From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758311AbZKJVhV (ORCPT ); Tue, 10 Nov 2009 16:37:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758298AbZKJVhR (ORCPT ); Tue, 10 Nov 2009 16:37:17 -0500 Received: from e2.ny.us.ibm.com ([32.97.182.142]:48883 "EHLO e2.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758294AbZKJVhP (ORCPT ); Tue, 10 Nov 2009 16:37:15 -0500 From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 2/4] rcu: enable synchronize_sched_expedited() fastpath Date: Tue, 10 Nov 2009 13:37:20 -0800 Message-Id: <1257889042435-git-send-email-> X-Mailer: git-send-email 1.5.2.5 In-Reply-To: <20091110213651.GA21411@linux.vnet.ibm.com> References: <20091110213651.GA21411@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Paul E. McKenney This patch adds a counter increment to enable tasks to actually take the synchronize_sched_expedited() function's fastpath. Signed-off-by: Paul E. McKenney --- kernel/sched.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index 76c0e96..e69fee4 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -10865,6 +10865,7 @@ void synchronize_sched_expedited(void) spin_unlock_irqrestore(&rq->lock, flags); } rcu_expedited_state = RCU_EXPEDITED_STATE_IDLE; + synchronize_sched_expedited_count++; mutex_unlock(&rcu_sched_expedited_mutex); put_online_cpus(); if (need_full_sync) -- 1.5.2.5