1#!/usr/bin/env bash
2# group: rw auto quick
3#
4# Test for discarding compressed clusters on qcow2 images
5#
6# Copyright (C) 2014 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
22# creator
23owner=mreitz@redhat.com
24
25seq="$(basename $0)"
26echo "QA output created by $seq"
27
28status=1	# failure is the default!
29
30_cleanup()
31{
32	_cleanup_test_img
33}
34trap "_cleanup; exit \$status" 0 1 2 3 15
35
36# get standard environment, filters and checks
37. ./common.rc
38. ./common.filter
39
40_supported_fmt qcow2
41_supported_proto file nfs fuse
42# External data files do not support compressed clusters
43_unsupported_imgopts data_file
44
45IMG_SIZE=128K
46
47_make_test_img $IMG_SIZE
48
49$QEMU_IO -c 'write -c -P 42 0 64k' \
50         -c 'write -c -P 23 64k 64k' \
51         -c 'discard 64k 64k' \
52         "$TEST_IMG" | _filter_qemu_io
53
54$QEMU_IO -c 'read -P 0 64k 64k' "$TEST_IMG" | _filter_qemu_io
55
56_check_test_img
57
58# success, all done
59echo "*** done"
60rm -f $seq.full
61status=0
62