Since r202933, kthread_suspend_check() takes no arguments.  Update the
example to match.

MFC after:	3 days
Move the "retry:" label so that the calls to m_pullup() are
not done after the call to m_defrag(). This fixes a problem
where m_pullup() would prepend an mbuf to the list created
by m_defrag() making the chain greater than 32 again.

Tested by:	rcarter@pinyon.org
Reviewed by:	yongari, jfv
MFC after:	2 weeks
Add a bandaid to fix GCC build (on sparc64 et al).