Commit | Line | Data |
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1da177e4 LT |
1 | #include <linux/fs.h> |
2 | #include <linux/pagemap.h> | |
3 | #include <linux/minix_fs.h> | |
4 | ||
5 | /* | |
6 | * change the define below to 0 if you want names > info->s_namelen chars to be | |
7 | * truncated. Else they will be disallowed (ENAMETOOLONG). | |
8 | */ | |
9 | #define NO_TRUNCATE 1 | |
1da177e4 | 10 | #define INODE_VERSION(inode) minix_sb(inode->i_sb)->s_version |
1da177e4 LT |
11 | #define MINIX_V1 0x0001 /* original minix fs */ |
12 | #define MINIX_V2 0x0002 /* minix V2 fs */ | |
939b00df | 13 | #define MINIX_V3 0x0003 /* minix V3 fs */ |
1da177e4 LT |
14 | |
15 | /* | |
16 | * minix fs inode data in memory | |
17 | */ | |
18 | struct minix_inode_info { | |
19 | union { | |
20 | __u16 i1_data[16]; | |
21 | __u32 i2_data[16]; | |
22 | } u; | |
23 | struct inode vfs_inode; | |
24 | }; | |
25 | ||
26 | /* | |
27 | * minix super-block data in memory | |
28 | */ | |
29 | struct minix_sb_info { | |
30 | unsigned long s_ninodes; | |
31 | unsigned long s_nzones; | |
32 | unsigned long s_imap_blocks; | |
33 | unsigned long s_zmap_blocks; | |
34 | unsigned long s_firstdatazone; | |
35 | unsigned long s_log_zone_size; | |
36 | unsigned long s_max_size; | |
37 | int s_dirsize; | |
38 | int s_namelen; | |
39 | int s_link_max; | |
40 | struct buffer_head ** s_imap; | |
41 | struct buffer_head ** s_zmap; | |
42 | struct buffer_head * s_sbh; | |
43 | struct minix_super_block * s_ms; | |
44 | unsigned short s_mount_state; | |
45 | unsigned short s_version; | |
46 | }; | |
47 | ||
48 | extern struct minix_inode * minix_V1_raw_inode(struct super_block *, ino_t, struct buffer_head **); | |
49 | extern struct minix2_inode * minix_V2_raw_inode(struct super_block *, ino_t, struct buffer_head **); | |
50 | extern struct inode * minix_new_inode(const struct inode * dir, int * error); | |
51 | extern void minix_free_inode(struct inode * inode); | |
52 | extern unsigned long minix_count_free_inodes(struct minix_sb_info *sbi); | |
53 | extern int minix_new_block(struct inode * inode); | |
939b00df | 54 | extern void minix_free_block(struct inode *inode, unsigned long block); |
1da177e4 | 55 | extern unsigned long minix_count_free_blocks(struct minix_sb_info *sbi); |
1da177e4 | 56 | extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
4a66af9e NP |
57 | extern int __minix_write_begin(struct file *file, struct address_space *mapping, |
58 | loff_t pos, unsigned len, unsigned flags, | |
59 | struct page **pagep, void **fsdata); | |
1da177e4 | 60 | |
1da177e4 LT |
61 | extern void V1_minix_truncate(struct inode *); |
62 | extern void V2_minix_truncate(struct inode *); | |
63 | extern void minix_truncate(struct inode *); | |
64 | extern int minix_sync_inode(struct inode *); | |
65 | extern void minix_set_inode(struct inode *, dev_t); | |
66 | extern int V1_minix_get_block(struct inode *, long, struct buffer_head *, int); | |
67 | extern int V2_minix_get_block(struct inode *, long, struct buffer_head *, int); | |
939b00df AB |
68 | extern unsigned V1_minix_blocks(loff_t, struct super_block *); |
69 | extern unsigned V2_minix_blocks(loff_t, struct super_block *); | |
1da177e4 LT |
70 | |
71 | extern struct minix_dir_entry *minix_find_entry(struct dentry*, struct page**); | |
72 | extern int minix_add_link(struct dentry*, struct inode*); | |
73 | extern int minix_delete_entry(struct minix_dir_entry*, struct page*); | |
74 | extern int minix_make_empty(struct inode*, struct inode*); | |
75 | extern int minix_empty_dir(struct inode*); | |
76 | extern void minix_set_link(struct minix_dir_entry*, struct page*, struct inode*); | |
77 | extern struct minix_dir_entry *minix_dotdot(struct inode*, struct page**); | |
78 | extern ino_t minix_inode_by_name(struct dentry*); | |
1da177e4 LT |
79 | extern int minix_sync_file(struct file *, struct dentry *, int); |
80 | ||
92e1d5be AV |
81 | extern const struct inode_operations minix_file_inode_operations; |
82 | extern const struct inode_operations minix_dir_inode_operations; | |
4b6f5d20 AV |
83 | extern const struct file_operations minix_file_operations; |
84 | extern const struct file_operations minix_dir_operations; | |
1da177e4 LT |
85 | extern struct dentry_operations minix_dentry_operations; |
86 | ||
87 | static inline struct minix_sb_info *minix_sb(struct super_block *sb) | |
88 | { | |
89 | return sb->s_fs_info; | |
90 | } | |
91 | ||
92 | static inline struct minix_inode_info *minix_i(struct inode *inode) | |
93 | { | |
94 | return list_entry(inode, struct minix_inode_info, vfs_inode); | |
95 | } |