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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2006 Silicon Graphics, Inc. All Rights Reserved.
#
# FSQA Test No. 047
#
# Test for NULL files problem
# test inode size is on disk after fsync
#
. ./common/preamble
_begin_fstest shutdown metadata rw auto fiemap
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_scratch
_require_scratch_shutdown
_require_xfs_io_command "fiemap"
_scratch_mkfs >/dev/null 2>&1
_require_metadata_journaling $SCRATCH_DEV
_scratch_mount
_check_files()
{
# check file size and contents
i=1;
while [ $i -lt 1000 ]
do
file=$SCRATCH_MNT/$i
# if file is missing then fsync failed
if [ -e $file ]
then
# if file size is not 32KB then fsync failed
if [ `ls -l $file | tr -s ' ' | cut -d ' ' -f 5` -eq 32768 ]
then
# if file has non-zero size but no extents then it's contents will be NULLs, bad.
num_extents=`_count_extents $file`
if [ $num_extents -eq 0 ]; then
echo corrupt file $file - non-zero size but no extents
else
rm -f $file
fi
else
echo file $file has incorrect size - fsync failed
fi
else
echo file $file missing - fsync failed
fi
let i=$i+1
done
}
# create files and fsync them
i=1;
while [ $i -lt 1000 ]
do
file=$SCRATCH_MNT/$i
$XFS_IO_PROG -f -c "pwrite -b 32k -S 0xff 0 32k" -c "fsync" $file > /dev/null
if [ $? -ne 0 ]
then
echo error creating/writing file $file
exit
fi
let i=$i+1
done
# shutdown immediately after, then remount and test
_scratch_shutdown
_scratch_unmount
_scratch_mount
_scratch_unmount
if [ ! _check_scratch_fs ]
then
echo error detected in filesystem
exit
fi
_scratch_mount
_check_files
status=0
exit
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