[gnome-software/1874-restart-update-no-longer-asks-for-confirmation] gs-common: Call sync() before invoking Reboot

[Milan Crha <mcrha src gnome org>]

commit cd065dcd100cadc6216eb38b0a235e0bd9d16ee2
Author: Milan Crha <mcrha redhat com>
Date:   Thu Sep 1 09:35:18 2022 +0200

    gs-common: Call sync() before invoking Reboot
    
    Make sure file buffers are written to the disk before invoking Reboot.

 src/gs-common.c | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/src/gs-common.c b/src/gs-common.c
index f9fbffd95..2263a043a 100644
--- a/src/gs-common.c
+++ b/src/gs-common.c
@@ -949,6 +949,9 @@ gs_utils_invoke_reboot_ready2_got_session_bus_cb (GObject *source_object,
 
        cancellable = g_task_get_cancellable (task);
 
+       /* Make sure file buffers are written to the disk before invoking reboot */
+       sync ();
+
        g_task_set_task_data (task, (gpointer) "org.gnome.SessionManager.Reboot", NULL);
        g_dbus_connection_call (bus,
                                "org.gnome.SessionManager",
@@ -1017,6 +1020,9 @@ gs_utils_invoke_reboot_ready1_got_session_bus_cb (GObject *source_object,
                return;
        }
 
+       /* Make sure file buffers are written to the disk before invoking reboot */
+       sync ();
+
        cancellable = g_task_get_cancellable (task);
 
        xdg_desktop = g_getenv ("XDG_CURRENT_DESKTOP");
@@ -1143,6 +1149,9 @@ gs_utils_invoke_reboot_got_system_bus_cb (GObject *source_object,
 
        cancellable = g_task_get_cancellable (task);
 
+       /* Make sure file buffers are written to the disk before invoking reboot */
+       sync ();
+
        g_dbus_connection_call (bus,
                                "org.freedesktop.login1",
                                "/org/freedesktop/login1",