linux-kernel - Re: [PATCH/RFC] ps3/block: Add ps3vram-ng driver for accessing video RAM as block device

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Message-ID: <20090305065423.GK11787@kernel.dk>
Date:	Thu, 5 Mar 2009 07:54:23 +0100
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>,
	Jim Paris <jim@...n.com>,
	Vivien Chappelier <vivien.chappelier@...e.fr>,
	David Woodhouse <dwmw2@...radead.org>,
	Arnd Bergmann <arnd@...db.de>,
	Geoff Levand <geoffrey.levand@...sony.com>,
	Linux/PPC Development <linuxppc-dev@...abs.org>,
	Cell Broadband Engine OSS Development 
	<cbe-oss-dev@...abs.org>,
	Linux Kernel Development <linux-kernel@...r.kernel.org>,
	linux-mtd@...ts.infradead.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH/RFC] ps3/block: Add ps3vram-ng driver for accessing
	video RAM as block device

On Thu, Mar 05 2009, Benjamin Herrenschmidt wrote:
> On Wed, 2009-03-04 at 14:57 +0100, Geert Uytterhoeven wrote:
> > 	Hi,
> > 
> > Below is the rewrite of the PS3 Video RAM Storage Driver as a plain block
> > device, as requested by Arnd Bergmann.
> > 
> > The MTD-based PS3 Video RAM Storage Driver was integrated into the mainline
> > kernel in 2.6.29-rc1.
> > 
> > Ideally, we think it would be best if the existing MTD-based ps3vram driver
> > would be replaced by the new block-based ps3vram driver before 2.6.29 is
> > released. This would relieve the burden of supporting two different swap space
> > schemes on PS3 (swap on /dev/mtdblock0 vs. /dev/ps3vram) from the distro
> > maintainer's shoulders, as in that case there would never have been a stable
> > kernel version containing the MTD-based ps3vram driver.
> 
> This is very very very late ... we are at rc7, probably one rc before
> final... as much as I like integrating drivers later, I'll ask Linus
> opinion on this one.
> 
> Linus ? What do you reckon ? Maybe a better option is just to remove
> ps3nvram from .29 and merge the new one in .30 ?

It's an isolated driver for a special purpose platform, I would have
zero problems merging it :-)

-- 
Jens Axboe

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