On Tue, Apr 05, 2016 at 07:56:57PM +0200, luca abeni wrote: > > > + migrate_active = hrtimer_active(&p->dl.inactive_timer); > > > + if (migrate_active) > > > + sub_running_bw(&p->dl, &rq->dl); > > > + raw_spin_unlock(&rq->lock); > > > > At this point task_rq() is still the above rq, so if the inactive timer > > hits here it will lock this rq and subtract the running bw here _again_, > > right? > I think it will see the task state as TASK_RUNNING, so it will do nothing. > Or it will cancelled later when the task is enqueued... I'll double check > this.
Right, so this is select_task_rq_dl(), we run this in wakeups, before TASK_RUNNING.

