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Eric Paris90586522009-05-21 17:01:20 -04001#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
Eric Paris19c2a0e2009-12-17 21:24:23 -05009/* all groups which receive inode fsnotify events */
10extern struct list_head fsnotify_inode_groups;
Eric Paris71314852009-12-17 21:24:23 -050011/* all groups which receive vfsmount fsnotify events */
12extern struct list_head fsnotify_vfsmount_groups;
Eric Paris3be25f42009-05-21 17:01:26 -040013
Eric Parisa2d8bc62009-05-21 17:01:37 -040014/* destroy all events sitting in this groups notification queue */
15extern void fsnotify_flush_notify(struct fsnotify_group *group);
16
Eric Paris75c1be42010-07-28 10:18:38 -040017/* protects reads of inode and vfsmount marks list */
18extern struct srcu_struct fsnotify_mark_srcu;
19
Eric Paris90b1e7a2009-12-17 21:24:33 -050020extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark,
21 __u32 mask);
Eric Paris5444e292009-12-17 21:24:27 -050022/* add a mark to an inode */
23extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
24 struct fsnotify_group *group, struct inode *inode,
25 int allow_dups);
Eric Paris0d48b7f2009-12-17 21:24:27 -050026/* add a mark to a vfsmount */
27extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
28 struct fsnotify_group *group, struct vfsmount *mnt,
29 int allow_dups);
Eric Paris5444e292009-12-17 21:24:27 -050030
Eric Paris4ca76352009-12-17 21:24:23 -050031/* add a group to the inode group list */
32extern void fsnotify_add_inode_group(struct fsnotify_group *group);
Eric Paris71314852009-12-17 21:24:23 -050033/* add a group to the vfsmount group list */
34extern void fsnotify_add_vfsmount_group(struct fsnotify_group *group);
Eric Paris3be25f42009-05-21 17:01:26 -040035/* final kfree of a group */
36extern void fsnotify_final_destroy_group(struct fsnotify_group *group);
Eric Parisa2d8bc62009-05-21 17:01:37 -040037
Eric Paris0d48b7f2009-12-17 21:24:27 -050038/* vfsmount specific destruction of a mark */
39extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark);
Eric Paris5444e292009-12-17 21:24:27 -050040/* inode specific destruction of a mark */
41extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark);
Eric Paris3be25f42009-05-21 17:01:26 -040042/* run the list of all marks associated with inode and flag them to be freed */
43extern void fsnotify_clear_marks_by_inode(struct inode *inode);
Andreas Gruenbacherca9c7262009-12-17 21:24:27 -050044/* run the list of all marks associated with vfsmount and flag them to be freed */
45extern void fsnotify_clear_marks_by_mount(struct vfsmount *mnt);
Eric Parisc28f7e52009-05-21 17:01:29 -040046/*
47 * update the dentry->d_flags of all of inode's children to indicate if inode cares
48 * about events that happen to its children.
49 */
50extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
Eric Parisa2d8bc62009-05-21 17:01:37 -040051
52/* allocate and destroy and event holder to attach events to notification/access queues */
53extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void);
54extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder);
55
Eric Paris90586522009-05-21 17:01:20 -040056#endif /* __FS_NOTIFY_FSNOTIFY_H_ */