1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_DNOTIFY_H 3 #define _LINUX_DNOTIFY_H 4 /* 5 * Directory notification for Linux 6 * 7 * Copyright (C) 2000,2002 Stephen Rothwell 8 */ 9 10 #include <linux/fs.h> 11 12 struct dnotify_struct { 13 struct dnotify_struct * dn_next; 14 __u32 dn_mask; 15 int dn_fd; 16 struct file * dn_filp; 17 fl_owner_t dn_owner; 18 }; 19 20 #ifdef __KERNEL__ 21 22 23 #ifdef CONFIG_DNOTIFY 24 25 #define DNOTIFY_ALL_EVENTS (FS_DELETE | FS_DELETE_CHILD |\ 26 FS_MODIFY | FS_MODIFY_CHILD |\ 27 FS_ACCESS | FS_ACCESS_CHILD |\ 28 FS_ATTRIB | FS_ATTRIB_CHILD |\ 29 FS_CREATE | FS_RENAME |\ 30 FS_MOVED_FROM | FS_MOVED_TO) 31 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 */ 51