:46                     ` Matt Mackall
2008-03-05 16:00                       ` Hans Rosenfeld
2008-03-05 16:32                         ` Dave Hansen [this message]
2008-03-05 17:22                           ` Hans Rosenfeld
2008-02-23  8:06 ` Andrew Morton
2008-02-23 15:25   ` Matt Mackall

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