| #! /bin/bash |
| # FS QA Test No. 203 |
| # |
| # Test out reallocation of the extent array in xfs_io. |
| # Based on a testcase from Tomasz Majkowski <moosh009@gmail.com>. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2009 Christoph Hellwig. |
| # |
| # 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=hch@lst.de |
| |
| seq=`basename $0` |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| |
| _write_holes() |
| { |
| file=$1 |
| holes=$2 |
| let writes=$holes+1 |
| let fsize=$(($writes * 0x100000)) |
| |
| # prevent EOF preallocation from affecting results |
| xfs_io -f $file -c "truncate $fsize" |
| |
| offset=0 |
| for i in `seq 0 $writes`; do |
| xfs_io -f $file -c "pwrite -q $offset 64k" |
| let offset=$offset+0x100000 |
| done |
| } |
| |
| # 0: [0..7]: 104..111 |
| # 1: [8..2047]: hole |
| _filter_bmap() |
| { |
| _filter_scratch | |
| awk '$3 ~ /hole/ { print $1, $2, $3; next } |
| {print $1, $2; next}' |
| } |
| |
| _cleanup() |
| { |
| rm -f $SCRATCH_MNT/r?? |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| rm -f $seq.full |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| |
| # real QA test starts here |
| _supported_fs xfs |
| _supported_os Linux |
| _require_scratch |
| _scratch_mkfs > /dev/null 2>&1 |
| _scratch_mount > /dev/null 2>&1 |
| |
| for i in 10 14 15 16 17 28 29 30 31; do |
| rm -f $SCRATCH_MNT/hole_file |
| _write_holes $SCRATCH_MNT/hole_file${i} ${i} |
| done |
| |
| for i in 10 14 15 16 17 28 29 30 31; do |
| xfs_bmap $SCRATCH_MNT/hole_file${i} | _filter_bmap |
| echo |
| done |
| |
| # success, all done |
| echo "*** done" |
| status=0 |