linux-kernel - Re: [PATCH tip/core/rcu 01/15] rcu: Add PROVE_RCU

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Message-ID: <1346942312.18408.26.camel@twins>
Date:	Thu, 06 Sep 2012 16:38:32 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, josh@...htriplett.org,
	niv@...ibm.com, tglx@...utronix.de, rostedt@...dmis.org,
	Valdis.Kletnieks@...edu, dhowells@...hat.com,
	eric.dumazet@...il.com, darren@...art.com, fweisbec@...il.com,
	sbw@....edu, patches@...aro.org,
	"Paul E. McKenney" <paul.mckenney@...aro.org>
Subject: Re: [PATCH tip/core/rcu 01/15] rcu: Add PROVE_RCU_DELAY to provoke
 difficult races

On Thu, 2012-08-30 at 11:56 -0700, Paul E. McKenney wrote:
> +#ifdef CONFIG_PROVE_RCU_DELAY
> +               udelay(10); /* Make preemption more probable. */
		cond_resched(); /* for extra fun? */
> +#endif /* #ifdef CONFIG_PROVE_RCU_DELAY */ 


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