TODO revision 1.2 
11.2ShaadImportant unimplemented features in current device-mapper implementation
21.2Shaad
31.2Shaad* implement dm_dev_event_ioctl and dm_target_msg_ioctl functions
41.2Shaad
51.2Shaad* write more targets mirror, stripe.
61.2Shaad
71.2Shaad* snapshot target, there is some code in repository already
81.2Shaad
91.2Shaad* enable dynamically loadable targets
101.2Shaad
111.2Shaad			Pain in the sky tasks
121.2Shaad
131.2Shaad* implement multipath target for network attached storage devices.
141.2Shaad
151.2Shaad* Cluster lvm extension, NetBSD needs Distributed Lock Manager for this.
161.2Shaad
171.2Shaad* write GPL free libdevmapper and lvm2tools.
181.2Shaad	
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