1 files changed, 63 insertions, 0 deletions
diff --git a/include/linux/dnotify.h b/include/linux/dnotify.h
new file mode 100644
index 000000000000..f134a01975c7
--- /dev/null
+++ b/include/linux/dnotify.h
@@ -0,0 +1,63 @@
+#ifndef _LINUX_DNOTIFY_H
+#define _LINUX_DNOTIFY_H
+/*
+ * Directory notification for Linux
+ *
+ * Copyright (C) 2000,2002 Stephen Rothwell
+ */
+
+#include <linux/fs.h>
+
+struct dnotify_struct {
+	struct dnotify_struct *	dn_next;
+	unsigned long		dn_mask;
+	int			dn_fd;
+	struct file *		dn_filp;
+	fl_owner_t		dn_owner;
+};
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+
+#ifdef CONFIG_DNOTIFY
+
+extern void __inode_dir_notify(struct inode *, unsigned long);
+extern void dnotify_flush(struct file *, fl_owner_t);
+extern int fcntl_dirnotify(int, struct file *, unsigned long);
+extern void dnotify_parent(struct dentry *, unsigned long);
+
+static inline void inode_dir_notify(struct inode *inode, unsigned long event)
+{
+	if (inode->i_dnotify_mask & (event))
+		__inode_dir_notify(inode, event);
+}
+
+#else
+
+static inline void __inode_dir_notify(struct inode *inode, unsigned long event)
+{
+}
+
+static inline void dnotify_flush(struct file *filp, fl_owner_t id)
+{
+}
+
+static inline int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg)
+{
+	return -EINVAL;
+}
+
+static inline void dnotify_parent(struct dentry *dentry, unsigned long event)
+{
+}
+
+static inline void inode_dir_notify(struct inode *inode, unsigned long event)
+{
+}
+
+#endif /* CONFIG_DNOTIFY */
+
+#endif /* __KERNEL __ */
+
+#endif /* _LINUX_DNOTIFY_H */