From cf57a6c3716476e87adeb6ac0afe837fc0afca00 Mon Sep 17 00:00:00 2001
From: xuzhenhai <xuzhenhai>
Date: Thu, 27 Jun 2024 16:18:44 +0800
Subject: [PATCH] tracer_init_tracefs in thread to speed up kernel start init
 time

Change-Id: I64be3c9ad290734861359a5c3cc514aa48d65918
---
 linux-5.10/rk3568_patch/kernel.patch | 31 ++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/linux-5.10/rk3568_patch/kernel.patch b/linux-5.10/rk3568_patch/kernel.patch
index 844df91..afd3e84 100755
--- a/linux-5.10/rk3568_patch/kernel.patch
+++ b/linux-5.10/rk3568_patch/kernel.patch
@@ -1799989,3 +1799989,34 @@ index 1f44a29818bf..51574379ff91 100644
  };
  
  #define STR_INTERFACE "AIO Test"
+diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
+index 89a8bb8e2..70cd26e8b 100644
+--- a/kernel/trace/trace.c
++++ b/kernel/trace/trace.c
+@@ -9401,7 +9401,7 @@ static struct notifier_block trace_module_nb = {
+ };
+ #endif /* CONFIG_MODULES */
+ 
+-static __init int tracer_init_tracefs(void)
++static int tracefs_init(void * data)
+ {
+ 	int ret;
+ 
+@@ -9451,6 +9451,17 @@ static __init int tracer_init_tracefs(void)
+ 	return 0;
+ }
+ 
++static __init int tracer_init_tracefs(void)
++{
++	struct task_struct *thread;
++
++	thread = kthread_run(tracefs_init, NULL, "tracefs_init");
++	if (IS_ERR(thread))
++		return PTR_ERR(thread);
++
++	return 0;
++}
++
+ static int trace_panic_handler(struct notifier_block *this,
+ 			       unsigned long event, void *unused)
+ {
-- 
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