1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <linux/fsnotify_backend.h>
3 #include <linux/inotify.h>
4 #include <linux/slab.h> /* struct kmem_cache */
5
6 struct inotify_event_info {
7 struct fsnotify_event fse;
8 u32 mask;
9 int wd;
10 u32 sync_cookie;
11 int name_len;
12 char name[];
13 };
14
15 struct inotify_inode_mark {
16 struct fsnotify_mark fsn_mark;
17 int wd;
18 };
19
INOTIFY_E(struct fsnotify_event * fse)20 static inline struct inotify_event_info *INOTIFY_E(struct fsnotify_event *fse)
21 {
22 return container_of(fse, struct inotify_event_info, fse);
23 }
24
25 extern void inotify_ignored_and_remove_idr(struct fsnotify_mark *fsn_mark,
26 struct fsnotify_group *group);
27 extern int inotify_handle_inode_event(struct fsnotify_mark *inode_mark,
28 u32 mask, struct inode *inode,
29 struct inode *dir,
30 const struct qstr *name, u32 cookie);
31
32 extern const struct fsnotify_ops inotify_fsnotify_ops;
33 extern struct kmem_cache *inotify_inode_mark_cachep;
34
35 #ifdef CONFIG_INOTIFY_USER
dec_inotify_instances(struct ucounts * ucounts)36 static inline void dec_inotify_instances(struct ucounts *ucounts)
37 {
38 dec_ucount(ucounts, UCOUNT_INOTIFY_INSTANCES);
39 }
40
inc_inotify_watches(struct ucounts * ucounts)41 static inline struct ucounts *inc_inotify_watches(struct ucounts *ucounts)
42 {
43 return inc_ucount(ucounts->ns, ucounts->uid, UCOUNT_INOTIFY_WATCHES);
44 }
45
dec_inotify_watches(struct ucounts * ucounts)46 static inline void dec_inotify_watches(struct ucounts *ucounts)
47 {
48 dec_ucount(ucounts, UCOUNT_INOTIFY_WATCHES);
49 }
50 #endif
51