linux-kernel - Re: [PATCH] Add quick erase format option

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Message-ID: <1281343038.12908.25.camel@localhost>
Date:	Mon, 09 Aug 2010 09:37:18 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	"stefani@...bold.net" <stefani@...bold.net>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	Artem Bityutskiy <Artem.Bityutskiy@...ia.com>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	Artem Bityutskiy <dedekind1@...il.com>
Subject: Re: [PATCH] Add quick erase format option

On Mon, 2010-08-09 at 09:25 +0100, stefani@...bold.net wrote:
> From: Stefani Seibold <stefani@...bold.net>
> 
> This patch add a quick format option which skips erasing of already erased
> flash blocks. This is useful for first time production environments where
> the flash arrived erased.
> 
> Signed-off-by: Stefani Seibold <stefani@...bold.net> 

This scares me, given the lengths we had to go to in JFFS2 to cope with
blocks which *look* like they're erased, but which actually start losing
data as soon as you start writing to them because the erase didn't
complete.

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@...el.com                              Intel Corporation


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