Message-ID: <46641472.3080802@de.ibm.com>
Date: Mon, 04 Jun 2007 15:32:34 +0200
From: Carsten Otte <cotte@de.ibm.com>
Reply-To: carsteno@de.ibm.com
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To: Nick Piggin <nickpiggin@yahoo.com.au>
CC: Jared Hulbert <jaredeh@gmail.com>, carsteno@de.ibm.com,
       Andrew Morton <akpm@linux-foundation.org>,
       richard.griffiths@windriver.com,
       Richard Griffiths <res07ml0@verizon.net>, Linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2.6.21] cramfs: add cramfs Linear XIP
References: <1179871779.24163.11.camel@localhost.localdomain>	 <20070522154905.1d7e8a2e.akpm@linux-foundation.org>	 <4653F264.1030807@de.ibm.com> <465BB5BA.3050900@yahoo.com.au> <6934efce0706011748p46cf7995vdca0b9cc3f0b06a3@mail.gmail.com> <46612D6F.6000002@yahoo.com.au>
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Nick Piggin wrote:
> The question is, why is that not enough (I haven't looked at these
> patches enough to work out if there is anything more they provide).
I think, it just takes trying things out. From reading the code, I 
think this should work well for the filemap_xip code with no struct page.
Also, we need eliminate nopage() to get rid of the struct page. 
Unfortunately I don't find time to try this out for now, and on 390 we 
can live with struct page for the time being. In contrast to the 
embedded platforms, the mem_mep array gets swapped out to disk by our 
hypervisor.

so long,
Carsten
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