linux-kernel - Re: [RFC PATCH 3/10] define page_file

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Message-ID: <Pine.LNX.4.64.0711071005400.9000@schroedinger.engr.sgi.com>
Date:	Wed, 7 Nov 2007 10:06:10 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Rik van Riel <riel@...hat.com>
cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [RFC PATCH 3/10] define page_file_cache

On Wed, 7 Nov 2007, Rik van Riel wrote:

> How exactly can an anonymous page ever become file backed?

When they get assigned a swap entry.

> > Do ramfs pages count as memory backed?
> 
> Since ramfs pages cannot be evicted from memory at all, they
> should go into the "noreclaim" page set.

Which LRU do they go on.

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