linux-kernel - Re: [PATCH 07/11] pipe: remove generic_pipe_buf

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Message-ID: <20160916112341.GA3050@infradead.org>
Date:   Fri, 16 Sep 2016 04:23:41 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Miklos Szeredi <mszeredi@...hat.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Al Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH 07/11] pipe: remove generic_pipe_buf_confirm()

>  static inline int pipe_buf_confirm(struct pipe_inode_info *pipe,
>  				   struct pipe_buffer *buf)
>  {
> -	return buf->ops->confirm(pipe, buf);
> +	return 0;
>  }

Why do you keep pipe_buf_confirm around?