[S390] mutex: enable spinning mutex on s390

This enables the spinning mutex feature on s390 by removing
HAVE_DEFAULT_NO_SPIN_MUTEXES from arch/s390/Kconfig.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c05d081..ff19efd 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -73,7 +73,6 @@ config S390
        select HAVE_DYNAMIC_FTRACE
        select HAVE_FUNCTION_GRAPH_TRACER
        select HAVE_REGS_AND_STACK_ACCESS_API
-       select HAVE_DEFAULT_NO_SPIN_MUTEXES
        select HAVE_OPROFILE
        select HAVE_KPROBES
        select HAVE_KRETPROBES