linux-kernel - Re: [PATCH V3 03/10] workqueue: async worker destruction

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Message-ID: <20140520142345.GB2804@htj.dyndns.org>
Date:	Tue, 20 May 2014 10:23:45 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 03/10] workqueue: async worker destruction

On Tue, May 20, 2014 at 05:46:29PM +0800, Lai Jiangshan wrote:
...
> +static void worker_detach_from_pool(struct worker *worker,
> +				    struct worker_pool *pool)
> +{
> +	struct completion *detach_completion = NULL;
> +
> +	mutex_lock(&pool->manager_mutex);
> +	idr_remove(&pool->worker_idr, worker->id);
> +	if (idr_is_empty(&pool->worker_idr))
> +		detach_completion = pool->detach_completion;
> +	mutex_unlock(&pool->manager_mutex);
> +
> +	if (detach_completion)
> +		complete(detach_completion);

Also, please add comment explaining what's going on here.

-- 
tejun
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