[Yaffs] YAFFS Data Integrity

Hello!


I have some questions about data integrity in the YAFFS. There is some where(such as Wikipedia) that represent:
"YAFFS is a robust log-structured file system that holds data integrity as a high priority."

But there is not any other explanation about it. How can we be sure about data integrity in the YAFFS?

What is the mechanism for it?(Is there any hash function or ... ?)

Is there any relation between log structure in the YAFFS and making data integrity?

Where does the data integrity related parts has been implemented in the YAFFS source code?



Thanks.