#! /bin/bash
# FS QA Test No. 312
#
# ENOSPC in fallocate(2) could corrupt ext4 when file size > 4G
#
# Regression test for commit
# 29ae07b ext4: Fix overflow caused by missing cast in ext4_fallocate()
#
#-----------------------------------------------------------------------
# Copyright (c) 2013 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

# real QA test starts here
_supported_fs generic
_supported_os Linux
_require_xfs_io_command "falloc"
_require_scratch

# 5G in byte
fssize=$((2**30 * 5))

rm -f $seqres.full
_scratch_mkfs_sized $fssize >>$seqres.full 2>&1
_scratch_mount >>$seqres.full 2>&1

echo "Silence is golden"

# fallocate(2) a 6G(> 4G) file on a 5G fs
$XFS_IO_PROG -f -c "falloc 0 6g" $SCRATCH_MNT/testfile.$seq >>$seqres.full 2>&1

_scratch_unmount
status=0
exit
