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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. 315
#
# Reflink a file with a few dozen extents and CoW a few blocks.
# Inject an error during extent freeing to test log recovery.
#
. ./common/preamble
_begin_fstest auto quick clone
# Override the default cleanup function.
_cleanup()
{
cd /
_scratch_unmount > /dev/null 2>&1
rm -rf $tmp.*
}
# Import common functions.
. ./common/filter
. ./common/reflink
. ./common/inject
# real QA test starts here
_supported_fs xfs
_require_cp_reflink
_require_scratch_reflink
_require_error_injection
_require_xfs_io_command "cowextsize"
_require_xfs_io_error_injection "free_extent"
blksz=65536
blks=4
sz=$((blksz * blks))
echo "Format filesystem"
_scratch_mkfs >/dev/null 2>&1
_scratch_mount >> $seqres.full
_require_congruent_file_oplen $SCRATCH_MNT $blksz
$XFS_IO_PROG -c "cowextsize $sz" $SCRATCH_MNT
echo "Create files"
_pwrite_byte 0x66 0 $sz $SCRATCH_MNT/file1 >> $seqres.full
_pwrite_byte 0x66 $((sz / 2)) $((sz / 2)) $SCRATCH_MNT/file2 >> $seqres.full
_reflink_range $SCRATCH_MNT/file1 0 $SCRATCH_MNT/file2 0 $((sz / 2)) >> $seqres.full
sync
echo "Check files"
md5sum $SCRATCH_MNT/file1 | _filter_scratch
md5sum $SCRATCH_MNT/file2 | _filter_scratch
echo "Inject error"
_scratch_inject_error "free_extent"
echo "CoW a few blocks"
$XFS_IO_PROG -c "pwrite -W -S 0x67 -b $sz 0 $sz" $SCRATCH_MNT/file1 >> $seqres.full 2>&1
sync
echo "FS should be shut down, touch will fail"
touch $SCRATCH_MNT/badfs 2>&1 | _filter_scratch
echo "Remount to replay log"
_scratch_remount_dump_log >> $seqres.full
echo "FS should be online, touch should succeed"
touch $SCRATCH_MNT/goodfs
echo "Check files again"
md5sum $SCRATCH_MNT/file1 | _filter_scratch
md5sum $SCRATCH_MNT/file2 | _filter_scratch
echo "Done"
# success, all done
status=0
exit
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