extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
int (*open)(struct inode *, struct file *));
+extern struct dentry *lookup_hash(struct nameidata *nd);
+extern int __lookup_one_len(const char *name, struct qstr *this,
+ struct dentry *base, int len);
extern struct dentry *lookup_one_len(const char *, struct dentry *, int);
extern int follow_down_one(struct path *);