linux-kernel - Re: [PATCH 00/16] f2fs: introduce flash-friendly file system

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Message-ID: <2456603.OlK4shzgJ4@wuerfel>
Date:	Fri, 12 Oct 2012 20:58 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Lukáš Czerner <lczerner@...hat.com>,
	Jaegeuk Kim <jaegeuk.kim@...sung.com>,
	'Namjae Jeon' <linkinjeon@...il.com>,
	'Vyacheslav Dubeyko' <slava@...eyko.com>,
	'Marco Stornelli' <marco.stornelli@...il.com>,
	'Jaegeuk Kim' <jaegeuk.kim@...il.com>,
	'Al Viro' <viro@...iv.linux.org.uk>, tytso@....edu,
	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	chur.lee@...sung.com, cm224.lee@...sung.com,
	jooyoung.hwang@...sung.com, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 00/16] f2fs: introduce flash-friendly file system

On Wednesday 10 October 2012 11:36:14 David Woodhouse wrote:
> The whole thing is silly. What we actually want on an embedded system is
> to ditch the FTL altogether and have direct access to the NAND. Then we
> can know our file system is behaving optimally. And we don't need
> hacks like TRIM to try to make things a little less broken.

I think it's safe to say that the times for raw flash in consumer devices
are over, whether we like it or not. Even if we could go back to MTD
for internal storage, we'd still need something better than what we
have for removable flash storage such as USB and SD.

(and I know that xD cards are basically raw flash, but have you tried
to buy one recently?)

	Arnd
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