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 51