4 # Test reverse-ordered qcow2 writes on a sub-cluster level
6 # Copyright (C) 2019 Red Hat, Inc.
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.
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.
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/>.
23 echo "QA output created by $seq"
25 status=1 # failure is the default!
31 trap "_cleanup; exit \$status" 0 1 2 3 15
33 # get standard environment, filters and checks
39 _supported_proto file fuse
42 echo '--- Writing to the image ---'
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"; \
49 | $QEMU_IO "$TEST_IMG" > /dev/null
51 echo '--- Verifying its content ---'
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"; \
58 | $QEMU_IO "$TEST_IMG" | _filter_qemu_io | grep 'verification'
61 if [ ${PIPESTATUS[1]} = 0 ]; then
62 echo 'Content verified.'