projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | |
| 10 | ||
| 11 | #define INODE_VERSION(inode) minix_sb(inode->i_sb)->s_version | |
| 12 | ||
| 13 | #define MINIX_V1 0x0001 /* original minix fs */ | |
| 14 | #define MINIX_V2 0x0002 /* minix V2 fs */ | |
| 15 | ||
| 16 | /* | |
| 17 | * minix fs inode data in memory | |
| 18 | */ | |
| 19 | struct minix_inode_info { | |
| 20 | union { | |
| 21 | __u16 i1_data[16]; | |
| 22 | __u32 i2_data[16]; | |
| 23 | } u; | |
| 24 | struct inode vfs_inode; | |
| 25 | }; | |
| 26 | ||
| 27 | /* | |
| 28 | * minix super-block data in memory | |
| 29 | */ | |
| 30 | struct minix_sb_info { | |
| 31 | unsigned long s_ninodes; | |
| 32 | unsigned long s_nzones; | |
| 33 | unsigned long s_imap_blocks; | |
| 34 | unsigned long s_zmap_blocks; | |
| 35 | unsigned long s_firstdatazone; | |
| 36 | unsigned long s_log_zone_size; | |
| 37 | unsigned long s_max_size; | |
| 38 | int s_dirsize; | |
| 39 | int s_namelen; | |
| 40 | int s_link_max; | |
| 41 | struct buffer_head ** s_imap; | |
| 42 | struct buffer_head ** s_zmap; | |
| 43 | struct buffer_head * s_sbh; | |
| 44 | struct minix_super_block * s_ms; | |
| 45 | unsigned short s_mount_state; | |
| 46 | unsigned short s_version; | |
| 47 | }; | |
| 48 | ||
| 49 | extern struct minix_inode * minix_V1_raw_inode(struct super_block *, ino_t, struct buffer_head **); | |
| 50 | extern struct minix2_inode * minix_V2_raw_inode(struct super_block *, ino_t, struct buffer_head **); | |
| 51 | extern struct inode * minix_new_inode(const struct inode * dir, int * error); | |
| 52 | extern void minix_free_inode(struct inode * inode); | |
| 53 | extern unsigned long minix_count_free_inodes(struct minix_sb_info *sbi); | |
| 54 | extern int minix_new_block(struct inode * inode); | |
| 55 | extern void minix_free_block(struct inode * inode, int block); | |
| 56 | extern unsigned long minix_count_free_blocks(struct minix_sb_info *sbi); | |
| 57 | ||
| 58 | extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *); | |
| 59 | ||
| 60 | extern void V2_minix_truncate(struct inode *); | |
| 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); | |
| 69 | extern unsigned V2_minix_blocks(loff_t); | |
| 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*); | |
| 79 | ||
| 80 | extern int minix_sync_file(struct file *, struct dentry *, int); | |
| 81 | ||
| 82 | extern struct inode_operations minix_file_inode_operations; | |
| 83 | extern struct inode_operations minix_dir_inode_operations; | |
| 84 | extern struct file_operations minix_file_operations; | |
| 85 | extern struct file_operations minix_dir_operations; | |
| 86 | extern struct dentry_operations minix_dentry_operations; | |
| 87 | ||
| 88 | static inline struct minix_sb_info *minix_sb(struct super_block *sb) | |
| 89 | { | |
| 90 | return sb->s_fs_info; | |
| 91 | } | |
| 92 | ||
| 93 | static inline struct minix_inode_info *minix_i(struct inode *inode) | |
| 94 | { | |
| 95 | return list_entry(inode, struct minix_inode_info, vfs_inode); | |
| 96 | } |