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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2018 SUSE Linux Products GmbH. All Rights Reserved.
#
# FS QA Test No. 498
#
# Test that if we create a new hard link for a file which was previously
# fsync'ed, fsync a parent directory of the new hard link and power fail,
# the parent directory exists after mounting the filesystem again.
#
. ./common/preamble
_begin_fstest auto quick log
# Override the default cleanup function.
_cleanup()
{
_cleanup_flakey
cd /
rm -f $tmp.*
}
# Import common functions.
. ./common/filter
. ./common/dmflakey
# real QA test starts here
_supported_fs generic
_require_scratch
_require_hardlinks
_require_dm_target flakey
_scratch_mkfs >>$seqres.full 2>&1
_require_metadata_journaling $SCRATCH_DEV
_init_flakey
_mount_flakey
mkdir $SCRATCH_MNT/A
mkdir $SCRATCH_MNT/B
mkdir $SCRATCH_MNT/A/C
touch $SCRATCH_MNT/B/foo
$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/B/foo
# It is important the new hard link is located in a hierarchy of new directories
# (not yet persisted).
ln $SCRATCH_MNT/B/foo $SCRATCH_MNT/A/C/foo
$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/A
# Simulate a power failure and mount the filesystem to check that what we
# explicitly fsync'ed exists.
_flakey_drop_and_remount
[ -d $SCRATCH_MNT/A ] || echo "directory A missing"
[ -f $SCRATCH_MNT/B/foo ] || echo "file B/foo is missing"
_unmount_flakey
echo "Silence is golden"
status=0
exit
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