2 #include <linux/pagemap.h>
3 #include <linux/minix_fs.h>
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).
10 #define INODE_VERSION(inode) minix_sb(inode->i_sb)->s_version
11 #define MINIX_V1 0x0001 /* original minix fs */
12 #define MINIX_V2 0x0002 /* minix V2 fs */
13 #define MINIX_V3 0x0003 /* minix V3 fs */
16 * minix fs inode data in memory
18 struct minix_inode_info {
23 struct inode vfs_inode;
27 * minix super-block data in memory
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;
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;
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);
54 extern void minix_free_block(struct inode *inode, unsigned long block);
55 extern unsigned long minix_count_free_blocks(struct minix_sb_info *sbi);
56 extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *);
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);
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);
68 extern unsigned V1_minix_blocks(loff_t, struct super_block *);
69 extern unsigned V2_minix_blocks(loff_t, struct super_block *);
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*);
79 extern int minix_sync_file(struct file *, struct dentry *, int);
81 extern const struct inode_operations minix_file_inode_operations;
82 extern const struct inode_operations minix_dir_inode_operations;
83 extern const struct file_operations minix_file_operations;
84 extern const struct file_operations minix_dir_operations;
85 extern struct dentry_operations minix_dentry_operations;
87 static inline struct minix_sb_info *minix_sb(struct super_block *sb)
92 static inline struct minix_inode_info *minix_i(struct inode *inode)
94 return list_entry(inode, struct minix_inode_info, vfs_inode);