#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016, Oracle and/or its affiliates.  All Rights Reserved.
#
# FS QA Test No. 329
#
# Ensure that xfs_fsr handles errors correctly while defragging files.
#
seq=`basename "$0"`
seqres="$RESULT_DIR/$seq"
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1    # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -rf "$tmp".*
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/attr
. ./common/reflink
. ./common/inject

# real QA test starts here
_supported_fs xfs
_require_scratch_reflink
_require_cp_reflink
_require_command "$XFS_FSR_PROG" "xfs_fsr"
_require_xfs_io_error_injection "bmap_finish_one"
_require_xfs_scratch_rmapbt

rm -f "$seqres.full"

echo "Format and mount"
_scratch_mkfs > "$seqres.full" 2>&1
_scratch_mount >> "$seqres.full" 2>&1

testdir="$SCRATCH_MNT/test-$seq"
blksz=65536
blks=3
mkdir "$testdir"

echo "Create a many-block file"
_pwrite_byte 0x62 0 $((blksz * blks)) $testdir/file1 >> $seqres.full
_pwrite_byte 0x63 0 $blksz $testdir/file2 >> $seqres.full
_reflink_range $testdir/file2 0 $testdir/file1 $blksz $blksz >> $seqres.full
_scratch_cycle_mount
$XFS_IO_PROG -c 'bmap -v' $testdir/file1 >> $seqres.full

echo "Inject error"
_scratch_inject_error "bmap_finish_one"

echo "Defrag the file"
old_nextents=$(_count_extents $testdir/file1)
$XFS_FSR_PROG -v -d $testdir/file1 >> $seqres.full 2>&1

echo "FS should be shut down, touch will fail"
touch $SCRATCH_MNT/badfs 2>&1 | _filter_scratch

echo "Remount to replay log" | tee /dev/ttyprintk
_scratch_inject_logprint >> $seqres.full
new_nextents=$(_count_extents $testdir/file1)

echo "Check extent count" | tee /dev/ttyprintk
$XFS_IO_PROG -c 'stat -v' $testdir/file1 >> $seqres.full
$XFS_IO_PROG -c 'stat -v' $testdir/file2 >> $seqres.full
echo "extents: $old_nextents -> $new_nextents" >> $seqres.full

echo "FS should be online, touch should succeed"
touch $SCRATCH_MNT/goodfs
$XFS_IO_PROG -c 'bmap -v' $testdir/file1 >> $seqres.full

# success, all done
status=0
exit