Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
90586523 EP |
2 | #ifndef __FS_NOTIFY_FSNOTIFY_H_ |
3 | #define __FS_NOTIFY_FSNOTIFY_H_ | |
4 | ||
5 | #include <linux/list.h> | |
6 | #include <linux/fsnotify.h> | |
7 | #include <linux/srcu.h> | |
8 | #include <linux/types.h> | |
9 | ||
925d1132 JK |
10 | #include "../mount.h" |
11 | ||
36f10f55 AG |
12 | static inline struct inode *fsnotify_conn_inode( |
13 | struct fsnotify_mark_connector *conn) | |
b812a9f5 | 14 | { |
36f10f55 | 15 | return container_of(conn->obj, struct inode, i_fsnotify_marks); |
b812a9f5 AG |
16 | } |
17 | ||
36f10f55 AG |
18 | static inline struct mount *fsnotify_conn_mount( |
19 | struct fsnotify_mark_connector *conn) | |
b812a9f5 | 20 | { |
36f10f55 | 21 | return container_of(conn->obj, struct mount, mnt_fsnotify_marks); |
b812a9f5 AG |
22 | } |
23 | ||
1e6cb723 AG |
24 | static inline struct super_block *fsnotify_conn_sb( |
25 | struct fsnotify_mark_connector *conn) | |
26 | { | |
27 | return container_of(conn->obj, struct super_block, s_fsnotify_marks); | |
28 | } | |
29 | ||
ec44610f AG |
30 | static inline struct super_block *fsnotify_connector_sb( |
31 | struct fsnotify_mark_connector *conn) | |
32 | { | |
33 | switch (conn->type) { | |
34 | case FSNOTIFY_OBJ_TYPE_INODE: | |
35 | return fsnotify_conn_inode(conn)->i_sb; | |
36 | case FSNOTIFY_OBJ_TYPE_VFSMOUNT: | |
37 | return fsnotify_conn_mount(conn)->mnt.mnt_sb; | |
38 | case FSNOTIFY_OBJ_TYPE_SB: | |
39 | return fsnotify_conn_sb(conn); | |
40 | default: | |
41 | return NULL; | |
42 | } | |
43 | } | |
44 | ||
a2d8bc6c EP |
45 | /* destroy all events sitting in this groups notification queue */ |
46 | extern void fsnotify_flush_notify(struct fsnotify_group *group); | |
47 | ||
75c1be48 EP |
48 | /* protects reads of inode and vfsmount marks list */ |
49 | extern struct srcu_struct fsnotify_mark_srcu; | |
50 | ||
8edc6e16 JK |
51 | /* compare two groups for sorting of marks lists */ |
52 | extern int fsnotify_compare_groups(struct fsnotify_group *a, | |
53 | struct fsnotify_group *b); | |
54 | ||
9b6e5434 AG |
55 | /* Destroy all marks attached to an object via connector */ |
56 | extern void fsnotify_destroy_marks(fsnotify_connp_t *connp); | |
925d1132 JK |
57 | /* run the list of all marks associated with inode and destroy them */ |
58 | static inline void fsnotify_clear_marks_by_inode(struct inode *inode) | |
59 | { | |
08991e83 | 60 | fsnotify_destroy_marks(&inode->i_fsnotify_marks); |
925d1132 JK |
61 | } |
62 | /* run the list of all marks associated with vfsmount and destroy them */ | |
63 | static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) | |
64 | { | |
08991e83 | 65 | fsnotify_destroy_marks(&real_mount(mnt)->mnt_fsnotify_marks); |
925d1132 | 66 | } |
1e6cb723 AG |
67 | /* run the list of all marks associated with sb and destroy them */ |
68 | static inline void fsnotify_clear_marks_by_sb(struct super_block *sb) | |
69 | { | |
70 | fsnotify_destroy_marks(&sb->s_fsnotify_marks); | |
71 | } | |
35e48176 | 72 | |
c28f7e56 EP |
73 | /* |
74 | * update the dentry->d_flags of all of inode's children to indicate if inode cares | |
75 | * about events that happen to its children. | |
76 | */ | |
77 | extern void __fsnotify_update_child_dentry_flags(struct inode *inode); | |
a2d8bc6c EP |
78 | |
79 | /* allocate and destroy and event holder to attach events to notification/access queues */ | |
80 | extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void); | |
81 | extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder); | |
82 | ||
4a0b20be BD |
83 | extern struct kmem_cache *fsnotify_mark_connector_cachep; |
84 | ||
90586523 | 85 | #endif /* __FS_NOTIFY_FSNOTIFY_H_ */ |