Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751238AbaKXVaJ (ORCPT ); Mon, 24 Nov 2014 16:30:09 -0500 Received: from www.linutronix.de ([62.245.132.108]:41478 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750780AbaKXVaG (ORCPT ); Mon, 24 Nov 2014 16:30:06 -0500 Date: Mon, 24 Nov 2014 22:29:58 +0100 (CET) From: Thomas Gleixner To: Daniel Thompson cc: linaro-kernel@lists.linaro.org, Russell King , Jason Cooper , patches@linaro.org, Marc Zyngier , linux-kernel@vger.kernel.org, Daniel Drake , Dmitry Pervushin , linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 3.18-rc3 v8 1/4] irqchip: gic: Make gic_raise_softirq() FIQ-safe In-Reply-To: <54739CA8.2080406@linaro.org> Message-ID: References: <1415183260-6389-1-git-send-email-daniel.thompson@linaro.org> <1415968543-29469-1-git-send-email-daniel.thompson@linaro.org> <1415968543-29469-2-git-send-email-daniel.thompson@linaro.org> <54739CA8.2080406@linaro.org> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 24 Nov 2014, Daniel Thompson wrote: > On 24/11/14 20:38, Thomas Gleixner wrote: > > So while I cannot come up with a brilliant replacement, it would be > > really helpful documentation wise if you could do the following: > > > > 1) Create a patch which introduces irq_migration_lock as a raw > > spinlock and replaces the usage of irq_controller_lock in > > gic_raise_softirq() and gic_migrate_target() along with a proper > > explanation in the code and the changelog of course. > > Replace irq_controller_lock or augment it with a new one? Replace it in gic_raise_softirq() and add it to gic_migrate_target() as you did with the RW lock. Thanks, tglx -- 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/