Re: [PATCH v3 4/5] clocksource: Enable clocksource_cyc2ns() to coverbig cycles

[H. Peter Anvin]

On 03/06/2013 06:09 AM, Thomas Gleixner wrote:
> 
> This breaks everything which does not have a 64/32bit divide
> instruction. And you can't replace it with do_div() as that would
> impose massive overhead on those architectures in the fast path.
> 

Could we do the same kind of scaling-by-multiplication that we do in
kernel/time.c for this?

	-hpa


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