1#! /bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
30#
31
32. $STF_SUITE/include/libtest.shlib
33. $STF_SUITE/tests/functional/cli_root/zfs_rollback/zfs_rollback_common.kshlib
34. $STF_SUITE/tests/functional/snapshot/snapshot.cfg
35
36
37#
38# DESCRIPTION:
39# Verify that rollbacks succeed when there are nested file systems.
40#
41# STRATEGY:
42# 1) Snapshot an empty file system and rollback
43# 2) Create a file in the file system
44# 3) Rollback the file system to empty
45# 4) Create a nested file system with the same name as the file created in (2)
46# 5) Verify a rollback succeeds
47#
48
49verify_runnable "both"
50
51function cleanup
52{
53	typeset snap=""
54	typeset fs=""
55
56	export __ZFS_POOL_RESTRICT="$TESTPOOL"
57	log_must zfs mount -a
58	unset __ZFS_POOL_RESTRICT
59
60	for snap in "$SNAPPOOL.1" "$SNAPPOOL"
61	do
62		snapexists $snap
63		[[ $? -eq 0 ]] && \
64			log_must zfs destroy $snap
65	done
66
67	for fs in "$TESTPOOL/$TESTFILE/$TESTFILE.1" "$TESTPOOL/$TESTFILE"
68	do
69		datasetexists $fs
70		[[ $? -eq 0 ]] && \
71			log_must zfs destroy -r $fs
72	done
73
74	[[ -e /$TESTPOOL ]] && \
75		log_must rm -rf $TESTPOOL/*
76}
77
78log_assert "Verify rollback succeeds when there are nested file systems."
79
80log_onexit cleanup
81
82log_must zfs snapshot $SNAPPOOL
83log_must zfs rollback $SNAPPOOL
84log_mustnot zfs snapshot $SNAPPOOL
85
86log_must touch /$TESTPOOL/$TESTFILE
87sync_pool $TESTPOOL
88
89log_must zfs rollback $SNAPPOOL
90log_must zfs create $TESTPOOL/$TESTFILE
91
92log_must zfs rollback $SNAPPOOL
93
94log_note "Verify rollback of multiple nested file systems succeeds."
95log_must zfs snapshot $TESTPOOL/$TESTFILE@$TESTSNAP
96log_must zfs snapshot $SNAPPOOL.1
97
98export __ZFS_POOL_RESTRICT="$TESTPOOL"
99log_must zfs unmount -a
100log_must zfs mount -a
101unset __ZFS_POOL_RESTRICT
102
103log_must touch /$TESTPOOL/$TESTFILE/$TESTFILE.1
104
105log_must zfs rollback $SNAPPOOL.1
106
107log_pass "Rollbacks succeed when nested file systems are present."
108