linux-kernel - Re: bdi: register sysfs bdi device only once per queue

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Message-Id: <1225923040.3882.0.camel@macbook.infradead.org>
Date:	Wed, 05 Nov 2008 23:10:40 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Peter Zijlstra <peterz@...radead.org>, kay.sievers@...y.org,
	folkert@...heusden.com, jacmet@...site.dk,
	linux-kernel@...r.kernel.org
Subject: Re: bdi: register sysfs bdi device only once per queue

On Wed, 2008-11-05 at 12:10 -0800, Andrew Morton wrote:
> > > Devices which share the same queue, like floppies and mtd devices,
> > > get registered multiple times in the bdi interface, but bdi accounts
> > > only the last registered device of the devices sharing one queue.
> > 
> > David, is there any reason the mtd devices do this?
> 
> [tap tap - is this thing turned on?]

No particular reason. It's been done that way since the dawn of time,
when it was perfectly normal. Nobody's yet bothered to change that, when
changing the rules.

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

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