1397 	size_t amt, nr;  in source()  local
1465 			amt = bp->cnt;  in source()
1466 			if (i + (off_t)amt > stb.st_size)  in source()
1467 				amt = stb.st_size - i;  in source()
1470 				    bp->buf, amt)) != amt) {  in source()
1472 					memset(bp->buf + nr, 0, amt - nr);  in source()
1477 				(void)atomicio(vwrite, remout, bp->buf, amt);  in source()
1478 				memset(bp->buf, 0, amt);  in source()
1481 			if (atomicio6(vwrite, remout, bp->buf, amt, scpio,  in source()
1482 			    &statbytes) != amt)  in source()
1668 	int amt, exists, first, ofd;  local
1899 			amt = bp->cnt;
1900 			if (i + amt > size)
1901 				amt = size - i;
1902 			count += amt;
1904 				j = atomicio6(read, remin, cp, amt,
1912 				amt -= j;
1914 			} while (amt > 0);