linux-kernel - [PATCH tip/core/rcu 0/2] RCU force_quiescent

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Message-ID: <20091028151419.GA7838@linux.vnet.ibm.com>
Date:	Wed, 28 Oct 2009 08:14:19 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, dvhltc@...ibm.com, niv@...ibm.com,
	tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
	Valdis.Kletnieks@...edu, dhowells@...hat.com
Subject: [PATCH tip/core/rcu 0/2] RCU force_quiescent_state() fix and
	dyntick cleanup

This patch series contains a cleanup and a fix:

o	Code cleanup from Lai Jiangshan that makes the calls to
	rcu_irq_enter() and rcu_irq_exit() more obviously correct.
	The previous code worked because rcu_irq_exit() is always
	an empty function if !NO_HZ.

o	Fix a low-probability race in the TREE_RCU infrastructure
	that can be triggered by extremely long grace periods.

						Thanx, Paul
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