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Date: Sun, 27 Aug 2023 21:47:05 +0100
From: Matthew Wilcox <willy@infradead.org>
To: Hao Xu <hao.xu@linux.dev>
Cc: io-uring@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
	Dominique Martinet <asmadeus@codewreck.org>,
	Pavel Begunkov <asml.silence@gmail.com>,
	Christian Brauner <brauner@kernel.org>,
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	Dave Chinner <david@fromorbit.com>,
	"Darrick J . Wong" <djwong@kernel.org>,
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	Wanpeng Li <wanpengli@tencent.com>
Subject: Re: [PATCH 04/11] vfs: add a vfs helper for io_uring file pos lock
Message-ID: <ZOu2SbpbRtQPeaDk@casper.infradead.org>
References: <20230827132835.1373581-1-hao.xu@linux.dev>
 <20230827132835.1373581-5-hao.xu@linux.dev>
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	lindbergh.monkeyblade.net

On Sun, Aug 27, 2023 at 09:28:28PM +0800, Hao Xu wrote:
> +++ b/include/linux/file.h
> @@ -81,6 +81,8 @@ static inline void fdput_pos(struct fd f)
>  	fdput(f);
>  }
>  
> +extern int file_pos_lock_nowait(struct file *file, bool nowait);

No extern on function declarations.