261 	bufhead.b_next = bufhead.b_prev = &bufhead;  in bufinit()
274 		bp->b_prev = &bufhead;  in bufinit()
275 		bp->b_next = bufhead.b_next;  in bufinit()
276 		bufhead.b_next->b_prev = bp;  in bufinit()
277 		bufhead.b_next = bp;  in bufinit()
280 	bufhead.b_size = i;	/* save number of buffers */  in bufinit()
292 	for (bp = bufhead.b_next; bp != &bufhead; bp = bp->b_next)  in getdatablk()
295 	for (bp = bufhead.b_prev; bp != &bufhead; bp = bp->b_prev)  in getdatablk()
298 	if (bp == &bufhead)  in getdatablk()
306 	bp->b_prev = &bufhead;  in getdatablk()
307 	bp->b_next = bufhead.b_next;  in getdatablk()
308 	bufhead.b_next->b_prev = bp;  in getdatablk()
309 	bufhead.b_next = bp;  in getdatablk()
360 	for (bp = bufhead.b_prev; bp && bp != &bufhead; bp = nbp) {  in ckfini()
368 	if (bufhead.b_size != cnt)  in ckfini()
370 		    bufhead.b_size - cnt);  in ckfini()