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Date: Fri, 8 May 2009 10:25:26 -0400 (EDT)
From: Christoph Lameter <cl@linux.com>
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To: Minchan Kim <minchan.kim@gmail.com>
cc: Wu Fengguang <fengguang.wu@intel.com>,
       Johannes Weiner <hannes@cmpxchg.org>,
       Andrew Morton <akpm@linux-foundation.org>,
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       Nick Piggin <npiggin@suse.de>,
       KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Subject: Re: [PATCH -mm] vmscan: make mapped executable pages the first class
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On Fri, 8 May 2009, Minchan Kim wrote:

> > > Why did you said that "The page_referenced() path will only cover the ""_text_"" section" ?
> > > Could you elaborate please ?
> >
> > I was under the wild assumption that only the _text_ section will be
> > PROT_EXEC mapped.  No?
>
> Yes. I support your idea.

Why do PROT_EXEC mapped segments deserve special treatment? What about the
other memory segments of the process? Essentials like stack, heap and
data segments of the libraries?