__copy_to_user_inatomic
res = __copy_to_user_inatomic(addr, fpr, sizeof(*fpr));
ret = __copy_to_user_inatomic((void __user *)to, from, n);
unwritten = __copy_to_user_inatomic(user_data,
unused = __copy_to_user_inatomic(usermem, kmem, size + 1));
ret = __copy_to_user_inatomic(dst, src, size);