On Mon, 26 Jun 2000, Philipp Rumpf wrote:
> On Mon, Jun 26, 2000 at 11:15:44AM +0100, David Woodhouse wrote:
> > prumpf@uzix.org said:
> > > Yes. schedule() out of a zero-refcount module is a bug. In fact,
> > > it's quite easy to make it a BUG() as well:
> >
> > That's nice but not sufficient - just _being_ in a zero-refcount module is a
> > bug, if you don't have the BKL or the unload_lock.
>
> Most of this thread is/was about how you can make it perfectly legal (if
> you synchronize things across all CPUs for module unload). Right now I
> agree it's always a bug but I don't think anyone disagrees the current
> (pre-inc/dec use count in upper layer) mechanisms are broken.
Erm? try_inc_mod_count()/__MOD_DEC_USE_COUNT() in upper layer looks OK
with me. Care to give the reasons why that is broken?
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