locking/mutex: Disable optimistic spinning on some architectures

[pandora-kernel.git] / arch / powerpc / Kconfig

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 951e18f..bec952d 100644 (file)
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -137,6 +137,7 @@ config PPC
        select HAVE_BPF_JIT if (PPC64 && NET)
        select HAVE_ARCH_JUMP_LABEL
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
+       select ARCH_SUPPORTS_ATOMIC_RMW
 
 config EARLY_PRINTK
        bool
@@ -937,6 +938,7 @@ config RELOCATABLE
          must live at a different physical address than the primary
          kernel.
 
+# This value must have zeroes in the bottom 60 bits otherwise lots will break
 config PAGE_OFFSET
        hex
        default "0xc000000000000000"