leverage pseudofs for autofs?

[Dag-Erling Smørgrav]

Alfred Perlstein <alfred at freebsd.org> writes:
> The basic requirements of autofs are:
>
> 1) In-memory filesystem.
> 2) if a lookup is done for a non-existant dir
>    entry then block the process.  (unless it's
>    "special" ie. the actual automounter).
> 3) for readdir, do some magic to send requests
>    back to userspace to "fill in" a dynamic listing.
>    basically, vop_readdir will optionally dispatch
>    back to userland for this.
>
> I'd like to reduce code duplication.  Pseudofs looks
> like a great starting point. 

You can probably use the pseudofs code as a starting point for autofs,
but I don't think it's a good idea to build autofs on top of pseudofs,
unless you start by greatly generalizing pseudofs: instead of
pfstype_procdir, you'd have pfstype_dynamic and custom callbacks to
handle readdir and lookup.  That actually sounds like a good idea...  a
lot of work, though.

DES
-- 
Dag-Erling Smørgrav - des at des.no