Re: [rfc] Near-constant time directory index for Ext2
Felix von Leitner (leitner@convergence.de)
Fri, 23 Feb 2001 01:59:18 +0100
Thus spake Alan Cox (alan@lxorguk.ukuu.org.uk):
> > > There will be a lot fewer metadata index
> > > blocks in your directory file, for one thing.
> > Oh yes, another thing: a B-tree directory structure does not need
> > metadata index blocks.
> Before people get excited about complex tree directory indexes, remember to
> solve the other 95% before implementation - recovering from lost blocks,
> corruption and the like
And don't forget the trouble with NFS handles after the tree was rebalanced.
Trees are nice only theoretically. In practice, the benefits are
outweighed by the nastiness in form of fsck and NFS and bigger code
(normally: more complex -> less reliable).
Felix
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/