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-rw-r--r--include/linux/dnotify.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/include/linux/dnotify.h b/include/linux/dnotify.h
new file mode 100644
index 00000000000..f134a01975c
--- /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 */