79 lines
2.2 KiB
Bash
Executable File
79 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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#
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# Test that sub-cluster allocating writes zero the rest of the cluster
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#
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# Copyright (C) 2010 IBM, Corp.
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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=stefanha@linux.vnet.ibm.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 vmdk qcow qcow2 qed
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_supported_proto generic
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_supported_os Linux
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size=128M
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cluster_size=65536
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subcluster_offset=1024
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subcluster_size=2048
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_make_test_img $size
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# This first write causes an L2 table to be allocated so that the next write
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# doesn't need to allocate one and is therefore at the end of the image file.
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# Otherwise an L2 table could get in the way after the data cluster.
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echo
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echo "== writing first cluster to populate metadata =="
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$QEMU_IO -c "write -pP 0xde $cluster_size $cluster_size" "$TEST_IMG" | _filter_qemu_io
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echo
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echo "== writing at sub-cluster granularity =="
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$QEMU_IO -c "write -pP 0xa $subcluster_offset $subcluster_size" "$TEST_IMG" | _filter_qemu_io
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echo
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echo "== verify pattern =="
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$QEMU_IO -c "read -pP 0xa $subcluster_offset $subcluster_size" "$TEST_IMG" | _filter_qemu_io
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echo
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echo "== verify zeroes before sub-cluster pattern =="
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$QEMU_IO -c "read -pP 0 -l $subcluster_offset 0 $subcluster_size" "$TEST_IMG" | _filter_qemu_io
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echo
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echo "== verify zeroes after sub-cluster pattern =="
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$QEMU_IO -c "read -pP 0 -l 512 -s $subcluster_size $subcluster_offset $(( subcluster_size + 512 ))" "$TEST_IMG" | _filter_qemu_io
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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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