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SubjectRe: [PATCH] n_tty: Unthrottle tty when flushing read buffer
On 24.01.2013 2:36, Karthik Manamcheri wrote:
> When the tty input buffer is full and thereby throttled,
> flushing/resetting the read buffer should unthrottle to allow more
> data to be received.
>
> Signed-off-by: Karthik Manamcheri <Karthik.Manamcheri@ni.com>
> ---
> drivers/tty/n_tty.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
> index 19083efa2314660b25e0fb5bc793af6fb7e9af57..d5cea3bb01eaeec61b577de6c58a8000412c0c37 100644
> --- a/drivers/tty/n_tty.c
> +++ b/drivers/tty/n_tty.c
> @@ -229,6 +229,8 @@ static void reset_buffer_flags(struct tty_struct *tty)
> ldata->canon_head = ldata->canon_data = ldata->erasing = 0;
> bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
> n_tty_set_room(tty);
> +
> + check_unthrottle(tty);
> }
>
> /**
>

It's revert - tty: fix "IRQ45: nobody cared".
commit 7b292b4bf9a9d6098440d85616d6ca4c608b8304

Please, read these for this subject:
https://lkml.org/lkml/2012/11/27/440
https://lkml.org/lkml/2012/11/21/568

https://lkml.org/lkml/2012/11/22/686

It's already fixed in the:
commit a1bf9584429d61b7096f93ae09325e1ba538e9e8
tty: Add driver unthrottle in ioctl(...,TCFLSH,..).



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