296 extern int __copy_tofrom_user(void *to, const void *from, unsigned long len);
299 copy_from_user(void *to, const void *from, unsigned long len)  in copy_from_user()  argument
303 	if (access_ok(VERIFY_READ, from, len))  in copy_from_user()
304 		return __copy_tofrom_user(to, from, len);  in copy_from_user()
306 	if ((unsigned long)from < TASK_SIZE) {  in copy_from_user()
307 		over = (unsigned long)from + len - TASK_SIZE;  in copy_from_user()
308 		return __copy_tofrom_user(to, from, len - over) + over;  in copy_from_user()
314 copy_to_user(void *to, const void *from, unsigned long len)  in copy_to_user()  argument
319 		return __copy_tofrom_user(to, from, len);  in copy_to_user()
323 		return __copy_tofrom_user(to, from, len - over) + over;  in copy_to_user()
328 #define __copy_from_user(to, from, len)	\  argument
329 		__copy_tofrom_user((to), (from), (len))
331 #define __copy_to_user(to, from, len)		\  argument
332 		__copy_tofrom_user((to), (from), (len))
335 __copy_to_user_inatomic(void *to, const void *from, unsigned long len)  in __copy_to_user_inatomic()  argument
337 	return __copy_to_user(to, from, len);  in __copy_to_user_inatomic()
341 __copy_from_user_inatomic(void *to, const void *from, unsigned long len)  in __copy_from_user_inatomic()  argument
343 	return __copy_from_user(to, from, len);  in __copy_from_user_inatomic()
346 #define __copy_in_user(to, from, len)	__copy_from_user(to, from, len)  argument
349 copy_in_user(void *to, const void *from, unsigned long len)  in copy_in_user()  argument
351 	if (access_ok(VERIFY_READ, from, len) &&  in copy_in_user()
353 		return copy_from_user(to, from, len);  in copy_in_user()