Workaround: do not set rq->skip_clock_update

Disabling the clock update seems to be causing problems even in normal
Linux, and causes major bugs under LITMUS^RT. As a workaround, just
disable this "optimization" for now.

Details: the idle load balancer causes tasks that suspsend to be
marked with set_tsk_need_resched(). When such a task resumes, it may
wrongly trigger the setting of skip_clock_update. However, a
corresponding rescheduling event may not happen immediately, such that
the currently-scheduled task is no longer charged for its execution
time.

0 files changed, 0 insertions, 0 deletions