Re: zfs module not loaded anymore on e.g MINIMAL

On Thu, Mar 19, 2026 at 10:05 AM Dag-Erling Smørgrav <des@freebsd.org>
wrote:

> Dag-Erling Smørgrav <des@FreeBSD.org> writes:
> > Warner Losh <imp@bsdimp.com> writes:
> > > Any reason zstd can't be a module?
> > I had the same thought but it's going to take a bit of work.  We'll have
> > to split up sys/kern/subr_compress.c into separate files for each
> > backend (currently gzio and zstdio), add module Makefiles, and figure
> > out how to make dumps dynamically use whatever compression is available.
>
> Actually I think this last bit is already in place.  We just need to
> have each compression method register with subr_compress on load (and
> unregister on unload, which I don't think subr_compress currently
> supports).  We also need to keep a running count of compression /
> decompression contexts to prevent unloading a method while it's in use.
>

So I guess go ahead with the kernel config changes (though I don't like
having to
do that, there's no easy alternative). I wonder what the best way to
document this so
that it doesn't get list in the future...

Warner