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03de843bd0
Kuniyuki Iwashima says: ==================== bpf: Allow opt-out from sk->sk_prot->memory_allocated. This series allows opting out of the global per-protocol memory accounting if socket is configured as such by sysctl or BPF prog. This series is the successor of the series below [0], but the changes now fall in net and bpf subsystems only. I discussed with Roman Gushchin offlist, and he suggested not mixing two independent subsystems and it would be cleaner not to depend on memcg. So, sk->sk_memcg and memcg code are no longer touched, and instead we use another hole near sk->sk_prot to store a flag for the pure net opt-out feature. Overview of the series: patch 1 is misc cleanup patch 2 allows opt-out from sk->sk_prot->memory_allocated patch 3 introduces net.core.bypass_prot_mem patch 4 & 5 supports flagging sk->sk_bypass_prot_mem via bpf_setsockopt() patch 6 is selftest Thank you very much for all your help, Shakeel, Roman, Martin, and Eric! [0]: https://lore.kernel.org/bpf/20250920000751.2091731-1-kuniyu@google.com/ Changes: v2: * Patch 2: * Fill kdoc for skc_bypass_prot_mem * Patch 6 * Fix server fd leak in tcp_create_sockets() * Avoid close(0) in check_bypass() v1: https://lore.kernel.org/bpf/20251007001120.2661442-1-kuniyu@google.com/ ==================== Link: https://patch.msgid.link/20251014235604.3057003-1-kuniyu@google.com Signed-off-by: Martin KaFai Lau <martin.lau@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 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.