Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #include <linux/fs.h> |
2 | #include <linux/pagemap.h> | |
3 | #include <linux/minix_fs.h> | |
4 | ||
1da177e4 | 5 | #define INODE_VERSION(inode) minix_sb(inode->i_sb)->s_version |
1da177e4 LT |
6 | #define MINIX_V1 0x0001 /* original minix fs */ |
7 | #define MINIX_V2 0x0002 /* minix V2 fs */ | |
939b00df | 8 | #define MINIX_V3 0x0003 /* minix V3 fs */ |
1da177e4 LT |
9 | |
10 | /* | |
11 | * minix fs inode data in memory | |
12 | */ | |
13 | struct minix_inode_info { | |
14 | union { | |
15 | __u16 i1_data[16]; | |
16 | __u32 i2_data[16]; | |
17 | } u; | |
18 | struct inode vfs_inode; | |
19 | }; | |
20 | ||
21 | /* | |
22 | * minix super-block data in memory | |
23 | */ | |
24 | struct minix_sb_info { | |
25 | unsigned long s_ninodes; | |
26 | unsigned long s_nzones; | |
27 | unsigned long s_imap_blocks; | |
28 | unsigned long s_zmap_blocks; | |
29 | unsigned long s_firstdatazone; | |
30 | unsigned long s_log_zone_size; | |
31 | unsigned long s_max_size; | |
32 | int s_dirsize; | |
33 | int s_namelen; | |
34 | int s_link_max; | |
35 | struct buffer_head ** s_imap; | |
36 | struct buffer_head ** s_zmap; | |
37 | struct buffer_head * s_sbh; | |
38 | struct minix_super_block * s_ms; | |
39 | unsigned short s_mount_state; | |
40 | unsigned short s_version; | |
41 | }; | |
42 | ||
a90a0880 | 43 | extern struct inode *minix_iget(struct super_block *, unsigned long); |
1da177e4 LT |
44 | extern struct minix_inode * minix_V1_raw_inode(struct super_block *, ino_t, struct buffer_head **); |
45 | extern struct minix2_inode * minix_V2_raw_inode(struct super_block *, ino_t, struct buffer_head **); | |
46 | extern struct inode * minix_new_inode(const struct inode * dir, int * error); | |
47 | extern void minix_free_inode(struct inode * inode); | |
48 | extern unsigned long minix_count_free_inodes(struct minix_sb_info *sbi); | |
49 | extern int minix_new_block(struct inode * inode); | |
939b00df | 50 | extern void minix_free_block(struct inode *inode, unsigned long block); |
1da177e4 | 51 | extern unsigned long minix_count_free_blocks(struct minix_sb_info *sbi); |
1da177e4 | 52 | extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
4a66af9e NP |
53 | extern int __minix_write_begin(struct file *file, struct address_space *mapping, |
54 | loff_t pos, unsigned len, unsigned flags, | |
55 | struct page **pagep, void **fsdata); | |
1da177e4 | 56 | |
1da177e4 LT |
57 | extern void V1_minix_truncate(struct inode *); |
58 | extern void V2_minix_truncate(struct inode *); | |
59 | extern void minix_truncate(struct inode *); | |
60 | extern int minix_sync_inode(struct inode *); | |
61 | extern void minix_set_inode(struct inode *, dev_t); | |
62 | extern int V1_minix_get_block(struct inode *, long, struct buffer_head *, int); | |
63 | extern int V2_minix_get_block(struct inode *, long, struct buffer_head *, int); | |
939b00df AB |
64 | extern unsigned V1_minix_blocks(loff_t, struct super_block *); |
65 | extern unsigned V2_minix_blocks(loff_t, struct super_block *); | |
1da177e4 LT |
66 | |
67 | extern struct minix_dir_entry *minix_find_entry(struct dentry*, struct page**); | |
68 | extern int minix_add_link(struct dentry*, struct inode*); | |
69 | extern int minix_delete_entry(struct minix_dir_entry*, struct page*); | |
70 | extern int minix_make_empty(struct inode*, struct inode*); | |
71 | extern int minix_empty_dir(struct inode*); | |
72 | extern void minix_set_link(struct minix_dir_entry*, struct page*, struct inode*); | |
73 | extern struct minix_dir_entry *minix_dotdot(struct inode*, struct page**); | |
74 | extern ino_t minix_inode_by_name(struct dentry*); | |
1da177e4 LT |
75 | extern int minix_sync_file(struct file *, struct dentry *, int); |
76 | ||
92e1d5be AV |
77 | extern const struct inode_operations minix_file_inode_operations; |
78 | extern const struct inode_operations minix_dir_inode_operations; | |
4b6f5d20 AV |
79 | extern const struct file_operations minix_file_operations; |
80 | extern const struct file_operations minix_dir_operations; | |
1da177e4 LT |
81 | |
82 | static inline struct minix_sb_info *minix_sb(struct super_block *sb) | |
83 | { | |
84 | return sb->s_fs_info; | |
85 | } | |
86 | ||
87 | static inline struct minix_inode_info *minix_i(struct inode *inode) | |
88 | { | |
89 | return list_entry(inode, struct minix_inode_info, vfs_inode); | |
90 | } |