xref: /openbmc/qemu/tests/qemu-iotests/265 (revision b355f08a)
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
69