- do NOT attempt to unmount the cinfofs right now
- do NOT attempt to unload the cinfofs module
- do NOT run cinfo recursively on /cacheinfo
- probably very SMP-unsafe
- probably leaks memory like a sieve

WARTS
-----

We do nasty stuff on the generic_ip field in the 'u' union in the inode
struct. This is because I do not want to touch the kernel code just yet and
totally be a module