tests/generic/704

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2022 Red Hat, Inc.  All Rights Reserved.
#
# FS QA Test No. 704
#
# Make sure logical-sector sized O_DIRECT write is allowed
#
. ./common/preamble
_begin_fstest auto quick

# Override the default cleanup function.
_cleanup()
{
	cd /
	rm -r -f $tmp.*
	[ -d "$SCSI_DEBUG_MNT" ] && _unmount $SCSI_DEBUG_MNT 2>/dev/null
	_put_scsi_debug_dev
}

# Import common functions.
. ./common/scsi_debug

[ "$FSTYP" = "xfs" ] && _fixed_by_kernel_commit 7c71ee78031c \
	"xfs: allow logical-sector sized O_DIRECT"

_require_scsi_debug
# If TEST_DEV is block device, make sure current fs is a localfs which can be
# written on scsi_debug device
_require_test
_require_block_device $TEST_DEV

size=$(_small_fs_size_mb 256)
echo "Get a device with 4096 physical sector size and 512 logical sector size"
SCSI_DEBUG_DEV=`_get_scsi_debug_dev 4096 512 0 $size`
blockdev --getpbsz --getss $SCSI_DEBUG_DEV

echo "mkfs and mount"
_mkfs_dev $SCSI_DEBUG_DEV || _fail "Can't make $FSTYP on scsi_debug device"
SCSI_DEBUG_MNT="$TEST_DIR/scsi_debug_$seq"
rm -rf $SCSI_DEBUG_MNT
mkdir $SCSI_DEBUG_MNT
run_check _mount $SCSI_DEBUG_DEV $SCSI_DEBUG_MNT

echo "DIO read/write 512 bytes"
# This dio write should succeed, even the physical sector size is 4096, but
# the logical sector size is 512
$XFS_IO_PROG -d -f -c "pwrite 0 512" $SCSI_DEBUG_MNT/testfile >> $seqres.full
$XFS_IO_PROG -d -c "pread 0 512" $SCSI_DEBUG_MNT/testfile >> $seqres.full

# success, all done
status=0
exit