#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2014 Google Inc.  All Rights Reserved.
#
# FS QA Test No. 069
#
# Determine whether the extent size hint can be set on directories
# with allocated extents correctly.
#
. ./common/preamble
_begin_fstest ioctl auto quick

# Import common functions.
. ./common/filter
. ./common/punch


# Modify as appropriate.
_require_scratch

_scratch_mkfs_xfs >/dev/null 2>&1
_scratch_mount
_require_congruent_file_oplen $SCRATCH_MNT 8388608

small=$SCRATCH_MNT/small
big=$SCRATCH_MNT/big

# sanity check on a small directory
mkdir $small
# expect that an empty directory has no extents
$XFS_IO_PROG -c "bmap" $small | _filter_scratch
# and that we can set an extent size on it
$XFS_IO_PROG -c 'extsize 8m' $small
# and finally check that the extent size update has taken place
$XFS_IO_PROG -c "extsize" $small | _filter_scratch

# now create a 'big' (with extents) directory
mkdir $big
for idx in {0..1000}; do
    touch $big/$idx
done
$XFS_IO_PROG -c 'bmap -vp' $big | _filter_bmap | \
    grep -q '^0: .*data'
[ $? -eq 0 ] || echo "Can't force allocating extents!" 1>&2

# expect that we can set the extent size on $big as well
$XFS_IO_PROG -c 'extsize 8m' $big | _filter_scratch
# and that it took effect
$XFS_IO_PROG -c 'extsize' $big | _filter_scratch

# success, all done
status=0
exit
