291 extern int __copy_tofrom_user(void *to, const void *from, unsigned long len);
294 copy_from_user(void *to, const void *from, unsigned long len)  in copy_from_user()  argument
298 	if (access_ok(VERIFY_READ, from, len))  in copy_from_user()
299 		return __copy_tofrom_user(to, from, len);  in copy_from_user()
302 		over = (unsigned long)from + len - TASK_SIZE;  in copy_from_user()
303 		return __copy_tofrom_user(to, from, len - over) + over;  in copy_from_user()
305 	return len;  in copy_from_user()
309 copy_to_user(void *to, const void *from, unsigned long len)  in copy_to_user()  argument
313 	if (access_ok(VERIFY_WRITE, to, len))  in copy_to_user()
314 		return __copy_tofrom_user(to, from, len);  in copy_to_user()
317 		over = (unsigned long)to + len - TASK_SIZE;  in copy_to_user()
318 		return __copy_tofrom_user(to, from, len - over) + over;  in copy_to_user()
320 	return len;  in copy_to_user()
323 #define __copy_from_user(to, from, len)	\  argument
324 		__copy_tofrom_user((to), (from), (len))
326 #define __copy_to_user(to, from, len)		\  argument
327 		__copy_tofrom_user((to), (from), (len))
330 __copy_to_user_inatomic(void *to, const void *from, unsigned long len)  in __copy_to_user_inatomic()  argument
332 	return __copy_to_user(to, from, len);  in __copy_to_user_inatomic()
336 __copy_from_user_inatomic(void *to, const void *from, unsigned long len)  in __copy_from_user_inatomic()  argument
338 	return __copy_from_user(to, from, len);  in __copy_from_user_inatomic()
341 #define __copy_in_user(to, from, len)	__copy_from_user(to, from, len)  argument
344 copy_in_user(void *to, const void *from, unsigned long len)  in copy_in_user()  argument
346 	if (access_ok(VERIFY_READ, from, len) &&  in copy_in_user()
347 		      access_ok(VERFITY_WRITE, to, len))  in copy_in_user()
348 		return copy_from_user(to, from, len);  in copy_in_user()
391 extern int __strncpy_from_user(char *dst, const char *src, long len);
393 static inline int strncpy_from_user(char *dst, const char *src, long len)  in strncpy_from_user()  argument
396 		return __strncpy_from_user(dst, src, len);  in strncpy_from_user()
407 extern int __strnlen_user(const char *str, long len);
408 static inline long strnlen_user(const char __user *str, long len)  in strnlen_user()  argument
413 		return __strnlen_user(str, len);  in strnlen_user()