Re: Migrating to larger numbers

Richard Gooch (rgooch@atnf.csiro.au)
Tue, 8 Jun 1999 22:40:09 +1000


Raul Miller writes:
> Albert D. Cahalan <acahalan@cs.uml.edu> wrote:
> > If you have a solution to the above, it can be used to fit everything
> > into 32 bits. I suggest dynamic numbers with devfs, but that need not
> > be the only way to solve the problem.
>
> Dynamic numbers will break NFS guarantees when the server reboots.
> [And breaking NFS was one of the big arguments for not going to 64 bits.]
> Admittedly, not always -- just at the worst possible times.
>
> A proper solution to the generic problem would be to associate a device
> number with a configuration string via user space.

Devfs doesn't mean dynamic device numbers. In fact, all drivers in the
device patch still have their old device numbers. Compatibility,
compatibility, compatibility.

Regards,

Richard....

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