K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2014-08-29T09:02:01.744075Z
K 7
svn:log
V 181
Add function and wrapper to switch lockmgr and vnode lock back to
auto-promotion of shared to exclusive.

Tested by:	hrs, pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

END