+ case BLKPBSZGET: /* get block device physical block size */
+ return put_uint(arg, bdev_physical_block_size(bdev));
+ case BLKIOMIN:
+ return put_uint(arg, bdev_io_min(bdev));
+ case BLKIOOPT:
+ return put_uint(arg, bdev_io_opt(bdev));
+ case BLKALIGNOFF:
+ return put_int(arg, bdev_alignment_offset(bdev));