Re: Finding hardlinks

[Mikulas Patocka]

> > 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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