linux-kernel - Re: [PATCH] mm/filemap.c: unconditionally call mark_page

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Date:	Thu, 15 Mar 2007 13:38:59 +0100
From:	Nick Piggin <npiggin@...e.de>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Ashif Harji <asharji@...uwaterloo.ca>, linux-mm@...ck.org,
	Jan Kara <jack@...e.cz>, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org
Subject: Re: [PATCH] mm/filemap.c: unconditionally call mark_page_accessed

On Thu, Mar 15, 2007 at 11:39:14AM +0100, Peter Zijlstra wrote:
> On Wed, 2007-03-14 at 15:58 -0400, Ashif Harji wrote:
> > This patch unconditionally calls mark_page_accessed to prevent pages, 
> > especially for small files, from being evicted from the page cache despite 
> > frequent access.
> 
> Since we're hackling over the use-once stuff again...
> 
> /me brings up: http://marc.info/?l=linux-mm&m=115316894804385&w=2 and
> ducks.

Join the club ;) 

http://groups.google.com.au/group/linux.kernel/msg/7b3237b8e715475b?hl=en&

I can't find the patch where I actually did combine it with a PG_usedonce
bit, but the end result is pretty similar to your patch. And I think one
or two others have also independently invented the same thing.

So it *has* to be good, doesn't it? ;)
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