* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel:
sched: don't allow rt_runtime_us to be zero for groups having rt tasks
sched: rt-group: fixup schedulability constraints calculation
sched: fix the wrong time slice value for SCHED_FIFO tasks
sched: export task_nice
sched: balance RT task resched only on runqueue
sched: retain vruntime