blob: 8a1367c7975971331e47079e4632ea4a2a1b958c [file] [log] [blame]
#! /bin/bash
# FS QA Test No. 331
#
# Create a big enough rmapbt that we tickle a fdblocks accounting bug.
#
#-----------------------------------------------------------------------
# Copyright (c) 2016, Oracle and/or its affiliates. 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 -rf "$tmp".*
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/reflink
# real QA test starts here
_supported_os Linux
_supported_fs xfs
_require_scratch
_require_xfs_scratch_rmapbt
_require_scratch_reflink
_require_test_program "punch-alternating"
rm -f "$seqres.full"
echo "+ create scratch fs"
_scratch_mkfs > "$seqres.full" 2>&1
echo "+ mount fs image"
_scratch_mount
blksz="$(_get_block_size $SCRATCH_MNT)"
# btree header is 56 bytes; an rmapbt record is 24 bytes; and
# a rmapbt key/pointer pair is 44 bytes.
bt_ptrs=$(( (blksz - 56) / 44 ))
bt_recs=$(( (blksz - 56) / 24 ))
blocks=$((bt_ptrs * bt_recs + 1))
# Need (2 * blocks * blksz) bytes for files, and 20% for metadata
_require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 ))
len=$((blocks * blksz))
echo "+ make some files"
$XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full
$XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full
./src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full"
./src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full"
# success, all done
status=0
exit