linux-kernel - Re: [PATCH 1/2] kernel/workqueue: Make schedule_on_each_cpu as EXPORT

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Date:   Mon, 23 Aug 2021 13:58:56 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Ritesh Harjani <riteshh@...ux.ibm.com>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Dennis Zhou <dennis@...nel.org>, Tejun Heo <tj@...nel.org>,
        Christoph Lameter <cl@...ux.com>
Subject: Re: [PATCH 1/2] kernel/workqueue: Make schedule_on_each_cpu as
 EXPORT_SYMBOL

On Mon, Aug 23, 2021 at 03:37:45PM +0530, Ritesh Harjani wrote:
> Make schedule_on_each_cpu as EXPORT_SYMBOL.
> 
> Signed-off-by: Ritesh Harjani <riteshh@...ux.ibm.com>
> ---
>  kernel/workqueue.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/kernel/workqueue.c b/kernel/workqueue.c
> index f148eacda55a..6f15e4afbf38 100644
> --- a/kernel/workqueue.c
> +++ b/kernel/workqueue.c
> @@ -3309,6 +3309,7 @@ int schedule_on_each_cpu(work_func_t func)
>  	free_percpu(works);
>  	return 0;
>  }
> +EXPORT_SYMBOL(schedule_on_each_cpu);

Please don't export random bits just for a test.  Especially non without
an EXPORT_SYMBOL_GPL.