| #! /bin/bash |
| # FS QA Test No. generic/064 |
| # |
| # Test multiple fallocate insert/collapse range calls on same file. |
| # Call insert range on alternate blocks multiple times until the file |
| # is left with 50 extents and as many holes. Then call collapse range |
| # on the previously inserted ranges to test merge code of collapse |
| # range. Also check for data integrity and file system consistency. |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2015 Samsung Electronics. 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 "rm -f $tmp.*; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_fs generic |
| _supported_os Linux |
| |
| _require_scratch |
| _require_xfs_io_command "fiemap" |
| _require_xfs_io_command "finsert" |
| _require_xfs_io_command "fcollapse" |
| |
| rm -f $seqres.full |
| |
| _scratch_mkfs >> $seqres.full 2>&1 || _fail "mkfs failed" |
| _scratch_mount |
| |
| src=$SCRATCH_MNT/testfile |
| dest=$SCRATCH_MNT/testfile.dest |
| BLOCKS=100 |
| BSIZE=`_get_block_size $SCRATCH_MNT` |
| length=$(($BLOCKS * $BSIZE)) |
| |
| # Write file |
| _do "$XFS_IO_PROG -f -c \"pwrite 0 $length\" -c fsync $src" |
| cp $src $dest |
| extent_before=`_count_extents $dest` |
| |
| # Insert alternate blocks |
| for (( j=0; j < $(($BLOCKS/2)); j++ )); do |
| offset=$((($j*$BSIZE)*2)) |
| _do "$XFS_IO_PROG -c \"finsert $offset $BSIZE\" $dest" |
| done |
| |
| # Check if 50 extents are present, allowing some slop for file systems |
| # that don't have ideal allocation behavior |
| num_extents=`_count_extents $dest` |
| _within_tolerance "Extent count after inserts" $num_extents 50 0 6% -v |
| |
| _check_scratch_fs |
| if [ $? -ne 0 ]; then |
| status=1 |
| exit |
| fi |
| |
| # Collapse alternate blocks |
| for (( j=0; j < $(($BLOCKS/2)); j++ )); do |
| offset=$((($j*$BSIZE))) |
| _do "$XFS_IO_PROG -c \"fcollapse $offset $BSIZE\" $dest" |
| done |
| |
| extent_after=`_count_extents $dest` |
| if [ $extent_before -ne $extent_after ]; then |
| echo "extents mismatched before = $extent_before after = $extent_after" |
| fi |
| |
| # compare original file and test file. |
| cmp $src $dest || _fail "file bytes check failed" |
| |
| # success, all done |
| status=0 |
| exit |