Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751398AbWE2VgV (ORCPT ); Mon, 29 May 2006 17:36:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751365AbWE2VfA (ORCPT ); Mon, 29 May 2006 17:35:00 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:59832 "EHLO mx3.mail.elte.hu") by vger.kernel.org with ESMTP id S1751364AbWE2V0H (ORCPT ); Mon, 29 May 2006 17:26:07 -0400 Date: Mon, 29 May 2006 23:26:26 +0200 From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Arjan van de Ven , Andrew Morton Subject: [patch 41/61] lock validator: special locking: genirq Message-ID: <20060529212626.GO3155@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060529212109.GA2058@elte.hu> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: 0.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=0.0 required=5.9 tests=AWL autolearn=no SpamAssassin version=3.0.3 0.0 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1222 Lines: 45 From: Ingo Molnar teach special (recursive) locking code to the lock validator. Has no effect on non-lockdep kernels. Signed-off-by: Ingo Molnar Signed-off-by: Arjan van de Ven --- --- kernel/irq/handle.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) Index: linux/kernel/irq/handle.c =================================================================== --- linux.orig/kernel/irq/handle.c +++ linux/kernel/irq/handle.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "internals.h" @@ -193,3 +194,15 @@ out: return 1; } +/* + * lockdep: we want to handle all irq_desc locks as a single lock-type: + */ +static struct lockdep_type_key irq_desc_lock_type; + +void early_init_irq_lock_type(void) +{ + int i; + + for (i = 0; i < NR_IRQS; i++) + spin_lock_init_key(&irq_desc[i].lock, &irq_desc_lock_type); +} - 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/