| #!/usr/bin/env bash |
| # |
| # Test qemu-img vs. unaligned images |
| # (See also 253, which is the O_DIRECT version) |
| # |
| # Copyright (C) 2018-2019 Red Hat, Inc. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| seq="$(basename $0)" |
| echo "QA output created by $seq" |
| |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| _cleanup_test_img |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| |
| _supported_fmt raw |
| _supported_proto file fuse |
| _supported_os Linux |
| |
| _default_cache_mode writeback |
| _supported_cache_modes writeback writethrough unsafe |
| |
| echo |
| echo "=== Check mapping of unaligned raw image ===" |
| echo |
| |
| _make_test_img 65537 # qemu-img create rounds size up |
| |
| # file-posix allocates the first block of any images when it is created; |
| # the size of this block depends on the host page size and the file |
| # system block size, none of which are constant. Discard the whole |
| # image so we will not see this allocation in qemu-img map's output. |
| $QEMU_IO -c 'discard 0 65537' "$TEST_IMG" | _filter_qemu_io |
| |
| $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map |
| |
| truncate --size=65537 "$TEST_IMG" # so we resize it and check again |
| $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map |
| |
| $QEMU_IO -c 'w 65536 1' "$TEST_IMG" | _filter_qemu_io # writing also rounds up |
| $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map |
| |
| truncate --size=65537 "$TEST_IMG" # so we resize it and check again |
| $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map |
| |
| # success, all done |
| echo '*** done' |
| rm -f $seq.full |
| status=0 |
