init, tracing: instrument security and console initcall trace events

Trace events have been added around the initcall functions defined in
init/main.c. But console and security have their own initcalls. This adds
the trace events associated for those initcall functions.

Link: http://lkml.kernel.org/r/1521765208.19745.2.camel@polymtl.ca
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Abderrahmane Benbachir <abderrahmane.benbachir@polymtl.ca>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index f274fbe..cb5b353 100644 (file)
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -52,6 +52,7 @@
 #include <linux/uaccess.h>
 #include <asm/sections.h>
 
+#include <trace/events/initcall.h>
 #define CREATE_TRACE_POINTS
 #include <trace/events/printk.h>
 
@@ -2781,6 +2782,7 @@ EXPORT_SYMBOL(unregister_console);
  */
 void __init console_init(void)
 {
+       int ret;
        initcall_t *call;
 
        /* Setup the default TTY line discipline. */
@@ -2791,8 +2793,11 @@ void __init console_init(void)
         * inform about problems etc..
         */
        call = __con_initcall_start;
+       trace_initcall_level("console");
        while (call < __con_initcall_end) {
-               (*call)();
+               trace_initcall_start((*call));
+               ret = (*call)();
+               trace_initcall_finish((*call), ret);
                call++;
        }
 }

diff --git a/security/security.c b/security/security.c
index 1cd8526..987afe3 100644 (file)
--- a/security/security.c
+++ b/security/security.c
@@ -30,6 +30,8 @@
 #include <linux/string.h>
 #include <net/flow.h>
 
+#include <trace/events/initcall.h>
+
 #define MAX_LSM_EVM_XATTR      2
 
 /* Maximum number of letters for an LSM name string */
@@ -45,10 +47,14 @@ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
 
 static void __init do_security_initcalls(void)
 {
+       int ret;
        initcall_t *call;
        call = __security_initcall_start;
+       trace_initcall_level("security");
        while (call < __security_initcall_end) {
-               (*call) ();
+               trace_initcall_start((*call));
+               ret = (*call) ();
+               trace_initcall_finish((*call), ret);
                call++;
        }
 }