zfsctl_snapdir_lookup: obtain a snapname in the remount case

... which is triggered if somebody did regular umount on a snapshot mount. Reviewed by: Matthew Ahrens <mahrens@delphix.com> MFC after: 20 days
2012-11-04 14:43:15 +00:00 · 2012-11-04 14:43:15 +00:00 · e1ad987110
commit e1ad987110
parent c6f32e8bf8
1 changed files with 1 additions and 0 deletions
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c
@ -1002,6 +1002,7 @@ zfsctl_snapdir_lookup(ap)
 			 * The snapshot was unmounted behind our backs,
 			 * try to remount it.
 			 */
+			VERIFY(zfsctl_snapshot_zname(dvp, nm, MAXNAMELEN, snapname) == 0);
 			goto domount;
 		} else {
 			/*