| Eric Paris | 9058652 | 2009-05-21 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 | |
| 9 | /* protects reads of fsnotify_groups */ |
| 10 | extern struct srcu_struct fsnotify_grp_srcu; |
| Eric Paris | 19c2a0e | 2009-12-17 21:24:23 -0500 | [diff] [blame] | 11 | /* all groups which receive inode fsnotify events */ |
| 12 | extern struct list_head fsnotify_inode_groups; |
| Eric Paris | 7131485 | 2009-12-17 21:24:23 -0500 | [diff] [blame] | 13 | /* all groups which receive vfsmount fsnotify events */ |
| 14 | extern struct list_head fsnotify_vfsmount_groups; |
| Eric Paris | 19c2a0e | 2009-12-17 21:24:23 -0500 | [diff] [blame] | 15 | /* all bitwise OR of all event types (FS_*) for all fsnotify_inode_groups */ |
| 16 | extern __u32 fsnotify_inode_mask; |
| Eric Paris | 7131485 | 2009-12-17 21:24:23 -0500 | [diff] [blame] | 17 | /* all bitwise OR of all event types (FS_*) for all fsnotify_vfsmount_groups */ |
| 18 | extern __u32 fsnotify_vfsmount_mask; |
| Eric Paris | 3be25f4 | 2009-05-21 17:01:26 -0400 | [diff] [blame] | 19 | |
| Eric Paris | a2d8bc6 | 2009-05-21 17:01:37 -0400 | [diff] [blame] | 20 | /* destroy all events sitting in this groups notification queue */ |
| 21 | extern void fsnotify_flush_notify(struct fsnotify_group *group); |
| 22 | |
| Eric Paris | 90b1e7a | 2009-12-17 21:24:33 -0500 | [diff] [blame^] | 23 | extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark, |
| 24 | __u32 mask); |
| Eric Paris | 5444e29 | 2009-12-17 21:24:27 -0500 | [diff] [blame] | 25 | /* add a mark to an inode */ |
| 26 | extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark, |
| 27 | struct fsnotify_group *group, struct inode *inode, |
| 28 | int allow_dups); |
| Eric Paris | 0d48b7f | 2009-12-17 21:24:27 -0500 | [diff] [blame] | 29 | /* add a mark to a vfsmount */ |
| 30 | extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark, |
| 31 | struct fsnotify_group *group, struct vfsmount *mnt, |
| 32 | int allow_dups); |
| Eric Paris | 5444e29 | 2009-12-17 21:24:27 -0500 | [diff] [blame] | 33 | |
| Eric Paris | 4ca7635 | 2009-12-17 21:24:23 -0500 | [diff] [blame] | 34 | /* add a group to the inode group list */ |
| 35 | extern void fsnotify_add_inode_group(struct fsnotify_group *group); |
| Eric Paris | 7131485 | 2009-12-17 21:24:23 -0500 | [diff] [blame] | 36 | /* add a group to the vfsmount group list */ |
| 37 | extern void fsnotify_add_vfsmount_group(struct fsnotify_group *group); |
| Eric Paris | 3be25f4 | 2009-05-21 17:01:26 -0400 | [diff] [blame] | 38 | /* final kfree of a group */ |
| 39 | extern void fsnotify_final_destroy_group(struct fsnotify_group *group); |
| Eric Paris | a2d8bc6 | 2009-05-21 17:01:37 -0400 | [diff] [blame] | 40 | |
| Eric Paris | 0d48b7f | 2009-12-17 21:24:27 -0500 | [diff] [blame] | 41 | /* vfsmount specific destruction of a mark */ |
| 42 | extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark); |
| Eric Paris | 5444e29 | 2009-12-17 21:24:27 -0500 | [diff] [blame] | 43 | /* inode specific destruction of a mark */ |
| 44 | extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark); |
| Eric Paris | 3be25f4 | 2009-05-21 17:01:26 -0400 | [diff] [blame] | 45 | /* run the list of all marks associated with inode and flag them to be freed */ |
| 46 | extern void fsnotify_clear_marks_by_inode(struct inode *inode); |
| Andreas Gruenbacher | ca9c726 | 2009-12-17 21:24:27 -0500 | [diff] [blame] | 47 | /* run the list of all marks associated with vfsmount and flag them to be freed */ |
| 48 | extern void fsnotify_clear_marks_by_mount(struct vfsmount *mnt); |
| Eric Paris | c28f7e5 | 2009-05-21 17:01:29 -0400 | [diff] [blame] | 49 | /* |
| 50 | * update the dentry->d_flags of all of inode's children to indicate if inode cares |
| 51 | * about events that happen to its children. |
| 52 | */ |
| 53 | extern void __fsnotify_update_child_dentry_flags(struct inode *inode); |
| Eric Paris | a2d8bc6 | 2009-05-21 17:01:37 -0400 | [diff] [blame] | 54 | |
| 55 | /* allocate and destroy and event holder to attach events to notification/access queues */ |
| 56 | extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void); |
| 57 | extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder); |
| 58 | |
| Eric Paris | 9058652 | 2009-05-21 17:01:20 -0400 | [diff] [blame] | 59 | #endif /* __FS_NOTIFY_FSNOTIFY_H_ */ |