Messages in this thread | | | Date | Thu, 05 Mar 2015 09:32:25 -0500 | From | Peter Hurley <> | Subject | Re: [PATCH 5/5] TTY: fix tty_wait_until_sent maximum timeout |
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On 03/04/2015 04:39 AM, Johan Hovold wrote: > Currently tty_wait_until_sent may take up to twice as long as the > requested timeout while waiting for driver and hardware buffers to > drain. > > Fix this by taking the remaining number of jiffies after waiting for > driver buffers to drain into account so that the timeout actually > becomes a maximum timeout as it is documented to be. > > Note that this specifically implies tighter timings when closing a port > as a consequence of actually honouring the port closing-wait setting > for drivers relying on tty_wait_until_sent_from_close (e.g. via > tty_port_close_start).
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
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