linux-kernel - Re: [PATCH RT 2/4] wait-simple: Simple waitqueue implementation

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Message-ID: <1326878928.7482.2.camel@marge.simson.net>
Date:	Wed, 18 Jan 2012 10:28:48 +0100
From:	Mike Galbraith <efault@....de>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Carsten Emde <C.Emde@...dl.org>, John Kacur <jkacur@...hat.com>
Subject: Re: [PATCH RT 2/4] wait-simple: Simple waitqueue implementation

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@...utronix.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

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