export __inode_dir_notify so that dnotify can be called from filesystems in modules.

kernel/ksyms.c

@@ -53,6 +53,7 @@
 #include <linux/root_dev.h>
 #include <linux/percpu.h>
 #include <linux/smp_lock.h>
+#include <linux/dnotify.h>
 #include <asm/checksum.h>
 
 #if defined(CONFIG_PROC_FS)
@@ -560,6 +561,7 @@ EXPORT_SYMBOL(buffer_insert_list);
 EXPORT_SYMBOL(make_bad_inode);
 EXPORT_SYMBOL(is_bad_inode);
 EXPORT_SYMBOL(event);
+EXPORT_SYMBOL(__inode_dir_notify);
 
 #ifdef CONFIG_UID16
 EXPORT_SYMBOL(overflowuid);