# USBperfext4

echo 'USBperf'
echo '--------'
echo 'ext4 device ?'
read device
echo "device= $device"
echo 'ok ?'
read ok
if [ $ok == ' ' ] || [ $ok == 'n' ] || [ $ok == 'N' ]
then
   echo 'nok - dus stoppen'
   exit 1
fi
echo "doe : no journaling ! tune2fs -O ^has_journal $device"
tune2fs -O ^has_journal $device
echo "use data mode for filesystem as writeback doe : tune2fs -o journal_data $device"
tune2fs -o journal_data_writeback $device
echo "disable reserved space "
tune2fs -m 0 $device
echo 'gedaan !'
read ok
echo "device= $device" 
exit 0