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Date: Sat, 18 Aug 2007 18:31:46 +0800
From: Fengguang Wu <wfg@mail.ustc.edu.cn>
To: Matt Mackall <mpm@selenic.com>
Cc: Andrew Morton <akpm@osdl.org>, Jeremy Fitzhardinge <jeremy@goop.org>,
       David Rientjes <rientjes@google.com>,
       John Berthels <jjberthels@gmail.com>,
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Subject: Re: [PATCH 4/4] maps: /proc/<pid>/pmaps interface - memory maps in
	granularity of pages
Message-ID: <20070818103146.GA6744@mail.ustc.edu.cn>
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On Sat, Aug 18, 2007 at 01:40:42AM -0500, Matt Mackall wrote:
> > > - you don't get page frame numbers
> > 
> > True. I guess PFNs are meaningless to a normal user?
> 
> They're useful for anyone who's trying to look at the system as a
> whole.

To answer the question: "who are sharing this page with me"?
PFNs are not the only option. The tuple dev/ino/offset can also
uniquely identify the shared page :)

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