> One could avoid this, but it would mean designing the whole filesystem in a
> completely different way -- merge all directories to a single gigantic
> hash table and use (directory ID,file name) as a key, but we were originally
> talking about extending ext2, so such massive changes are out of question
> and your log n access argument is right.
s/hash table/btree/ and you have just described the Macintosh HFS file
system. (Incidentally, it stores file extent indices in a similar manner,
with key = (file id, fork, offset).)
MfG Kai
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