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]
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20# CDDL HEADER END
21#
22
23#
24# Copyright 2008 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# Copyright 2016 Nexenta Systems, Inc.
31#
32
33. $STF_SUITE/include/libtest.shlib
34. $STF_SUITE/tests/functional/zvol/zvol_common.shlib
35
36#
37# DESCRIPTION:
38# Verify the ability to take snapshots of zvols used as dump or swap.
39#
40# STRATEGY:
41# 1. Create a ZFS volume
42# 2. Set the volume as dump or swap
43# 3. Verify creating a snapshot of the zvol succeeds.
44#
45
46verify_runnable "global"
47
48if ! is_physical_device $DISKS; then
49	log_unsupported "This directory cannot be run on raw files."
50fi
51
52volsize=$(zfs get -H -o value volsize $TESTPOOL/$TESTVOL)
53
54function cleanup
55{
56	typeset dumpdev=$(get_dumpdevice)
57	if [[ $dumpdev != $savedumpdev ]] ; then
58		safe_dumpadm $savedumpdev
59	fi
60
61	swap -l | grep -w $voldev > /dev/null 2>&1
62        if (( $? == 0 ));  then
63		log_must swap -d $voldev
64	fi
65
66	typeset snap
67	for snap in snap0 snap1 ; do
68		if datasetexists $TESTPOOL/$TESTVOL@$snap ; then
69			log_must zfs destroy $TESTPOOL/$TESTVOL@$snap
70		fi
71	done
72	zfs set volsize=$volsize $TESTPOOL/$TESTVOL
73}
74
75function verify_snapshot
76{
77	typeset volume=$1
78
79	log_must zfs snapshot $volume@snap0
80	log_must zfs snapshot $volume@snap1
81	log_must datasetexists $volume@snap0 $volume@snap1
82
83	log_must zfs destroy $volume@snap1
84	log_must zfs snapshot $volume@snap1
85
86	log_mustnot zfs rollback -r $volume@snap0
87	log_must datasetexists $volume@snap0
88
89	log_must zfs destroy -r $volume@snap0
90}
91
92log_assert "Verify the ability to take snapshots of zvols used as dump or swap."
93log_onexit cleanup
94
95voldev=${ZVOL_DEVDIR}/$TESTPOOL/$TESTVOL
96savedumpdev=$(get_dumpdevice)
97
98# create snapshot over dump zvol
99safe_dumpadm $voldev
100log_must is_zvol_dumpified $TESTPOOL/$TESTVOL
101
102verify_snapshot $TESTPOOL/$TESTVOL
103
104safe_dumpadm $savedumpdev
105log_mustnot is_zvol_dumpified $TESTPOOL/$TESTVOL
106
107# create snapshot over swap zvol
108
109log_must swap -a $voldev
110log_mustnot is_zvol_dumpified $TESTPOOL/$TESTVOL
111
112verify_snapshot $TESTPOOL/$TESTVOL
113
114log_must swap -d $voldev
115log_mustnot is_zvol_dumpified $TESTPOOL/$TESTVOL
116
117log_pass "Creating snapshots from dump/swap zvols succeeds."
118