I just finished a first pass at a rebase to 3.1 for f15.
I'm commit this and push it out when 3.1.1 lands upstream.
(Hopefully next week)
Those of you with commit access, unless there's something urgent
(ie, a security bug), don't bother committing anything to f15/,
as no further 2.6.40 builds will go out unless absolutely necessary.