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Date: Thu, 7 May 2009 09:39:30 -0400 (EDT)
From: Christoph Lameter <cl@linux.com>
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To: Wu Fengguang <fengguang.wu@intel.com>
cc: Andrew Morton <akpm@linux-foundation.org>,
       Peter Zijlstra <peterz@infradead.org>, Rik van Riel <riel@redhat.com>,
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       Nick Piggin <npiggin@suse.de>, Johannes Weiner <hannes@cmpxchg.org>,
       KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Subject: Re: [PATCH -mm] vmscan: make mapped executable pages the first class
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On Thu, 7 May 2009, Wu Fengguang wrote:

> Introduce AS_EXEC to mark executables and their linked libraries, and to
> protect their referenced active pages from being deactivated.


We already have support for mlock(). How is this an improvement? This is
worse since the AS_EXEC pages stay on the active list and are continually
rescanned.