Re: [PATCH] x86: enable preemption in delay

[Alan Cox]

> And what happens when we have 10GHz boxes that can do migration in 1us,
> and the delay that is asked for is 2us. We can return early.  I don't like
> to place assumptions of this kind that can hurt with future hardware
> enhancements.

Then in the hypothetical future you fix it, and for now its clearly
documented. Th preempt botch in the current tree breaks all sorts of
existing real world setups so needs to go. (and we have people who do
stuff like mdelay(150);

Alan
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