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Message-ID: <4372928D.80100@yahoo.com.au>
Date: Thu, 10 Nov 2005 11:21:33 +1100
From: Nick Piggin <nickpiggin@yahoo.com.au>
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To: Wu Fengguang <wfg@mail.ustc.edu.cn>
CC: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
       linux-mm@vger.kernel.org
Subject: Re: [PATCH 01/16] mm: delayed page activation
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Wu Fengguang wrote:
> When a page is referenced the second time in inactive_list, mark it with
> PG_activate instead of moving it into active_list immediately. The actual
> moving work is delayed to vmscan time.
> 

This is something similar to what Rik and I have both wanted in the
past. In my case it was to simplify and improve the "use once"
streaming io mechanism.

I wouldn't feel comfortable lumping this together with your readahead
work all at once (ditto for some of the other vm changes).

Mabe we should look at making a decision on some of these peripheral
patches before readahead proper.

-- 
SUSE Labs, Novell Inc.

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