+#!/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 https://opensource.org/licenses/CDDL-1.0.
+# 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 (c) 2023 by iXsystems, Inc. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/cli_root/zfs_set/zfs_set_common.kshlib
+
+#
+# DESCRIPTION:
+# 'zfs set -u' should update the mountpoint, sharenfs and sharesmb
+# properties without mounting and sharing the dataset. Validate the
+# bevaior while dataset is mounted and unmounted.
+#
+# STRATEGY:
+# 1. Confirm dataset is currently mounted
+# 2. Update the mountpoint with -u flag
+# 3. Confirm mountpoint property is updated with new value
+# 4. Confirm dataset is still mounted at previous mountpoint
+# 5. Unmount the dataset
+# 6. Confirm dataset is unmounted
+# 7. Mount the dataset
+# 8. Confirm dataset is mounted at new mountpoint, that was set with -u flag.
+# 9. Update and mount the dataset at previous mountpoint.
+# 10. Unmount the dataset
+# 11. Update mountpoint property with zfs set -u
+# 12. Confirm dataset is not mounted
+# 13. Update sharenfs property with zfs set -u
+# 14. Confirm dataset is not mounted
+# 15. Update sharesmb property with zfs set -u
+# 16. Confirm dataset is not mounted
+# 17. Mount the dataset and confirm dataset is mounted at new mountpoint
+#
+
+verify_runnable "both"
+
+function cleanup
+{
+ log_must zfs set sharenfs=off $TESTPOOL/$TESTFS
+ if is_linux; then
+ log_must zfs set sharesmb=off $TESTPOOL/$TESTFS
+ fi
+ rm -r $newmpt
+}
+
+log_assert "'zfs set -u' sets the mountpoint and share properties without " \
+ "mounting the dataset"
+log_onexit cleanup
+
+oldmpt=$(get_prop mountpoint $TESTPOOL/$TESTFS)
+newmpt=$TEST_BASE_DIR/abc
+
+# Test while dataset is mounted
+log_must ismounted $TESTPOOL/$TESTFS
+log_must zfs set -u mountpoint=$newmpt $TESTPOOL/$TESTFS
+log_must check_user_prop $TESTPOOL/$TESTFS mountpoint $newmpt
+log_must eval "[[ "$(mount | grep $TESTPOOL/$TESTFS | awk '{print $3}')" == $oldmpt ]]"
+log_must zfs unmount $TESTPOOL/$TESTFS
+log_mustnot ismounted $TESTPOOL/$TESTFS
+log_must zfs mount $TESTPOOL/$TESTFS
+log_must eval "[[ "$(mount | grep $TESTPOOL/$TESTFS | awk '{print $3}')" == $newmpt ]]"
+
+# Test while dataset is unmounted
+log_must zfs set mountpoint=$oldmpt $TESTPOOL/$TESTFS
+log_must ismounted $TESTPOOL/$TESTFS
+log_must zfs unmount $TESTPOOL/$TESTFS
+log_must zfs set -u mountpoint=$newmpt $TESTPOOL/$TESTFS
+log_mustnot ismounted $TESTPOOL/$TESTFS
+log_must zfs set -u sharenfs=on $TESTPOOL/$TESTFS
+log_mustnot ismounted $TESTPOOL/$TESTFS
+if is_linux; then
+ log_must zfs set -u sharesmb=on $TESTPOOL/$TESTFS
+ log_mustnot ismounted $TESTPOOL/$TESTFS
+fi
+log_must zfs mount $TESTPOOL/$TESTFS
+log_must check_user_prop $TESTPOOL/$TESTFS mountpoint $newmpt
+log_must eval "[[ "$(mount | grep $TESTPOOL/$TESTFS | awk '{print $3}')" == $newmpt ]]"
+
+log_must zfs set mountpoint=$oldmpt $TESTPOOL/$TESTFS
+log_must ismounted $TESTPOOL/$TESTFS
+
+log_pass "'zfs set -u' functions correctly"