1#!/usr/bin/env bash 2# group: rw auto backing quick 3# 4# Test bdrv_pwrite_zeroes with backing files (see also 154) 5# 6# Copyright (C) 2012 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# creator 23owner=kwolf@redhat.com 24 25seq=`basename $0` 26echo "QA output created by $seq" 27 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40_supported_fmt qcow qcow2 vmdk qed 41_supported_proto file fuse 42_supported_os Linux 43_unsupported_imgopts "subformat=monolithicFlat" \ 44 "subformat=twoGbMaxExtentFlat" \ 45 "subformat=twoGbMaxExtentSparse" \ 46 "subformat=streamOptimized" 47 48CLUSTER_SIZE=4k 49size=128M 50 51echo 52echo "== creating backing file for COW tests ==" 53 54TEST_IMG_SAVE="$TEST_IMG" 55TEST_IMG="$TEST_IMG.base" 56 57_make_test_img $size 58$QEMU_IO -c "write -P 0x55 0 1M" "$TEST_IMG" | _filter_qemu_io 59 60TEST_IMG="$TEST_IMG_SAVE" 61 62_make_test_img -b "$TEST_IMG.base" -F $IMGFMT 6G 63 64echo 65echo "== zero write with backing file ==" 66$QEMU_IO -c "write -z 64k 192k" "$TEST_IMG" | _filter_qemu_io 67$QEMU_IO -c "write -z 513k 13k" "$TEST_IMG" | _filter_qemu_io 68 69_check_test_img 70 71echo 72echo "== verifying patterns (3) ==" 73$QEMU_IO -c "read -P 0x55 0 64k" "$TEST_IMG" | _filter_qemu_io 74$QEMU_IO -c "read -P 0x0 64k 192k" "$TEST_IMG" | _filter_qemu_io 75$QEMU_IO -c "read -P 0x55 256k 257k" "$TEST_IMG" | _filter_qemu_io 76$QEMU_IO -c "read -P 0x0 513k 13k" "$TEST_IMG" | _filter_qemu_io 77$QEMU_IO -c "read -P 0x55 526k 498k" "$TEST_IMG" | _filter_qemu_io 78 79echo 80echo "== overwriting zero cluster ==" 81$QEMU_IO -c "write -P 0xa 60k 8k" "$TEST_IMG" | _filter_qemu_io 82$QEMU_IO -c "write -P 0xb 64k 8k" "$TEST_IMG" | _filter_qemu_io 83$QEMU_IO -c "write -P 0xc 76k 4k" "$TEST_IMG" | _filter_qemu_io 84$QEMU_IO -c "write -P 0xd 252k 8k" "$TEST_IMG" | _filter_qemu_io 85$QEMU_IO -c "write -P 0xe 248k 8k" "$TEST_IMG" | _filter_qemu_io 86 87_check_test_img 88 89echo 90echo "== verifying patterns (4) ==" 91$QEMU_IO -c "read -P 0x55 0 60k" "$TEST_IMG" | _filter_qemu_io 92$QEMU_IO -c "read -P 0xa 60k 4k" "$TEST_IMG" | _filter_qemu_io 93$QEMU_IO -c "read -P 0xb 64k 8k" "$TEST_IMG" | _filter_qemu_io 94$QEMU_IO -c "read -P 0x0 72k 4k" "$TEST_IMG" | _filter_qemu_io 95$QEMU_IO -c "read -P 0xc 76k 4k" "$TEST_IMG" | _filter_qemu_io 96$QEMU_IO -c "read -P 0x0 80k 168k" "$TEST_IMG" | _filter_qemu_io 97$QEMU_IO -c "read -P 0xe 248k 8k" "$TEST_IMG" | _filter_qemu_io 98$QEMU_IO -c "read -P 0xd 256k 4k" "$TEST_IMG" | _filter_qemu_io 99$QEMU_IO -c "read -P 0x55 260k 64k" "$TEST_IMG" | _filter_qemu_io 100 101echo 102echo "== re-zeroing overwritten area ==" 103$QEMU_IO -c "write -z 64k 192k" "$TEST_IMG" | _filter_qemu_io 104 105_check_test_img 106 107echo 108echo "== verifying patterns (5) ==" 109$QEMU_IO -c "read -P 0x55 0 60k" "$TEST_IMG" | _filter_qemu_io 110$QEMU_IO -c "read -P 0xa 60k 4k" "$TEST_IMG" | _filter_qemu_io 111$QEMU_IO -c "read -P 0x0 64k 192k" "$TEST_IMG" | _filter_qemu_io 112$QEMU_IO -c "read -P 0xd 256k 4k" "$TEST_IMG" | _filter_qemu_io 113$QEMU_IO -c "read -P 0x55 260k 253k" "$TEST_IMG" | _filter_qemu_io 114$QEMU_IO -c "read -P 0x0 513k 13k" "$TEST_IMG" | _filter_qemu_io 115$QEMU_IO -c "read -P 0x55 526k 498k" "$TEST_IMG" | _filter_qemu_io 116 117# success, all done 118echo "*** done" 119rm -f $seq.full 120status=0 121