I would like to know what the file system implementors have to say about this technique.  Is their reaction “<i>Aargh, why would you do that, it wrecks all our optimizations!</i>” or is it “<i>Huh, OK, that’s kind of odd but I guess it would technically work</i>” or even “<i>Yes, finally someone who takes advantage of all our nice features like we always wanted!</i>”?