From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753900Ab1LUQbN (ORCPT ); Wed, 21 Dec 2011 11:31:13 -0500 Received: from merlin.infradead.org ([205.233.59.134]:33539 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753876Ab1LUQbK convert rfc822-to-8bit (ORCPT ); Wed, 21 Dec 2011 11:31:10 -0500 Message-ID: <1324485047.10752.20.camel@twins> Subject: Re: [RFC][PATCH 7/7] serial, 8250: Mostly avoid wakeups from under port->lock From: Peter Zijlstra To: Alan Cox Cc: Linus Torvalds , "Ted Ts'o" , Greg KH , Ingo Molnar , Thomas Gleixner , akpm@linux-foundation.org, linux-kernel Date: Wed, 21 Dec 2011 17:30:47 +0100 In-Reply-To: <1324484554.10752.16.camel@twins> References: <20111221105739.798864333@chello.nl> <20111221111143.678537446@chello.nl> <20111221160323.1084e954@pyramind.ukuu.org.uk> <1324484554.10752.16.camel@twins> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Mailer: Evolution 3.2.1- Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2011-12-21 at 17:22 +0100, Peter Zijlstra wrote: > Could you explain that more, its not actually connecting with any > neurons.. Note that I don't actually know how uarts work. So telling me to go read that fine^Weffin' manual/wikipedia page is a good option. I found me this page: http://www.lammertbies.nl/comm/info/serial-uart.html and I guess I'll read it and pay extra attention to the flow control part, since I found in serial_core.h that x_char is xon/xoff related.