2410 	unsigned zerofrom, offset, len;  in cont_expand_zero()  local
2417 		zerofrom = curpos & ~PAGE_MASK;  in cont_expand_zero()
2418 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2422 		len = PAGE_SIZE - zerofrom;  in cont_expand_zero()
2428 		zero_user(page, zerofrom, len);  in cont_expand_zero()
2446 		zerofrom = curpos & ~PAGE_MASK;  in cont_expand_zero()
2448 		if (offset <= zerofrom) {  in cont_expand_zero()
2451 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2455 		len = offset - zerofrom;  in cont_expand_zero()
2461 		zero_user(page, zerofrom, len);  in cont_expand_zero()
2484 	unsigned int zerofrom;  in cont_write_begin()  local
2491 	zerofrom = *bytes & ~PAGE_MASK;  in cont_write_begin()
2492 	if (pos+len > *bytes && zerofrom & (blocksize-1)) {  in cont_write_begin()