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99cacdc6f6
Andrey Ignatov says: ==================== v3->v4: - use OPTS_VALID and OPTS_GET to handle bpf_prog_attach_opts. v2->v3: - rely on DECLARE_LIBBPF_OPTS from libbpf_common.h; - separate "required" and "optional" arguments in bpf_prog_attach_xattr; - convert test_cgroup_attach to prog_tests; - move the new selftest to prog_tests/cgroup_attach_multi. v1->v2: - move DECLARE_LIBBPF_OPTS from libbpf.h to bpf.h (patch 4); - switch new libbpf API to OPTS framework; - switch selftest to libbpf OPTS framework. This patch set adds support for replacing cgroup-bpf programs attached with BPF_F_ALLOW_MULTI flag so that any program in a list can be updated to a new version without service interruption and order of programs can be preserved. Please see patch 3 for details on the use-case and API changes. Other patches: Patch 1 is preliminary refactoring of __cgroup_bpf_attach to simplify it. Patch 2 is minor cleanup of hierarchy_allows_attach. Patch 4 extends libbpf API to support new set of attach attributes. Patch 5 converts test_cgroup_attach to prog_tests. Patch 6 adds selftest coverage for the new API. ==================== Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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| README | ||
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.