| #!/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 2008 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/reservation/reservation.shlib |
| |
| # |
| # DESCRIPTION: |
| # |
| # When a dataset which has a reservation set on it is destroyed, |
| # the space consumed or reserved by that dataset should be released |
| # back into the pool. |
| # |
| # STRATEGY: |
| # 1) Create a filesystem, regular and sparse volume |
| # 2) Get the space used and available in the pool |
| # 3) Set a reservation on the filesystem less than the space available. |
| # 4) Verify that the 'reservation' property for the filesystem has |
| # the correct value. |
| # 5) Destroy the filesystem without resetting the reservation value. |
| # 6) Verify that the space used and available totals for the pool have |
| # changed by the expected amounts (within tolerances). |
| # 7) Repeat steps 3-6 for a regular volume and sparse volume |
| # |
| |
| verify_runnable "both" |
| |
| function cleanup { |
| |
| for obj in $OBJ_LIST; do |
| datasetexists $obj && destroy_dataset $obj -f |
| done |
| } |
| |
| log_assert "Verify space released when a dataset with reservation is destroyed" |
| |
| log_onexit cleanup |
| |
| log_must zfs create $TESTPOOL/$TESTFS2 |
| |
| space_avail=`get_prop available $TESTPOOL` |
| |
| if ! is_global_zone ; then |
| OBJ_LIST="$TESTPOOL/$TESTFS2" |
| else |
| OBJ_LIST="$TESTPOOL/$TESTFS2 \ |
| $TESTPOOL/$TESTVOL $TESTPOOL/$TESTVOL2" |
| |
| ((vol_set_size = space_avail / 4)) |
| vol_set_size=$(floor_volsize $vol_set_size) |
| ((sparse_vol_set_size = space_avail * 4)) |
| sparse_vol_set_size=$(floor_volsize $sparse_vol_set_size) |
| |
| log_must zfs create -V $vol_set_size $TESTPOOL/$TESTVOL |
| log_must zfs set refreservation=none $TESTPOOL/$TESTVOL |
| log_must zfs set reservation=none $TESTPOOL/$TESTVOL |
| log_must zfs create -s -V $sparse_vol_set_size $TESTPOOL/$TESTVOL2 |
| fi |
| |
| # re-calculate space available. |
| space_avail=`get_prop available $TESTPOOL` |
| |
| # Calculate a large but valid reservation value. |
| resv_size_set=`expr $space_avail - $RESV_DELTA` |
| |
| for obj in $OBJ_LIST ; do |
| |
| space_avail=`get_prop available $TESTPOOL` |
| space_used=`get_prop used $TESTPOOL` |
| |
| # |
| # For regular (non-sparse) volumes the upper limit is determined |
| # not by the space available in the pool but rather by the size |
| # of the volume itself. |
| # |
| [[ $obj == $TESTPOOL/$TESTVOL ]] && \ |
| ((resv_size_set = vol_set_size - RESV_DELTA)) |
| |
| log_must zfs set reservation=$resv_size_set $obj |
| |
| resv_size_get=`get_prop reservation $obj` |
| if [[ $resv_size_set != $resv_size_get ]]; then |
| log_fail "Reservation not the expected value " \ |
| "($resv_size_set != $resv_size_get)" |
| fi |
| |
| log_must_busy zfs destroy -f $obj |
| |
| new_space_avail=`get_prop available $TESTPOOL` |
| new_space_used=`get_prop used $TESTPOOL` |
| |
| # |
| # Recent changes to metaslab logic have caused these tests to expand |
| # outside of their previous tolerance. If this is discovered to be a |
| # bug, rather than a side effect of some interactions, the reservation |
| # should be halved again. |
| # |
| log_must within_limits $space_used $new_space_used $RESV_TOLERANCE |
| log_must within_limits $space_avail $new_space_avail $RESV_TOLERANCE |
| done |
| |
| log_pass "Space correctly released when dataset is destroyed" |