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