From 56c2eaad923aa5dd9be2dec033ecfd445e3d51af Mon Sep 17 00:00:00 2001
From: Howard Chen <howardsoc@google.com>
Date: Fri, 25 Dec 2020 17:32:20 +0800
Subject: Create the backing file for the PersistentDataBlock

In order to support the test harness mode in DSU. A copy-on-write
mechanism is added to the system server to protect the on-device
PersistentDataBlock from any modification. When running a DSU, all
write operations are redirected to a backing file. This CL creates
the backing file with rc file to get the correct se file label.

Bug: 175852148
Test: gsi_tool install

Change-Id: I739e28a4cbc36330e1ba39de0e8b7d5a111617f7
---
 gsid.rc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gsid.rc b/gsid.rc
index 6b9663f..a5d6dd3 100644
--- a/gsid.rc
+++ b/gsid.rc
@@ -12,6 +12,8 @@ on post-fs
     mkdir /metadata/gsi/remount 0771 root system
 
 on post-fs-data
+    write /data/gsi_persistent_data 0
+    chown system system /data/gsi_persistent_data
     mkdir /data/gsi 0700 root root encryption=None
     mkdir /data/gsi/dsu 0700 root root
     mkdir /data/gsi/ota 0700 root root
-- 
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