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

[Peter Hurley]

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


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