diff --git a/ironic/common/dhcp_factory.py b/ironic/common/dhcp_factory.py
index 306c937a63..aaff635df3 100644
--- a/ironic/common/dhcp_factory.py
+++ b/ironic/common/dhcp_factory.py
@@ -37,7 +37,7 @@ class DHCPFactory(object):
     # NOTE(lucasagomes): Use lockutils to avoid a potential race in eventlet
     #                    that might try to create two dhcp factories.
     @classmethod
-    @lockutils.synchronized(EM_SEMAPHORE, 'ironic-')
+    @lockutils.synchronized(EM_SEMAPHORE)
     def _set_dhcp_provider(cls, **kwargs):
         """Initialize the dhcp provider
 
diff --git a/ironic/common/driver_factory.py b/ironic/common/driver_factory.py
index a62741f73e..90040b7d85 100644
--- a/ironic/common/driver_factory.py
+++ b/ironic/common/driver_factory.py
@@ -135,7 +135,7 @@ class BaseDriverFactory(object):
     # NOTE(deva): Use lockutils to avoid a potential race in eventlet
     #             that might try to create two driver factories.
     @classmethod
-    @lockutils.synchronized(EM_SEMAPHORE, 'ironic-')
+    @lockutils.synchronized(EM_SEMAPHORE)
     def _init_extension_manager(cls):
         # NOTE(deva): In case multiple greenthreads queue up on this lock
         #             before _extension_manager is initialized, prevent
diff --git a/ironic/common/policy.py b/ironic/common/policy.py
index 79119736d3..fb73be2724 100644
--- a/ironic/common/policy.py
+++ b/ironic/common/policy.py
@@ -205,7 +205,7 @@ def list_policies():
     return policies
 
 
-@lockutils.synchronized('policy_enforcer', 'ironic-')
+@lockutils.synchronized('policy_enforcer')
 def init_enforcer(policy_file=None, rules=None,
                   default_rule=None, use_conf=True):
     """Synchronously initializes the policy enforcer
diff --git a/ironic/drivers/modules/image_cache.py b/ironic/drivers/modules/image_cache.py
index e270b4e454..11702a5b73 100644
--- a/ironic/drivers/modules/image_cache.py
+++ b/ironic/drivers/modules/image_cache.py
@@ -82,7 +82,7 @@ class ImageCache(object):
         if self.master_dir is None:
             # NOTE(ghe): We don't share images between instances/hosts
             if not CONF.parallel_image_downloads:
-                with lockutils.lock(img_download_lock_name, 'ironic-'):
+                with lockutils.lock(img_download_lock_name):
                     _fetch(ctx, href, dest_path, force_raw)
             else:
                 _fetch(ctx, href, dest_path, force_raw)
@@ -106,7 +106,7 @@ class ImageCache(object):
             img_download_lock_name = 'download-image:%s' % master_file_name
 
         # TODO(dtantsur): lock expiration time
-        with lockutils.lock(img_download_lock_name, 'ironic-'):
+        with lockutils.lock(img_download_lock_name):
             # NOTE(vdrok): After rebuild requested image can change, so we
             # should ensure that dest_path and master_path (if exists) are
             # pointing to the same file and their content is up to date
@@ -123,7 +123,7 @@ class ImageCache(object):
 
             if cache_up_to_date:
                 # NOTE(dtantsur): ensure we're not in the middle of clean up
-                with lockutils.lock('master_image', 'ironic-'):
+                with lockutils.lock('master_image'):
                     os.link(master_path, dest_path)
                 LOG.debug("Master cache hit for image %(href)s",
                           {'href': href})
@@ -165,7 +165,7 @@ class ImageCache(object):
         finally:
             utils.rmtree_without_raise(tmp_dir)
 
-    @lockutils.synchronized('master_image', 'ironic-')
+    @lockutils.synchronized('master_image')
     def clean_up(self, amount=None):
         """Clean up directory with images, keeping cache of the latest images.
 
diff --git a/ironic/nova/compute/manager.py b/ironic/nova/compute/manager.py
index 59782d7bdb..dea36c20f6 100644
--- a/ironic/nova/compute/manager.py
+++ b/ironic/nova/compute/manager.py
@@ -97,7 +97,7 @@ class ClusteredComputeManager(manager.ComputeManager):
         except Exception:
             pass
 
-    @lockutils.synchronized(CCM_SEMAPHORE, 'ironic-')
+    @lockutils.synchronized(CCM_SEMAPHORE)
     def _update_resources(self, node_uuid):
         """Update the specified node resource