Re: [Xen-devel] [patch 14/33] xen: xen time implementation

[Jeremy Fitzhardinge]

Andi Kleen wrote:
>> I once had some code in there to do that, implemented in very boneheaded
>> way with a spinlock to protect the "last time returned" variable.  I
>> expect there's a better way to implement it.
>>     
>
> But any per CPU setup likely needs this to avoid non monotonicity 

Yeah.  The point I didn't quite make was that this should be something
that the clock core should handle rather than dealing with it in every
clocksource.

    J

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