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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH RFC tip/core/rcu 06/12] rcu: Distinguish between boosting and boosted
Date: Sat,  6 Nov 2010 19:05:26 -0700	[thread overview]
Message-ID: <1289095532-5398-6-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <20101107020507.GA4974@linux.vnet.ibm.com>

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 <paulmck@linux.vnet.ibm.com>
---
 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


  parent reply	other threads:[~2010-11-07  2:06 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-07  2:05 [PATCH RFC tip/core/rcu 0/12] preview of RCU patches for 2.6.38 Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 01/12] rcu: add priority-inversion testing to rcutorture Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 02/12] rcu: move TINY_RCU from softirq to kthread Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 03/12] rcu: priority boosting for TINY_PREEMPT_RCU Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 04/12] rcu: add tracing for TINY_RCU and TINY_PREEMPT_RCU Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 05/12] rcu: document TINY_RCU and TINY_PREEMPT_RCU tracing Paul E. McKenney
2010-11-07  2:05 ` Paul E. McKenney [this message]
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 07/12] rcu: get rid of obsolete "classic" names in TREE_RCU tracing Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 08/12] rcu,cleanup: move synchronize_sched_expedited() out of sched.c Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 09/12] rcu,cleanup: simplify the code when cpu is dying Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 10/12] rcu: update documentation/comments for Lai's adoption patch Paul E. McKenney
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 11/12] rcu: fix race condition in synchronize_sched_expedited() Paul E. McKenney
2010-11-09 13:26   ` Tejun Heo
2010-11-10  8:56     ` Lai Jiangshan
2010-11-11  4:20       ` Paul E. McKenney
2010-11-11  9:10         ` Tejun Heo
2010-11-11 12:31           ` Paul E. McKenney
2010-11-11 12:52             ` Tejun Heo
2010-11-07  2:05 ` [PATCH RFC tip/core/rcu 12/12] rcu: Make synchronize_srcu_expedited() fast if running readers Paul E. McKenney

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