--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usr/src/test/zfs-tests/tests/functional/cli_root/zfs_unmount/zfs_unmount_005_pos.ksh	Wed Dec 05 22:04:50 2012 -0500
@@ -0,0 +1,109 @@
+#!/bin/ksh -p
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or http://www.opensolaris.org/os/licensing.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+# Use is subject to license terms.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/cli_root/zfs_unmount/zfs_unmount.kshlib
+
+#
+# DESCRIPTION:
+# If invoke "zfs unmount" with a specific filesystem|mountpoint
+# that have been mounted, but it's currently in use,
+# it will fail with a return code of 1
+# and issue an error message.
+# But unmount forcefully will bypass this restriction and
+# unmount that given filesystem successfully.
+#
+# STRATEGY:
+# 1. Make sure that the ZFS filesystem is mounted.
+# 2. Change directory to that given mountpoint.
+# 3. Unmount the file system using the various combinations.
+#	- Without force option. (FAILED)
+#	- With force option. (PASS)
+# 4. Unmount the mountpoint using the various combinations.
+#	- Without force option. (FAILED)
+#	- With force option. (PASS)
+# 5. Verify the above expected results of the filesystem|mountpoint.
+#
+
+verify_runnable "both"
+
+
+set -A cmd "umount" "unmount"
+set -A options "" "-f"
+set -A dev "$TESTPOOL/$TESTFS" "$TESTDIR"
+
+function do_unmount_multiple #options #expect
+{
+	typeset opt=$1
+	typeset -i expect=${2-0}
+
+	typeset -i i=0
+	typeset -i j=0
+
+	while (( i <  ${#cmd[*]} )); do
+		j=0
+		while (( j < ${#dev[*]} )); do
+			mounted ${dev[j]} || \
+				log_must $ZFS $mountcmd ${dev[0]}
+
+			cd $TESTDIR || \
+				log_unresolved "Unable change dir to $TESTDIR"
+
+			do_unmount "${cmd[i]}" "$opt" \
+				"${dev[j]}" $expect
+
+			cleanup
+
+			((j = j + 1))
+		done
+
+		((i = i + 1))
+	done
+}
+
+log_assert "Verify that '$ZFS $unmountcmd <filesystem|mountpoint>' " \
+	"with a filesystem which mountpoint is currently in use " \
+	"will fail with return code 1, and forcefully will succeeds as root."
+
+log_onexit cleanup
+
+cwd=$PWD
+
+typeset -i i=0
+
+while (( i <  ${#options[*]} )); do
+	if [[ ${options[i]} == "-f" ]]; then
+		do_unmount_multiple "${options[i]}"
+	else
+		do_unmount_multiple "${options[i]}" 1
+	fi
+        ((i = i + 1))
+done
+
+log_pass "'$ZFS $unmountcmd <filesystem|mountpoint>' " \
+	"with a filesystem which mountpoint is currently in use " \
+	"will fail with return code 1, and forcefully will succeeds as root."