Re: [RFC, patch] i386: vgetcpu(), take 2

Ingo wrote:
> it's useful in terms of userspace uniformity.

Yes.  It's an important property of Linux that it
provides a common, portable API for all arch's,
except where the obvious semantics (not performance)
of a call are necessarily arch-specific.

Just coding up system calls for those arch's that
happen to run a particular call super-fast, even
though the call makes logical sense on all arch's,
would lead to API chaos and impede application
portability.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <[email protected]> 1.925.600.0401
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References:
- [RFC, patch] i386: vgetcpu(), take 2
  - From: Chuck Ebbert <[email protected]>
- Re: [RFC, patch] i386: vgetcpu(), take 2
  - From: Ingo Molnar <[email protected]>
- Re: [RFC, patch] i386: vgetcpu(), take 2
  - From: Paul Jackson <[email protected]>
- Re: [RFC, patch] i386: vgetcpu(), take 2
  - From: Andi Kleen <[email protected]>
- Re: [RFC, patch] i386: vgetcpu(), take 2
  - From: Ingo Molnar <[email protected]>

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