[starnix][cgroup] Move FsNodes to Directory and Hierarchy

Previously `Cgroup` owns its corresponding directory node and interface
nodes. Moved directory node to a newly-defined `Hierarchy` that is
owned by the filesystem, and moved interface nodes to `CgroupDirectory`.

This is part of the work to move `Cgroup` to starnix_core.

Bug: 388077431
Change-Id: I4def918518e72a4b21359b2c6c8608553fbaeee1
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1204265
Reviewed-by: Guocheng Wei <guochengwei@google.com>
Commit-Queue: David Song <wintermelons@google.com>
5 files changed
tree: 3b1b95c192c070b6a376bdf86fd1208910e5fcc8
  1. .helix/
  2. boards/
  3. build/
  4. bundles/
  5. docs/
  6. examples/
  7. infra/
  8. products/
  9. scripts/
  10. sdk/
  11. src/
  12. third_party/
  13. tools/
  14. zircon/
  15. .clang-format
  16. .clang-tidy
  17. .editorconfig
  18. .git-blame-ignore-revs
  19. .gitattributes
  20. .gitignore
  21. .gitmodules
  22. .gn
  23. .ignore
  24. analysis_options.yaml
  25. AUTHORS
  26. BUILD.gn
  27. CODE_OF_CONDUCT.md
  28. CONTRIBUTING.md
  29. fuchsia.code-workspace
  30. LICENSE
  31. OWNERS
  32. PATENTS
  33. pyproject.toml
  34. pyrightconfig.json
  35. README.md
  36. rustfmt.toml
  37. shac.star
  38. shac.textproto
README.md

Fuchsia

What is Fuchsia?

Fuchsia is an open source, general purpose operating system supporting modern 64-bit Intel and ARM processors.

We expect everyone interacting with our project to respect our code of conduct.

Read more about Fuchsia's principles.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See fuchsia.dev.