Mike Yuan
f26b2ec461
Currently, unit_setup_cgroup_runtime() is called in various _coldplug() functions if the unit is not inactive. That seems unnecessary though, and kinda defeats the purpose of CGroupRuntime. If we need to fork off a process for the unit or got something during deserialization, the CGroupRuntime would be automatically set up by unit_prepare_exec() / cgroup_runtime_deserialize_one(). Otherwise it would mean the cgroup doesn't exist and we don't need to allocate that in the first place. Plus, note that socket units might also carry a cgroup with ExecStartPre=/ExecStartPost=/... Hence the existing code is really inconsistent.
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