| 1 | #!/usr/bin/env bash |
| 2 | # group: rw quick |
| 3 | # |
| 4 | # Test qemu-img vs. unaligned images |
| 5 | # (See also 253, which is the O_DIRECT version) |
| 6 | # |
| 7 | # Copyright (C) 2018-2019 Red Hat, Inc. |
| 8 | # |
| 9 | # This program is free software; you can redistribute it and/or modify |
| 10 | # it under the terms of the GNU General Public License as published by |
| 11 | # the Free Software Foundation; either version 2 of the License, or |
| 12 | # (at your option) any later version. |
| 13 | # |
| 14 | # This program is distributed in the hope that it will be useful, |
| 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | # GNU General Public License for more details. |
| 18 | # |
| 19 | # You should have received a copy of the GNU General Public License |
| 20 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 21 | # |
| 22 | |
| 23 | seq="$(basename $0)" |
| 24 | echo "QA output created by $seq" |
| 25 | |
| 26 | status=1 # failure is the default! |
| 27 | |
| 28 | _cleanup() |
| 29 | { |
| 30 | _cleanup_test_img |
| 31 | } |
| 32 | trap "_cleanup; exit \$status" 0 1 2 3 15 |
| 33 | |
| 34 | # get standard environment, filters and checks |
| 35 | . ./common.rc |
| 36 | . ./common.filter |
| 37 | |
| 38 | _supported_fmt raw |
| 39 | _supported_proto file fuse |
| 40 | _supported_os Linux |
| 41 | |
| 42 | _default_cache_mode writeback |
| 43 | _supported_cache_modes writeback writethrough unsafe |
| 44 | _require_disk_usage |
| 45 | |
| 46 | echo |
| 47 | echo "=== Check mapping of unaligned raw image ===" |
| 48 | echo |
| 49 | |
| 50 | _make_test_img 65537 # qemu-img create rounds size up |
| 51 | |
| 52 | # file-posix allocates the first block of any images when it is created; |
| 53 | # the size of this block depends on the host page size and the file |
| 54 | # system block size, none of which are constant. Discard the whole |
| 55 | # image so we will not see this allocation in qemu-img map's output. |
| 56 | $QEMU_IO -c 'discard 0 65537' "$TEST_IMG" | _filter_qemu_io |
| 57 | |
| 58 | $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map |
| 59 | |
| 60 | truncate --size=65537 "$TEST_IMG" # so we resize it and check again |
| 61 | $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map |
| 62 | |
| 63 | $QEMU_IO -c 'w 65536 1' "$TEST_IMG" | _filter_qemu_io # writing also rounds up |
| 64 | $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map |
| 65 | |
| 66 | truncate --size=65537 "$TEST_IMG" # so we resize it and check again |
| 67 | $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map |
| 68 | |
| 69 | # success, all done |
| 70 | echo '*** done' |
| 71 | rm -f $seq.full |
| 72 | status=0 |