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