Messages in this thread | | | Subject | Re: Migrating to larger numbers | Date | Mon, 7 Jun 1999 22:13:13 +0100 (BST) | From | Alan Cox <> |
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> 4096 is the part that worries me, it doesn't seem like an unreasonable > number. Basically, I'm worried that with 32 bits we'll end up with a > split that will be problematic on both ends for some device.
There are a lot of devices that can be multiplexed. With a million minor numbers you can sanely do things like "industrial controllers all live on major 395". We also get back the 7 majors for each block subsystem we dont need any more
And we do need to reclaim a few of the bogus majors issued now for things that should be using generic APIs or misc devices.
> Then we can hope that NFS v2 (v3 as well?) are dead or dying when this > becomes a problem.
I'd give NFSv2 another 30 years. I believe NFSv4 draft is also 32bit
Alan
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