linux-ext4 - Re: [PATCH v5 04/13] mm: Add readahead address space operation

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Date:   Wed, 12 Feb 2020 10:18:11 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-erofs@...ts.ozlabs.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, cluster-devel@...hat.com,
        ocfs2-devel@....oracle.com, linux-xfs@...r.kernel.org
Subject: Re: [PATCH v5 04/13] mm: Add readahead address space operation

On Mon, Feb 10, 2020 at 05:03:39PM -0800, Matthew Wilcox wrote:
> +struct readahead_control {
> +	struct file *file;
> +	struct address_space *mapping;
> +/* private: use the readahead_* accessors instead */
> +	pgoff_t start;
> +	unsigned int nr_pages;
> +	unsigned int batch_count;

We often use __ prefixes for the private fields to make that a little
more clear.