the linecount jump in the code-quality table was because KVM was merged into the x86 tree
under arch/x86/kvm/ and the lguest code was merged under arch/x86/lguest.
also, we've got a new sub-architecture, more debug features such as kgdb, etc. etc. - each of
which is extra code.
Since v2.6.24-rc1 (which was the first big unification step with 600 unification patches)
there were more than 1600 commits in arch/x86/. Every time we reduce size with a unification
some new feature eats it up ;-)
All in one: life didnt stop with unification :-)