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Message-ID: <1b9c2f74-c16d-8e19-17fa-615ff51f27f1@kylinos.cn>
Date:   Thu, 15 Sep 2022 08:40:46 +0800
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Subject: Re: [PATCH] mm/filemap: Make folio_put_wait_locked static
Content-Language: en-US
To:     Matthew Wilcox <willy@infradead.org>,
        Andrew Morton <akpm@linux-foundation.org>
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        k2ci <kernel-bot@kylinos.cn>, linux-fsdevel@vger.kernel.org
References: <20220914015836.3193197-1-sunke@kylinos.cn>
From:   Ke Sun <sunke@kylinos.cn>
In-Reply-To: <20220914015836.3193197-1-sunke@kylinos.cn>
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Ping.

On 2022/9/14 09:58, Ke Sun wrote:
> It's only used in mm/filemap.c, since commit <ffa65753c431>
> ("mm/migrate.c: rework migration_entry_wait() to not take a pageref").
>
> Make it static.
>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: linux-mm@kvack.org
> Cc: linux-kernel@vger.kernel.org
> Reported-by: k2ci <kernel-bot@kylinos.cn>
> Signed-off-by: Ke Sun <sunke@kylinos.cn>
> ---
>   include/linux/pagemap.h | 1 -
>   mm/filemap.c            | 2 +-
>   2 files changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
> index 0178b2040ea3..82880993dd1a 100644
> --- a/include/linux/pagemap.h
> +++ b/include/linux/pagemap.h
> @@ -1042,7 +1042,6 @@ static inline int wait_on_page_locked_killable(struct page *page)
>   	return folio_wait_locked_killable(page_folio(page));
>   }
>   
> -int folio_put_wait_locked(struct folio *folio, int state);
>   void wait_on_page_writeback(struct page *page);
>   void folio_wait_writeback(struct folio *folio);
>   int folio_wait_writeback_killable(struct folio *folio);
> diff --git a/mm/filemap.c b/mm/filemap.c
> index 15800334147b..ade9b7bfe7fc 100644
> --- a/mm/filemap.c
> +++ b/mm/filemap.c
> @@ -1467,7 +1467,7 @@ EXPORT_SYMBOL(folio_wait_bit_killable);
>    *
>    * Return: 0 if the folio was unlocked or -EINTR if interrupted by a signal.
>    */
> -int folio_put_wait_locked(struct folio *folio, int state)
> +static int folio_put_wait_locked(struct folio *folio, int state)
>   {
>   	return folio_wait_bit_common(folio, PG_locked, state, DROP);
>   }