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 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 . $STF_SUITE/tests/functional/snapshot/snapshot.cfg
  35 
  36 
  37 #
  38 # DESCRIPTION:
  39 # Verify that rollbacks succeed when there are nested file systems.
  40 #
  41 # STRATEGY:
  42 # 1) Snapshot an empty file system and rollback
  43 # 2) Create a file in the file system
  44 # 3) Rollback the file system to empty
  45 # 4) Create a nested file system with the same name as the file created in (2)
  46 # 5) Verify a rollback succeeds
  47 #
  48 
  49 verify_runnable "both"
  50 
  51 function cleanup
  52 {
  53         typeset snap=""
  54         typeset fs=""
  55 
  56         export __ZFS_POOL_RESTRICT="$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 
  78 log_assert "Verify rollback succeeds when there are nested file systems."
  79 
  80 log_onexit cleanup
  81 
  82 log_must $ZFS snapshot $SNAPPOOL
  83 log_must $ZFS rollback $SNAPPOOL
  84 log_mustnot $ZFS snapshot $SNAPPOOL
  85 
  86 log_must $TOUCH /$TESTPOOL/$TESTFILE
  87 
  88 log_must $ZFS rollback $SNAPPOOL
  89 log_must $ZFS create $TESTPOOL/$TESTFILE
  90 
  91 log_must $ZFS rollback $SNAPPOOL
  92 
  93 log_note "Verify rollback of multiple nested file systems succeeds."
  94 log_must $ZFS snapshot $TESTPOOL/$TESTFILE@$TESTSNAP
  95 log_must $ZFS snapshot $SNAPPOOL.1
  96 
  97 export __ZFS_POOL_RESTRICT="$TESTPOOL"
  98 log_must $ZFS unmount -a
  99 log_must $ZFS mount -a
 100 unset __ZFS_POOL_RESTRICT
 101 
 102 log_must $TOUCH /$TESTPOOL/$TESTFILE/$TESTFILE.1
 103 
 104 log_must $ZFS rollback $SNAPPOOL.1
 105 
 106 log_pass "Rollbacks succeed when nested file systems are present."