1 #ifndef _LINUX_MINIX_FS_H
2 #define _LINUX_MINIX_FS_H
4 #include <linux/types.h>
5 #include <linux/magic.h>
8 * The minix filesystem constants/structures
12 * Thanks to Kees J Bot for sending me the definitions of the new
13 * minix filesystem (aka V2) with bigger inodes and 32-bit block
17 #define MINIX_ROOT_INO 1
19 /* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */
20 #define MINIX_LINK_MAX 250
21 #define MINIX2_LINK_MAX 65530
23 #define MINIX_I_MAP_SLOTS 8
24 #define MINIX_Z_MAP_SLOTS 64
25 #define MINIX_VALID_FS 0x0001 /* Clean fs. */
26 #define MINIX_ERROR_FS 0x0002 /* fs has errors. */
28 #define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
31 * This is the original minix inode layout on disk.
32 * Note the 8-bit gid and atime and ctime.
45 * The new minix inode has all the time entries, as well as
46 * long block numbers and a third indirect block (7+1+1+1
47 * instead of 7+1+1). Also, some previously 8-bit values are
48 * now 16-bit. The inode is now 64 bytes instead of 32.
63 * minix super-block data on disk
65 struct minix_super_block
{
70 __u16 s_firstdatazone
;
71 __u16 s_log_zone_size
;
79 * V3 minix super-block data on disk
81 struct minix3_super_block
{
86 __u16 s_firstdatazone
;
87 __u16 s_log_zone_size
;
97 struct minix_dir_entry
{
102 struct minix3_dir_entry
{
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