--- zzzz-none-000/linux-4.4.271/include/linux/vmalloc.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/linux/vmalloc.h	2023-04-19 10:22:30.000000000 +0000
@@ -189,4 +189,8 @@
 #define VMALLOC_TOTAL 0UL
 #endif
 
+#if defined(CONFIG_AVM_ENHANCED) 
+int get_used_vmalloc_mem(void);
+#endif/*--- #if defined(CONFIG_AVM_ENHANCED)  ---*/
+
 #endif /* _LINUX_VMALLOC_H */