From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754134AbZLBTtV (ORCPT ); Wed, 2 Dec 2009 14:49:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753976AbZLBTtS (ORCPT ); Wed, 2 Dec 2009 14:49:18 -0500 Received: from mail-ew0-f219.google.com ([209.85.219.219]:64981 "EHLO mail-ew0-f219.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753696AbZLBTtO (ORCPT ); Wed, 2 Dec 2009 14:49:14 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=a9Tv8zcIXJzl/ves/O9lIpF4MdqZtRAifWHycc2S2PSsMWPPdSC6M7u4MQNjqpm9U9 /LlgGHgKmHKAhUXdfvgyo2SQTob3gjhHmgp/xOytF70RLAvB2qVmshBdb8o/Eq+LxeSm 0TrB0JbounEQ16sbSNsUgf6v3I8oTc72DHhys= From: Frederic Weisbecker To: Ingo Molnar Cc: LKML , Frederic Weisbecker , Peter Zijlstra Subject: [PATCH 2/2] mutex: Fix missing conditions to build mutex_spin_on_owner() Date: Wed, 2 Dec 2009 20:49:17 +0100 Message-Id: <1259783357-8542-2-git-send-regression-fweisbec@gmail.com> X-Mailer: git-send-email 1.6.2.3 In-Reply-To: <1259783357-8542-1-git-send-regression-fweisbec@gmail.com> References: <1259783357-8542-1-git-send-regression-fweisbec@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We don't need to build mutex_spin_on_owner() if we have CONFIG_DEBUG_MUTEXES or CONFIG_HAVE_DEFAULT_NO_SPIN_MUTEXES as it won't be used under such configs. Use CONFIG_MUTEX_SPIN_ON_OWNER as it gathers all the necessary checks before building it. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra --- kernel/sched.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index 7b1b2b5..aa31244 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5527,7 +5527,7 @@ need_resched_nonpreemptible: } EXPORT_SYMBOL(schedule); -#ifdef CONFIG_SMP +#ifdef CONFIG_MUTEX_SPIN_ON_OWNER /* * Look out! "owner" is an entirely speculative pointer * access and not reliable. -- 1.6.2.3