diff --git a/intern/guardedalloc/MEM_guardedalloc.h b/intern/guardedalloc/MEM_guardedalloc.h
index 9e3927314d3..74cc365140f 100644
--- a/intern/guardedalloc/MEM_guardedalloc.h
+++ b/intern/guardedalloc/MEM_guardedalloc.h
@@ -102,6 +102,9 @@ extern "C" {
 	 * blocks. */ 
 	void MEM_printmemlist(void);
 
+	/** calls the function on all allocated memory blocks. */
+	void MEM_callbackmemlist(void (*func)(void*));
+
 	/** Print statistics about memory usage */
 	void MEM_printmemlist_stats(void);
 	
diff --git a/intern/guardedalloc/intern/mallocn.c b/intern/guardedalloc/intern/mallocn.c
index ca7f2a4d506..ecf89c894d2 100644
--- a/intern/guardedalloc/intern/mallocn.c
+++ b/intern/guardedalloc/intern/mallocn.c
@@ -460,6 +460,24 @@ static void MEM_printmemlist_internal( int pydict )
 	mem_unlock_thread();
 }
 
+void MEM_callbackmemlist(void (*func)(void*)) {
+	MemHead *membl;
+
+	mem_lock_thread();
+
+	membl = membase->first;
+	if (membl) membl = MEMNEXT(membl);
+
+	while(membl) {
+		func(membl+1);
+		if(membl->next)
+			membl= MEMNEXT(membl->next);
+		else break;
+	}
+
+	mem_unlock_thread();
+}
+
 void MEM_printmemlist( void ) {
 	MEM_printmemlist_internal(0);
 }