help about inode hook
 

Hi how to use inode hook functions(inode_alloc_security and inode_free_security)?

You go out to Google, put in "linux inode hook functions", and read the many pages that come up. There's about 15,000:

http://www.nsa.gov/research/_files/s...ule/x970.shtml
http://www.usenix.org/events/sec02/f...tml/node7.html