Its actually something thats quite hard to do right because of the
discovery by creation problem. That requires two people have different
files with the same name. Then a third person who can see both comes
along - what do they see. And more interestingly what the hell goes in
the dcache :)
[the discovery by creation problem]
A directory fred exists you cannot see
You do
mkdir fred
do you
a) return -EEXIST revealing the invisible space
b) create another fred
if b) what does a user with rights to see both now have to watch.
Alan
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