Re: [RFC][PATCH 05/22] sched: SCHED_DEADLINE policy implementation

[Peter Zijlstra]

On Fri, 2010-10-29 at 08:30 +0200, Raistlin wrote:
> + * We are being explicitly informed that a new instance is starting,
> + * and this means that:
> + *  - the absolute deadline of the entity has to be placed at
> + *    current time + relative deadline;
> + *  - the runtime of the entity has to be set to the maximum value.

When exactly are we a new instance? From a quick look dl_new gets set
after a sched_setscheduler() call, is that the only way?

Could a task calling sched_setscheduler() on itself cheat the system?
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