[openib-general] possible oops when callingipoib_neigh_destructor while ipoib mod ule is down.

[Roland Dreier]

    Fab> Maybe I'm clueless (quite likely), but why not just have each
    Fab> neighbour structure take a reference on the module when it is
    Fab> created?  The destructor would release that reference.  That
    Fab> should solve races involved with cleaning up, as well as
    Fab> ensuring that the module is still around for the destructor
    Fab> to get invoked.

Sorry, I think I read this backwards before.  But if each neighbour
has a reference on the IPoIB module then it will be nearly impossible
to unload the IPoIB module (which solves the problem but again in not
a very nice way).

 - Roland