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Date: Tue, 3 Apr 2001 14:20:24 +0200
From: Ingo Oeser <ingo.oeser@informatik.tu-chemnitz.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Andries.Brouwer@cwi.nl, torvalds@transmeta.com, hpa@transmeta.com,
        linux-kernel@vger.kernel.org, tytso@MIT.EDU
Subject: Re: Larger dev_t
Message-ID: <20010403142024.Z8155@nightmaster.csn.tu-chemnitz.de>
In-Reply-To: <20010403120911.B4561@nightmaster.csn.tu-chemnitz.de> <E14kPZz-0007tk-00@the-village.bc.nu>
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In-Reply-To: <E14kPZz-0007tk-00@the-village.bc.nu>; from alan@lxorguk.ukuu.org.uk on Tue, Apr 03, 2001 at 01:06:33PM +0100
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On Tue, Apr 03, 2001 at 01:06:33PM +0100, Alan Cox wrote:
> Device numbers/names have to be constant in order to detect
> disk layout changes across boots.

Names stay constant, but why the NUMBERS? The names should stay
constant and represent the actual layout on each busses (say:
sane hierachic enumeration) of course.

But /dev/ide/host0/bus0/target0/lun0/part1 could get a new device
number on every reboot, right?

I'm sure, I'm missing some important usage of device of device
numers here (not counting the ones listed already), but I don't
know what ;-)

Otherwise it would be too easy to remove static major/minors and
all the fun allocating them. And LANANA would have one thing less
to worry about ;-)

One thing I certainly miss: DevFS is not mandatory (yet).

Thanks & Regards

Ingo Oeser
-- 
10.+11.03.2001 - 3. Chemnitzer LinuxTag <http://www.tu-chemnitz.de/linux/tag>
         <<<<<<<<<<<<     been there and had much fun   >>>>>>>>>>>>
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