Andriy Gapon 8cebd0e419 relax an assert in zfsctl_snapdir_lookup to match r323578
Since r323578 we may remove the last reference to a covered vnode with
vrele() instead of vput().  So, v_usecount may be decremented before
the vnode is locked and zfsctl_snapdir_lookup may "catch" the vnode
with v_usecount of zero and v_holdcnt of one.

PR:		225795
Reported by:	asomers
MFC after:	1 week
2018-02-19 08:55:22 +00:00
..