Documentation/filesystems/Locking: fix ->get_link() prototype

	int (*rename) (struct inode *, struct dentry *,

			struct inode *, struct dentry *, unsigned int);

	int (*readlink) (struct dentry *, char __user *,int);

	const char *(*get_link) (struct dentry *, struct inode *, void **);

	const char *(*get_link) (struct dentry *, struct inode *, struct delayed_call *);

	void (*truncate) (struct inode *);

	int (*permission) (struct inode *, int, unsigned int);

	int (*get_acl)(struct inode *, int);