s390/locking: Reenable optimistic spinning

[pandora-kernel.git] / arch / s390 / Kconfig

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index a3c40e8..aed3d91 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -119,6 +119,7 @@ config S390
        select ARCH_INLINE_WRITE_UNLOCK_BH
        select ARCH_INLINE_WRITE_UNLOCK_IRQ
        select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
+       select ARCH_SUPPORTS_ATOMIC_RMW
 
 config SCHED_OMIT_FRAME_POINTER
        def_bool y