On 04.12.2012 12:53, Alan Cox wrote: >> 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. > > This one I agree with (sorry it took a while to get to, I wanted to sit > and think carefully about it as it is subtle and clever) > > Can you generate a single patch which reverts the unneeded locks and > adds this instead. Add a Signed-off-by and send it to Greg to get it > into 3.8/3.9 somewhere. > > Thanks > > Alan > OK. Thank you. -- 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
