linux-kernel - Re: [PATCH 00/10] AXFS: Advanced XIP filesystem

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Date:	Thu, 21 Aug 2008 16:49:40 +0200 (CEST)
From:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
To:	Leon Woestenberg <leon.woestenberg@...il.com>
cc:	Jared Hulbert <jaredeh@...il.com>, Linux-kernel@...r.kernel.org,
	linux-embedded@...r.kernel.org,
	linux-mtd <linux-mtd@...ts.infradead.org>,
	Jörn Engel <joern@...fs.org>,
	tim.bird@...sony.com, cotte@...ibm.com, nickpiggin@...oo.com.au
Subject: Re: [PATCH 00/10] AXFS: Advanced XIP filesystem

On Thu, 21 Aug 2008, Leon Woestenberg wrote:
> On Thu, Aug 21, 2008 at 4:19 PM, Jared Hulbert <jaredeh@...il.com> wrote:
> >> FWIW, I'm not sure it's a good idea to name this new filesystem AXFS.
> >> People are almost certainly going to confuse it with XFS despite
> >
> People that care about their filesystem choice know their choices.
> People that don't
> care, well they don't care.
> 
> Maybe AXIPFS would be the close alternative.

It seems to be useful for non-XIP, too...

> One question on the use-case profiling and subsequent image rebuild:
> 
> What if the use-case did not cover all cases of XIP use?
> 
> If a compressed page is attempted to be executed, will the filesystem
> fall back to decompression to RAM and execution from RAM, or will this
> result in a faulty system?
> 
> The design choices look real good. Congrats on the achievement.

You probably want to read the paper at
http://ols.fedoraproject.org/OLS/Reprints-2008/hulbert-reprint.pdf

BTW, I regret now not having attended the OLS presentation, because there was
so much emphasis on `XIP' in the description :-)

Fortunately it's been recorded:

http://free-electrons.com/community/videos/conferences/

so I'm gonna watch it right now...

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium

Phone:    +32 (0)2 700 8453
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E-mail:   Geert.Uytterhoeven@...ycom.com
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