1 #ifndef __FS_NOTIFY_FSNOTIFY_H_ 2 #define __FS_NOTIFY_FSNOTIFY_H_ 3 4 #include <linux/list.h> 5 #include <linux/fsnotify.h> 6 #include <linux/srcu.h> 7 #include <linux/types.h> 8 9 /* destroy all events sitting in this groups notification queue */ 10 extern void fsnotify_flush_notify(struct fsnotify_group *group); 11 12 /* protects reads of inode and vfsmount marks list */ 13 extern struct srcu_struct fsnotify_mark_srcu; 14 15 /* Calculate mask of events for a list of marks */ 16 extern u32 fsnotify_recalc_mask(struct hlist_head *head); 17 18 /* compare two groups for sorting of marks lists */ 19 extern int fsnotify_compare_groups(struct fsnotify_group *a, 20 struct fsnotify_group *b); 21 22 extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark, 23 __u32 mask); 24 /* Add mark to a proper place in mark list */ 25 extern int fsnotify_add_mark_list(struct hlist_head *head, 26 struct fsnotify_mark *mark, 27 int allow_dups); 28 /* add a mark to an inode */ 29 extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark, 30 struct fsnotify_group *group, struct inode *inode, 31 int allow_dups); 32 /* add a mark to a vfsmount */ 33 extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark, 34 struct fsnotify_group *group, struct vfsmount *mnt, 35 int allow_dups); 36 37 /* vfsmount specific destruction of a mark */ 38 extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark); 39 /* inode specific destruction of a mark */ 40 extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark); 41 /* Destroy all marks in the given list */ 42 extern void fsnotify_destroy_marks(struct list_head *to_free); 43 /* Find mark belonging to given group in the list of marks */ 44 extern struct fsnotify_mark *fsnotify_find_mark(struct hlist_head *head, 45 struct fsnotify_group *group); 46 /* run the list of all marks associated with inode and flag them to be freed */ 47 extern void fsnotify_clear_marks_by_inode(struct inode *inode); 48 /* run the list of all marks associated with vfsmount and flag them to be freed */ 49 extern void fsnotify_clear_marks_by_mount(struct vfsmount *mnt); 50 /* 51 * update the dentry->d_flags of all of inode's children to indicate if inode cares 52 * about events that happen to its children. 53 */ 54 extern void __fsnotify_update_child_dentry_flags(struct inode *inode); 55 56 /* allocate and destroy and event holder to attach events to notification/access queues */ 57 extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void); 58 extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder); 59 60 #endif /* __FS_NOTIFY_FSNOTIFY_H_ */ 61