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-rw-r--r--neutron/db/ipam_backend_mixin.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/neutron/db/ipam_backend_mixin.py b/neutron/db/ipam_backend_mixin.py
index e734996900..9c245ae689 100644
--- a/neutron/db/ipam_backend_mixin.py
+++ b/neutron/db/ipam_backend_mixin.py
@@ -683,7 +683,7 @@ class IpamBackendMixin(db_base_plugin_common.DbBasePluginCommon):
msg = ('This subnet is being modified by another concurrent '
'operation')
for subnet in subnets:
- subnet.lock_register(
+ subnet.read_lock_register(
context, exc.SubnetInUse(subnet_id=subnet.id, reason=msg),
id=subnet.id)
subnet_dicts = [self._make_subnet_dict(subnet, context=context)