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1 #!/usr/bin/env bash 2 # group: rw auto quick 3 # 4 # Test reverse-ordered qcow2 writes on a sub-cluster level 5 # 6 # Copyright (C) 2019 Red Hat, Inc. 7 # 8 # This program is free software; you can redistribute it and/or modify 9 # it under the terms of the GNU General Public License as published by 10 # the Free Software Foundation; either version 2 of the License, or 11 # (at your option) any later version. 12 # 13 # This program is distributed in the hope that it will be useful, 14 # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 # GNU General Public License for more details. 17 # 18 # You should have received a copy of the GNU General Public License 19 # along with this program. If not, see <http://www.gnu.org/licenses/>. 20 # 21 22 seq=$(basename $0) 23 echo "QA output created by $seq" 24 25 status=1 # failure is the default! 26 27 _cleanup() 28 { 29 _cleanup_test_img 30 } 31 trap "_cleanup; exit \$status" 0 1 2 3 15 32 33 # get standard environment, filters and checks 34 . ./common.rc 35 . ./common.filter 36 37 # qcow2-specific test 38 _supported_fmt qcow2 39 _supported_proto file fuse 40 _supported_os Linux 41 42 echo '--- Writing to the image ---' 43 44 # Reduce cluster size so we get more and quicker I/O 45 _make_test_img -o 'cluster_size=4096' 1M 46 (for ((kb = 1024 - 4; kb >= 0; kb -= 4)); do \ 47 echo "aio_write -P 42 $((kb + 1))k 2k"; \ 48 done) \ 49 | $QEMU_IO "$TEST_IMG" > /dev/null 50 51 echo '--- Verifying its content ---' 52 53 (for ((kb = 0; kb < 1024; kb += 4)); do \ 54 echo "read -P 0 ${kb}k 1k"; \ 55 echo "read -P 42 $((kb + 1))k 2k"; \ 56 echo "read -P 0 $((kb + 3))k 1k"; \ 57 done) \ 58 | $QEMU_IO "$TEST_IMG" | _filter_qemu_io | grep 'verification' 59 60 # Status of qemu-io 61 if [ ${PIPESTATUS[1]} = 0 ]; then 62 echo 'Content verified.' 63 fi 64 65 # success, all done 66 echo "*** done" 67 rm -f $seq.full 68 status=0