svn commit: r211157 - in head/sys: modules modules/if_carp net netinet netinet6

[Will Andrews]

On Wed, Aug 11, 2010 at 8:34 AM, Pawel Jakub Dawidek <pjd at freebsd.org> wrote:
> Wouldn't it be better to allow unload only if there are no carp(4)
> interfaces? I'd be glad to destroy my carp interfaces before unloading
> the module, but recompiling the kernel to unload it? Not so much.

Well, in theory, if_clone_detach() is supposed to do that, and it's
called during the unload process prior to NULLing the fp's.  But I've
been unable to verify whether that is enough to prevent races.

--Will.