99 struct buf {  struct
100 	struct bufobj	*b_bufobj;  argument
109 	void	(*b_iodone)(struct buf *);  argument
110 	void	(*b_ckhashcalc)(struct buf *);  argument
114 	TAILQ_ENTRY(buf) b_bobufs;	/* (V) Buffer's associated vnode. */  argument
116 	uint8_t		b_qindex;	/* (Q) buffer queue index */  argument
117 	uint8_t		b_domain;	/* (Q) buf domain this resides in */  argument
122 	long	b_bufsize;		/* Allocated buffer size. */  argument
123 	int	b_runningbufspace;	/* when I/O is running, pipelining */  argument
124 	int	b_kvasize;		/* size of kva for buffer */  argument
125 	int	b_dirtyoff;		/* Offset in buffer of dirty region. */  argument
127 	caddr_t	b_kvabase;		/* base kva for buffer */  argument
133 		TAILQ_ENTRY(buf) b_freelist; /* (Q) */  argument
141 		TAILQ_HEAD(cluster_list_head, buf) cluster_head;  argument
161 #define b_object	b_bufobj->bo_object  argument