mirror of https://gitee.com/openkylin/qemu.git
63 lines
1.6 KiB
Plaintext
63 lines
1.6 KiB
Plaintext
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#!/bin/bash
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#
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# Test case for discarding preallocated zero clusters in qcow2
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#
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# Copyright (C) 2013 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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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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# This tests qocw2-specific low-level functionality
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_supported_fmt qcow2
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_supported_proto generic
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_supported_os Linux
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IMGOPTS="compat=1.1"
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IMG_SIZE=64M
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echo
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echo "=== Testing snapshotting an image with zero clusters ==="
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echo
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_make_test_img $IMG_SIZE
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# Write some normal clusters, zero them (creating preallocated zero clusters)
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# and discard those
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$QEMU_IO -c "write 0 256k" -c "write -z 0 256k" -c "discard 0 256k" "$TEST_IMG" \
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| _filter_qemu_io
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# Check the image (there shouldn't be any leaks)
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_check_test_img
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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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