Re: [PATCH 2.6.14] X86_64 delay resolution

[Andi Kleen]

Ross Biro <ross.biro@xxxxxxxxx> writes:

> On x86_64 smp systems, we noticed that the amount of time udelay would
> spin for varied from cpu to cpu.  In our test case, udelay(10) would
> only delay for 9.7us on some cpus while on others it would delay for
> the full 10us.  We tracked the problem down to an unnecessary attempt
> to avoid arithmetic overflow.  Here's a fix complete with an overly
> verbose comment.

I applied it without the comment and without the extra sets
of brackets. Please submit future x86-64 patches directly
to me and also Signed them off and use toplevel diffs.

Thanks,
-Andi
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