1 #ifndef _LINUX_MINIX_FS_H
2 #define _LINUX_MINIX_FS_H
5 * The minix filesystem constants/structures
9 * Thanks to Kees J Bot for sending me the definitions of the new
10 * minix filesystem (aka V2) with bigger inodes and 32-bit block
14 #define MINIX_ROOT_INO 1
16 /* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */
17 #define MINIX_LINK_MAX 250
18 #define MINIX2_LINK_MAX 65530
20 #define MINIX_I_MAP_SLOTS 8
21 #define MINIX_Z_MAP_SLOTS 64
22 #define MINIX_SUPER_MAGIC 0x137F /* original minix fs */
23 #define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 30 char names */
24 #define MINIX2_SUPER_MAGIC 0x2468 /* minix V2 fs */
25 #define MINIX2_SUPER_MAGIC2 0x2478 /* minix V2 fs, 30 char names */
26 #define MINIX_VALID_FS 0x0001 /* Clean fs. */
27 #define MINIX_ERROR_FS 0x0002 /* fs has errors. */
29 #define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
30 #define MINIX2_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix2_inode)))
33 * This is the original minix inode layout on disk.
34 * Note the 8-bit gid and atime and ctime.
47 * The new minix inode has all the time entries, as well as
48 * long block numbers and a third indirect block (7+1+1+1
49 * instead of 7+1+1). Also, some previously 8-bit values are
50 * now 16-bit. The inode is now 64 bytes instead of 32.
65 * minix super-block data on disk
67 struct minix_super_block {
72 __u16 s_firstdatazone;
73 __u16 s_log_zone_size;
80 struct minix_dir_entry {