3 # Test qemu-img vs. unaligned images
4 # (See also 253, which is the O_DIRECT version)
6 # Copyright (C) 2018-2019 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
38 _supported_proto
file fuse
41 _default_cache_mode writeback
42 _supported_cache_modes writeback writethrough unsafe
45 echo "=== Check mapping of unaligned raw image ==="
48 _make_test_img
65537 # qemu-img create rounds size up
50 # file-posix allocates the first block of any images when it is created;
51 # the size of this block depends on the host page size and the file
52 # system block size, none of which are constant. Discard the whole
53 # image so we will not see this allocation in qemu-img map's output.
54 $QEMU_IO -c 'discard 0 65537' "$TEST_IMG" | _filter_qemu_io
56 $QEMU_IMG map
--output=json
"$TEST_IMG" | _filter_qemu_img_map
58 truncate
--size=65537 "$TEST_IMG" # so we resize it and check again
59 $QEMU_IMG map
--output=json
"$TEST_IMG" | _filter_qemu_img_map
61 $QEMU_IO -c 'w 65536 1' "$TEST_IMG" | _filter_qemu_io
# writing also rounds up
62 $QEMU_IMG map
--output=json
"$TEST_IMG" | _filter_qemu_img_map
64 truncate
--size=65537 "$TEST_IMG" # so we resize it and check again
65 $QEMU_IMG map
--output=json
"$TEST_IMG" | _filter_qemu_img_map