On Mon, Jun 30, 2003 at 01:11:56PM +1000, Darren Reed wrote:
> Why doesn't pftag_unref() do the deletion when the ref count becomes
> 0 anyway ?  Looking at pftag_purge(), there should be no need for it.

after revisting the code in question I remembered why - pf_tag_purge() 
traversed the list from the end and could prevent ID space 
fragmentation in the typical cases.

However, inspired by this discussion, I changed the ID allocator, and 
it does this job now, even better and last not least faster than 
before. pf_tag_purge() is gone.

Thanks for the inspiration ;-)

-- 
Henning Brauer, BS Web Services, http://bsws.de
hb@bsws.de - henning@openbsd.org
Unix is very simple, but it takes a genius to understand the simplicity.
(Dennis Ritchie)