K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2019-02-08T08:20:18.697056Z
K 7
svn:log
V 323
Un null_vptocnp(), cache vp->v_mount and use it for null_nodeget() call.

The vp vnode is unlocked during the execution of the VOP method and
can be reclaimed, zeroing vp->v_data.  Caching allows to use the
correct mount point.

Reported and tested by:	pho
PR: 235549
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

END