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Date: Mon, 17 Jul 2006 20:37:05 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
cc: linux-mm <linux-mm@kvack.org>, Linus Torvalds <torvalds@osdl.org>,
       Andrew Morton <akpm@osdl.org>,
       linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm: inactive-clean list
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On Mon, 17 Jul 2006, Peter Zijlstra wrote:

> This patch implements the inactive_clean list spoken of during the VM summit.
> The LRU tail pages will be unmapped and ready to free, but not freeed.
> This gives reclaim an extra chance.

I thought we wanted to just track the number of unmapped clean pages and 
insure that they do not go under a certain limit? That would not require
any locking changes but just a new zoned counter and a check in the dirty
handling path.