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90586523 EP |
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 | ||
925d1132 JK |
9 | #include "../mount.h" |
10 | ||
a2d8bc6c EP |
11 | /* destroy all events sitting in this groups notification queue */ |
12 | extern void fsnotify_flush_notify(struct fsnotify_group *group); | |
13 | ||
75c1be48 EP |
14 | /* protects reads of inode and vfsmount marks list */ |
15 | extern struct srcu_struct fsnotify_mark_srcu; | |
16 | ||
0809ab69 JK |
17 | /* Calculate mask of events for a list of marks */ |
18 | extern u32 fsnotify_recalc_mask(struct hlist_head *head); | |
19 | ||
8edc6e16 JK |
20 | /* compare two groups for sorting of marks lists */ |
21 | extern int fsnotify_compare_groups(struct fsnotify_group *a, | |
22 | struct fsnotify_group *b); | |
23 | ||
90b1e7a5 EP |
24 | extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark, |
25 | __u32 mask); | |
0809ab69 JK |
26 | /* Add mark to a proper place in mark list */ |
27 | extern int fsnotify_add_mark_list(struct hlist_head *head, | |
28 | struct fsnotify_mark *mark, | |
29 | int allow_dups); | |
5444e298 EP |
30 | /* add a mark to an inode */ |
31 | extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark, | |
32 | struct fsnotify_group *group, struct inode *inode, | |
33 | int allow_dups); | |
0d48b7f0 EP |
34 | /* add a mark to a vfsmount */ |
35 | extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark, | |
36 | struct fsnotify_group *group, struct vfsmount *mnt, | |
37 | int allow_dups); | |
5444e298 | 38 | |
0d48b7f0 EP |
39 | /* vfsmount specific destruction of a mark */ |
40 | extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark); | |
5444e298 EP |
41 | /* inode specific destruction of a mark */ |
42 | extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark); | |
0809ab69 JK |
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); | |
925d1132 JK |
46 | /* Destroy all marks in the given list protected by 'lock' */ |
47 | extern void fsnotify_destroy_marks(struct hlist_head *head, spinlock_t *lock); | |
48 | /* run the list of all marks associated with inode and destroy them */ | |
49 | static inline void fsnotify_clear_marks_by_inode(struct inode *inode) | |
50 | { | |
51 | fsnotify_destroy_marks(&inode->i_fsnotify_marks, &inode->i_lock); | |
52 | } | |
53 | /* run the list of all marks associated with vfsmount and destroy them */ | |
54 | static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) | |
55 | { | |
56 | fsnotify_destroy_marks(&real_mount(mnt)->mnt_fsnotify_marks, | |
57 | &mnt->mnt_root->d_lock); | |
58 | } | |
35e48176 JK |
59 | /* prepare for freeing all marks associated with given group */ |
60 | extern void fsnotify_detach_group_marks(struct fsnotify_group *group); | |
61 | /* | |
62 | * wait for fsnotify_mark_srcu period to end and free all marks in destroy_list | |
63 | */ | |
64 | extern void fsnotify_mark_destroy_list(void); | |
65 | ||
c28f7e56 EP |
66 | /* |
67 | * update the dentry->d_flags of all of inode's children to indicate if inode cares | |
68 | * about events that happen to its children. | |
69 | */ | |
70 | extern void __fsnotify_update_child_dentry_flags(struct inode *inode); | |
a2d8bc6c EP |
71 | |
72 | /* allocate and destroy and event holder to attach events to notification/access queues */ | |
73 | extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void); | |
74 | extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder); | |
75 | ||
90586523 | 76 | #endif /* __FS_NOTIFY_FSNOTIFY_H_ */ |