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Andrii Nakryiko says: ==================== Make libbpf more conservative in using BPF_F_MMAPABLE flag with internal BPF array maps that are backing global data sections. See patch #2 for full description and justification. Changes in this dataset support having bpf_spinlock, kptr, rb_tree nodes and other "special" variables as global variables. Combining this with libbpf's existing support for multiple custom .data.* sections allows BPF programs to utilize multiple spinlock/rbtree_node/kptr variables in a pretty natural way by just putting all such variables into separate data sections (and thus ARRAY maps). v1->v2: - address Stanislav's feedback, adds acks. ==================== Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.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.