Eric Schrock <> wrote:

> The decision to not support link(2) of directories was very deliberate - it
> is an abomination that never should have been allowed in the first place.
> My guess is that the behavior of unlink(2) on directories is a direct
> side-effect of that (if link isn't supported, then why support unlink?).
> Also worth noting that ZFS also doesn't let you open(2) directories and
> read(2) from them, something (I believe) UFS does allow.

Link/unlink on directories is not a property of UFS.

UFS has been designed without that feature, but it has been added by AT&T with 


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