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b3c8064ccc
Introduce RISCV_FULL_BARRIER and use in arch_atomic* function. like RISCV_ACQUIRE_BARRIER and RISCV_RELEASE_BARRIER, the fence instruction can be eliminated When SMP is not enabled. Signed-off-by: Eric Chan <ericchancf@google.com> Reviewed-by: Andrea Parri <parri.andrea@gmail.com> Reviewed-by: Samuel Holland <samuel.holland@sifive.com> Tested-by: Samuel Holland <samuel.holland@sifive.com> Link: https://lore.kernel.org/r/20240217131302.3668481-1-ericchancf@google.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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.