1#!/bin/bash 2# 3# Test bdrv_pwrite_zeroes with backing files (see also 154) 4# 5# Copyright (C) 2012 Red Hat, Inc. 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 2 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program. If not, see <http://www.gnu.org/licenses/>. 19# 20 21# creator 22owner=kwolf@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _cleanup_test_img 32} 33trap "_cleanup; exit \$status" 0 1 2 3 15 34 35# get standard environment, filters and checks 36. ./common.rc 37. ./common.filter 38 39_supported_fmt qcow qcow2 vmdk qed 40_supported_proto file 41_supported_os Linux 42_unsupported_imgopts "subformat=monolithicFlat" \ 43 "subformat=twoGbMaxExtentFlat" \ 44 "subformat=twoGbMaxExtentSparse" 45 46CLUSTER_SIZE=4k 47size=128M 48 49echo 50echo "== creating backing file for COW tests ==" 51 52TEST_IMG_SAVE="$TEST_IMG" 53TEST_IMG="$TEST_IMG.base" 54 55_make_test_img $size 56$QEMU_IO -c "write -P 0x55 0 1M" "$TEST_IMG" | _filter_qemu_io 57 58TEST_IMG="$TEST_IMG_SAVE" 59 60_make_test_img -b "$TEST_IMG.base" 6G 61 62echo 63echo "== zero write with backing file ==" 64$QEMU_IO -c "write -z 64k 192k" "$TEST_IMG" | _filter_qemu_io 65$QEMU_IO -c "write -z 513k 13k" "$TEST_IMG" | _filter_qemu_io 66 67_check_test_img 68 69echo 70echo "== verifying patterns (3) ==" 71$QEMU_IO -c "read -P 0x55 0 64k" "$TEST_IMG" | _filter_qemu_io 72$QEMU_IO -c "read -P 0x0 64k 192k" "$TEST_IMG" | _filter_qemu_io 73$QEMU_IO -c "read -P 0x55 256k 257k" "$TEST_IMG" | _filter_qemu_io 74$QEMU_IO -c "read -P 0x0 513k 13k" "$TEST_IMG" | _filter_qemu_io 75$QEMU_IO -c "read -P 0x55 526k 498k" "$TEST_IMG" | _filter_qemu_io 76 77echo 78echo "== overwriting zero cluster ==" 79$QEMU_IO -c "write -P 0xa 60k 8k" "$TEST_IMG" | _filter_qemu_io 80$QEMU_IO -c "write -P 0xb 64k 8k" "$TEST_IMG" | _filter_qemu_io 81$QEMU_IO -c "write -P 0xc 76k 4k" "$TEST_IMG" | _filter_qemu_io 82$QEMU_IO -c "write -P 0xd 252k 8k" "$TEST_IMG" | _filter_qemu_io 83$QEMU_IO -c "write -P 0xe 248k 8k" "$TEST_IMG" | _filter_qemu_io 84 85_check_test_img 86 87echo 88echo "== verifying patterns (4) ==" 89$QEMU_IO -c "read -P 0x55 0 60k" "$TEST_IMG" | _filter_qemu_io 90$QEMU_IO -c "read -P 0xa 60k 4k" "$TEST_IMG" | _filter_qemu_io 91$QEMU_IO -c "read -P 0xb 64k 8k" "$TEST_IMG" | _filter_qemu_io 92$QEMU_IO -c "read -P 0x0 72k 4k" "$TEST_IMG" | _filter_qemu_io 93$QEMU_IO -c "read -P 0xc 76k 4k" "$TEST_IMG" | _filter_qemu_io 94$QEMU_IO -c "read -P 0x0 80k 168k" "$TEST_IMG" | _filter_qemu_io 95$QEMU_IO -c "read -P 0xe 248k 8k" "$TEST_IMG" | _filter_qemu_io 96$QEMU_IO -c "read -P 0xd 256k 4k" "$TEST_IMG" | _filter_qemu_io 97$QEMU_IO -c "read -P 0x55 260k 64k" "$TEST_IMG" | _filter_qemu_io 98 99echo 100echo "== re-zeroing overwritten area ==" 101$QEMU_IO -c "write -z 64k 192k" "$TEST_IMG" | _filter_qemu_io 102 103_check_test_img 104 105echo 106echo "== verifying patterns (5) ==" 107$QEMU_IO -c "read -P 0x55 0 60k" "$TEST_IMG" | _filter_qemu_io 108$QEMU_IO -c "read -P 0xa 60k 4k" "$TEST_IMG" | _filter_qemu_io 109$QEMU_IO -c "read -P 0x0 64k 192k" "$TEST_IMG" | _filter_qemu_io 110$QEMU_IO -c "read -P 0xd 256k 4k" "$TEST_IMG" | _filter_qemu_io 111$QEMU_IO -c "read -P 0x55 260k 253k" "$TEST_IMG" | _filter_qemu_io 112$QEMU_IO -c "read -P 0x0 513k 13k" "$TEST_IMG" | _filter_qemu_io 113$QEMU_IO -c "read -P 0x55 526k 498k" "$TEST_IMG" | _filter_qemu_io 114 115# success, all done 116echo "*** done" 117rm -f $seq.full 118status=0 119