[S390] mutex: Introduce arch_mutex_cpu_relax()

[cascardo/linux.git] / arch / s390 / Kconfig

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 3243f7a..c05d081 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -87,6 +87,7 @@ config S390
        select HAVE_KERNEL_LZMA
        select HAVE_KERNEL_LZO
        select HAVE_GET_USER_PAGES_FAST
+       select HAVE_ARCH_MUTEX_CPU_RELAX
        select ARCH_INLINE_SPIN_TRYLOCK
        select ARCH_INLINE_SPIN_TRYLOCK_BH
        select ARCH_INLINE_SPIN_LOCK