97 строки
3.3 KiB
C
97 строки
3.3 KiB
C
|
#include <linux/fs.h>
|
||
|
|
#include <linux/pagemap.h>
|
||
|
|
#include <linux/minix_fs.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* change the define below to 0 if you want names > info->s_namelen chars to be
|
||
|
|
* truncated. Else they will be disallowed (ENAMETOOLONG).
|
||
|
|
*/
|
||
|
|
#define NO_TRUNCATE 1
|
||
|
|
|
||
|
|
#define INODE_VERSION(inode) minix_sb(inode->i_sb)->s_version
|
||
|
|
|
||
|
|
#define MINIX_V1 0x0001 /* original minix fs */
|
||
|
|
#define MINIX_V2 0x0002 /* minix V2 fs */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* minix fs inode data in memory
|
||
|
|
*/
|
||
|
|
struct minix_inode_info {
|
||
|
|
union {
|
||
|
|
__u16 i1_data[16];
|
||
|
|
__u32 i2_data[16];
|
||
|
|
} u;
|
||
|
|
struct inode vfs_inode;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* minix super-block data in memory
|
||
|
|
*/
|
||
|
|
struct minix_sb_info {
|
||
|
|
unsigned long s_ninodes;
|
||
|
|
unsigned long s_nzones;
|
||
|
|
unsigned long s_imap_blocks;
|
||
|
|
unsigned long s_zmap_blocks;
|
||
|
|
unsigned long s_firstdatazone;
|
||
|
|
unsigned long s_log_zone_size;
|
||
|
|
unsigned long s_max_size;
|
||
|
|
int s_dirsize;
|
||
|
|
int s_namelen;
|
||
|
|
int s_link_max;
|
||
|
|
struct buffer_head ** s_imap;
|
||
|
|
struct buffer_head ** s_zmap;
|
||
|
|
struct buffer_head * s_sbh;
|
||
|
|
struct minix_super_block * s_ms;
|
||
|
|
unsigned short s_mount_state;
|
||
|
|
unsigned short s_version;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern struct minix_inode * minix_V1_raw_inode(struct super_block *, ino_t, struct buffer_head **);
|
||
|
|
extern struct minix2_inode * minix_V2_raw_inode(struct super_block *, ino_t, struct buffer_head **);
|
||
|
|
extern struct inode * minix_new_inode(const struct inode * dir, int * error);
|
||
|
|
extern void minix_free_inode(struct inode * inode);
|
||
|
|
extern unsigned long minix_count_free_inodes(struct minix_sb_info *sbi);
|
||
|
|
extern int minix_new_block(struct inode * inode);
|
||
|
|
extern void minix_free_block(struct inode * inode, int block);
|
||
|
|
extern unsigned long minix_count_free_blocks(struct minix_sb_info *sbi);
|
||
|
|
|
||
|
|
extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *);
|
||
|
|
|
||
|
|
extern void V2_minix_truncate(struct inode *);
|
||
|
|
extern void V1_minix_truncate(struct inode *);
|
||
|
|
extern void V2_minix_truncate(struct inode *);
|
||
|
|
extern void minix_truncate(struct inode *);
|
||
|
|
extern int minix_sync_inode(struct inode *);
|
||
|
|
extern void minix_set_inode(struct inode *, dev_t);
|
||
|
|
extern int V1_minix_get_block(struct inode *, long, struct buffer_head *, int);
|
||
|
|
extern int V2_minix_get_block(struct inode *, long, struct buffer_head *, int);
|
||
|
|
extern unsigned V1_minix_blocks(loff_t);
|
||
|
|
extern unsigned V2_minix_blocks(loff_t);
|
||
|
|
|
||
|
|
extern struct minix_dir_entry *minix_find_entry(struct dentry*, struct page**);
|
||
|
|
extern int minix_add_link(struct dentry*, struct inode*);
|
||
|
|
extern int minix_delete_entry(struct minix_dir_entry*, struct page*);
|
||
|
|
extern int minix_make_empty(struct inode*, struct inode*);
|
||
|
|
extern int minix_empty_dir(struct inode*);
|
||
|
|
extern void minix_set_link(struct minix_dir_entry*, struct page*, struct inode*);
|
||
|
|
extern struct minix_dir_entry *minix_dotdot(struct inode*, struct page**);
|
||
|
|
extern ino_t minix_inode_by_name(struct dentry*);
|
||
|
|
|
||
|
|
extern int minix_sync_file(struct file *, struct dentry *, int);
|
||
|
|
|
||
|
|
extern struct inode_operations minix_file_inode_operations;
|
||
|
|
extern struct inode_operations minix_dir_inode_operations;
|
||
|
|
extern struct file_operations minix_file_operations;
|
||
|
|
extern struct file_operations minix_dir_operations;
|
||
|
|
extern struct dentry_operations minix_dentry_operations;
|
||
|
|
|
||
|
|
static inline struct minix_sb_info *minix_sb(struct super_block *sb)
|
||
|
|
{
|
||
|
|
return sb->s_fs_info;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct minix_inode_info *minix_i(struct inode *inode)
|
||
|
|
{
|
||
|
|
return list_entry(inode, struct minix_inode_info, vfs_inode);
|
||
|
|
}
|