Ext3 I believe so, Reiserfs I would assume so but Hans can answer
definitively
Reiserfs does not, nor are creates or unlink operations synchronous.
For MTAs it just happens to work: if you fsync the way transactions
are written means the metadata for the dirtectories is written as part
of the transaction --- but I think this is a quirk and not by design?
Chris?
--cw
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