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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _LINUX_MINIX_FS_H3#define _LINUX_MINIX_FS_H4 5#include <linux/types.h>6#include <linux/magic.h>7 8/*9 * The minix filesystem constants/structures10 */11 12/*13 * Thanks to Kees J Bot for sending me the definitions of the new14 * minix filesystem (aka V2) with bigger inodes and 32-bit block15 * pointers.16 */17 18#define MINIX_ROOT_INO 119 20/* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */21#define MINIX_LINK_MAX 25022#define MINIX2_LINK_MAX 6553023 24#define MINIX_I_MAP_SLOTS 825#define MINIX_Z_MAP_SLOTS 6426#define MINIX_VALID_FS 0x0001 /* Clean fs. */27#define MINIX_ERROR_FS 0x0002 /* fs has errors. */28 29#define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))30 31/*32 * This is the original minix inode layout on disk.33 * Note the 8-bit gid and atime and ctime.34 */35struct minix_inode {36 __u16 i_mode;37 __u16 i_uid;38 __u32 i_size;39 __u32 i_time;40 __u8 i_gid;41 __u8 i_nlinks;42 __u16 i_zone[9];43};44 45/*46 * The new minix inode has all the time entries, as well as47 * long block numbers and a third indirect block (7+1+1+148 * instead of 7+1+1). Also, some previously 8-bit values are49 * now 16-bit. The inode is now 64 bytes instead of 32.50 */51struct minix2_inode {52 __u16 i_mode;53 __u16 i_nlinks;54 __u16 i_uid;55 __u16 i_gid;56 __u32 i_size;57 __u32 i_atime;58 __u32 i_mtime;59 __u32 i_ctime;60 __u32 i_zone[10];61};62 63/*64 * minix super-block data on disk65 */66struct minix_super_block {67 __u16 s_ninodes;68 __u16 s_nzones;69 __u16 s_imap_blocks;70 __u16 s_zmap_blocks;71 __u16 s_firstdatazone;72 __u16 s_log_zone_size;73 __u32 s_max_size;74 __u16 s_magic;75 __u16 s_state;76 __u32 s_zones;77};78 79/*80 * V3 minix super-block data on disk81 */82struct minix3_super_block {83 __u32 s_ninodes;84 __u16 s_pad0;85 __u16 s_imap_blocks;86 __u16 s_zmap_blocks;87 __u16 s_firstdatazone;88 __u16 s_log_zone_size;89 __u16 s_pad1;90 __u32 s_max_size;91 __u32 s_zones;92 __u16 s_magic;93 __u16 s_pad2;94 __u16 s_blocksize;95 __u8 s_disk_version;96};97 98struct minix_dir_entry {99 __u16 inode;100 char name[];101};102 103struct minix3_dir_entry {104 __u32 inode;105 char name[];106};107#endif108