--- zzzz-none-000/linux-4.1.52/include/linux/dcache.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/dcache.h	2022-03-02 11:37:13.000000000 +0000
@@ -204,6 +204,7 @@
 #define DCACHE_COOKIE			0x00002000 /* For use by dcookie subsystem */
 #define DCACHE_FSNOTIFY_PARENT_WATCHED	0x00004000
      /* Parent inode is watched by some fsnotify listener */
+#define DCACHE_FSNOTIFY_PARENT_WATCHED_RECURSIVLY	0x10000000
 
 #define DCACHE_DENTRY_KILLED		0x00008000