linux-kernel - Re: [tip:sched/urgent] sched: Teach might

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Message-ID: <20091216191321.GB5211@nowhere>
Date:	Wed, 16 Dec 2009 20:13:23 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-tip-commits@...r.kernel.org,
	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	peterz@...radead.org, tglx@...utronix.de
Subject: Re: [tip:sched/urgent] sched: Teach might_sleep() about
	preemptible RCU

On Wed, Dec 16, 2009 at 07:57:32PM +0100, Frederic Weisbecker wrote:
> Looks like the problem is here:
> 
> rcupdate.h:
> 
> 	#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
> 	#include <linux/rcutree.h>
> 	#elif defined(CONFIG_TINY_RCU)
> 	#include <linux/rcutiny.h>
> 
> I guess it barfs in rcutiny configs.
> 
> I should define these helpers in rcupdate.
> 


Actually I'm going to define the rcu tiny off-case from rcutiny.h
It looks like rcupdate.h should really keep only the generic
bits.

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