I wonder if it would be possible to pass the ownership of a structure that contains the buffer to kernel, passing a pointer in the user_data. The application co

I wonder if it would be possible to pass the ownership of a structure that contains the buffer to kernel, passing a pointer in the user_data. The application could then `std::mem::forget` the buffer, and re-construct it from the raw pointer when the completion event arrives. The Future that originated the IO job could then be dropped independently from the buffer.