diff --git a/headers/private/kernel/condition_variable.h b/headers/private/kernel/condition_variable.h
index 0f13257a12..914cb2cded 100644
--- a/headers/private/kernel/condition_variable.h
+++ b/headers/private/kernel/condition_variable.h
@@ -63,6 +63,13 @@ public:
 	inline	void				NotifyAll(bool threadsLocked = false,
 									status_t result = B_OK);
 
+	static void					NotifyOne(const void* object,
+									bool threadsLocked = false,
+									status_t result = B_OK);
+	static void					NotifyAll(const void* object,
+									bool threadsLocked = false,
+									status_t result = B_OK);
+
 			void				Add(ConditionVariableEntry* entry);
 
 			status_t			Wait(uint32 flags = 0, bigtime_t timeout = 0);
diff --git a/src/system/kernel/condition_variable.cpp b/src/system/kernel/condition_variable.cpp
index d27a41124e..1883dcd76c 100644
--- a/src/system/kernel/condition_variable.cpp
+++ b/src/system/kernel/condition_variable.cpp
@@ -261,6 +261,34 @@ ConditionVariable::Wait(uint32 flags, bigtime_t timeout)
 }
 
 
+void
+ConditionVariable::NotifyOne(const void* object, bool threadsLocked,
+	status_t result)
+{
+	InterruptsSpinLocker locker(sConditionVariablesLock);
+	ConditionVariable* variable = sConditionVariableHash.Lookup(object);
+	locker.Unlock();
+	if (variable == NULL)
+		return;
+
+	variable->NotifyOne(threadsLocked, result);
+}
+
+
+void
+ConditionVariable::NotifyAll(const void* object,
+	bool threadsLocked, status_t result)
+{
+	InterruptsSpinLocker locker(sConditionVariablesLock);
+	ConditionVariable* variable = sConditionVariableHash.Lookup(object);
+	locker.Unlock();
+	if (variable == NULL)
+		return;
+
+	variable->NotifyAll(threadsLocked, result);
+}
+
+
 /*static*/ void
 ConditionVariable::ListAll()
 {