From d9a7823c54a36d7bec61dc5ed2921789da371fcf Mon Sep 17 00:00:00 2001
From: Alessandro Astone <ales.astone@gmail.com>
Date: Thu, 19 Jan 2023 19:11:00 +0100
Subject: [PATCH] mount: Only disable overlayfs xino on kernels that support it

---
 tools/actions/upgrader.py | 4 +---
 tools/helpers/__init__.py | 1 +
 tools/helpers/mount.py    | 6 +++++-
 tools/helpers/version.py  | 7 +++++++
 4 files changed, 14 insertions(+), 4 deletions(-)
 create mode 100644 tools/helpers/version.py

diff --git a/tools/actions/upgrader.py b/tools/actions/upgrader.py
index 3a0dcba..dcd033d 100644
--- a/tools/actions/upgrader.py
+++ b/tools/actions/upgrader.py
@@ -3,6 +3,7 @@
 import logging
 import os
 from tools import helpers
+from tools.helpers.version import versiontuple
 import tools.config
 import dbus
 
@@ -16,9 +17,6 @@ def get_config(args):
     args.session = None
 
 def migration(args):
-    def versiontuple(v):
-        return tuple(map(int, (v.split("."))))
-
     try:
         old_ver = tools.helpers.props.file_get(args, args.work + "/waydroid_base.prop", "waydroid.tools_version")
         if versiontuple(old_ver) <= versiontuple("1.3.4"):
diff --git a/tools/helpers/__init__.py b/tools/helpers/__init__.py
index e906e9c..9b62d06 100644
--- a/tools/helpers/__init__.py
+++ b/tools/helpers/__init__.py
@@ -11,3 +11,4 @@ import tools.helpers.http
 import tools.helpers.ipc
 import tools.helpers.gpu
 import tools.helpers.protocol
+import tools.helpers.version
diff --git a/tools/helpers/mount.py b/tools/helpers/mount.py
index a0d34be..236ff5b 100644
--- a/tools/helpers/mount.py
+++ b/tools/helpers/mount.py
@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 import os
 import tools.helpers.run
+from tools.helpers.version import versiontuple, kernel_version
 
 
 def ismount(folder):
@@ -156,7 +157,7 @@ def mount_overlay(args, lower_dirs, destination, upper_dir=None, work_dir=None,
     Mount an overlay.
     """
     dirs = [*lower_dirs]
-    options = ["xino=off", "lowerdir=" + (":".join(lower_dirs))]
+    options = ["lowerdir=" + (":".join(lower_dirs))]
 
     if upper_dir:
         dirs.append(upper_dir)
@@ -164,6 +165,9 @@ def mount_overlay(args, lower_dirs, destination, upper_dir=None, work_dir=None,
         options.append("upperdir=" + upper_dir)
         options.append("workdir=" + work_dir)
 
+    if kernel_version() >= versiontuple("4.17"):
+        options.append("xino=off")
+
     for dir_path in dirs:
         if not os.path.exists(dir_path):
             if create_folders:
diff --git a/tools/helpers/version.py b/tools/helpers/version.py
new file mode 100644
index 0000000..d8ae449
--- /dev/null
+++ b/tools/helpers/version.py
@@ -0,0 +1,7 @@
+import os
+
+def versiontuple(v):
+    return tuple(map(int, (v.split("."))))
+
+def kernel_version():
+    return tuple(map(int, os.uname().release.split(".", 2)[:2]))
-- 
2.47.3