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authorPaul Turner <pjt@google.com>2011-07-21 09:43:33 -0700
committerIngo Molnar <mingo@elte.hu>2011-08-14 12:03:34 +0200
commit85dac906bec3bb41bfaa7ccaa65c4706de5cfdf8 (patch)
tree5d3f71d409fe002b0dfd2cdfb7ef09a9d5851f66 /arch/um/sys-i386/shared
parenta9cf55b2861057a213e610da2fec52125439a11d (diff)
sched: Add support for throttling group entities
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.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
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