| #!/usr/bin/env bash |
| # |
| # Test reverse-ordered qcow2 writes on a sub-cluster level |
| # |
| # Copyright (C) 2019 Red Hat, Inc. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| seq=$(basename $0) |
| echo "QA output created by $seq" |
| |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| _cleanup_test_img |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| |
| # qcow2-specific test |
| _supported_fmt qcow2 |
| _supported_proto file |
| _supported_os Linux |
| |
| echo '--- Writing to the image ---' |
| |
| # Reduce cluster size so we get more and quicker I/O |
| IMGOPTS='cluster_size=4096' _make_test_img 1M |
| (for ((kb = 1024 - 4; kb >= 0; kb -= 4)); do \ |
| echo "aio_write -P 42 $((kb + 1))k 2k"; \ |
| done) \ |
| | $QEMU_IO "$TEST_IMG" > /dev/null |
| |
| echo '--- Verifying its content ---' |
| |
| (for ((kb = 0; kb < 1024; kb += 4)); do \ |
| echo "read -P 0 ${kb}k 1k"; \ |
| echo "read -P 42 $((kb + 1))k 2k"; \ |
| echo "read -P 0 $((kb + 3))k 1k"; \ |
| done) \ |
| | $QEMU_IO "$TEST_IMG" | _filter_qemu_io | grep 'verification' |
| |
| # Status of qemu-io |
| if [ ${PIPESTATUS[1]} = 0 ]; then |
| echo 'Content verified.' |
| fi |
| |
| # success, all done |
| echo "*** done" |
| rm -f $seq.full |
| status=0 |