| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 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 | u32 mask, const void *data, int data_type, |
| 29 | const unsigned char *file_name, u32 cookie, |
| 30 | struct fsnotify_iter_info *iter_info); |
| 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 |
| 36 | static inline void dec_inotify_instances(struct ucounts *ucounts) |
| 37 | { |
| 38 | dec_ucount(ucounts, UCOUNT_INOTIFY_INSTANCES); |
| 39 | } |
| 40 | |
| 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 | |
| 46 | static inline void dec_inotify_watches(struct ucounts *ucounts) |
| 47 | { |
| 48 | dec_ucount(ucounts, UCOUNT_INOTIFY_WATCHES); |
| 49 | } |
| 50 | #endif |