npages = MAX(npages, MIN_BUFFERS);
npages = PR_MAX(npages, MIN_BUFFERS);
extern void __buf_init(HTAB *hashp, int32 nbytes){	BUFHEAD *bfp;	int npages;	bfp = &(hashp->bufhead);	npages = (nbytes + hashp->BSIZE - 1) >> hashp->BSHIFT;	npages = MAX(npages, MIN_BUFFERS);	hashp->nbufs = npages;	bfp->next = bfp;	bfp->prev = bfp;	/*	 * This space is calloc'd so these are already null.	 *	 * bfp->ovfl = NULL;	 * bfp->flags = 0;	 * bfp->page = NULL;	 * bfp->addr = 0;	 */}