| #ifndef _LINUX_MINIX_FS_H |
| #define _LINUX_MINIX_FS_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 { |
| __u16 s_ninodes; |
| __u16 s_nzones; |
| __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 |