linux-kernel - Re: Re: [PATCH v15 01/14] mm/page_ext: Export lookup_page

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Message-ID: <20200608115634.30778-1-sjpark@amazon.com>
Date:   Mon, 8 Jun 2020 13:56:34 +0200
From:   SeongJae Park <sjpark@...zon.com>
To:     David Hildenbrand <david@...hat.com>
CC:     SeongJae Park <sjpark@...zon.com>, <akpm@...ux-foundation.org>,
        "SeongJae Park" <sjpark@...zon.de>, <Jonathan.Cameron@...wei.com>,
        <aarcange@...hat.com>, <acme@...nel.org>,
        <alexander.shishkin@...ux.intel.com>, <amit@...nel.org>,
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        <ying.huang@...el.com>, <linux-damon@...zon.com>,
        <linux-mm@...ck.org>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: Re: [PATCH v15 01/14] mm/page_ext: Export lookup_page_ext() to GPL modules

On Mon, 8 Jun 2020 13:53:23 +0200 David Hildenbrand <david@...hat.com> wrote:

> On 08.06.20 13:40, SeongJae Park wrote:
> > From: SeongJae Park <sjpark@...zon.de>
> > 
> > This commit exports 'lookup_page_ext()' to GPL modules.  This will be
> > used by DAMON.
> > 
> > Signed-off-by: SeongJae Park <sjpark@...zon.de>
> > Reviewed-by: Leonard Foerster <foersleo@...zon.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).

Sorry for didn't noticing that.  I will do so in the next spin.


Thanks,
SeongJae Park

> 
> -- 
> Thanks,
> 
> David / dhildenb