Another possible thing to do (instead) would be to look at Coda, and consider something like porting Coda to use FUSE instead of a homegrown (pre-FUSE, to be fair) kernel module. A bigger challenge is to separate the write-back caching from the upstream server protocol, so that one could use something coda-like over a connected-mode-only remote filesystem. But that probably doesn't fit in a bachelor's thesis.
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