From f212ce9083495b79e0d0c0b25605243aee81519f Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Tue, 29 Nov 2016 15:31:25 -0800
Subject: [PATCH] Use tracefs not debugfs

Test:   Device boots
	Can take photos
	Run "adb shell atrace -c -b 16000 -t 5 gfx" without root and check produces
	output
	Run "python systrace.py view gfx freq sched am wm dalvik
	binder_driver" from external/chromium-trace after adb root and
	check populated
Bug: 31856701
Change-Id: Ie4f8017d4ef37e12848b1e498e06ed2482752ab2
---
 rootdir/etc/init.qcom.rc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/rootdir/etc/init.qcom.rc b/rootdir/etc/init.qcom.rc
index 1f289ac..f8ca007 100644
--- a/rootdir/etc/init.qcom.rc
+++ b/rootdir/etc/init.qcom.rc
@@ -28,8 +28,9 @@
 import /init.mmi.rc
 
 on early-init
-    mount debugfs debugfs /sys/kernel/debug
-    chmod 0755 /sys/kernel/debug
+    mount tracefs tracefs /sys/kernel/tracing
+    chmod 0755 /sys/kernel/tracing
+    restorecon --recursive /sys/kernel/tracing
     mkdir /firmware 0771 system system
     mkdir /system 0777 root root
     symlink /data/tombstones /tombstones