Verify whether a user space program is informed through epoll with EPOLLHUP when a struct_ops object is detached. The BPF code in selftests/bpf/progs/struct_ops_module.c has become complex. Therefore, struct_ops_detach.c has been added to segregate the BPF code for detachment tests from the BPF code for other tests based on the recommendation of Andrii Nakryiko. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com> Link: https://lore.kernel.org/r/20240530065946.979330-6-thinker.li@gmail.com Signed-off-by: Martin KaFai Lau <martin.lau@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.
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