netdev - Re: [PATCH 04/11] vfs: add a vfs helper for io

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Message-ID: <ZOu2SbpbRtQPeaDk@casper.infradead.org>
Date: Sun, 27 Aug 2023 21:47:05 +0100
From: Matthew Wilcox <willy@...radead.org>
To: Hao Xu <hao.xu@...ux.dev>
Cc: io-uring@...r.kernel.org, Jens Axboe <axboe@...nel.dk>,
	Dominique Martinet <asmadeus@...ewreck.org>,
	Pavel Begunkov <asml.silence@...il.com>,
	Christian Brauner <brauner@...nel.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Stefan Roesch <shr@...com>, Clay Harris <bugs@...ycon.org>,
	Dave Chinner <david@...morbit.com>,
	"Darrick J . Wong" <djwong@...nel.org>,
	linux-fsdevel@...r.kernel.org, linux-xfs@...r.kernel.org,
	linux-ext4@...r.kernel.org, linux-cachefs@...hat.com,
	ecryptfs@...r.kernel.org, linux-nfs@...r.kernel.org,
	linux-unionfs@...r.kernel.org, bpf@...r.kernel.org,
	netdev@...r.kernel.org, linux-s390@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
	linux-btrfs@...r.kernel.org, codalist@...a.cs.cmu.edu,
	linux-f2fs-devel@...ts.sourceforge.net, cluster-devel@...hat.com,
	linux-mm@...ck.org, linux-nilfs@...r.kernel.org,
	devel@...ts.orangefs.org, linux-cifs@...r.kernel.org,
	samba-technical@...ts.samba.org, linux-mtd@...ts.infradead.org,
	Wanpeng Li <wanpengli@...cent.com>
Subject: Re: [PATCH 04/11] vfs: add a vfs helper for io_uring file pos lock

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.