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652c1b17b8
Make internal perf_event_set_bpf_prog() use struct bpf_prog pointer as an input argument, which makes it easier to re-use for other internal uses (coming up for BPF link in the next patch). BPF program FD is not as convenient and in some cases it's not available. So switch to struct bpf_prog, move out refcounting outside and let caller do bpf_prog_put() in case of an error. This follows the approach of most of the other BPF internal functions. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210815070609.987780-4-andrii@kernel.org |
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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.