include/linux/dnotify.h

   1 #ifndef _LINUX_DNOTIFY_H
   2 #define _LINUX_DNOTIFY_H
   3 /*
   4  * Directory notification for Linux
   5  *
   6  * Copyright (C) 2000,2002 Stephen Rothwell
   7  */
   8
   9 #include <linux/fs.h>
  10
  11 struct dnotify_struct {
  12         struct dnotify_struct * dn_next;
  13         __u32                   dn_mask;
  14         int                     dn_fd;
  15         struct file *           dn_filp;
  16         fl_owner_t              dn_owner;
  17 };
  18
  19 #ifdef __KERNEL__
  20
  21
  22 #ifdef CONFIG_DNOTIFY
  23
  24 #define DNOTIFY_ALL_EVENTS (FS_DELETE | FS_DELETE_CHILD |\
  25                             FS_MODIFY | FS_MODIFY_CHILD |\
  26                             FS_ACCESS | FS_ACCESS_CHILD |\
  27                             FS_ATTRIB | FS_ATTRIB_CHILD |\
  28                             FS_CREATE | FS_DN_RENAME |\
  29                             FS_MOVED_FROM | FS_MOVED_TO)
  30
  31 extern int dir_notify_enable;
  32 extern void dnotify_flush(struct file *, fl_owner_t);
  33 extern int fcntl_dirnotify(int, struct file *, unsigned long);
  34
  35 #else
  36
  37 static inline void dnotify_flush(struct file *filp, fl_owner_t id)
  38 {
  39 }
  40
  41 static inline int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg)
  42 {
  43         return -EINVAL;
  44 }
  45
  46 #endif /* CONFIG_DNOTIFY */
  47
  48 #endif /* __KERNEL __ */
  49
  50 #endif /* _LINUX_DNOTIFY_H */