linux-kernel - Re: [PATCH] rcu: don't call rcu_preempt_note_context_switch() in rcu_check

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Message-ID: <4BB5E2A3.3080105@cn.fujitsu.com>
Date:	Fri, 02 Apr 2010 20:27:15 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	paulmck@...ux.vnet.ibm.com
CC:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] rcu: don't call rcu_preempt_note_context_switch() in
 rcu_check_callbacks()

Paul E. McKenney wrote:
> On Thu, Apr 01, 2010 at 03:24:05PM +0800, Lai Jiangshan wrote:
>> Paul E. McKenney wrote:
>>> Possibly by moving the clearing of RCU_READ_UNLOCK_NEED_QS to
>>> rcu_preempt_check_callbacks() 
>> current rcu_preempt_check_callbacks() already has code to
>> clear RCU_READ_UNLOCK_NEED_QS.
> 
> English is failing me. 
> How about the following patch instead?  Untested,
> probably does not even compile.
> 
> 							Thanx, Paul
> 

Very nice, thank you.

Acked-by: Lai Jiangshan <laijs@...fujitsu.com>

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