On Thu, 2012-11-29 at 21:28 +0000, Alan Cox wrote: > > Sorry, In you reply not all patch. > > Main idea here - we never flash last (struct tty_buffer) in the > > active buffer. Only data for ldisc. (tty->buf.head->read = > > tty->buf.head->commit). At that moment driver can collect(write) data > > in buffer without conflict. > > Ah.. now I understand. Yes that makes sense. I will think about that > carefully. This is why a good explanation with a patch is important. FWIW, I've been running this on -next. The logic seems sound to me -- fundamentally, this technique is what flush_to_ldisc() does. Regards, Peter Hurley -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
