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18a45f12d7
ARM64 bpf jit satisfies the following two conditions: 1) support BPF_XCHG() on pointer-sized word. 2) the implementation of xchg is the same as atomic_xchg() on pointer-sized words. Both of these two functions use arch_xchg() to implement the exchange. So enable the inline of bpf_kptr_xchg() for arm64 bpf jit. Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20240119102529.99581-2-houtao@huaweicloud.com 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 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.