From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753440Ab3KLIoe (ORCPT ); Tue, 12 Nov 2013 03:44:34 -0500 Received: from mail-pd0-f170.google.com ([209.85.192.170]:50854 "EHLO mail-pd0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751788Ab3KLIob (ORCPT ); Tue, 12 Nov 2013 03:44:31 -0500 Message-ID: <5281EA5F.3080604@biophys.uni-duesseldorf.de> Date: Tue, 12 Nov 2013 21:44:15 +1300 From: schmitz User-Agent: Mozilla/5.0 (X11; U; Linux ppc; en-US; rv:1.8.1.4) Gecko/20070509 Iceape/1.1.2 (Debian-1.1.2-1) MIME-Version: 1.0 To: Thomas Gleixner CC: LKML , Linux/m68k , Geert Uytterhoeven Subject: Re: [patch 1/6] hardirq: Make hardirq bits generic References: <20130917082838.218329307@infradead.org> <87txhg3ftx.fsf@igel.home> <55642d365fc4272c4f43a88ea435e360@biophys.uni-duesseldorf.de> In-Reply-To: <55642d365fc4272c4f43a88ea435e360@biophys.uni-duesseldorf.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Thomas, > >> >> If you look at the probability of the first two checks catching >> anything, then it's pretty low. Most interrupts returns go through >> ret_from_exception. Yes, I added counters which prove that at least on >> the aranym, but I doubt that it will make a real difference if you run >> this on real hardware. > > I'm happy to try that (indeed, verify your patch works on Atari > hardware first) - I trust the patch is relative to m68k git, not your > previous patches? Pleased to report the patch works, as expected, on the actual hardware. I doubt we still need to profile the interrupt return path, Geert? Cheers, Michael From mboxrd@z Thu Jan 1 00:00:00 1970 From: schmitz Subject: Re: [patch 1/6] hardirq: Make hardirq bits generic Date: Tue, 12 Nov 2013 21:44:15 +1300 Message-ID: <5281EA5F.3080604@biophys.uni-duesseldorf.de> References: <20130917082838.218329307@infradead.org> <87txhg3ftx.fsf@igel.home> <55642d365fc4272c4f43a88ea435e360@biophys.uni-duesseldorf.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pd0-f170.google.com ([209.85.192.170]:50854 "EHLO mail-pd0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751788Ab3KLIob (ORCPT ); Tue, 12 Nov 2013 03:44:31 -0500 In-Reply-To: <55642d365fc4272c4f43a88ea435e360@biophys.uni-duesseldorf.de> Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: Thomas Gleixner Cc: LKML , Linux/m68k , Geert Uytterhoeven Thomas, > >> >> If you look at the probability of the first two checks catching >> anything, then it's pretty low. Most interrupts returns go through >> ret_from_exception. Yes, I added counters which prove that at least on >> the aranym, but I doubt that it will make a real difference if you run >> this on real hardware. > > I'm happy to try that (indeed, verify your patch works on Atari > hardware first) - I trust the patch is relative to m68k git, not your > previous patches? Pleased to report the patch works, as expected, on the actual hardware. I doubt we still need to profile the interrupt return path, Geert? Cheers, Michael