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Date: Sat, 17 Dec 2011 18:11:55 -0500
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 03/12] xfs: introduce a compound buffer construct
Message-ID: <20111217231155.GA2383@infradead.org>
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> +struct xfs_buf_vec {
> +	xfs_daddr_t		bv_bn;	/* block number for I/O */
> +	size_t			bv_len;	/* size of I/O */
> +};
> +#define XB_VECS		2

Why do we embedd to of these by default?  In general we'd either have
one or a number much bigger than two here.

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