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9f61521c7a
Add a powerpc specific implementation of queued spinlocks. This is the build framework with a very simple (non-queued) spinlock implementation to begin with. Later changes add queueing, and other features and optimisations one-at-a-time. It is done this way to more easily see how the queued spinlocks are built, and to make performance and correctness bisects more useful. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Drop paravirt.h & processor.h changes to fix 32-bit build] [mpe: Fix 32-bit build of qspinlock.o & disallow GENERIC_LOCKBREAK per Nick] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/CONLLQB6DCJU.2ZPOS7T6S5GRR@bobo
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.