4 # Test for discarding compressed clusters on qcow2 images
6 # Copyright (C) 2014 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 owner=hreitz@redhat.com
26 echo "QA output created by $seq"
28 status=1 # failure is the default!
34 trap "_cleanup; exit \$status" 0 1 2 3 15
36 # get standard environment, filters and checks
41 _supported_proto file nfs fuse
42 # External data files do not support compressed clusters
43 _unsupported_imgopts data_file
47 _make_test_img $IMG_SIZE
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
54 $QEMU_IO -c 'read -P 0 64k 64k' "$TEST_IMG" | _filter_qemu_io