Subject: Re: Work-in-progress "wedges" implementation
To: Eric Haszlakiewicz <erh@jodi.nimenees.com>
From: Jason Thorpe <thorpej@shagadelic.org>
List: tech-kern
Date: 09/24/2004 17:31:54
--Apple-Mail-28--346485842
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=US-ASCII; format=flowed
On Sep 23, 2004, at 9:29 AM, Eric Haszlakiewicz wrote:
> On Wed, Sep 22, 2004 at 04:35:37PM -0700, Jason Thorpe wrote:
>> Oh. Well, eventually a whole-disk e.g. /dev/sd0 will be there. The
>> wedges are also named /dev/dk0, /dev/dk1, etc. The /dev/dk/WegeName
>> names are really intended to just be aliases. If the wedge doesn't
>> have a name, you can still access via the /dev/dkN path.
>
> is that /dev/sd0 as a directory, to make it possible to access the
> wedges on a particular device?
> e.g. /dev/sd0/whole-disk, /dev/sd0/wedge0, /dev/sd0/wedge1, etc..?
Well, you can't have both a file called "sd0" and a directory called
"sd0" in the same place...
> I saw someone mention using a full dmesg path (/dev/foo/umass1/sd2/...)
> but since device names are unique (can't have sd2 at umass1 and sd2 at
> umass4)
> that doesn't seem necessary.
Full dmesg path appeals to me in a lot of ways... but, then again,
we're digressing into the devfs discussion that I'm trying to avoid for
the moment :-)
-- Jason R. Thorpe <thorpej@shagadelic.org>
--Apple-Mail-28--346485842
content-type: application/pgp-signature; x-mac-type=70674453;
name=PGP.sig
content-description: This is a digitally signed message part
content-disposition: inline; filename=PGP.sig
content-transfer-encoding: 7bit
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (Darwin)
iD8DBQFBVLx6OpVKkaBm8XkRAtwjAKDDiPUixLvGrfVSZrj0jnhld3jaZACgpqPY
shhdzT6Drc6hlQOFsbiSGKA=
=SF+V
-----END PGP SIGNATURE-----
--Apple-Mail-28--346485842--