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Message-Id: <1219827692.7107.170.camel@pmac.infradead.org>
Date:	Wed, 27 Aug 2008 10:01:32 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Tim Anderson <tanderson@...sta.com>, dedekind@...radead.org,
	Bruce_Leonard@...inc.com,
	'Andrew Morton' <akpm@...ux-foundation.org>,
	linux-mtd-bounces@...ts.infradead.org,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	'Bruce Leonard' <brucle@...thlink.net>
Subject: Re: [PATCH 2/2][MTD] Add support for > 2GiB MTD devices

On Wed, 2008-08-27 at 09:39 +0100, Alan Cox wrote:
> On Tue, 26 Aug 2008 23:20:46 -0700
> "Tim Anderson" <tanderson@...sta.com> wrote:
> 
> > Artem,
> > 
> > I see your point. Ioctls are going away after all.
> 
> I don't know where that stupid story keeps coming from. Ioctl is alive
> and well and there are more not less of them. There are lots of things
> you *cannot* do with sysfs, including synchronization and handling
> many kinds of changes to objects that can appear and disappear. Ditto
> there are problems with getting a consistent snapshot via sysfs because
> you can't atomically read multiple fields.
> 
> So please stop this 'ioctls are going away' stuff, its bunkum.

True, and we'll definitely need a new MEMERASE64 ioctl. But for the
_informational_ parts, those can happily be done through sysfs.

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



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