Hi mo,
the reference-count semantics are immensely useful, but not without
cost. it complicates the design of NFS no small amount and is why
hard links cannot cross demountable volumes. however, doing without
those semantics is very difficult to imagine.
What you say is true, but it may be of interest that Bell Labs dropped
the link count IIRC in Plan 9, Unix's successor.
http://plan9.bell-labs.com/magic/man2html/2/stat
Cheers,
Ralph.
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