106 lines
2.2 KiB
Plaintext
106 lines
2.2 KiB
Plaintext
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#!/bin/bash
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#
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# Test that qemu-img convert -S 0 fully allocates the target image
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#
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# Copyright (C) 2016 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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# creator
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owner=mreitz@redhat.com
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seq="$(basename $0)"
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echo "QA output created by $seq"
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here="$PWD"
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tmp=/tmp/$$
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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 generic
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_supported_proto file
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_supported_os Linux
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on_disk_size()
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{
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du "$@" | sed -e 's/\t\+.*//'
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}
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img_size=1048576
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echo
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echo '=== Comparing empty image against sparse conversion ==='
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echo
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_make_test_img $img_size
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empty_size=$(on_disk_size "$TEST_IMG")
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$QEMU_IMG_PROG convert -O "$IMGFMT" -S 512 \
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"json:{ 'driver': 'null-co', 'size': $img_size, 'read-zeroes': true }" \
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"$TEST_IMG"
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sparse_convert_size=$(on_disk_size "$TEST_IMG")
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if [ "$empty_size" -eq "$sparse_convert_size" ]; then
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echo 'Equal image size'
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else
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echo 'Different image size'
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fi
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echo
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echo '=== Comparing full image against non-sparse conversion ==='
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echo
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_make_test_img $img_size
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$QEMU_IO -c "write 0 $img_size" "$TEST_IMG" | _filter_qemu_io
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full_size=$(on_disk_size "$TEST_IMG")
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$QEMU_IMG convert -O "$IMGFMT" -S 0 \
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"json:{ 'driver': 'null-co', 'size': $img_size, 'read-zeroes': true }" \
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"$TEST_IMG"
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non_sparse_convert_size=$(on_disk_size "$TEST_IMG")
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if [ "$full_size" -eq "$non_sparse_convert_size" ]; then
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echo 'Equal image size'
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else
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echo 'Different image size'
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fi
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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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