159 struct xfs_buf {  struct
173 	xfs_buf_flags_t		b_flags;	/* status flags */  argument
188 	struct xfs_buftarg	*b_target;	/* buffer target (device) */  argument
192 	struct xfs_buf_log_item	*b_log_item;  argument
197 	struct xfs_buf_map	*b_maps;	/* compound buffer map */  argument
198 	struct xfs_buf_map	__b_map;	/* inline compound buffer map */  argument
199 	int			b_map_count;
200 	atomic_t		b_pin_count;	/* pin count */
201 	atomic_t		b_io_remaining;	/* #outstanding I/O requests */
202 	unsigned int		b_page_count;	/* size of page array */
226 	const struct xfs_buf_ops	*b_ops;  argument
232 		int nmaps, xfs_buf_flags_t flags, struct xfs_buf **bpp);  argument