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    SubjectRe: [rfc] Near-constant time directory index for Ext2
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    H. Peter Anvin wrote:
    > Martin Mares wrote:
    > >
    > > Hello!
    > >
    > > > True. Note too, though, that on a filesystem (which we are, after all,
    > > > talking about), if you assume a large linear space you have to create a
    > > > file, which means you need to multiply the cost of all random-access
    > > > operations with O(log n).
    > >
    > > 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,

    Novell, NTFS, HFS all do this.

    Roger.

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