Re: RFC: radix tree safety

[Andrew Morton]

corbet@xxxxxxx (Jonathan Corbet) wrote:
>
> Andrew Morton <akpm@xxxxxxxx> wrote:
> 
> > I don't really see the need - if someone goes and overindexes the data
> > structure's capacity then they have a bug and hopefully that'll turn up in
> > testing and will get fixed.
> > 
> > Or am I missing something obvious which makes radix-trees particularly
> > dangerous or subtle??
> 
> There's nothing in the interface documentation which says that a tag is
> an index to anything.  It's an integer value which can be attached to an
> item in a radix tree.  One has to look into the source to see the
> limitation built into it.  
> 
> If we don't want the tests, fine, but it might make sense to fix the
> interface documentation, at least, to note that "tag" is not an
> arbitrary integer value.
> 

Sure, we can live with the runtime cost of a documentation fix ;)
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