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The per-CPU flush lists, which are accessed from within the NAPI callback (xdp_do_flush() for instance), are per-CPU. There are subject to the same problem as struct bpf_redirect_info. Add the per-CPU lists cpu_map_flush_list, dev_map_flush_list and xskmap_map_flush_list to struct bpf_net_context. Add wrappers for the access. The lists initialized on first usage (similar to bpf_net_ctx_get_ri()). Cc: "Björn Töpel" <bjorn@kernel.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Hao Luo <haoluo@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Fastabend <john.fastabend@gmail.com> Cc: Jonathan Lemon <jonathan.lemon@gmail.com> Cc: KP Singh <kpsingh@kernel.org> Cc: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Cc: Magnus Karlsson <magnus.karlsson@intel.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Song Liu <song@kernel.org> Cc: Stanislav Fomichev <sdf@google.com> Cc: Yonghong Song <yonghong.song@linux.dev> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://patch.msgid.link/20240620132727.660738-16-bigeasy@linutronix.de Signed-off-by: Jakub Kicinski <kuba@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 reStructuredText 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.