From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753225Ab1K1Lgp (ORCPT ); Mon, 28 Nov 2011 06:36:45 -0500 Received: from bender.cm4all.net ([87.106.27.49]:40902 "EHLO bender.cm4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752519Ab1K1Lgo (ORCPT ); Mon, 28 Nov 2011 06:36:44 -0500 Subject: [PATCH] sched: configure a lockdep class for rq->lock To: linux-kernel@vger.kernel.org From: Max Kellermann Date: Mon, 28 Nov 2011 12:38:52 +0100 Message-ID: <20111128113852.23015.88535.stgit@rabbit.intern.cm-ag> User-Agent: StGit/0.15 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This fixes the warning that disables lockdep at runtime: INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. Signed-off-by: Max Kellermann --- kernel/sched.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index b50b0f0..57f9b37 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -574,6 +574,8 @@ struct rq { #endif }; +static struct lock_class_key rq_lock_class; + static DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); @@ -8077,6 +8079,7 @@ void __init sched_init(void) rq = cpu_rq(i); raw_spin_lock_init(&rq->lock); + lockdep_set_class(&rq->lock, &rq_lock_class); rq->nr_running = 0; rq->calc_load_active = 0; rq->calc_load_update = jiffies + LOAD_FREQ;