1 #! /usr/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 2016 Nexenta Systems, Inc.
  31 # Copyright 2020 Joyent, Inc.
  32 #
  33 
  34 . $STF_SUITE/include/libtest.shlib
  35 . $STF_SUITE/tests/functional/zvol/zvol_common.shlib
  36 
  37 #
  38 # DESCRIPTION:
  39 # Verify the ability to take snapshots of zvols used as dump or swap.
  40 #
  41 # STRATEGY:
  42 # 1. Create a ZFS volume
  43 # 2. Set the volume as dump or swap
  44 # 3. Verify creating a snapshot of the zvol succeeds.
  45 #
  46 
  47 verify_runnable "global"
  48 
  49 volsize=$(zfs get -H -o value volsize $TESTPOOL/$TESTVOL)
  50 
  51 function cleanup
  52 {
  53         typeset dumpdev=$(get_dumpdevice)
  54         if [[ $dumpdev != $savedumpdev ]] ; then
  55                 safe_dumpadm $savedumpdev
  56         fi
  57 
  58         swap -l | awk 'NR > 1 { print $1 }' | \
  59             grep "^$voldev\$" > /dev/null 2>&1
  60         if (( $? == 0 ));  then
  61                 log_must swap -d $voldev
  62         fi
  63 
  64         typeset snap
  65         for snap in snap0 snap1 ; do
  66                 if datasetexists $TESTPOOL/$TESTVOL@$snap ; then
  67                         log_must zfs destroy $TESTPOOL/$TESTVOL@$snap
  68                 fi
  69         done
  70         zfs set volsize=$volsize $TESTPOOL/$TESTVOL
  71 }
  72 
  73 function verify_snapshot
  74 {
  75         typeset volume=$1
  76 
  77         log_must zfs snapshot $volume@snap0
  78         log_must zfs snapshot $volume@snap1
  79         log_must datasetexists $volume@snap0 $volume@snap1
  80 
  81         log_must zfs destroy $volume@snap1
  82         log_must zfs snapshot $volume@snap1
  83 
  84         log_mustnot zfs rollback -r $volume@snap0
  85         log_must datasetexists $volume@snap0
  86 
  87         log_must zfs destroy -r $volume@snap0
  88 }
  89 
  90 log_assert "Verify the ability to take snapshots of zvols used as dump or swap."
  91 log_onexit cleanup
  92 
  93 voldev=/dev/zvol/dsk/$TESTPOOL/$TESTVOL
  94 savedumpdev=$(get_dumpdevice)
  95 
  96 # create snapshot over dump zvol
  97 safe_dumpadm $voldev
  98 log_must is_zvol_dumpified $TESTPOOL/$TESTVOL
  99 
 100 verify_snapshot $TESTPOOL/$TESTVOL
 101 
 102 safe_dumpadm $savedumpdev
 103 log_mustnot is_zvol_dumpified $TESTPOOL/$TESTVOL
 104 
 105 # create snapshot over swap zvol
 106 
 107 log_must swap -a $voldev
 108 log_mustnot is_zvol_dumpified $TESTPOOL/$TESTVOL
 109 
 110 verify_snapshot $TESTPOOL/$TESTVOL
 111 
 112 log_must swap -d $voldev
 113 log_mustnot is_zvol_dumpified $TESTPOOL/$TESTVOL
 114 
 115 log_pass "Creating snapshots from dump/swap zvols succeeds."