Re: System unique identifier.....

tytso@mit.edu
Tue, 22 Jun 1999 12:37:54 -0400


Date: Mon, 21 Jun 1999 11:19:27 -0700 (PDT)
From: Matthew Jacob <mjacob@feral.com>

This is all well and good, and yes I'll definitely use this. The question
though is "Is this available to a driver as a linux driver ABI type
call?". The answer has to be "not yet" I'd guess.

Are you looking for the ability to generate a 128 UUID in kernel space?
If so, my first reaction would be why.... a UUID is needed when you need
an ID which is universally unique across all time and all space and all
machines in the world. What are the properties of an ID which you are
looking for, and why does the driver need to assign such a thing?
128-bit UUID are rather heavyweight objects, and if you don't need all
of the properties which they guarantee, something ligherweight might be
more appropriate.

- Ted

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