K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2020-10-09T19:10:00.099339Z
K 7
svn:log
V 359
cache: fix vexec panic when racing against vgone

Use of dead_vnodeops would result in a panic instead of returning the intended
EOPNOTSUPP error.

While here make sure to abort, not just try to return a partial result.
The former allows the regular lookup to restart from scratch, while the latter
makes it stuck with an unusable vnode.

Reported by:	kevans

END