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Andrey Ignatov says: ==================== This patch set adds new BPF helper bpf_skb_ancestor_cgroup_id that returns id of cgroup v2 that is ancestor of cgroup associated with the skb at the ancestor_level. The helper is useful to implement policies in TC based on cgroups that are upper in hierarchy than immediate cgroup associated with skb. v1->v2: - more reliable check for testing IPv6 to become ready in selftest. ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.