|  | #!/usr/bin/env bash | 
|  | # group: rw auto | 
|  | # | 
|  | # Test switching between read-only and read-write | 
|  | # | 
|  | # Copyright (C) 2017 Red Hat, Inc. | 
|  | # | 
|  | # This program is free software; you can redistribute it and/or modify | 
|  | # it under the terms of the GNU General Public License as published by | 
|  | # the Free Software Foundation; either version 2 of the License, or | 
|  | # (at your option) any later version. | 
|  | # | 
|  | # This program is distributed in the hope that it will be useful, | 
|  | # but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | # GNU General Public License for more details. | 
|  | # | 
|  | # You should have received a copy of the GNU General Public License | 
|  | # along with this program.  If not, see <http://www.gnu.org/licenses/>. | 
|  | # | 
|  |  | 
|  | # creator | 
|  | owner=kwolf@redhat.com | 
|  |  | 
|  | seq=`basename $0` | 
|  | echo "QA output created by $seq" | 
|  |  | 
|  | status=1	# failure is the default! | 
|  |  | 
|  | _cleanup() | 
|  | { | 
|  | _cleanup_test_img | 
|  | _rm_test_img "$TEST_IMG.2" | 
|  | _rm_test_img "$TEST_IMG.3" | 
|  | } | 
|  | trap "_cleanup; exit \$status" 0 1 2 3 15 | 
|  |  | 
|  | # get standard environment, filters and checks | 
|  | . ./common.rc | 
|  | . ./common.filter | 
|  |  | 
|  | _supported_fmt qcow2 | 
|  | _supported_proto file fuse | 
|  |  | 
|  | size=64M | 
|  | _make_test_img $size | 
|  |  | 
|  | echo | 
|  | echo "Start from read-only" | 
|  | echo | 
|  |  | 
|  | $QEMU_IO -r -c 'write 0 64k' $TEST_IMG | _filter_qemu_io | 
|  | $QEMU_IO -r -c 'reopen -w' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io | 
|  | $QEMU_IO -r -c 'reopen -w' -c 'reopen -r' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io | 
|  |  | 
|  | echo | 
|  | echo "Start from read-write" | 
|  | echo | 
|  |  | 
|  | $QEMU_IO -c 'write 0 64k' $TEST_IMG | _filter_qemu_io | 
|  | $QEMU_IO -c 'reopen -r' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io | 
|  | $QEMU_IO -c 'reopen -r' -c 'reopen -w' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io | 
|  |  | 
|  |  | 
|  | # success, all done | 
|  | echo "*** done" | 
|  | rm -f $seq.full | 
|  | status=0 |