Re: [PATCH] tty: Correct tty buffer flushing.

From: Ilya Zykov
Date: Tue Dec 04 2012 - 05:11:36 EST


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.

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