kib b94d892898 When nullfs mount is forcibly unmounted and nullfs vnode is reclaimed,
get back the leased write reference from the lower vnode.  There is no
other path which can correct v_writecount on the lowervp.

Reported by:	flo
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2013-01-10 18:24:48 +00:00
..