block: sed-opal: add ioctl for done-mark of shadow mbr

Enable users to mark the shadow mbr as done without completely
deactivating the shadow mbr feature. This may be useful on reboots,
when the power to the disk is not disconnected in between and the shadow
mbr stores the required boot files. Of course, this saves also the
(few) commands required to enable the feature if it is already enabled
and one only wants to mark the shadow mbr as done.

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: Christoph Hellwig <hch@lst.de>
Reviewed by: Scott Bauer <sbauer@plzdonthack.me>
Reviewed-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/sed-opal.h b/include/linux/sed-opal.h
index f03bbffd3281..f834e8a1495f 100644
--- a/include/linux/sed-opal.h
+++ b/include/linux/sed-opal.h
@@ -40,6 +40,7 @@ static inline bool is_sed_ioctl(unsigned int cmd)
 	case IOC_OPAL_ERASE_LR:
 	case IOC_OPAL_SECURE_ERASE_LR:
 	case IOC_OPAL_PSID_REVERT_TPR:
+	case IOC_OPAL_MBR_DONE:
 		return true;
 	}
 	return false;