1 files changed, 14 insertions, 0 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 53d7f619a1b9..8bf0fa652eb6 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -42,6 +42,20 @@ config KPROBES
           for kernel debugging, non-intrusive instrumentation and testing.
           If in doubt, say "N".
 
+config JUMP_LABEL
+       bool "Optimize trace point call sites"
+       depends on HAVE_ARCH_JUMP_LABEL
+       help
+         If it is detected that the compiler has support for "asm goto",
+         the kernel will compile trace point locations with just a
+         nop instruction. When trace points are enabled, the nop will
+         be converted to a jump to the trace function. This technique
+         lowers overhead and stress on the branch prediction of the
+         processor.
+
+         On i386, options added to the compiler flags may increase
+         the size of the kernel slightly.
+
 config OPTPROBES
         def_bool y
         depends on KPROBES && HAVE_OPTPROBES