1 files changed, 3 insertions, 2 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 156822e3cc79..80598cfd728c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -32,7 +32,7 @@ config MAGIC_SYSRQ
 config LOG_BUF_SHIFT
         int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL
         range 12 21
-        default 17 if ARCH_S390
+        default 17 if S390
         default 16 if X86_NUMAQ || IA64
         default 15 if SMP
         default 14
@@ -172,7 +172,8 @@ config DEBUG_VM
         bool "Debug VM"
         depends on DEBUG_KERNEL
         help
-          Enable this to debug the virtual-memory system.
+          Enable this to turn on extended checks in the virtual-memory system
+          that may impact performance.
 
           If unsure, say N.