linux-kernel - Re: [PATCH RT 7/9][RFC] [PATCH 7/9] cpu/rt: Rework cpu down for PREEMPT

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Message-ID: <1330702854.25686.267.camel@gandalf.stny.rr.com>
Date:	Fri, 02 Mar 2012 10:40:54 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	linux-kernel@...r.kernel.org,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	Carsten Emde <C.Emde@...dl.org>,
	John Kacur <jkacur@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Clark Williams <clark.williams@...il.com>
Subject: Re: [PATCH RT 7/9][RFC] [PATCH 7/9] cpu/rt: Rework cpu down for
 PREEMPT_RT

On Fri, 2012-03-02 at 10:36 -0500, Steven Rostedt wrote:
>  
> +#ifdef CONFIG_PREEMPT_RT_FULL
> +# define hotplug_lock() spin_lock(&cpu_hotplug.lock)
> +# define hotplug_unlock() spin_unlock(&cpu_hotplug.lock)
> +#else
> +# define hotplug_lock() mutex_lock(&cpu_hotplug.lock)
> +# define hotplug_lock() mutex_unlock(&cpu_hotplug.lock)

# define hotplug_unlock() mutex_unlock(&cpu_hotplug.lock)

Proof it doesn't comply.

-- Steve

> +#endif



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