68 	size_t resid;  in read()  local
80 		    btodb(f->f_offset), bcount, dest, &resid);  in read()
83 		f->f_offset += resid;  in read()
85 		return (resid);  in read()
94 	resid = bcount;  in read()
98 		ccount = imin(f->f_ralen, resid);  in read()
103 			resid -= ccount;  in read()
104 			if (resid == 0) {  in read()
112 		if (f->f_rabuf == NULL || resid >= SOPEN_RASIZE) {  in read()
117 			errno = (f->f_ops->fo_read)(f, dest, resid, &cresid);  in read()
134 			return (bcount - resid);  in read()