Re: HFS Filesystem Support

[Ari Johnson <ari_(_at_)_ari_(_dot_)_dyn_(_dot_)_ml_(_dot_)_org>]

>Now, the problem is taking all the hooks to the Linux kernel and
>translating them to work in the OpenBSD kernel.
>
If you want to see this integrated into the OpenBSD distribution, beware of
the nasty GPL monster.


Yeah.  I don't plan on seeing it ever integrated into the distribution,
but at this point the Linux stuff is what I have to work with, and, having
never coded a filesystem into OpenBSD before, feel that starting with some
working code is a good idea.  Depending on the results of that I may
recode this specifically for OpenBSD so that it can be distributed as part
of the kernel distribution.  I appreciate the warning though. ;)



>What I really need is a kernel hackers' guide like exists for Linux to
>give me a jump start in the right direction.  If anyone knows of such a
>document, or has notes from their filesystem-adding experiences with
>OpenBSD, let me know.
>
The best guide is probably 'The Design and Implementation of the 4.4 BSD
Operating System'.  After that, there's always the source to unionfs,
nullfs, etc.  (all the stuff in /sys/miscfs).


Great fun, that book.  I don't have a copy around, but while I look for
one I'll peruse the stuff in miscfs.  One question though: Say I wrote
this thing, where would I put it?  /sys/miscfs/hfs perhaps?

Thanks again.
  -- Ari