xref: /openbmc/linux/fs/notify/fsnotify.h (revision a2d8bc6cb4a3024661baf877242f123787d0c054)
190586523SEric Paris #ifndef __FS_NOTIFY_FSNOTIFY_H_
290586523SEric Paris #define __FS_NOTIFY_FSNOTIFY_H_
390586523SEric Paris 
490586523SEric Paris #include <linux/list.h>
590586523SEric Paris #include <linux/fsnotify.h>
690586523SEric Paris #include <linux/srcu.h>
790586523SEric Paris #include <linux/types.h>
890586523SEric Paris 
990586523SEric Paris /* protects reads of fsnotify_groups */
1090586523SEric Paris extern struct srcu_struct fsnotify_grp_srcu;
1190586523SEric Paris /* all groups which receive fsnotify events */
1290586523SEric Paris extern struct list_head fsnotify_groups;
1390586523SEric Paris /* all bitwise OR of all event types (FS_*) for all fsnotify_groups */
1490586523SEric Paris extern __u32 fsnotify_mask;
153be25f49SEric Paris 
16*a2d8bc6cSEric Paris /* destroy all events sitting in this groups notification queue */
17*a2d8bc6cSEric Paris extern void fsnotify_flush_notify(struct fsnotify_group *group);
18*a2d8bc6cSEric Paris 
193be25f49SEric Paris /* final kfree of a group */
203be25f49SEric Paris extern void fsnotify_final_destroy_group(struct fsnotify_group *group);
21*a2d8bc6cSEric Paris 
223be25f49SEric Paris /* run the list of all marks associated with inode and flag them to be freed */
233be25f49SEric Paris extern void fsnotify_clear_marks_by_inode(struct inode *inode);
24c28f7e56SEric Paris /*
25c28f7e56SEric Paris  * update the dentry->d_flags of all of inode's children to indicate if inode cares
26c28f7e56SEric Paris  * about events that happen to its children.
27c28f7e56SEric Paris  */
28c28f7e56SEric Paris extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
29*a2d8bc6cSEric Paris 
30*a2d8bc6cSEric Paris /* allocate and destroy and event holder to attach events to notification/access queues */
31*a2d8bc6cSEric Paris extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void);
32*a2d8bc6cSEric Paris extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder);
33*a2d8bc6cSEric Paris 
3490586523SEric Paris #endif	/* __FS_NOTIFY_FSNOTIFY_H_ */
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