> >>Why have splr semantics? That is, it raises to splsoftclock if current
> >>priority is lower, else doesn't fiddle with it.
> 
> splsoftclock() has always had spllower() semantics, and its main users
> (kern_clock.c and kern_time.c) depend on this.

Okay. Then Justin's suggestion of splcallout with splr semantics makes
sense?


> 
> FreeBSD has a precedent of not changing poor spl names because the change
> would be confusing: splnet() should be named splsoftnet() and splimp()
> should be named splnet() as in NetBSD.


I'm not sure what this means. I guess the gist is "don't change
splsoftclock".





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