Subject: Re: bdi: register sysfs bdi device only once per queue
From: David Woodhouse <dwmw2@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>, kay.sievers@vrfy.org,
       folkert@vanheusden.com, jacmet@sunsite.dk, linux-kernel@vger.kernel.org
In-Reply-To: <20081105121015.75f497d1.akpm@linux-foundation.org>
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	 <20081105121015.75f497d1.akpm@linux-foundation.org>
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Date: Wed, 05 Nov 2008 23:10:40 +0100
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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@intel.com                              Intel Corporation

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