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Subject: Re: [PATCH RT 2/4] wait-simple: Simple waitqueue implementation
From: Mike Galbraith <efault@gmx.de>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org,
        linux-rt-users <linux-rt-users@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>, Carsten Emde <C.Emde@osadl.org>,
        John Kacur <jkacur@redhat.com>
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References: <20120118034531.335521323@goodmis.org>
	 <20120118034700.245278561@goodmis.org>
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Date: Wed, 18 Jan 2012 10:28:48 +0100
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Greetings,

On Tue, 2012-01-17 at 22:45 -0500, Steven Rostedt wrote:

> diff --git a/kernel/wait-simple.c b/kernel/wait-simple.c
> new file mode 100644
> index 0000000..7f1cb72
> --- /dev/null
> +++ b/kernel/wait-simple.c
> @@ -0,0 +1,62 @@
> +/*
> + * Simple waitqueues without fancy flags and callbacks
> + *
> + * (C) 2011 Thomas Gleixner <tglx@linutronix.de>
> + *
> + * Based on kernel/wait.c
> + *
> + * For licencing details see kernel-base/COPYING
> + */
> +#include <linux/init.h>
> +#include <linux/sched.h>
> +#include <linux/wait-simple.h>
> +
> +void __init_swait_head(struct swait_head *head, struct lock_class_key *key)
> +{
> +	raw_spin_lock_init(&head->lock);
> +	lockdep_set_class(&head->lock, key);
> +	INIT_LIST_HEAD(&head->list);
> +}
> +EXPORT_SYMBOL_GPL(__init_swait_head);

#include <linux/module.h> ?

	-Mike