On Thursday August 10, uszhaoxin@xxxxxxxxx wrote: > Many thanks for your kind help! > > Your answer is what I expected. But what frustrated me is that I > cannot find the code that verifies the generation number in NFS V3 > codes. Do you know where it check the generation number? NFSD doesn't. The individual filesystem does. You need to look in the filesystem code. Some filesystems use common code from fs/exportfs/expfs.c See "export_iget". NeilBrown. - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html