Lennart Poettering
52fecf20b9
Let's tweak when precisely to apply cgroup attributes on the root cgroup. With this we now follow the following rules: 1. On cgroupsv2 we never apply any regular cgroups to the host root, since the attributes generally do not exist there. 2. On cgroupsv1 we do not apply any "weight" or "shares" style attributes to the host root cgroup, since they don't make much sense on the top level where there's only one group, hence no need to compare weights against each other. The other attributes are applied to the host root cgroup however. 3. In any case we don't apply attributes to the root of container environments (and --user roots), under the assumption that this is managed by the manager further up. (Note that on cgroupsv2 this is even enforced by the kernel) 4. BPF pseudo-attributes are applied in all cases (since we can have as many of them as we want)
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