This sounds like a bug to me. It seems like we should have a one to one
correspondence of filehandle -> inode. In what situations would this not be the
case?
Well, the NFS protocol allows that [see rfc1813, p. 21: "If two file handles from
the same server are equal, they must refer to the same file, but if they are not
equal, no conclusions can be drawn."]
As an example, some file systems encode hint information into the filehandle
and the hints may change over time, another example is encoding parent
information into the filehandle and then handles representing hard links
to the same file from different directories will differ.
BTW. how does (or how should?) NFS client deal with cache coherency if
filehandles for the same file differ?
Mikulas
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