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1#!/usr/bin/env bash 2# group: rw auto quick 3# 4# Test reverse-ordered qcow2 writes on a sub-cluster level 5# 6# Copyright (C) 2019 Red Hat, Inc. 7# 8# This program is free software; you can redistribute it and/or modify 9# it under the terms of the GNU General Public License as published by 10# the Free Software Foundation; either version 2 of the License, or 11# (at your option) any later version. 12# 13# This program is distributed in the hope that it will be useful, 14# but WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16# GNU General Public License for more details. 17# 18# You should have received a copy of the GNU General Public License 19# along with this program. If not, see <http://www.gnu.org/licenses/>. 20# 21 22seq=$(basename $0) 23echo "QA output created by $seq" 24 25status=1 # failure is the default! 26 27_cleanup() 28{ 29 _cleanup_test_img 30} 31trap "_cleanup; exit \$status" 0 1 2 3 15 32 33# get standard environment, filters and checks 34. ./common.rc 35. ./common.filter 36 37# qcow2-specific test 38_supported_fmt qcow2 39_supported_proto file fuse 40_supported_os Linux 41 42echo '--- Writing to the image ---' 43 44# Reduce cluster size so we get more and quicker I/O 45_make_test_img -o 'cluster_size=4096' 1M 46(for ((kb = 1024 - 4; kb >= 0; kb -= 4)); do \ 47 echo "aio_write -P 42 $((kb + 1))k 2k"; \ 48 done) \ 49 | $QEMU_IO "$TEST_IMG" > /dev/null 50 51echo '--- Verifying its content ---' 52 53(for ((kb = 0; kb < 1024; kb += 4)); do \ 54 echo "read -P 0 ${kb}k 1k"; \ 55 echo "read -P 42 $((kb + 1))k 2k"; \ 56 echo "read -P 0 $((kb + 3))k 1k"; \ 57 done) \ 58 | $QEMU_IO "$TEST_IMG" | _filter_qemu_io | grep 'verification' 59 60# Status of qemu-io 61if [ ${PIPESTATUS[1]} = 0 ]; then 62 echo 'Content verified.' 63fi 64 65# success, all done 66echo "*** done" 67rm -f $seq.full 68status=0