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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. 329
#
# Test AIO DIO CoW behavior when the write temporarily fails.
#
. ./common/preamble
_begin_fstest auto quick clone eio
# Override the default cleanup function.
_cleanup()
{
cd /
rm -rf $tmp.* $TEST_DIR/moo
_dmerror_cleanup
}
# Import common functions.
. ./common/filter
. ./common/reflink
. ./common/dmerror
# real QA test starts here
_require_scratch_reflink
_require_cp_reflink
_require_dm_target error
_require_aiodio "aiocp"
echo "Format and mount"
_scratch_mkfs > $seqres.full 2>&1
_dmerror_init
_dmerror_mount >> $seqres.full 2>&1
testdir=$SCRATCH_MNT/test-$seq
mkdir $testdir
blksz=65536
nr=640
bufnr=128
filesize=$((blksz * nr))
bufsize=$((blksz * bufnr))
alignment=`_min_dio_alignment $TEST_DEV`
_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
echo "Create the original files"
$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $filesize" $testdir/file1 >> $seqres.full
_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
_dmerror_unmount
_dmerror_mount
echo "Compare files"
md5sum $testdir/file1 | _filter_scratch
md5sum $testdir/file2 | _filter_scratch
echo "CoW and unmount"
$XFS_IO_PROG -f -c "pwrite -S 0x63 $bufsize 1" $testdir/file2 >> $seqres.full
$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $TEST_DIR/moo >> $seqres.full
sync
_dmerror_load_error_table
$AIO_TEST -a $alignment -f DIRECT -b $bufsize $TEST_DIR/moo $testdir/file2 >> $seqres.full
_dmerror_load_working_table
_dmerror_unmount
_dmerror_mount
echo "Compare files"
md5sum $testdir/file1 | _filter_scratch
md5sum $testdir/file2 | _filter_scratch
echo "Check for damage"
_dmerror_unmount
_dmerror_cleanup
_repair_scratch_fs >> $seqres.full
# success, all done
status=0
exit
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