tests/generic/441

#! /bin/bash
# FS QA Test No. 441
#
# Open a file several times, write to it, fsync on all fds and make sure that
# they all return 0. Change the device to start throwing errors. Write again
# on all fds and fsync on all fds. Ensure that we get errors on all of them.
# Then fsync on all one last time and verify that all return 0.
#
#-----------------------------------------------------------------------
# Copyright (c) 2017, Jeff Layton <jlayton@redhat.com>
#
# 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.
#
# This program is distributed in the hope that it would 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, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#-----------------------------------------------------------------------

seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1    # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -rf $tmp.* $testdir
	_dmerror_cleanup
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/dmerror

# real QA test starts here
_supported_os Linux
_require_scratch
# This test uses "dm" without taking into account the data could be on
# realtime subvolume, thus the test will fail with rtinherit=1
_require_no_rtinherit

# Generally, we want to avoid journal errors on the extended testcase. Only
# unset the -s flag if we have a logdev
sflag='-s'
case $FSTYP in
	btrfs)
		_notrun "btrfs has a specialized test for this"
		;;
	ext3|ext4|xfs)
		# Do the more thorough test if we have a logdev
		_has_logdev && sflag=''
		;;
	*)
		;;
esac

_require_dm_target error
_require_test_program fsync-err
_require_test_program dmerror

rm -f $seqres.full

echo "Format and mount"
_scratch_mkfs > $seqres.full 2>&1
_dmerror_init
_dmerror_mount

_require_fs_space $SCRATCH_MNT 65536

testfile=$SCRATCH_MNT/fsync-err-test

echo "$here/src/fsync-err $sflag -d $here/src/dmerror $testfile" >> $seqres.full
$here/src/fsync-err $sflag -d $here/src/dmerror $testfile

# success, all done
_dmerror_load_working_table
_dmerror_unmount
_dmerror_cleanup

# fs may be corrupt after this -- attempt to repair it
_repair_scratch_fs >> $seqres.full

status=0
exit