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` 28tmp=/tmp/$$ 29status=1 # failure is the default! 30 31devname="eiodev$$" 32sudo="" 33 34_sudo_qemu_io_wrapper() 35{ 36 (exec $sudo "$QEMU_IO_PROG" $QEMU_IO_OPTIONS "$@") 37} 38 39_setup_eiodev() 40{ 41 # This test should either be run as root or with passwordless sudo 42 for cmd in "" "sudo -n"; do 43 echo "0 $((1024 * 1024 * 1024 / 512)) error" | \ 44 $cmd dmsetup create "$devname" 2>/dev/null 45 if [ "$?" -eq 0 ]; then 46 sudo="$cmd" 47 return 48 fi 49 done 50 _notrun "root privileges required to run dmsetup" 51} 52 53_cleanup_eiodev() 54{ 55 for cmd in "" "sudo -n"; do 56 $cmd dmsetup remove "$devname" 2>/dev/null 57 if [ "$?" -eq 0 ]; then 58 return 59 fi 60 done 61} 62 63_cleanup() 64{ 65 _cleanup_eiodev 66} 67trap "_cleanup; exit \$status" 0 1 2 3 15 68 69# get standard environment, filters and checks 70. ./common.rc 71. ./common.filter 72 73_supported_fmt raw 74_supported_proto file 75_supported_os Linux 76 77_setup_eiodev 78 79TEST_IMG="/dev/mapper/$devname" 80 81echo 82echo "== reading from error device ==" 83# Opening image should succeed but the read operation should fail 84_sudo_qemu_io_wrapper --format "$IMGFMT" --nocache \ 85 -c "read 0 65536" "$TEST_IMG" \ 86 | _filter_qemu_io 87 88# success, all done 89echo "*** done" 90rm -f $seq.full 91status=0 92