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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved.
#
# FSQA Test No. 120
#
# Test that if we delete a snapshot, delete its parent directory, create
# another directory with the same name as that parent and then fsync either
# the new directory or a file inside the new directory, the fsync succeeds,
# the fsync log is replayable and produces a correct result.
#
. ./common/preamble
_begin_fstest auto quick snapshot metadata log
# Override the default cleanup function.
_cleanup()
{
_cleanup_flakey
cd /
rm -f $tmp.*
}
. ./common/filter
. ./common/dmflakey
_supported_fs btrfs
_require_scratch
_require_dm_target flakey
populate_testdir()
{
_btrfs subvolume snapshot $SCRATCH_MNT \
$SCRATCH_MNT/testdir/snap
_btrfs subvolume delete $SCRATCH_MNT/testdir/snap
rmdir $SCRATCH_MNT/testdir
mkdir $SCRATCH_MNT/testdir
}
_scratch_mkfs >>$seqres.full 2>&1
_require_metadata_journaling $SCRATCH_DEV
_init_flakey
_mount_flakey
mkdir $SCRATCH_MNT/testdir
populate_testdir
$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/testdir
_flakey_drop_and_remount
echo "Filesystem contents after the first log replay:"
ls -R $SCRATCH_MNT | _filter_scratch
# Now do the same as before but instead of doing an fsync against the directory,
# do an fsync against a file inside the directory.
populate_testdir
touch $SCRATCH_MNT/testdir/foobar
$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/testdir/foobar
_flakey_drop_and_remount
echo "Filesystem contents after the second log replay:"
ls -R $SCRATCH_MNT | _filter_scratch
_unmount_flakey
status=0
exit
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