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authorQais Yousef <qais.yousef@arm.com>2020-03-02 13:27:20 +0000
committerIngo Molnar <mingo@kernel.org>2020-03-06 12:57:29 +0100
commitd94a9df49069ba8ff7c4aaeca1229e6471a01a15 (patch)
treee0a26defbc73d537e6835649b01585520cdeb568 /lib/test_memcat_p.c
parent98ca645f824301bde72e0a51cdc8bdbbea6774a5 (diff)
sched/rt: Remove unnecessary push for unfit tasks
In task_woken_rt() and switched_to_rto() we try trigger push-pull if the task is unfit. But the logic is found lacking because if the task was the only one running on the CPU, then rt_rq is not in overloaded state and won't trigger a push. The necessity of this logic was under a debate as well, a summary of the discussion can be found in the following thread: https://lore.kernel.org/lkml/20200226160247.iqvdakiqbakk2llz@e107158-lin.cambridge.arm.com/ Remove the logic for now until a better approach is agreed upon. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Fixes: 804d402fb6f6 ("sched/rt: Make RT capacity-aware") Link: https://lkml.kernel.org/r/20200302132721.8353-6-qais.yousef@arm.com
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