xref: /illumos-gate/usr/src/test/zfs-tests/tests/functional/zvol/zvol_swap/zvol_swap_003_pos.ksh (revision 241c90a06e8d1708235651863df515a2d522a03a)
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 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 2020 Joyent, Inc.
31#
32
33. $STF_SUITE/include/libtest.shlib
34. $STF_SUITE/tests/functional/zvol/zvol_common.shlib
35. $STF_SUITE/tests/functional/zvol/zvol_swap/zvol_swap.cfg
36
37#
38# DESCRIPTION:
39# Verify that a zvol device can be used as a swap device
40# through /etc/vfstab configuration.
41#
42# STRATEGY:
43# 1. Modify /etc/vfstab to add the test zvol as swap device.
44# 2. Use /sbin/swapadd to add zvol as swap device throuth /etc/vfstab
45# 3. Create a file under /tmp and verify the file
46#
47
48verify_runnable "global"
49
50function cleanup
51{
52	[[ -f /tmp/$TESTFILE ]] && log_must rm -f /tmp/$TESTFILE
53	[[ -f $NEW_VFSTAB_FILE ]] && log_must rm -f $NEW_VFSTAB_FILE
54	[[ -f $PREV_VFSTAB_FILE ]] && \
55	    log_must mv $PREV_VFSTAB_FILE $VFSTAB_FILE
56	[[ -f $PREV_VFSTAB_FILE ]] && rm -f $PREV_VFSTAB_FILE
57
58        if is_swap_inuse $voldev ; then
59		log_must swap -d $voldev
60	fi
61
62}
63
64log_assert "Verify that a zvol device can be used as a swap device" \
65    "through /etc/vfstab configuration."
66
67log_onexit cleanup
68
69voldev=/dev/zvol/dsk/$TESTPOOL/$TESTVOL
70VFSTAB_FILE=/etc/vfstab
71NEW_VFSTAB_FILE=/var/tmp/zvol_vfstab.$$
72PREV_VFSTAB_FILE=/var/tmp/zvol_vfstab.PREV.$$
73
74[[ -f $NEW_VFSTAB_FILE ]] && cp /dev/null $NEW_VFSTAB_FILE
75
76awk '{if ($4 != "swap") print $1}' /etc/vfstab > $NEW_VFSTAB_FILE
77echo "$voldev\t-\t-\tswap\t-\tno\t-"  >> $NEW_VFSTAB_FILE
78
79# Copy off the original vfstab, and run swapadd on the newly constructed one.
80log_must cp $VFSTAB_FILE $PREV_VFSTAB_FILE
81log_must cp $NEW_VFSTAB_FILE $VFSTAB_FILE
82log_must swapadd $VFSTAB_FILE
83
84log_must file_write -o create -f /tmp/$TESTFILE \
85    -b $BLOCKSZ -c $NUM_WRITES -d $DATA
86
87[[ ! -f /tmp/$TESTFILE ]] &&
88    log_fail "Unable to create file under /tmp"
89
90filesize=`ls -l /tmp/$TESTFILE | awk '{print $5}'`
91tf_size=$((BLOCKSZ * NUM_WRITES))
92(($tf_size != $filesize)) && \
93    log_fail "testfile is ($filesize bytes), expected ($tf_size bytes)"
94
95log_pass "Successfully added a zvol to swap area through /etc/vfstab."
96