1 #include <linux/fsnotify_backend.h> 2 #include <linux/path.h> 3 #include <linux/slab.h> 4 5 extern struct kmem_cache *fanotify_event_cachep; 6 7 /* 8 * Lifetime of the structure differs for normal and permission events. In both 9 * cases the structure is allocated in fanotify_handle_event(). For normal 10 * events the structure is freed immediately after reporting it to userspace. 11 * For permission events we free it only after we receive response from 12 * userspace. 13 */ 14 struct fanotify_event_info { 15 struct fsnotify_event fse; 16 /* 17 * We hold ref to this path so it may be dereferenced at any point 18 * during this object's lifetime 19 */ 20 struct path path; 21 struct pid *tgid; 22 #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS 23 u32 response; /* userspace answer to question */ 24 #endif 25 }; 26 27 static inline struct fanotify_event_info *FANOTIFY_E(struct fsnotify_event *fse) 28 { 29 return container_of(fse, struct fanotify_event_info, fse); 30 } 31