linux-kernel - Re: [PATCH 2.6.21] cramfs: add cramfs Linear XIP

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Message-Id: <20070522154905.1d7e8a2e.akpm@linux-foundation.org>
Date:	Tue, 22 May 2007 15:49:05 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	richard.griffiths@...driver.com
Cc:	Richard Griffiths <res07ml0@...izon.net>,
	Linux-kernel@...r.kernel.org, Carsten Otte <cotte@...ibm.com>
Subject: Re: [PATCH 2.6.21] cramfs: add cramfs Linear XIP

On Tue, 22 May 2007 15:09:39 -0700
Richard Griffiths <res07ml0@...izon.net> wrote:

> Venerable cramfs fs Linear XIP patch originally from MontaVista, used in
> the embedded Linux community for years, updated for 2.6.21. Tested on
> several systems with NOR Flash. PXA270, TI OMAP2430, ARM Versatile and
> Freescale iMX31ADS.

It's good to see some of these secret embedded patches heading in
the mainline direction.

But we'd expected and hoped that flash-based XIP would be able to use
the existing xip infrastructure, in mm/filemap_xip.c.  Not possible?

The de-constification of cramfs_ops and cramfs_dir_inode_operations
was, I assume, a mistake?
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