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"; do 61 if snapexists $snap; then 62 destroy_snapshot $snap 63 fi 64 done 65 66 for fs in "$TESTPOOL/$TESTFILE/$TESTFILE.1" "$TESTPOOL/$TESTFILE"; do 67 if datasetexists $fs; then 68 destroy_dataset $fs -r 69 fi 70 done 71 72 [[ -e /$TESTPOOL ]] && \ 73 log_must rm -rf $TESTPOOL/* 74} 75 76log_assert "Verify rollback succeeds when there are nested file systems." 77 78log_onexit cleanup 79 80log_must zfs snapshot $SNAPPOOL 81log_must zfs rollback $SNAPPOOL 82log_mustnot zfs snapshot $SNAPPOOL 83 84log_must touch /$TESTPOOL/$TESTFILE 85sync_pool $TESTPOOL 86 87log_must zfs rollback $SNAPPOOL 88log_must zfs create $TESTPOOL/$TESTFILE 89 90log_must zfs rollback $SNAPPOOL 91 92log_note "Verify rollback of multiple nested file systems succeeds." 93log_must zfs snapshot $TESTPOOL/$TESTFILE@$TESTSNAP 94log_must zfs snapshot $SNAPPOOL.1 95 96# 97# Linux: Issuing a `df` seems to properly force any negative dcache entries to 98# be invalidated preventing failures when accessing the mount point. Additional 99# investigation required. 100# 101# https://github.com/openzfs/zfs/issues/6143 102# 103log_must df >/dev/null 104 105export __ZFS_POOL_RESTRICT="$TESTPOOL" 106log_must zfs unmount -a 107log_must zfs mount -a 108unset __ZFS_POOL_RESTRICT 109 110log_must touch /$TESTPOOL/$TESTFILE/$TESTFILE.1 111 112log_must zfs rollback $SNAPPOOL.1 113log_must df >/dev/null 114 115log_pass "Rollbacks succeed when nested file systems are present." 116