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block: sed-opal: ioctl for writing to shadow mbr
Allow modification of the shadow mbr. If the shadow mbr is not marked as done, this data will be presented read only as the device content. Only after marking the shadow mbr as done and unlocking a locking range the actual content is accessible. Co-authored-by: David Kozub <zub@linux.fjfi.cvut.cz> Signed-off-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de> Signed-off-by: David Kozub <zub@linux.fjfi.cvut.cz> Reviewed-by: Scott Bauer <sbauer@plzdonthack.me> Reviewed-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Jun 29, 2019
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