Kirkland: ZFS licensing and Linux

Dustin Kirkland justifiesUbuntu's plans to ship the ZFS filesystem kernel module. "Andzfs.ko, as a self-contained file system module, is clearly not a derivativework of the Linux kernel but rather quite obviously a derivative work ofOpenZFS and OpenSolaris. Equivalent exceptions have existed for manyyears, for various other stand alone, self-contained, non-GPL and evenproprietary (hi, nvidia.ko) kernel modules."