| ##/bin/bash |
| # |
| # 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 |
| # |
| # |
| # Functions useful for defragmentation tests |
| # |
| |
| _require_defrag() |
| { |
| case "$FSTYP" in |
| xfs) |
| DEFRAG_PROG=/usr/sbin/xfs_fsr |
| ;; |
| ext4|ext4dev) |
| DEFRAG_PROG=/usr/bin/e4defrag |
| ;; |
| *) |
| _notrun "defragmentation not supported for fstype \"$FSTYP\"" |
| ;; |
| esac |
| |
| _require_command $DEFRAG_PROG |
| _require_command /usr/sbin/filefrag |
| } |
| |
| _extent_count() |
| { |
| filefrag $1 | awk '{print $2}' |
| filefrag -v $1 >> $seq.full 2>&1 |
| } |
| |
| # Defrag file, check it, and remove it. |
| _defrag() |
| { |
| echo -n "Before: " |
| _extent_count $1 |
| CSUM_BEFORE=`md5sum $1` |
| STAT_BEFORE=`stat -c "a: %x m: %y c: %z" $1` |
| $DEFRAG_PROG -v $1 >> $seq.full 2>&1 |
| _scratch_remount |
| STAT_AFTER=`stat -c "a: %x m: %y c: %z" $1` |
| CSUM_AFTER=`md5sum $1` |
| echo -n "After: " |
| _extent_count $1 |
| if [ "$CSUM_BEFORE" != "$CSUM_AFTER" ]; then |
| _fail "file checksum changed post-defrag ($CSUM_BEFORE/$CSUM_AFTER)" |
| fi |
| if [ "$STAT_BEFORE" != "$STAT_AFTER" ]; then |
| _fail "file timestamps changed post-defrag:\n$STAT_BEFORE\n$STAT_AFTER" |
| fi |
| rm -f $1 |
| } |
| |