> How about determining which one to use at boot time? That way there's no
> overhead, and there's no need to have yet another config option which probably
> doesn't need to be there.
As far as I can see there will still be some extra overhead. We'd need an extra
conditional that wouldn't be there with the config option. Granted, one
conditional shouldn't be too expensive, especially since we'll always be picking
the same branch.
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