locking/mutex: Disable optimistic spinning on some architectures

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / powerpc / Kconfig

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2156fa2..ee3c660 100644 (file)
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -141,6 +141,7 @@ config PPC
        select HAVE_DEBUG_STACKOVERFLOW
        select HAVE_IRQ_EXIT_ON_IRQ_STACK
        select ARCH_USE_CMPXCHG_LOCKREF if PPC64
+       select ARCH_SUPPORTS_ATOMIC_RMW
 
 config GENERIC_CSUM
        def_bool CPU_LITTLE_ENDIAN