__kernel_daddr_t
#define __kernel_daddr_t __kernel_daddr_t
#define __kernel_daddr_t __kernel_daddr_t
__kernel_daddr_t f_tfree;
typedef __kernel_daddr_t daddr_t;
#ifndef __kernel_daddr_t
__kernel_daddr_t mt_fileno; /* number of current file on tape */
__kernel_daddr_t mt_blkno; /* current block number */