linux-kernel - Re: [PATCH 1/9] Squashfs: move zlib decompression wrapper code into a separate file

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Date:	Thu, 10 Dec 2009 11:01:23 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Phillip Lougher <phillip@...gher.demon.co.uk>
Cc:	dedekind1@...il.com, Andrew Morton <akpm@...ux-foundation.org>,
	linux-embedded@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, phillip.lougher@...il.com,
	Tim Bird <tim.bird@...sony.com>,
	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>,
	Felix Fietkau <nbd@...nwrt.org>
Subject: Re: [PATCH 1/9] Squashfs: move zlib decompression wrapper code into a 
	separate file

Hi Phillip,

On Thu, Dec 10, 2009 at 01:38, Phillip Lougher
<phillip@...gher.demon.co.uk> wrote:
> Artem Bityutskiy wrote:
>>
>> Did you consider using cryptoapi? UBIFS uses zlib/lzo in cryptoapi - it
>> is a very clean way.

Exactly my question, as that's why the Crypto API was extended with
support for partial (de)compression in the first place ;-)

In addition, using the Crypto API has the advantage that Squashfs will
use hardware decompression if/when available.

> Yes I did consider using the cryptoapi, but this doesn't have support for
> lzma in mainline.

IIRC, Felix Fietkau added support for that for OpenWRT...

> My aim is add lzma filesystem support to Squashfs using the existing kernel
> lzma iplementation, and to make as few changes to that as necessary.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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