info { int lo_number; /* ioctl r/o */ dev_t lo_device; /* ioctl r/o */ unsigned long ... inode; /* ioctl r/o */ dev_t lo_rdevice; /* ioctl r/o */ int lo_offset; int lo_encryptinfo { int lo_number; /* ioctl r/o */ dev_t lo_device; /* ioctl r/o */ unsigned long ... inode; /* ioctl r/o */ dev_t lo_rdevice; /* ioctl r/o */ int lo_offset; int lo_encrypt