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authorHeiko Carstens <heiko.carstens@de.ibm.com>2011-12-27 11:27:09 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-12-27 11:27:10 +0100
commit83a24e32908476c33ea9abc132c73020e2cd3620 (patch)
treecd1857a48ce2995dc5d2ab6c0950622120137bb4 /arch/s390/Kconfig
parent3931723f36165e137c67b8c62346024a6c4f223d (diff)
downloadop-kernel-dev-83a24e32908476c33ea9abc132c73020e2cd3620.zip
op-kernel-dev-83a24e32908476c33ea9abc132c73020e2cd3620.tar.gz
[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>
Diffstat (limited to 'arch/s390/Kconfig')
-rw-r--r--arch/s390/Kconfig11
1 files changed, 3 insertions, 8 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 373679b..6b35b41 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.
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