1#!/bin/bash 2# 3# Test that opening O_DIRECT succeeds when image file I/O produces EIO 4# 5# Copyright (C) 2015 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=stefanha@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27here=`pwd` 28status=1 # failure is the default! 29 30devname="eiodev$$" 31sudo="" 32 33_sudo_qemu_io_wrapper() 34{ 35 (exec $sudo "$QEMU_IO_PROG" $QEMU_IO_OPTIONS "$@") 36} 37 38_setup_eiodev() 39{ 40 # This test should either be run as root or with passwordless sudo 41 for cmd in "" "sudo -n"; do 42 echo "0 $((1024 * 1024 * 1024 / 512)) error" | \ 43 $cmd dmsetup create "$devname" 2>/dev/null 44 if [ "$?" -eq 0 ]; then 45 sudo="$cmd" 46 return 47 fi 48 done 49 _notrun "root privileges required to run dmsetup" 50} 51 52_cleanup_eiodev() 53{ 54 for cmd in "" "sudo -n"; do 55 $cmd dmsetup remove "$devname" 2>/dev/null 56 if [ "$?" -eq 0 ]; then 57 return 58 fi 59 done 60} 61 62_cleanup() 63{ 64 _cleanup_eiodev 65} 66trap "_cleanup; exit \$status" 0 1 2 3 15 67 68# get standard environment, filters and checks 69. ./common.rc 70. ./common.filter 71 72_supported_fmt raw 73_supported_proto file 74_supported_os Linux 75 76_setup_eiodev 77 78TEST_IMG="/dev/mapper/$devname" 79 80echo 81echo "== reading from error device ==" 82# Opening image should succeed but the read operation should fail 83_sudo_qemu_io_wrapper --format "$IMGFMT" --nocache \ 84 -c "read 0 65536" "$TEST_IMG" \ 85 | _filter_qemu_io 86 87# success, all done 88echo "*** done" 89rm -f $seq.full 90status=0 91