Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755266Ab0FXMCa (ORCPT ); Thu, 24 Jun 2010 08:02:30 -0400 Received: from one.firstfloor.org ([213.235.205.2]:42469 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752642Ab0FXMC3 (ORCPT ); Thu, 24 Jun 2010 08:02:29 -0400 Date: Thu, 24 Jun 2010 14:02:26 +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: <20100624120226.GH578@basil.fritz.box> References: <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> <1277379204.1875.957.camel@laptop> <20100624115520.GF578@basil.fritz.box> <1277380649.1875.962.camel@laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277380649.1875.962.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 Content-Length: 842 Lines: 21 On Thu, Jun 24, 2010 at 01:57:29PM +0200, Peter Zijlstra wrote: > On Thu, 2010-06-24 at 13:55 +0200, Andi Kleen wrote: > > > but we don't have anything else that does that. > > > > Actually we do, audit in syscalls and scheduling in interrupts and signals > > all work this way. Probably more at some point adding more code to this > > path was very popular. > > That's the return to user path, nothing to do with softirqs. Add a TIF > flag and call your function there. It does that, but there are some cases where it's not enough. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/