1#!/bin/bash 2# 3# Commit changes to backing file 4# 5# Copyright (C) 2009 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 $seq" 26 27here=`pwd` 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33 rm -f "$TEST_IMG.base" 34 rm -f "$TEST_IMG.orig" 35} 36trap "_cleanup; exit \$status" 0 1 2 3 15 37 38# get standard environment, filters and checks 39. ./common.rc 40. ./common.filter 41. ./common.pattern 42 43# Any format supporting backing files 44_supported_fmt qcow qcow2 vmdk qed 45_supported_proto generic 46_supported_os Linux 47_unsupported_imgopts "subformat=monolithicFlat" \ 48 "subformat=twoGbMaxExtentFlat" \ 49 "subformat=twoGbMaxExtentSparse" 50 51# NFS does not support bdrv_reopen_prepare thus qemu-img commit fails. 52if [ "$IMGPROTO" = "nfs" ]; then 53 _notrun "image protocol $IMGPROTO does not support bdrv_commit" 54fi 55 56TEST_OFFSETS="0 4294967296" 57 58TEST_IMG_SAVE="$TEST_IMG" 59TEST_IMG="$TEST_IMG.base" 60 61_make_test_img 6G 62 63echo "Filling base image" 64echo 65 66for offset in $TEST_OFFSETS; do 67 # Some clusters with alternating backing file/image file reads 68 io writev $(( offset )) 512 1024 64 69 70 # Complete backing clusters 71 io writev $(( offset + 64 * 1024)) 65536 65536 1 72done 73_check_test_img 74 75echo "Creating test image with backing file" 76echo 77 78TEST_IMG="$TEST_IMG_SAVE" 79_make_test_img -b "$TEST_IMG.base" 6G 80 81echo "Filling test image" 82echo 83 84for offset in $TEST_OFFSETS; do 85 # Some clusters with alternating backing file/image file reads 86 io writev $(( offset + 512 )) 512 1024 64 87 88 # Complete test image clusters 89 io writev $(( offset + 64 * 1024 + 65536)) 65536 65536 1 90done 91_check_test_img 92 93$QEMU_IMG commit "$TEST_IMG" 94TEST_IMG="$TEST_IMG.base" 95 96echo "Reading from the backing file" 97echo 98 99for offset in $TEST_OFFSETS; do 100 # Some clusters with alternating backing file/image file reads 101 io readv $(( offset )) 512 1024 64 102 io readv $(( offset + 512 )) 512 1024 64 103 104 # Complete test image clusters 105 io readv $(( offset + 64 * 1024)) 65536 65536 1 106 io readv $(( offset + 64 * 1024 + 65536)) 65536 65536 1 107 108 # Empty sectors 109 io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1 110done 111_check_test_img 112 113# success, all done 114echo "*** done" 115rm -f $seq.full 116status=0 117