255 struct cbuf {  struct
256 	cbuf_t *next;			/* next in list */  argument
257 	cbufstate_t state;		/* processing state */  argument
258 	size_t used;			/* amount used */
259 	size_t size;			/* mem size */
260 	char *buf;			/* kmem or vmem */
261 	pgcnt_t pagenum;		/* index to pfn map */
262 	pgcnt_t bitnum;			/* first set bitnum */
263 	pfn_t pfn;			/* first pfn in mapped range */
264 	int off;			/* byte offset to first pfn */
407 	cbuf_t	*cbuf;		/* array of output  buffers */  member