| #!/bin/ksh -p |
| # |
| # CDDL HEADER START |
| # |
| # The contents of this file are subject to the terms of the |
| # Common Development and Distribution License (the "License"). |
| # You may not use this file except in compliance with the License. |
| # |
| # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| # or http://www.opensolaris.org/os/licensing. |
| # See the License for the specific language governing permissions |
| # and limitations under the License. |
| # |
| # When distributing Covered Code, include this CDDL HEADER in each |
| # file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| # If applicable, add the following below this CDDL HEADER, with the |
| # fields enclosed by brackets "[]" replaced with your own identifying |
| # information: Portions Copyright [yyyy] [name of copyright owner] |
| # |
| # CDDL HEADER END |
| # |
| |
| # |
| # Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
| # Use is subject to license terms. |
| # |
| |
| # |
| # Copyright (c) 2013, 2016 by Delphix. All rights reserved. |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/refreserv/refreserv.cfg |
| |
| # |
| # DESCRIPTION: |
| # Setting full size as refreservation, verify no snapshot can be created. |
| # |
| # STRATEGY: |
| # 1. Setting full size as refreservation on pool |
| # 2. Verify no snapshot can be created on this pool |
| # 3. Setting full size as refreservation on filesystem |
| # 4. Verify no snapshot can be created on it and its subfs |
| # |
| |
| verify_runnable "both" |
| |
| function cleanup |
| { |
| if is_global_zone ; then |
| log_must zfs set refreservation=none $TESTPOOL |
| |
| datasetexists $TESTPOOL@snap && destroy_dataset $TESTPOOL@snap -f |
| fi |
| destroy_dataset $TESTPOOL/$TESTFS -rf |
| log_must zfs create $TESTPOOL/$TESTFS |
| log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS |
| } |
| |
| # This function iteratively increases refreserv to its highest possible |
| # value. Simply setting refreserv == quota can allow enough writes to |
| # complete that the test fails. |
| function max_refreserv |
| { |
| typeset ds=$1 |
| typeset -i incsize=131072 |
| typeset -i rr=$(get_prop available $ds) |
| |
| log_must zfs set refreserv=$rr $ds |
| while :; do |
| zfs set refreserv=$((rr + incsize)) $ds >/dev/null 2>&1 |
| if [[ $? == 0 ]]; then |
| ((rr += incsize)) |
| continue |
| else |
| ((incsize /= 2)) |
| ((incsize == 0)) && break |
| fi |
| done |
| } |
| |
| |
| log_assert "Setting full size as refreservation, verify no snapshot " \ |
| "can be created." |
| log_onexit cleanup |
| |
| log_must zfs create $TESTPOOL/$TESTFS/subfs |
| |
| typeset datasets |
| if is_global_zone; then |
| datasets="$TESTPOOL $TESTPOOL/$TESTFS $TESTPOOL/$TESTFS/subfs" |
| else |
| datasets="$TESTPOOL/$TESTFS $TESTPOOL/$TESTFS/subfs" |
| fi |
| |
| for ds in $datasets; do |
| # |
| # Verify refreservation on dataset |
| # |
| log_must zfs set quota=25M $ds |
| max_refreserv $ds |
| log_mustnot zfs snapshot $ds@snap |
| if datasetexists $ds@snap ; then |
| log_fail "ERROR: $ds@snap should not exists." |
| fi |
| |
| log_must zfs set quota=none $ds |
| log_must zfs set refreservation=none $ds |
| done |
| |
| log_pass "Setting full size as refreservation, verify no snapshot " \ |
| "can be created." |