On Mon, Aug 26, 2013 at 04:27:59PM +0200, Andre Oppermann wrote: ... > > 1. lle lock to rmlock. > > 2. if_addr and IN_ADDR locks to rmlocks. > > 3. routing table locking (rmlocks, and by doing away with rtentry locks and > refcounting > through copy-out on lookup and prohibition of having any pointers into > the rtable).
re. the last item, the problem is that we need to access *ifp after the route lookup, and this cannot be solved with a copy-on-lookup (I guess at the moment the rte has a refcounted pointer to the ifp). This is why i argued that it might be useful to cache into the socket a refcounted pointer into the ifp (or rte) and update it lazily (periodically or through generation counters). cheers luigi _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
