PERFORCE change 102141 for review

[Scott Long]

Paolo Pisati wrote:

> http://perforce.freebsd.org/chv.cgi?CH=102141
> 
> Change 102141 by piso at piso_longino on 2006/07/22 12:33:15
> 
> 	Use IF_FAST macro instead of directly checking flags,
> 	and axe an INTR_FAST check in swi_add(): is it possible
> 	for a software interrupt handler to have INTR_FAST defined?
> 	did it make sense at all? 
> 

An swi is an ithread by definition, so INTR_FAST makes no sense to
it.

Scott