1#!/usr/bin/env bash 2# 3# Test reverse-ordered qcow2 writes on a sub-cluster level 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 21seq=$(basename $0) 22echo "QA output created by $seq" 23 24status=1 # failure is the default! 25 26_cleanup() 27{ 28 _cleanup_test_img 29} 30trap "_cleanup; exit \$status" 0 1 2 3 15 31 32# get standard environment, filters and checks 33. ./common.rc 34. ./common.filter 35 36# qcow2-specific test 37_supported_fmt qcow2 38_supported_proto file fuse 39_supported_os Linux 40 41echo '--- Writing to the image ---' 42 43# Reduce cluster size so we get more and quicker I/O 44_make_test_img -o 'cluster_size=4096' 1M 45(for ((kb = 1024 - 4; kb >= 0; kb -= 4)); do \ 46 echo "aio_write -P 42 $((kb + 1))k 2k"; \ 47 done) \ 48 | $QEMU_IO "$TEST_IMG" > /dev/null 49 50echo '--- Verifying its content ---' 51 52(for ((kb = 0; kb < 1024; kb += 4)); do \ 53 echo "read -P 0 ${kb}k 1k"; \ 54 echo "read -P 42 $((kb + 1))k 2k"; \ 55 echo "read -P 0 $((kb + 3))k 1k"; \ 56 done) \ 57 | $QEMU_IO "$TEST_IMG" | _filter_qemu_io | grep 'verification' 58 59# Status of qemu-io 60if [ ${PIPESTATUS[1]} = 0 ]; then 61 echo 'Content verified.' 62fi 63 64# success, all done 65echo "*** done" 66rm -f $seq.full 67status=0 68