So many people were trying to guess the correct code name for the AMD's coming Barcelona processor. INQ (and later those fanbois Sharikou, Scientia and alikes) wished to call it K10. Well, it is not K10.
Guess what, K10 is still under development, so it can't be K10. K9 is just a bad name.
Again, Barcelona's code name 'is not' K10, period.
p/s: K8L is more likely referring to Barcelona