linux-kernel - Re: [PATCH tip/core/rcu 6/6] rcu: Simplify creating of lockdep class for root rcu

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Date:	Mon, 26 Oct 2009 10:12:52 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	mingo@...e.hu, linux-kernel@...r.kernel.org, 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, avi@...hat.com,
	mtosatti@...hat.com
Subject: Re: [PATCH tip/core/rcu 6/6] rcu: Simplify creating of lockdep
	class for root rcu_node

On Mon, Oct 26, 2009 at 04:34:10PM +0800, Lai Jiangshan wrote:
> Paul E. McKenney wrote:
> > diff --git a/kernel/rcutree.h b/kernel/rcutree.h
> > index 599161f..e091b30 100644
> > --- a/kernel/rcutree.h
> > +++ b/kernel/rcutree.h
> > @@ -296,6 +296,8 @@ DECLARE_PER_CPU(struct rcu_data, rcu_preempt_data);
> >  
> >  #else /* #ifdef RCU_TREE_NONCORE */
> >  
> > +static struct lock_class_key rcu_root_class;
> > +
> 
> I think this line needs to be moved into rcutree.c.

Good point, I will submit a cleanup patch.

> >  /* Forward declarations for rcutree_plugin.h */
> >  static inline void rcu_bootup_announce(void);
> >  long rcu_batches_completed(void);
> 
> For all 6 patches:
> Reviewed-by: Lai Jiangshan <laijs@...fujitsu.com>

Thank you!!!

							Thanx, Paul

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