a proposed callout API

[Julian Elischer]

Julian Elischer wrote:
> John Baldwin wrote:


> I've mentionned several times that I think making both the spinlock and 
> Mutex code use the same mutex structure is a problem because one cannot 
> do any run-time checking to ensure that the correct call is being used..

s/run-time/compile-time/


> one must instead do runtime checking which is slower and may not hit all 
> unusual cases (except in unusual circumstances).
>