--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usr/src/test/zfs-tests/tests/functional/cli_root/zfs_upgrade/zfs_upgrade_005_pos.ksh	Wed Dec 05 22:04:50 2012 -0500
@@ -0,0 +1,104 @@
+#!/usr/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 2009 Sun Microsystems, Inc.  All rights reserved.
+# Use is subject to license terms.
+#
+#
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/cli_root/zfs_upgrade/zfs_upgrade.kshlib
+
+#
+# DESCRIPTION:
+#	Executing 'zfs upgrade [-V version] -a' command succeeds,
+#	it upgrade all filesystems to specific or current version.
+#
+# STRATEGY:
+# 1. Prepare a set of datasets which contain old-version and current version.
+# 2. Execute 'zfs upgrade [-V version] -a', verify return 0,
+# 3. Verify all the filesystems be updated as expected.
+#
+
+verify_runnable "both"
+
+function cleanup
+{
+	if datasetexists $rootfs ; then
+		log_must $ZFS destroy -Rf $rootfs
+	fi
+	log_must $ZFS create $rootfs
+}
+
+function setup_datasets
+{
+	datasets=""
+	for version in $ZFS_ALL_VERSIONS ; do
+		typeset verfs
+		eval verfs=\$ZFS_VERSION_$version
+		typeset current_fs=$rootfs/$verfs
+		typeset current_snap=${current_fs}@snap
+		typeset current_clone=$rootfs/clone$verfs
+		log_must $ZFS create -o version=${version} ${current_fs}
+		log_must $ZFS snapshot ${current_snap}
+		log_must $ZFS clone ${current_snap} ${current_clone}
+
+		for subversion in $ZFS_ALL_VERSIONS ; do
+			typeset subverfs
+			eval subverfs=\$ZFS_VERSION_$subversion
+			log_must $ZFS create -o version=${subversion} \
+				${current_fs}/$subverfs
+		done
+		datasets="$datasets ${current_fs}"
+	done
+}
+
+log_assert "Executing 'zfs upgrade [-V version] -a' command succeeds."
+log_onexit cleanup
+
+rootfs=$TESTPOOL/$TESTFS
+
+typeset datasets
+
+typeset newv
+for newv in "" "current" $ZFS_VERSION; do
+	setup_datasets
+	if [[ -n $newv ]]; then
+		opt="-V $newv"
+		if [[ $newv == current ]]; then
+			newv=$ZFS_VERSION
+		fi
+	else
+		newv=$ZFS_VERSION
+	fi
+
+	export __ZFS_POOL_RESTRICT="$TESTPOOL"
+	log_must $ZFS upgrade $opt -a
+	unset __ZFS_POOL_RESTRICT
+
+	for fs in $($ZFS list -rH -t filesystem -o name $rootfs) ; do
+		log_must check_fs_version $fs $newv
+	done
+	cleanup
+done
+
+log_pass "Executing 'zfs upgrade [-V version] -a' command succeeds."