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Subject: Re: [PATCH v15 01/14] mm/page_ext: Export lookup_page_ext() to GPL
 modules
To:     SeongJae Park <sjpark@amazon.com>, akpm@linux-foundation.org
Cc:     SeongJae Park <sjpark@amazon.de>, Jonathan.Cameron@Huawei.com,
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References: <20200608114047.26589-1-sjpark@amazon.com>
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From:   David Hildenbrand <david@redhat.com>
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Organization: Red Hat GmbH
Message-ID: <cf508f7e-925c-790c-7477-9a1d8150336d@redhat.com>
Date:   Mon, 8 Jun 2020 13:53:23 +0200
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On 08.06.20 13:40, SeongJae Park wrote:
> From: SeongJae Park <sjpark@amazon.de>
> 
> This commit exports 'lookup_page_ext()' to GPL modules.  This will be
> used by DAMON.
> 
> Signed-off-by: SeongJae Park <sjpark@amazon.de>
> Reviewed-by: Leonard Foerster <foersleo@amazon.de>
> ---
>  mm/page_ext.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/mm/page_ext.c b/mm/page_ext.c
> index a3616f7a0e9e..9d802d01fcb5 100644
> --- a/mm/page_ext.c
> +++ b/mm/page_ext.c
> @@ -131,6 +131,7 @@ struct page_ext *lookup_page_ext(const struct page *page)
>  					MAX_ORDER_NR_PAGES);
>  	return get_entry(base, index);
>  }
> +EXPORT_SYMBOL_GPL(lookup_page_ext);
>  
>  static int __init alloc_node_page_ext(int nid)
>  {
> 

I've been told to always smuggle new EXPORTs into the patch that
actually needs it (and cc relevant people on that patch instead).

-- 
Thanks,

David / dhildenb