new version of polling for FreeBSD 6.x

[Fabien THOMAS]

	Hi,

After many years of good services we will stop using FreeBSD 4.x :)
During my performance regression tests under FreeBSD 6.2 i've found  
that polling has lower performance than interrupt.
To solve that issue i've rewritten the core of polling to be more SMP  
ready.

You can find a summary of all my tests and the source code at the  
following address:
http://www.netasq.com/opensource/pollng-rev1-freebsd.tgz

Feel free to ask more detailed information if necessary and report  
any bugs / comments.

Fabien