First of all, from me and all the other guys working hard on SCHED_DEADLINE, thanks to our Editor for his interest in our 'baby'! :-D
If this is allowed, just a couple of things and links:
* "a port to the realtime preemption tree"
This has been done, and its available at:
git://gitorious.org/sched_deadline/rt-deadline.git sched-dl
* "including less disruptive bandwidth throttling"
This has been already done as well, and it is again available in project's
repos:
git://gitorious.org/sched_deadline/linux-deadline.git sched-dl
git://gitorious.org/sched_deadline/rt-deadline.git sched-dl