Re: 32bit dev_t

From: Alan (
Date: Tue Jan 21 2003 - 17:33:05 EST

On Tue, 2003-01-21 at 21:29, Steven Dake wrote:
> Joel,
> Linux doesn't really need a 32 bit kdev_t structure to support 1000
> disks. There is plenty of device space available to support over 1500
> disks by modifying the linux scsi layer.

You run out of assigned major/minor numbers. There is a sick hack that
steals other device idents but thats not usable in a production environment.
32bit dev_t IMHO is essential to 2.6. Essential enough that if its not in
the base 2.6 all the vendors have to get together and issue a Linus
incompatible but common 32bit dev_t interface.

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