| #! /bin/bash |
| # FS QA Test No. 226 |
| # |
| # Test for prealloc space leaks by rewriting the same file in a loop |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2009 Eric Sandeen. 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 |
| # |
| #----------------------------------------------------------------------- |
| # |
| # creator |
| owner=sandeen@sandeen.net |
| |
| seq=`basename $0` |
| 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 |
| |
| _supported_fs generic |
| _supported_os Linux IRIX |
| _require_scratch |
| |
| # real QA test starts here |
| rm -f $seq.full |
| |
| umount $SCRATCH_DEV 2>/dev/null |
| echo "--> mkfs 256m filesystem" |
| _scratch_mkfs_sized `expr 256 \* 1024 \* 1024` >> $seq.full 2>&1 |
| _scratch_mount |
| |
| loops=16 |
| |
| # Buffer size argument supplied to xfs_io "pwrite" command |
| buffer="-b $(expr 512 \* 1024)" |
| |
| echo "--> $loops buffered 64m writes in a loop" |
| for I in `seq 1 $loops`; do |
| echo -n "$I " |
| xfs_io -F -f \ |
| -c "pwrite ${buffer} 0 64m" $SCRATCH_MNT/test >> $seq.full |
| rm -f $SCRATCH_MNT/test |
| done |
| |
| echo |
| umount $SCRATCH_DEV |
| _scratch_mount |
| |
| echo "--> $loops direct 64m writes in a loop" |
| for I in `seq 1 $loops`; do |
| echo -n "$I " |
| xfs_io -F -f -d \ |
| -c "pwrite ${buffer} 0 64m" $SCRATCH_MNT/test >> $seq.full |
| rm -f $SCRATCH_MNT/test |
| done |
| |
| echo |
| umount $SCRATCH_DEV |
| |
| status=0 |
| exit |