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