FS impl.

[David Parfitt]

Hi -
  I have been trying to write my own UFS-like filesystem
implementation for fun. I had read somewhere that UFS was developed in
user space (correct me if I'm wrong on that one) and then moved over
to kernel-space. I was wondering if there are any existing facilities
in the kernel source tree that would allow me to develop an fs in user
space easily or with a little tweaking? As of right now, I have to
develop, compile, panic, reboot, debug etc. which is frustrating and
time consuming.

Thanks -
David Parfitt