1 Important unimplemented features in current device-mapper implementation 2 3 * implement dm_dev_event_ioctl and dm_target_msg_ioctl functions 4 5 * review locking there is no device locking now, Device table can 6 be changed when IO is done on device. 7 8 * write more targets mirror, stripe. 9 10 Pain in the sky tasks 11 12 * implement multipath target for network attached storage devices. 13 14 * write GPL free libdevmapper and lvm2tools. 15 16