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f3a2aebdd6
cgroup_get_from_file() currently fails with -EBADF if called on cgroup v1. However, the current implementation works on cgroup v1 as well, so the restriction is unnecessary. This enabled cgroup_get_from_fd() to work on cgroup v1, which would be the only thing stopping bpf cgroup_iter from supporting cgroup v1. Signed-off-by: Yosry Ahmed <yosryahmed@google.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Hao Luo <haoluo@google.com> Link: https://lore.kernel.org/r/20220805214821.1058337-3-haoluo@google.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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.
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.