tests/generic/349

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016 Oracle, Inc.  All Rights Reserved.
#
# FS QA Test No. 349
#
# Test fallocate(ZERO_RANGE) on a block device, which should be able to
# WRITE SAME (or equivalent) the range.
#
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 7 15

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

# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/scsi_debug

# real QA test starts here
_require_scsi_debug
_require_xfs_io_command "fzero"

echo "Create and format"
dev=$(_get_scsi_debug_dev 512 512 0 4 "lbpws=1 lbpws10=1")
_pwrite_byte 0x62 0 4m $dev >> $seqres.full

echo "Zero range"
$XFS_IO_PROG -c "fzero -k 512k 1m" $dev

echo "Zero range without keep_size"
$XFS_IO_PROG -c "fzero 384k 64k" $dev

echo "Zero range past EOD"
$XFS_IO_PROG -c "fzero -k 3m 4m" $dev

echo "Check contents"
md5sum $dev | sed -e "s|$dev|SCSI_DEBUG_DEV|g"

echo "Zero range to MAX_LFS_FILESIZE"
# zod = MAX_LFS_FILESIZE
zod=$(_get_max_lfs_filesize)
$XFS_IO_PROG -c "fzero -k 0 $zod" $dev

echo "Check contents"
md5sum $dev | sed -e "s|$dev|SCSI_DEBUG_DEV|g"

echo "Destroy device"
_put_scsi_debug_dev

# success, all done
status=0
exit