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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
#
# FS QA Test No. 236
#
# Ensure that we can create enough distinct rmapbt entries to force creation
# of a multi-level rmap btree. Delete and recreate a few times to
# exercise the rmap btree grow/shrink functions.
#
. ./common/preamble
_begin_fstest auto rmap punch
# Override the default cleanup function.
_cleanup()
{
cd /
umount $SCRATCH_MNT > /dev/null 2>&1
rm -rf $tmp.*
}
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs xfs
_require_xfs_scratch_rmapbt
_require_xfs_io_command "fpunch"
_scratch_mkfs >/dev/null 2>&1
_scratch_mount
testdir=$SCRATCH_MNT/test-$seq
mkdir $testdir
echo "Create the original file blocks"
blksz="$(_get_block_size $testdir)"
nr_blks=$((8 * blksz / 12))
for i in 1 2 x; do
_pwrite_byte 0x61 0 $((blksz * nr_blks)) $testdir/file1 >> $seqres.full
_pwrite_byte 0x62 0 $((blksz * nr_blks)) $testdir/file2 >> $seqres.full
sync
echo "$i: Reflink every other block"
seq 1 2 $((nr_blks - 1)) | while read nr; do
$XFS_IO_PROG -c "fpunch $((nr * blksz)) $blksz" $testdir/file2 >> $seqres.full
done
umount $SCRATCH_MNT
_check_scratch_fs
_scratch_mount
test $i = "x" && break
echo "$i: Delete both files"
rm -rf $testdir/file1 $testdir/file2
umount $SCRATCH_MNT
_check_scratch_fs
_scratch_mount
done
# success, all done
status=0
exit
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