146 struct xfs_buf {  struct
160 	xfs_buf_flags_t		b_flags;	/* status flags */  argument
175 	struct xfs_buftarg	*b_target;	/* buffer target (device) */  argument
179 	struct xfs_buf_log_item	*b_log_item;  argument
184 	struct xfs_buf_map	*b_maps;	/* compound buffer map */  argument
185 	struct xfs_buf_map	__b_map;	/* inline compound buffer map */  argument
186 	int			b_map_count;
187 	atomic_t		b_pin_count;	/* pin count */
188 	atomic_t		b_io_remaining;	/* #outstanding I/O requests */
189 	unsigned int		b_page_count;	/* size of page array */
213 	const struct xfs_buf_ops	*b_ops;  argument
219 		int nmaps, xfs_buf_flags_t flags, struct xfs_buf **bpp);  argument