udiskslinuxdriveobject: Update object interfaces on NVMe subsystem uevent

Update block and drive object interfaces on an incoming NVMe subsystem
uevent. This allows to properly reflect the state of a NVMe subsystem
native multipath where one path disappears and uevents are sent only to
a limited number of devices.

This allows e.g. to update Drive property references once the
primary/active path/controller disappears and another one in the subsystem
takes over.

Author: tbzatek

src/tests/dbus-tests/test_nvme.py

@@ -928,18 +928,18 @@ def test_fabrics_multipath(self):
         # disconnect the first controller and watch the drive object references change
         ctrl.Disconnect(self.no_options, dbus_interface=self.iface_prefix + '.NVMe.Fabrics')
         namespaces = self._find_block_objects_for_ctrl(ctrl_obj_path)
-        self.assertEqual(len(namespaces), self.NUM_NS)
-        namespaces = self._find_block_objects_for_ctrl(ctrl2_obj_path)
         self.assertEqual(len(namespaces), 0)
+        namespaces = self._find_block_objects_for_ctrl(ctrl2_obj_path)
+        self.assertEqual(len(namespaces), self.NUM_NS)
 
         ctrl2.Disconnect(self.no_options, dbus_interface=self.iface_prefix + '.NVMe.Fabrics')
         if self._ipv6_available:
             namespaces = self._find_block_objects_for_ctrl(ctrl_obj_path)
-            self.assertEqual(len(namespaces), self.NUM_NS)
+            self.assertEqual(len(namespaces), 0)
             namespaces = self._find_block_objects_for_ctrl(ctrl2_obj_path)
             self.assertEqual(len(namespaces), 0)
             namespaces = self._find_block_objects_for_ctrl(ctrl3_obj_path)
-            self.assertEqual(len(namespaces), 0)
+            self.assertEqual(len(namespaces), self.NUM_NS)
             ctrl3.Disconnect(self.no_options, dbus_interface=self.iface_prefix + '.NVMe.Fabrics')
 
     def test_hostnqn(self):

src/udiskslinuxblockobject.c

@@ -1194,4 +1194,8 @@ udisks_linux_block_object_nvme_subsys_uevent (UDisksLinuxBlockObject *object,
                                               UDisksUeventAction      action,
                                               UDisksLinuxDevice      *device)
 {
+  if (object->iface_block_device != NULL)
+    udisks_linux_block_update (UDISKS_LINUX_BLOCK (object->iface_block_device), object);
+  if (object->iface_nvme_namespace != NULL)
+    udisks_linux_nvme_namespace_update (UDISKS_LINUX_NVME_NAMESPACE (object->iface_nvme_namespace), object);
 }

src/udiskslinuxdriveobject.c

@@ -1374,4 +1374,10 @@ udisks_linux_drive_object_nvme_subsys_uevent (UDisksLinuxDriveObject  *object,
                                               UDisksLinuxDevice       *device,
                                               UDisksLinuxBlockObject **subsystem_blocks)
 {
+  if (object->iface_drive != NULL)
+    udisks_linux_drive_update (UDISKS_LINUX_DRIVE (object->iface_drive), object);
+  if (object->iface_nvme_ctrl != NULL)
+    udisks_linux_nvme_controller_update (UDISKS_LINUX_NVME_CONTROLLER (object->iface_nvme_ctrl), object);
+  if (object->iface_nvme_fabrics != NULL)
+    udisks_linux_nvme_fabrics_update (UDISKS_LINUX_NVME_FABRICS (object->iface_nvme_fabrics), object);
 }