From 545362f4627d43a3301cfeef283b30957e0e8c4b Mon Sep 17 00:00:00 2001
From: JP Abgrall <jpa@google.com>
Date: Mon, 24 Nov 2014 14:29:39 -0800
Subject: [PATCH] Remove journaling from read-only FS to save space

The read-only partitions don't need journaling.

Bug: 18430740
Change-Id: I93303aae534f02c6ae412323c9ebb0c0b7b35290
---
 releasetools.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/releasetools.py b/releasetools.py
index 4f1cba1..2239c51 100644
--- a/releasetools.py
+++ b/releasetools.py
@@ -15,6 +15,11 @@
 import common
 import struct
 
+def IncrementalOTA_InstallBegin(info):
+  info.script.Unmount("/system")
+  info.script.TunePartition("/system", "-O", "^has_journal")
+  info.script.Mount("/system")
+
 def FullOTA_PostValidate(info):
   # run e2fsck
   info.script.AppendExtra('run_program("/sbin/e2fsck", "-fy", "/dev/block/platform/msm_sdcc.1/by-name/system");');