1#!/usr/bin/env bash 2# group: rw backing auto quick 3# 4# Simple backing file reads 5# 6# Copyright (C) 2009 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 $seq" 27 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39. ./common.pattern 40 41# Any format supporting backing files 42_supported_fmt qcow qcow2 vmdk qed 43_supported_proto generic 44_unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat" \ 45 "subformat=streamOptimized" 46 47TEST_OFFSETS="0 4294967296" 48 49TEST_IMG_SAVE=$TEST_IMG 50TEST_IMG=$TEST_IMG.base 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 $(( offset + 64 * 1024)) 65536 65536 1 62done 63_check_test_img 64 65echo "Creating test image with backing file" 66echo 67 68TEST_IMG=$TEST_IMG_SAVE 69_make_test_img -b "$TEST_IMG.base" -F $IMGFMT 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 83echo "Reading" 84echo 85 86for offset in $TEST_OFFSETS; do 87 # Some clusters with alternating backing file/image file reads 88 io readv $(( offset )) 512 1024 64 89 io readv $(( offset + 512 )) 512 1024 64 90 91 # Complete test image clusters 92 io readv $(( offset + 64 * 1024)) 65536 65536 1 93 io readv $(( offset + 64 * 1024 + 65536)) 65536 65536 1 94 95 # Empty sectors 96 io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1 97done 98_check_test_img 99 100# success, all done 101echo "*** done" 102rm -f $seq.full 103status=0 104