1 #ifndef __FS_NOTIFY_FSNOTIFY_H_
2 #define __FS_NOTIFY_FSNOTIFY_H_
4 #include <linux/list.h>
5 #include <linux/fsnotify.h>
6 #include <linux/srcu.h>
7 #include <linux/types.h>
9 /* all groups which receive inode fsnotify events */
10 extern struct list_head fsnotify_inode_groups;
11 /* all groups which receive vfsmount fsnotify events */
12 extern struct list_head fsnotify_vfsmount_groups;
13 /* all bitwise OR of all event types (FS_*) for all fsnotify_inode_groups */
14 extern __u32 fsnotify_inode_mask;
15 /* all bitwise OR of all event types (FS_*) for all fsnotify_vfsmount_groups */
16 extern __u32 fsnotify_vfsmount_mask;
18 /* destroy all events sitting in this groups notification queue */
19 extern void fsnotify_flush_notify(struct fsnotify_group *group);
21 /* protects reads of inode and vfsmount marks list */
22 extern struct srcu_struct fsnotify_mark_srcu;
24 extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark,
26 /* add a mark to an inode */
27 extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
28 struct fsnotify_group *group, struct inode *inode,
30 /* add a mark to a vfsmount */
31 extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
32 struct fsnotify_group *group, struct vfsmount *mnt,
35 /* add a group to the inode group list */
36 extern void fsnotify_add_inode_group(struct fsnotify_group *group);
37 /* add a group to the vfsmount group list */
38 extern void fsnotify_add_vfsmount_group(struct fsnotify_group *group);
39 /* final kfree of a group */
40 extern void fsnotify_final_destroy_group(struct fsnotify_group *group);
42 /* vfsmount specific destruction of a mark */
43 extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark);
44 /* inode specific destruction of a mark */
45 extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark);
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);
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.
54 extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
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);
60 #endif /* __FS_NOTIFY_FSNOTIFY_H_ */