The ioctls' struct allows the user to provide a metadata address and
length for a passthrough command. This patch uses these values that were
previously ignored and deletes the now unused wrapper function.
Signed-off-by: NKeith Busch <keith.busch@intel.com>
Reviewed-by: NSagi Grimberg <sagi@grimberg.me>
Reviewed-by: NMax Gurtovoy <maxg@mellanox.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>