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The ns_cgroup is an annoying cgroup at the namespace / cgroup frontier and
leads to some problems:
* cgroup creation is out-of-control
* cgroup name can conflict when pids are looping
* it is not possible to have a single process handling a lot of
namespaces without falling in a exponential creation time
* we may want to create a namespace without creating a cgroup
The ns_cgroup was replaced by a compatibility flag 'clone_children',
where a newly created cgroup will copy the parent cgroup values.
The userspace has to manually create a cgroup and add a task to
the 'tasks' file.
This patch removes the ns_cgroup as suggested in the following thread:
https://lists.linux-foundation.org/pipermail/containers/2009-June/018616.html
The 'cgroup_clone' function is removed because it is no longer used.
This is a userspace-visible change. Commit
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|---|---|---|
| .. | ||
| 00-INDEX | ||
| blkio-controller.txt | ||
| cgroup_event_listener.c | ||
| cgroups.txt | ||
| cpuacct.txt | ||
| cpusets.txt | ||
| devices.txt | ||
| freezer-subsystem.txt | ||
| memcg_test.txt | ||
| memory.txt | ||
| resource_counter.txt | ||