1#!/bin/bash 2# 3# Test case for qcow2 metadata cache size specification 4# 5# Copyright (C) 2014 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=mreitz@redhat.com 23 24seq=$(basename $0) 25echo "QA output created by $seq" 26 27here=$PWD 28tmp=/tmp/$$ 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_test_img 34} 35trap "_cleanup; exit \$status" 0 1 2 3 15 36 37# get standard environment, filters and checks 38. ./common.rc 39. ./common.filter 40 41_supported_fmt qcow2 42_supported_proto file nfs 43_supported_os Linux 44 45IMG_SIZE=64K 46 47_make_test_img $IMG_SIZE 48$QEMU_IO -c 'write -P 42 0 64k' "$TEST_IMG" | _filter_qemu_io 49 50echo 51echo '=== Testing invalid option combinations ===' 52echo 53 54# all sizes set at the same time 55$QEMU_IO -c "open -o cache-size=1.25M,l2-cache-size=1M,refcount-cache-size=0.25M $TEST_IMG" \ 56 2>&1 | _filter_testdir | _filter_imgfmt 57# l2-cache-size may not exceed cache-size 58$QEMU_IO -c "open -o cache-size=1M,l2-cache-size=2M $TEST_IMG" 2>&1 \ 59 | _filter_testdir | _filter_imgfmt 60# refcount-cache-size may not exceed cache-size 61$QEMU_IO -c "open -o cache-size=1M,refcount-cache-size=2M $TEST_IMG" 2>&1 \ 62 | _filter_testdir | _filter_imgfmt 63# 0 should be a valid size (e.g. for enforcing the minimum), so this should not 64# work 65$QEMU_IO -c "open -o cache-size=0,l2-cache-size=0,refcount-cache-size=0 $TEST_IMG" \ 66 2>&1 | _filter_testdir | _filter_imgfmt 67 68echo 69echo '=== Testing valid option combinations ===' 70echo 71 72# There should be a reasonable and working minimum 73$QEMU_IO -c "open -o cache-size=0 $TEST_IMG" -c 'read -P 42 0 64k' \ 74 | _filter_qemu_io 75$QEMU_IO -c "open -o l2-cache-size=0 $TEST_IMG" -c 'read -P 42 0 64k' \ 76 | _filter_qemu_io 77$QEMU_IO -c "open -o refcount-cache-size=0 $TEST_IMG" -c 'read -P 42 0 64k' \ 78 | _filter_qemu_io 79 80# Derive cache sizes from combined size (with a reasonable ratio, but we cannot 81# test that) 82$QEMU_IO -c "open -o cache-size=2M $TEST_IMG" -c 'read -P 42 0 64k' \ 83 | _filter_qemu_io 84# Fix one cache, derive the other 85$QEMU_IO -c "open -o cache-size=2M,l2-cache-size=1M $TEST_IMG" \ 86 -c 'read -P 42 0 64k' \ 87 | _filter_qemu_io 88$QEMU_IO -c "open -o cache-size=2M,refcount-cache-size=1M $TEST_IMG" \ 89 -c 'read -P 42 0 64k' \ 90 | _filter_qemu_io 91# Directly set both caches 92$QEMU_IO -c "open -o l2-cache-size=1M,refcount-cache-size=0.25M $TEST_IMG" \ 93 -c 'read -P 42 0 64k' \ 94 | _filter_qemu_io 95 96# success, all done 97echo '*** done' 98rm -f $seq.full 99status=0 100