tracing/fastboot: only trace non-module initcalls
At this time, only built-in initcalls interest us.
We can't really produce a relevant graph if we include
the modules initcall too.
I had good results after this patch (see svg in attachment).
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index ed53265..5812dba 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -225,9 +225,11 @@
#ifdef CONFIG_BOOT_TRACER
extern void trace_boot(struct boot_trace *it, initcall_t fn);
extern void start_boot_trace(void);
+extern void stop_boot_trace(void);
#else
static inline void trace_boot(struct boot_trace *it, initcall_t fn) { }
static inline void start_boot_trace(void) { }
+static inline void stop_boot_trace(void) { }
#endif