| #! /bin/bash |
| # FS QA Test 107 |
| # |
| # Test that calling fallocate against a range which is already |
| # allocated does not truncate beyond EOF |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2015 Fujitsu. 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 |
| . ./common/defrag |
| |
| # remove previous $seqres.full before test |
| rm -f $seqres.full |
| |
| # real QA test starts here |
| |
| _supported_fs btrfs |
| _supported_os Linux |
| _require_scratch |
| |
| # Use 64K file size to match any sectorsize |
| # And with a unaligned tailing range to ensure it will be at least 2 pages |
| filesize=$(( 64 * 1024 + 1024 )) |
| |
| # Fallocate a range that will not cover the tailing page |
| fallocrange=$(( 64 * 1024 )) |
| |
| _scratch_mkfs > /dev/null 2>&1 |
| _scratch_mount |
| $XFS_IO_PROG -f -c "pwrite 0 $filesize" $SCRATCH_MNT/foo | _filter_xfs_io |
| sync |
| orig_extent_nr=`_extent_count $SCRATCH_MNT/foo` |
| |
| # As all space are allocated and even written to disk, this falloc |
| # should do nothing with extent modification. |
| $XFS_IO_PROG -f -c "falloc 0 $fallocrange" $SCRATCH_MNT/foo |
| sync |
| new_extent_nr=`_extent_count $SCRATCH_MNT/foo` |
| |
| echo "orig: $orig_extent_nr, new: $new_extent_nr" >> $seqres.full |
| |
| if [ "x$orig_extent_nr" != "x$new_extent_nr" ]; then |
| echo "Extent beyond EOF is re-truncated" |
| echo "orig_extent_nr: $orig_extent_nr new_extent_nr: $new_extent_nr" |
| fi |
| |
| # success, all done |
| status=0 |
| exit |