60c728adf7e716ca23e2d300d3955c60265a28c6
Before this patch, the bpf cgroup realization state was implicitly set to "NO", meaning that the bpf configuration was realized but was turned off. That means invalidation requests for the bpf stuff (which we issue in blanket fashion when doing a daemon reload) would actually later result in a us re-realizing the unit, under the assumption it was already realized once, even though in reality it never was realized before. This had the effect that after each daemon-reload we'd end up realizing *all* defined units, even the unloaded ones, populating cgroupfs with lots of unneeded empty cgroups. With this fix we properly set the realiazation state to "INVALIDATED", i.e. indicating the bpf stuff was never set up for the unit, and hence when we try to invalidate it later we won't do anything.
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