linux-kernel - Re: [workqueue/driver-core PATCH 1/5] workqueue: Provide queue_work_near to queue work near a given NUMA node

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Date:   Wed, 10 Oct 2018 08:30:11 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Alexander Duyck <alexander.h.duyck@...ux.intel.com>
Cc:     gregkh@...uxfoundation.org, akpm@...ux-foundation.org,
        linux-kernel@...r.kernel.org, len.brown@...el.com,
        rafael@...nel.org, linux-pm@...r.kernel.org,
        jiangshanlai@...il.com, pavel@....cz, zwisler@...nel.org
Subject: Re: [workqueue/driver-core PATCH 1/5] workqueue: Provide
 queue_work_near to queue work near a given NUMA node

Hello,

> +static int workqueue_select_cpu_near(int node)
> +{
...
> +	/* Use "random" otherwise know as "first" online CPU of node */
> +	cpu = cpumask_any_and(cpumask_of_node(node), cpu_online_mask);

Maybe we wanna round-robin within the node?

> +bool queue_work_near(int node, struct workqueue_struct *wq,
> +		     struct work_struct *work)

Can we name it queue_work_node() to stay consistent with numa-aware
memory interface?

Thanks.

-- 
tejun