nstree: introduce a unified tree

This will allow userspace to lookup and stat a namespace simply by its
identifier without having to know what type of namespace it is.

Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-13-2e6f823ebdc0@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Christian Brauner 2025-10-29 13:20:26 +01:00
commit 2ccaebc686
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3 changed files with 76 additions and 24 deletions