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[ Upstream commit563bc2161b] When a task is enqueued and its parent cgroup se is already on_rq, this parent cgroup se will not be enqueued again, and hence the root->min_slice leaves unchanged. The same issue happens when a task is dequeued and its parent cgroup se has other runnable entities, and the parent cgroup se will not be dequeued. Force propagating min_slice when se doesn't need to be enqueued or dequeued. Ensure the se hierarchy always get the latest min_slice. Fixes:aef6987d89("sched/eevdf: Propagate min_slice up the cgroup hierarchy") Signed-off-by: Tianchen Ding <dtcccc@linux.alibaba.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20250211063659.7180-1-dtcccc@linux.alibaba.com Signed-off-by: Sasha Levin <sashal@kernel.org>