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gerrit-public.fairphone.software / kernel / msm-4.9 / c354b54cfdf63587154da4fa0731c1fbda44c589 / . / fs / notify / fsnotify.h
blob: 13a00be516d250bc1328697060c8f73ddb688827 [file] [log] [blame]
Eric Paris90586522009-05-21 17:01:20 -0400[diff] [blame]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
Eric Parisa2d8bc62009-05-21 17:01:37 -0400[diff] [blame]9/* destroy all events sitting in this groups notification queue */
10extern void fsnotify_flush_notify(struct fsnotify_group *group);
11
Eric Paris75c1be42010-07-28 10:18:38 -0400[diff] [blame]12/* protects reads of inode and vfsmount marks list */
13extern struct srcu_struct fsnotify_mark_srcu;
14
Jan Kara0809ab62014-12-12 16:58:36 -0800[diff] [blame]15/* Calculate mask of events for a list of marks */
16extern u32 fsnotify_recalc_mask(struct hlist_head *head);
17
Jan Kara8edc6e12014-11-13 15:19:33 -0800[diff] [blame]18/* compare two groups for sorting of marks lists */
19extern int fsnotify_compare_groups(struct fsnotify_group *a,
20 struct fsnotify_group *b);
21
Eric Paris90b1e7a2009-12-17 21:24:33 -0500[diff] [blame]22extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark,
23 __u32 mask);
Jan Kara0809ab62014-12-12 16:58:36 -0800[diff] [blame]24/* Add mark to a proper place in mark list */
25extern int fsnotify_add_mark_list(struct hlist_head *head,
26 struct fsnotify_mark *mark,
27 int allow_dups);
Eric Paris5444e292009-12-17 21:24:27 -0500[diff] [blame]28/* add a mark to an inode */
29extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
30 struct fsnotify_group *group, struct inode *inode,
31 int allow_dups);
Eric Paris0d48b7f2009-12-17 21:24:27 -0500[diff] [blame]32/* add a mark to a vfsmount */
33extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
34 struct fsnotify_group *group, struct vfsmount *mnt,
35 int allow_dups);
Eric Paris5444e292009-12-17 21:24:27 -0500[diff] [blame]36
Eric Paris0d48b7f2009-12-17 21:24:27 -0500[diff] [blame]37/* vfsmount specific destruction of a mark */
38extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark);
Eric Paris5444e292009-12-17 21:24:27 -0500[diff] [blame]39/* inode specific destruction of a mark */
40extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark);
Jan Kara0809ab62014-12-12 16:58:36 -0800[diff] [blame]41/* Destroy all marks in the given list */
42extern void fsnotify_destroy_marks(struct list_head *to_free);
43/* Find mark belonging to given group in the list of marks */
44extern struct fsnotify_mark *fsnotify_find_mark(struct hlist_head *head,
45 struct fsnotify_group *group);
Eric Paris3be25f42009-05-21 17:01:26 -0400[diff] [blame]46/* run the list of all marks associated with inode and flag them to be freed */
47extern void fsnotify_clear_marks_by_inode(struct inode *inode);
Andreas Gruenbacherca9c7262009-12-17 21:24:27 -0500[diff] [blame]48/* run the list of all marks associated with vfsmount and flag them to be freed */
49extern void fsnotify_clear_marks_by_mount(struct vfsmount *mnt);
Eric Parisc28f7e52009-05-21 17:01:29 -0400[diff] [blame]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 */
54extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
Eric Parisa2d8bc62009-05-21 17:01:37 -0400[diff] [blame]55
56/* allocate and destroy and event holder to attach events to notification/access queues */
57extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void);
58extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder);
59
Eric Paris90586522009-05-21 17:01:20 -0400[diff] [blame]60#endif /* __FS_NOTIFY_FSNOTIFY_H_ */