From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753814Ab0KGCGt (ORCPT ); Sat, 6 Nov 2010 22:06:49 -0400 Received: from e2.ny.us.ibm.com ([32.97.182.142]:49261 "EHLO e2.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752783Ab0KGCFl (ORCPT ); Sat, 6 Nov 2010 22:05:41 -0400 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, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, "Paul E. McKenney" Subject: [PATCH RFC tip/core/rcu 06/12] rcu: Distinguish between boosting and boosted Date: Sat, 6 Nov 2010 19:05:26 -0700 Message-Id: <1289095532-5398-6-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.0.6 In-Reply-To: <20101107020507.GA4974@linux.vnet.ibm.com> References: <20101107020507.GA4974@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RCU priority boosting's tracing did not distinguish between ongoing boosting and completion of boosting. This commit therefore adds this capability. Signed-off-by: Paul E. McKenney --- kernel/rcutiny_plugin.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h index 419b796..297aa35 100644 --- a/kernel/rcutiny_plugin.h +++ b/kernel/rcutiny_plugin.h @@ -229,6 +229,9 @@ static void show_tiny_preempt_stats(struct seq_file *m) seq_puts(m, "no"); break; case 1: + seq_puts(m, "begun"); + break; + case 2: seq_puts(m, "done"); break; default: @@ -284,6 +287,7 @@ static int rcu_boost(void) raw_local_irq_restore(flags); rt_mutex_lock(&mtx); RCU_TRACE(rcu_preempt_ctrlblk.n_tasks_boosted++); + rcu_preempt_ctrlblk.boosted_this_gp++; rt_mutex_unlock(&mtx); return rcu_preempt_ctrlblk.boost_tasks != NULL; } -- 1.7.0.6