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Date: Thu, 13 Aug 2009 13:35:50 +0200
Message-ID: <520f0cf10908130435t2aba0d23mb1465daef3a4a997@mail.gmail.com>
Subject: Re: [PATCH][RT] pty low latency
From: John Kacur <jkacur@gmail.com>
To: Sven-Thorsten Dietrich <sdietrich@novell.com>
Cc: linux-rt-users <linux-rt-users@vger.kernel.org>,
       LKML <linux-kernel@vger.kernel.org>
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On Thu, Aug 13, 2009 at 6:42 AM, Sven-Thorsten
Dietrich<sdietrich@novell.com> wrote:
>
> Subject: add hunks dropped in rt 2.6.31-rc5-rt1.1 forward port
> From: patch-2.6.31-rc4-rt1
> Signed-off-by: Sven-Thorsten Dietrich <sdietrich@suse.de>
> --- a/drivers/char/pty.c
> +++ b/drivers/char/pty.c
> @@ -52,6 +52,7 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
>                return;
>        tty->link->packet = 0;
>        set_bit(TTY_OTHER_CLOSED, &tty->link->flags);
> +       tty_flip_buffer_push(tty->link);
>        wake_up_interruptible(&tty->link->read_wait);
>        wake_up_interruptible(&tty->link->write_wait);
>        if (tty->driver->subtype == PTY_TYPE_MASTER) {
> @@ -207,6 +208,7 @@ static int pty_open(struct tty_struct *tty, struct file *filp)
>        clear_bit(TTY_OTHER_CLOSED, &tty->link->flags);
>        set_bit(TTY_THROTTLED, &tty->flags);
>        retval = 0;
> +       tty->low_latency = 1;
>  out:
>        return retval;
>  }
>

Thank You - I applied this.