[S390] topology: get rid of ifdefs

Remove all ifdefs from topology code and also only compile it for the
CONFIG_SCHED_BOOK case. The new code selects SCHED_MC if SCHED_BOOK is
selected. SCHED_MC without SCHED_BOOK is not possible anymore.
Furthermore various sysfs attributes are not available anymore for the
!SCHED_BOOK case. In particular all attributes that correspond to
CPU polarization.
But since all real world kernels have SCHED_BOOK selected anyway this
doesn't matter too much.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 8 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 373679b3744a..6b35b41a09ca 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -191,18 +191,13 @@ config HOTPLUG_CPU
           Say N if you want to disable CPU hotplug.
 
 config SCHED_MC
-        def_bool y
-        prompt "Multi-core scheduler support"
-        depends on SMP
-        help
-          Multi-core scheduler support improves the CPU scheduler's decision
-          making when dealing with multi-core CPU chips at a cost of slightly
-          increased overhead in some places.
+        def_bool n
 
 config SCHED_BOOK
         def_bool y
         prompt "Book scheduler support"
-        depends on SMP && SCHED_MC
+        depends on SMP
+        select SCHED_MC
         help
           Book scheduler support improves the CPU scheduler's decision making
           when dealing with machines that have several books.