tracing: use timestamp to determine start of latency traces

[safe/jmp/linux-2.6] / kernel / kmod.c

diff --git a/kernel/kmod.c b/kernel/kmod.c
index 385c31a..a922808 100644 (file)
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -37,6 +37,8 @@
 #include <linux/suspend.h>
 #include <asm/uaccess.h>
 
+#include <trace/events/module.h>
+
 extern int max_threads;
 
 static struct workqueue_struct *khelper_wq;
@@ -108,6 +110,8 @@ int __request_module(bool wait, const char *fmt, ...)
                return -ENOMEM;
        }
 
+       trace_module_request(module_name, wait, _RET_IP_);
+
        ret = call_usermodehelper(modprobe_path, argv, envp,
                        wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
        atomic_dec(&kmod_concurrent);