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` 28tmp=/tmp/$$ 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_test_img 34 rm -f "$TEST_IMG.base" 35 rm -f "$TEST_IMG.orig" 36} 37trap "_cleanup; exit \$status" 0 1 2 3 15 38 39# get standard environment, filters and checks 40. ./common.rc 41. ./common.filter 42. ./common.pattern 43 44# Any format supporting backing files 45_supported_fmt qcow qcow2 vmdk qed 46_supported_proto generic 47_supported_os Linux 48 49TEST_OFFSETS="0 4294967296" 50 51_make_test_img 6G 52 53echo "Filling base image" 54echo 55 56for offset in $TEST_OFFSETS; do 57 # Some clusters with alternating backing file/image file reads 58 io writev $(( offset )) 512 1024 64 59 60 # Complete backing clusters 61 io writev $(( offset + 64 * 1024)) 65536 65536 1 62done 63_check_test_img 64 65echo "Creating test image with backing file" 66echo 67 68mv "$TEST_IMG" "$TEST_IMG.base" 69_make_test_img -b "$TEST_IMG.base" 6G 70 71echo "Filling test image" 72echo 73 74for offset in $TEST_OFFSETS; do 75 # Some clusters with alternating backing file/image file reads 76 io writev $(( offset + 512 )) 512 1024 64 77 78 # Complete test image clusters 79 io writev $(( offset + 64 * 1024 + 65536)) 65536 65536 1 80done 81_check_test_img 82 83$QEMU_IMG commit "$TEST_IMG" 84mv "$TEST_IMG.base" "$TEST_IMG" 85 86echo "Reading from the backing file" 87echo 88 89for offset in $TEST_OFFSETS; do 90 # Some clusters with alternating backing file/image file reads 91 io readv $(( offset )) 512 1024 64 92 io readv $(( offset + 512 )) 512 1024 64 93 94 # Complete test image clusters 95 io readv $(( offset + 64 * 1024)) 65536 65536 1 96 io readv $(( offset + 64 * 1024 + 65536)) 65536 65536 1 97 98 # Empty sectors 99 io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1 100done 101_check_test_img 102 103# success, all done 104echo "*** done" 105rm -f $seq.full 106status=0 107