Re: [CFT] more kdev_t-ectomy

[H. Peter Anvin]

Followup to:  <[e-mail]>
By author:    Andries Brouwer <[e-mail]>
In newsgroup: linux.dev.kernel
> 
> Of course it may be possible to avoid kernel-internal numbers altogether.
> Sometimes that is an improvement, sometimes not. Pointers are more
> complicated than numbers - they point at something that must be allocated
> and freed and reference counted. A number is like a pointer without the
> reference counting.
> 

I guess the question is: is there any point to have three forms --
with necessary conversions between them -- or is it simpler to have
two forms and just use the more awkward dev_t form everywhere?  The
only use for dev_t's in the kernel should be getting them from or
shipping them off to userspace at some point, so it might be just as
easily to do the conversion directly -- macroized, of course.

We do need a dev32_t for NFSv2 et al, though.

	-hpa
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