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Use libdevmapper with DM, not ioctl()Use libdevmapper with DM, not ioctl()Posted Apr 27, 2010 4:44 UTC (Tue) by CChittleborough (subscriber, #60775)Parent article: Infrastructure unification in the block layer
Thanks for an interesting article. I'd like to add one point for people writing userland code: using ioctl() to talk to the device mapper is a Really Bad Idea. Use libdevmapper instead.
The device mapper's ioctl() interface is arcane and ugly, but libdevmapper hides all that, protecting your sanity, saving you effort and giving you source-level compatibility if the userland/DM interface ever changes.
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Use libdevmapper with DM, not ioctl() Posted Apr 27, 2010 9:09 UTC (Tue) by nix (subscriber, #2304) [Link]
... and since the userland/DM interface has already changed once (from a filesystem to an ioctl()) it seems wise to presume that it may change again.
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