2508 	unsigned zerofrom, offset, len;  in cont_expand_zero()  local
2515 		zerofrom = curpos & ~PAGE_MASK;  in cont_expand_zero()
2516 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2520 		len = PAGE_SIZE - zerofrom;  in cont_expand_zero()
2544 		zerofrom = curpos & ~PAGE_MASK;  in cont_expand_zero()
2546 		if (offset <= zerofrom) {  in cont_expand_zero()
2549 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2553 		len = offset - zerofrom;  in cont_expand_zero()
2581 	unsigned int zerofrom;  in cont_write_begin()  local
2588 	zerofrom = *bytes & ~PAGE_MASK;  in cont_write_begin()
2589 	if (pos+len > *bytes && zerofrom & (blocksize-1)) {  in cont_write_begin()