#! /bin/bash
# FS QA Test No. 240
#
# Test that non-block-aligned aio+dio into holes does not leave
# zero'd out portions of the file
#
# QEMU IO to a file-backed device with misaligned partitions
# can send this sort of IO
#
# This test need only be run in the case where the logical block size
# of the device can be smaller than the file system block size.
#
#-----------------------------------------------------------------------
# Copyright (c) 2010 Red Hat, Inc.  All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#-----------------------------------------------------------------------
#

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 15

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

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

_supported_fs generic
_supported_os Linux

_require_test
_require_sparse_files
_require_aiodio aiodio_sparse2

echo "Silence is golden."

# real QA test starts here
rm -f $seqres.full

rm -f $TEST_DIR/aiodio_sparse

logical_block_size=`_min_dio_alignment $TEST_DEV`
fs_block_size=`get_block_size $TEST_DIR`
file_size=$((8 * $fs_block_size))

if [ $fs_block_size -le $logical_block_size ]; then
	_notrun "fs block size must be larger than the device block size.  fs block size: $fs_block_size, device block size: $logical_block_size"
fi

# 2 threads, fs block sized writes, filesize, stride through file by
# fs block size, start at logical block size offset
$AIO_TEST -i 2 -w $fs_block_size -s $file_size -n $fs_block_size -o $logical_block_size "$TEST_DIR/aiodio_sparse"

status=$?
exit
