2344 	unsigned zerofrom, offset, len;  in cont_expand_zero()  local
2351 		zerofrom = curpos & ~PAGE_CACHE_MASK;  in cont_expand_zero()
2352 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2356 		len = PAGE_CACHE_SIZE - zerofrom;  in cont_expand_zero()
2363 		zero_user(page, zerofrom, len);  in cont_expand_zero()
2376 		zerofrom = curpos & ~PAGE_CACHE_MASK;  in cont_expand_zero()
2378 		if (offset <= zerofrom) {  in cont_expand_zero()
2381 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2385 		len = offset - zerofrom;  in cont_expand_zero()
2392 		zero_user(page, zerofrom, len);  in cont_expand_zero()
2415 	unsigned zerofrom;  in cont_write_begin()  local
2422 	zerofrom = *bytes & ~PAGE_CACHE_MASK;  in cont_write_begin()
2423 	if (pos+len > *bytes && zerofrom & (blocksize-1)) {  in cont_write_begin()