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Kumar Kartikeya Dwivedi
a8fcf2a39b
In preparation for introducing a new lock implementation, Resilient Queued Spin Lock, or rqspinlock, we first begin our modifications by using the existing qspinlock.c code as the base. Simply copy the code to a new file and rename functions and variables from 'queued' to 'resilient_queued'. Since we place the file in kernel/bpf, include needs to be relative. This helps each subsequent commit in clearly showing how and where the code is being changed. The only change after a literal copy in this commit is renaming the functions where necessary, and rename qnodes to rqnodes. Let's also use EXPORT_SYMBOL_GPL for rqspinlock slowpath. Reviewed-by: Barret Rhoden <brho@google.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-5-memxor@gmail.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 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.