From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755264Ab0FXL6l (ORCPT ); Thu, 24 Jun 2010 07:58:41 -0400 Received: from one.firstfloor.org ([213.235.205.2]:35105 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754171Ab0FXL6k (ORCPT ); Thu, 24 Jun 2010 07:58:40 -0400 Date: Thu, 24 Jun 2010 13:58:39 +0200 From: Andi Kleen To: Peter Zijlstra Cc: Andi Kleen , Huang Ying , Ingo Molnar , "H.PeterA" <"nvin hpa"@zytor.com>, linux-kernel@vger.kernel.org Subject: Re: [RFC][PATCH] irq_work Message-ID: <20100624115838.GG578@basil.fritz.box> References: <1277364453.3947.64.camel@yhuang-dev.sh.intel.com> <1277364727.1875.857.camel@laptop> <20100624102725.GA578@basil.fritz.box> <1277375409.1875.943.camel@laptop> <20100624105254.GB578@basil.fritz.box> <1277377121.1875.948.camel@laptop> <20100624110830.GC578@basil.fritz.box> <1277377852.1875.950.camel@laptop> <20100624112040.GD578@basil.fritz.box> <1277379731.1875.961.camel@laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277379731.1875.961.camel@laptop> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 24, 2010 at 01:42:11PM +0200, Peter Zijlstra wrote: > On Thu, 2010-06-24 at 13:20 +0200, Andi Kleen wrote: > > Ok so going back to the original self-irq patchkit. Unfortunately the other > > reviewer hated that. How to get out of that deadlock? > > Well, I didn't like your original patch either. > > What's wrong with going with the patch I posted today? (aside from me > getting the barriers slightly wrong and not doing the arch > implementation). Well it would need to work. Also I personally didn't see the point of the irq items list because there's no good way to dynamically allocate it in a NMI, so the window would be always "fixed size" anyways and you could as well just use per cpu data. That's why for simple self irq I preferred Ying's original patch. -Andi -- ak@linux.intel.com -- Speaking for myself only.