#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015, Oracle and/or its affiliates.  All Rights Reserved.
#
# FS QA Test No. 129
#
# Ensure that we can create enough distinct reflink entries to force creation
# of a multi-level refcount btree, and that metadump will successfully copy
# said block.
#
. ./common/preamble
_begin_fstest auto quick clone metadump

# Override the default cleanup function.
_cleanup()
{
    cd /
    _scratch_unmount > /dev/null 2>&1
    _xfs_cleanup_verify_metadump
    rm -rf $tmp.* $testdir
}

# Import common functions.
. ./common/filter
. ./common/reflink
. ./common/metadump

# real QA test starts here
_supported_fs xfs
_require_command "$XFS_MDRESTORE_PROG" "xfs_mdrestore"
_require_loop
_require_scratch_reflink
_xfs_setup_verify_metadump

_scratch_mkfs >/dev/null 2>&1
_scratch_mount

testdir=$SCRATCH_MNT/test-$seq
mkdir $testdir

echo "Create the original file blocks"
blksz="$(_get_file_block_size $testdir)"
nr_blks=$((4 * blksz / 12))
_pwrite_byte 0x61 0 $((blksz * nr_blks)) $testdir/file1 >> $seqres.full

echo "Reflink every other block"
seq 1 2 $((nr_blks - 1)) | while read nr; do
	_reflink_range  $testdir/file1 $((nr * blksz)) \
			$testdir/file2 $((nr * blksz)) $blksz >> $seqres.full
done

_scratch_unmount

echo "Create metadump file, restore it and check restored fs"
_xfs_verify_metadumps

# success, all done
status=0
exit