#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2019 SUSE Linux Products GmbH. All Rights Reserved.
#
# FS QA Test No. 547
#
# Run fsstress, fsync every file and directory, simulate a power failure and
# then verify that all files and directories exist, with the same data and
# metadata they had before the power failure.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
tmp=/tmp/$$
status=1	# failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	_cleanup_flakey
	cd /
	rm -f $tmp.*
}

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

# real QA test starts here
_supported_fs generic
_require_test
_require_scratch
_require_fssum
_require_dm_target flakey

rm -f $seqres.full

fssum_files_dir=$TEST_DIR/generic-test-$seq
rm -fr $fssum_files_dir
mkdir $fssum_files_dir

_scratch_mkfs >>$seqres.full 2>&1
_require_metadata_journaling $SCRATCH_DEV
_init_flakey
_mount_flakey

mkdir $SCRATCH_MNT/test
args=`_scale_fsstress_args -p 4 -n 100 $FSSTRESS_AVOID -d $SCRATCH_MNT/test`
args="$args -f mknod=0 -f symlink=0"
echo "Running fsstress with arguments: $args" >>$seqres.full
$FSSTRESS_PROG $args >>$seqres.full

# Fsync every file and directory.
find $SCRATCH_MNT/test \( -type f -o -type d \) -exec $XFS_IO_PROG -c fsync {} \;

# Compute a digest of the filesystem (using the test directory only, to skip
# fs specific directories such as "lost+found" on ext4 for example).
$FSSUM_PROG -A -f -w $fssum_files_dir/fs_digest $SCRATCH_MNT/test

# Simulate a power failure and mount the filesystem to check that all files and
# directories exist and have all data and metadata preserved.
_flakey_drop_and_remount

# Compute a new digest and compare it to the one we created previously, they
# must match.
$FSSUM_PROG -r $fssum_files_dir/fs_digest $SCRATCH_MNT/test

_unmount_flakey

status=0
exit