Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
[muen/linux.git] / fs / notify / inotify / inotify.h
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         int wd;
9         u32 sync_cookie;
10         int name_len;
11         char name[];
12 };
13
14 struct inotify_inode_mark {
15         struct fsnotify_mark fsn_mark;
16         int wd;
17 };
18
19 static inline struct inotify_event_info *INOTIFY_E(struct fsnotify_event *fse)
20 {
21         return container_of(fse, struct inotify_event_info, fse);
22 }
23
24 extern void inotify_ignored_and_remove_idr(struct fsnotify_mark *fsn_mark,
25                                            struct fsnotify_group *group);
26 extern int inotify_handle_event(struct fsnotify_group *group,
27                                 struct inode *inode,
28                                 struct fsnotify_mark *inode_mark,
29                                 struct fsnotify_mark *vfsmount_mark,
30                                 u32 mask, const void *data, int data_type,
31                                 const unsigned char *file_name, u32 cookie,
32                                 struct fsnotify_iter_info *iter_info);
33
34 extern const struct fsnotify_ops inotify_fsnotify_ops;
35 extern struct kmem_cache *inotify_inode_mark_cachep;
36
37 #ifdef CONFIG_INOTIFY_USER
38 static inline void dec_inotify_instances(struct ucounts *ucounts)
39 {
40         dec_ucount(ucounts, UCOUNT_INOTIFY_INSTANCES);
41 }
42
43 static inline struct ucounts *inc_inotify_watches(struct ucounts *ucounts)
44 {
45         return inc_ucount(ucounts->ns, ucounts->uid, UCOUNT_INOTIFY_WATCHES);
46 }
47
48 static inline void dec_inotify_watches(struct ucounts *ucounts)
49 {
50         dec_ucount(ucounts, UCOUNT_INOTIFY_WATCHES);
51 }
52 #endif