Description of problem:
VDO has a 'prepare_ioctl' function that does nothing but return EINVAL. This is duplicate with the behavior of device mapper of a target without such a function, and as this function might soon change we should take out ours.
Version-Release number of selected component (if applicable):
Sanity testing passed on:
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.