xref: /openbmc/qemu/tests/qemu-iotests/020 (revision 795c40b8)
1#!/bin/bash
2#
3# Commit changes to backing file
4#
5# Copyright (C) 2009 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
21# creator
22owner=kwolf@redhat.com
23
24seq=`basename $0`
25echo "QA output created by $seq"
26
27here=`pwd`
28status=1	# failure is the default!
29
30_cleanup()
31{
32	_cleanup_test_img
33    rm -f "$TEST_IMG.base"
34    rm -f "$TEST_IMG.orig"
35}
36trap "_cleanup; exit \$status" 0 1 2 3 15
37
38# get standard environment, filters and checks
39. ./common.rc
40. ./common.filter
41. ./common.pattern
42
43# Any format supporting backing files
44_supported_fmt qcow qcow2 vmdk qed
45_supported_proto generic
46_unsupported_proto vxhs
47_supported_os Linux
48_unsupported_imgopts "subformat=monolithicFlat" \
49                     "subformat=twoGbMaxExtentFlat" \
50                     "subformat=twoGbMaxExtentSparse"
51
52# NFS does not support bdrv_reopen_prepare thus qemu-img commit fails.
53if [ "$IMGPROTO" = "nfs" ]; then
54    _notrun "image protocol $IMGPROTO does not support bdrv_commit"
55fi
56
57TEST_OFFSETS="0 4294967296"
58
59TEST_IMG_SAVE="$TEST_IMG"
60TEST_IMG="$TEST_IMG.base"
61
62_make_test_img 6G
63
64echo "Filling base image"
65echo
66
67for offset in $TEST_OFFSETS; do
68    # Some clusters with alternating backing file/image file reads
69    io writev $(( offset )) 512 1024 64
70
71    # Complete backing clusters
72    io writev $(( offset  + 64 * 1024))  65536 65536 1
73done
74_check_test_img
75
76echo "Creating test image with backing file"
77echo
78
79TEST_IMG="$TEST_IMG_SAVE"
80_make_test_img -b "$TEST_IMG.base" 6G
81
82echo "Filling test image"
83echo
84
85for offset in $TEST_OFFSETS; do
86    # Some clusters with alternating backing file/image file reads
87    io writev $(( offset + 512 )) 512 1024 64
88
89    # Complete test image clusters
90    io writev $(( offset + 64 * 1024 + 65536))  65536 65536 1
91done
92_check_test_img
93
94$QEMU_IMG commit "$TEST_IMG"
95TEST_IMG="$TEST_IMG.base"
96
97echo "Reading from the backing file"
98echo
99
100for offset in $TEST_OFFSETS; do
101    # Some clusters with alternating backing file/image file reads
102    io readv $(( offset )) 512 1024 64
103    io readv $(( offset + 512 )) 512 1024 64
104
105    # Complete test image clusters
106    io readv $(( offset  + 64 * 1024))  65536 65536 1
107    io readv $(( offset + 64 * 1024 + 65536))  65536 65536 1
108
109    # Empty sectors
110    io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1
111done
112_check_test_img
113
114# success, all done
115echo "*** done"
116rm -f $seq.full
117status=0
118