K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2017-04-05T17:11:39.196679Z
K 7
svn:log
V 510
Handle possible vnode reclamation after ncl_vinvalbuf() call.

ncl_vinvalbuf() might need to upgrade vnode lock, allowing the vnode
to be reclaimed by other thread.  Handle the situation, indicated by
the returned error zero and VI_DOOMED iflag set, converting it into
EBADF.  Handle all calls, even where the vnode is exclusively locked
right now.

Reviewed by:	markj, rmacklem
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
X-Differential revision:	https://reviews.freebsd.org/D10241

END