diff --git a/ipc/util.h b/ipc/util.h
index 2b0bdd5..da65e8a 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -159,6 +159,21 @@
 	return uid / SEQ_MULTIPLIER != ipcp->seq;
 }
 
+static inline void ipc_lock_object(struct kern_ipc_perm *perm)
+{
+	spin_lock(&perm->lock);
+}
+
+static inline void ipc_unlock_object(struct kern_ipc_perm *perm)
+{
+	spin_unlock(&perm->lock);
+}
+
+static inline void ipc_assert_locked_object(struct kern_ipc_perm *perm)
+{
+	assert_spin_locked(&perm->lock);
+}
+
 static inline void ipc_lock_by_ptr(struct kern_ipc_perm *perm)
 {
 	rcu_read_lock();
@@ -171,11 +186,6 @@
 	rcu_read_unlock();
 }
 
-static inline void ipc_lock_object(struct kern_ipc_perm *perm)
-{
-	spin_lock(&perm->lock);
-}
-
 struct kern_ipc_perm *ipc_lock_check(struct ipc_ids *ids, int id);
 struct kern_ipc_perm *ipc_obtain_object_check(struct ipc_ids *ids, int id);
 int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids,