[PATCH 18/27] sched: Update nohz rq clock before searching busiest group on load balancing

While load balancing an rq target, we look for the busiest group. This operation may require an uptodate rq clock if we end up calling scale_rt_power(). To this end, update it manually if the target is running tickless. DOUBT: don't we actually also need this in vanilla kernel, in case this_cpu

[PATCH 18/27] sched: Update nohz rq clock before searching busiest group on load balancing

While load balancing an rq target, we look for the busiest group. This operation may require an uptodate rq clock if we end up calling scale_rt_power(). To this end, update it manually if the target is running tickless. DOUBT: don't we actually also need this in vanilla kernel, in case this_cpu