1 files changed, 16 insertions, 0 deletions

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index d986216c8327..a604f24c755f 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -159,6 +159,22 @@ config BOOT_TRACER
             selected, because the self-tests are an initcall as well and that
             would invalidate the boot trace. )
 
+config TRACE_UNLIKELY_PROFILE
+        bool "Trace likely/unlikely profiler"
+        depends on DEBUG_KERNEL
+        select TRACING
+        help
+          This tracer profiles all the the likely and unlikely macros
+          in the kernel. It will display the results in:
+
+          /debugfs/tracing/profile_likely
+          /debugfs/tracing/profile_unlikely
+
+          Note: this will add a significant overhead, only turn this
+          on if you need to profile the system's use of these macros.
+
+          Say N if unsure.
+
 config STACK_TRACER
         bool "Trace max stack"
         depends on HAVE_FUNCTION_TRACER