K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2017-08-01T23:14:38.067736Z
K 7
svn:log
V 112
Amend r321884 to check the refcount and update the class with w_mtx held.

Reviewed by:	jhb
X-MFC with:	r321884

END