To: linux-kernel@vger.kernel.org
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH] print_dev_t for 2.6.0-test1-mm
Date: 16 Jul 2003 15:10:19 -0700
Organization: Transmeta Corporation, Santa Clara CA
Message-ID: <bf4igb$mip$1@cesium.transmeta.com>
References: <20030716184609.GA1913@kroah.com> <20030716141320.5bd2a8b3.akpm@osdl.org> <20030716213451.GA1964@win.tue.nl> <20030716143902.4b26be70.akpm@osdl.org>
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Followup to:  <20030716143902.4b26be70.akpm@osdl.org>
By author:    Andrew Morton <akpm@osdl.org>
In newsgroup: linux.dev.kernel
>
> Andries Brouwer <aebr@win.tue.nl> wrote:
> >
> > On Wed, Jul 16, 2003 at 02:13:20PM -0700, Andrew Morton wrote:
> > 
> > > The new dev_t encoding is a bit weird because we of course continue to
> > > support the old 8:8 encoding.  I think the rule is: "if the top 32-bits are
> > > zero, it is 8:8, otherwise 32:32".  We can express this nicely with
> > > "%u:%u".
> > 
> > 16-bit only: 8:8, otherwise 32-bit only: 16:16, otherwise 32:32.
> > 
> 
> Why do we need the 16:16 option?
> 

We needs 32-bit for NFSv2, but I thought it was going to be 12:20.

	-hpa
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