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Message-ID: <20070608080401.GA17684@infradead.org>
Date: Fri, 8 Jun 2007 09:04:01 +0100
From: Christoph Hellwig <hch@...radead.org>
To: carsteno@...ibm.com
Cc: Christoph Hellwig <hch@...radead.org>,
Jared Hulbert <jaredeh@...il.com>,
Nick Piggin <nickpiggin@...oo.com.au>,
Andrew Morton <akpm@...ux-foundation.org>,
richard.griffiths@...driver.com,
Richard Griffiths <res07ml0@...izon.net>,
Linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.21] cramfs: add cramfs Linear XIP
On Fri, Jun 08, 2007 at 09:59:20AM +0200, Carsten Otte wrote:
> Christoph Hellwig wrote:
> >Jared's patch currently does ioremap on mount (and no iounmap at all).
> >That mapping needs to move from the filesystem to the device driver.
> The device driver needs to do ioremap on open(), and iounmap() on
> release. That's effectively what our block driver does.
Yes, exactly.
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