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Two sets of tests are added to exercise the not _locked and _locked version of the kfuncs. For both tests, user space accesses xattr security.bpf.foo on a testfile. The BPF program is triggered by user space access (on LSM hook inode_[set|get]_xattr) and sets or removes xattr security.bpf.bar. Then user space then validates that xattr security.bpf.bar is set or removed as expected. Note that, in both tests, the BPF programs use the not _locked kfuncs. The verifier picks the proper kfuncs based on the calling context. Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20250130213549.3353349-6-song@kernel.org 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 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.