2 files changed, 6 insertions, 13 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 5f5c29269fb1..8116a3328a19 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -241,19 +241,17 @@ config PACK_STACK
           Say Y if you are unsure.
 
 config SMALL_STACK
-        bool "Use 4kb/8kb for kernel stack instead of 8kb/16kb"
-        depends on PACK_STACK && !LOCKDEP
+        bool "Use 8kb for kernel stack instead of 16kb"
+        depends on PACK_STACK && 64BIT && !LOCKDEP
         help
           If you say Y here and the compiler supports the -mkernel-backchain
-          option the kernel will use a smaller kernel stack size. For 31 bit
-          the reduced size is 4kb instead of 8kb and for 64 bit it is 8kb
-          instead of 16kb. This allows to run more thread on a system and
-          reduces the pressure on the memory management for higher order
-          page allocations.
+          option the kernel will use a smaller kernel stack size. The reduced
+          size is 8kb instead of 16kb. This allows to run more threads on a
+          system and reduces the pressure on the memory management for higher
+          order page allocations.
 
           Say N if you are unsure.
 
-
 config CHECK_STACK
         bool "Detect kernel stack overflow"
         help
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index de3fad60c682..c1eaf9604da7 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -15,13 +15,8 @@
  * Size of kernel stack for each process
  */
 #ifndef __s390x__
-#ifndef __SMALL_STACK
 #define THREAD_ORDER 1
 #define ASYNC_ORDER  1
-#else
-#define THREAD_ORDER 0
-#define ASYNC_ORDER  0
-#endif
 #else /* __s390x__ */
 #ifndef __SMALL_STACK
 #define THREAD_ORDER 2