1#!/usr/bin/env bash 2# 3# Test qcow2 preallocation 4# 5# Copyright (C) 2019 Red Hat, Inc. 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 2 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program. If not, see <http://www.gnu.org/licenses/>. 19# 20 21# creator 22owner=kwolf@redhat.com 23 24seq=$(basename $0) 25echo "QA output created by $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _cleanup_test_img 32 _rm_test_img "$TEST_IMG.data" 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40_supported_fmt qcow2 41_supported_proto file 42_supported_os Linux 43# External data files do not work with compat=0.10, and because there 44# is an explicit case for external data files here, we cannot allow 45# the user to specify whether to use one 46_unsupported_imgopts 'compat=0.10' data_file 47 48for mode in off metadata falloc full; do 49 50 echo 51 echo "=== preallocation=$mode ===" 52 echo 53 54 _make_test_img -o "preallocation=$mode" 64M 55 56 printf "File size: " 57 du -b $TEST_IMG | cut -f1 58 59 # Can't use precise numbers here because they differ between filesystems 60 printf "Disk usage: " 61 [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high" 62 63done 64 65for mode in off metadata falloc full; do 66 67 echo 68 echo "=== External data file: preallocation=$mode ===" 69 echo 70 71 _make_test_img -o "data_file=$TEST_IMG.data,preallocation=$mode" 64M 72 73 echo -n "qcow2 file size: " 74 du -b $TEST_IMG | cut -f1 75 echo -n "data file size: " 76 du -b $TEST_IMG.data | cut -f1 77 78 # Can't use precise numbers here because they differ between filesystems 79 echo -n "qcow2 disk usage: " 80 [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high" 81 echo -n "data disk usage: " 82 [ $(du -B1 $TEST_IMG.data | cut -f1) -lt 1048576 ] && echo "low" || echo "high" 83 84done 85 86# success, all done 87echo "*** done" 88rm -f $seq.full 89status=0 90