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f7bd2be766
Now that Zacas is supported in the kernel, let's use the double word atomic version of amocas to improve the SLUB allocator. Note that we have to select fixed registers, otherwise gcc fails to pick even registers and then produces a reserved encoding which fails to assemble. Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Andrea Parri <parri.andrea@gmail.com> Link: https://lore.kernel.org/r/20241103145153.105097-8-alexghiti@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>