__generic_copy_to_user(void *to, const void *from, unsigned long n)
__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
__generic_copy_to_user(void *to, const void *from, unsigned long n){	prefetch(from);	if (access_ok(VERIFY_WRITE, to, n))		__copy_user(to,from,n);	return n;}