diff options
Diffstat (limited to 'cinder/volume/drivers/rbd.py')
| -rw-r--r-- | cinder/volume/drivers/rbd.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/cinder/volume/drivers/rbd.py b/cinder/volume/drivers/rbd.py index 6cc86c2c5..e710fd356 100644 --- a/cinder/volume/drivers/rbd.py +++ b/cinder/volume/drivers/rbd.py @@ -968,7 +968,8 @@ class RBDDriver(driver.CloneableImageVD, driver.MigrateVD, with RBDVolumeProxy(self, vol_name) as image: image_features = image.features() change_features = self.MULTIATTACH_EXCLUSIONS & image_features - image.update_features(change_features, False) + if change_features != 0: + image.update_features(change_features, False) return {'provider_location': self._dumps({'saved_features': image_features})} @@ -980,7 +981,8 @@ class RBDDriver(driver.CloneableImageVD, driver.MigrateVD, provider_location = json.loads(volume.provider_location) image_features = provider_location['saved_features'] change_features = self.MULTIATTACH_EXCLUSIONS & image_features - image.update_features(change_features, True) + if change_features != 0: + image.update_features(change_features, True) except IndexError: msg = "Could not find saved image features." raise RBDDriverException(reason=msg) |