#ifndef _LINUX_MINIX_FS_H
  #define _LINUX_MINIX_FS_H

  #include <linux/types.h>

  #include <linux/magic.h>

  /*
   * The minix filesystem constants/structures
   */
  
  /*
   * Thanks to Kees J Bot for sending me the definitions of the new
   * minix filesystem (aka V2) with bigger inodes and 32-bit block
   * pointers.
   */
  
  #define MINIX_ROOT_INO 1
  
  /* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */
  #define MINIX_LINK_MAX	250
  #define MINIX2_LINK_MAX	65530
  
  #define MINIX_I_MAP_SLOTS	8
  #define MINIX_Z_MAP_SLOTS	64

  #define MINIX_VALID_FS		0x0001		/* Clean fs. */
  #define MINIX_ERROR_FS		0x0002		/* fs has errors. */
  
  #define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))

  
  /*
   * This is the original minix inode layout on disk.
   * Note the 8-bit gid and atime and ctime.
   */
  struct minix_inode {
  	__u16 i_mode;
  	__u16 i_uid;
  	__u32 i_size;
  	__u32 i_time;
  	__u8  i_gid;
  	__u8  i_nlinks;
  	__u16 i_zone[9];
  };
  
  /*
   * The new minix inode has all the time entries, as well as
   * long block numbers and a third indirect block (7+1+1+1
   * instead of 7+1+1). Also, some previously 8-bit values are
   * now 16-bit. The inode is now 64 bytes instead of 32.
   */
  struct minix2_inode {
  	__u16 i_mode;
  	__u16 i_nlinks;
  	__u16 i_uid;
  	__u16 i_gid;
  	__u32 i_size;
  	__u32 i_atime;
  	__u32 i_mtime;
  	__u32 i_ctime;
  	__u32 i_zone[10];
  };
  
  /*
   * minix super-block data on disk
   */
  struct minix_super_block {
  	__u16 s_ninodes;
  	__u16 s_nzones;
  	__u16 s_imap_blocks;
  	__u16 s_zmap_blocks;
  	__u16 s_firstdatazone;
  	__u16 s_log_zone_size;
  	__u32 s_max_size;
  	__u16 s_magic;
  	__u16 s_state;
  	__u32 s_zones;
  };

  /*
   * V3 minix super-block data on disk
   */
  struct minix3_super_block {

  	__u32 s_ninodes;

  	__u16 s_pad0;
  	__u16 s_imap_blocks;
  	__u16 s_zmap_blocks;
  	__u16 s_firstdatazone;
  	__u16 s_log_zone_size;
  	__u16 s_pad1;
  	__u32 s_max_size;
  	__u32 s_zones;
  	__u16 s_magic;
  	__u16 s_pad2;
  	__u16 s_blocksize;
  	__u8  s_disk_version;
  };

  struct minix_dir_entry {
  	__u16 inode;
  	char name[0];
  };

  struct minix3_dir_entry {
  	__u32 inode;
  	char name[0];
  };

  #endif