Konstantin Belousov 6f73b583d9 Force nullfs vnode reclaim after unlinking, to potentially unlink
lower vnode.  Otherwise, reference to the lower vnode from the upper
one prevents final unlink.

PR:	178238
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-12-30 19:49:22 +00:00
..