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Paul Turner authored
Now that consumption is tracked (via update_curr()) we add support to throttle group entities (and their corresponding cfs_rqs) in the case where this is no run-time remaining. Throttled entities are dequeued to prevent scheduling, additionally we mark them as throttled (using cfs_rq->throttled) to prevent them from becoming re-enqueued until they are unthrottled. A list of a task_group's throttled entities are maintained on the cfs_bandwidth structure. Note: While the machinery for throttling is added in this patch the act of throttling an entity exceeding its bandwidth is deferred until later within the series. Signed-off-by: Paul Turner <pjt@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20110721184757.480608533@google.comSigned-off-by: Ingo Molnar <mingo@elte.hu>
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