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 919c2a0e1SEric Paris /* all groups which receive inode fsnotify events */ 1019c2a0e1SEric Paris extern struct list_head fsnotify_inode_groups; 117131485aSEric Paris /* all groups which receive vfsmount fsnotify events */ 127131485aSEric Paris extern struct list_head fsnotify_vfsmount_groups; 1319c2a0e1SEric Paris /* all bitwise OR of all event types (FS_*) for all fsnotify_inode_groups */ 1419c2a0e1SEric Paris extern __u32 fsnotify_inode_mask; 157131485aSEric Paris /* all bitwise OR of all event types (FS_*) for all fsnotify_vfsmount_groups */ 167131485aSEric Paris extern __u32 fsnotify_vfsmount_mask; 173be25f49SEric Paris 18a2d8bc6cSEric Paris /* destroy all events sitting in this groups notification queue */ 19a2d8bc6cSEric Paris extern void fsnotify_flush_notify(struct fsnotify_group *group); 20a2d8bc6cSEric Paris 21*75c1be48SEric Paris /* protects reads of inode and vfsmount marks list */ 22*75c1be48SEric Paris extern struct srcu_struct fsnotify_mark_srcu; 23*75c1be48SEric Paris 2490b1e7a5SEric Paris extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark, 2590b1e7a5SEric Paris __u32 mask); 265444e298SEric Paris /* add a mark to an inode */ 275444e298SEric Paris extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark, 285444e298SEric Paris struct fsnotify_group *group, struct inode *inode, 295444e298SEric Paris int allow_dups); 300d48b7f0SEric Paris /* add a mark to a vfsmount */ 310d48b7f0SEric Paris extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark, 320d48b7f0SEric Paris struct fsnotify_group *group, struct vfsmount *mnt, 330d48b7f0SEric Paris int allow_dups); 345444e298SEric Paris 354ca76352SEric Paris /* add a group to the inode group list */ 364ca76352SEric Paris extern void fsnotify_add_inode_group(struct fsnotify_group *group); 377131485aSEric Paris /* add a group to the vfsmount group list */ 387131485aSEric Paris extern void fsnotify_add_vfsmount_group(struct fsnotify_group *group); 393be25f49SEric Paris /* final kfree of a group */ 403be25f49SEric Paris extern void fsnotify_final_destroy_group(struct fsnotify_group *group); 41a2d8bc6cSEric Paris 420d48b7f0SEric Paris /* vfsmount specific destruction of a mark */ 430d48b7f0SEric Paris extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark); 445444e298SEric Paris /* inode specific destruction of a mark */ 455444e298SEric Paris extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark); 463be25f49SEric Paris /* run the list of all marks associated with inode and flag them to be freed */ 473be25f49SEric Paris extern void fsnotify_clear_marks_by_inode(struct inode *inode); 48ca9c726eSAndreas Gruenbacher /* run the list of all marks associated with vfsmount and flag them to be freed */ 49ca9c726eSAndreas Gruenbacher extern void fsnotify_clear_marks_by_mount(struct vfsmount *mnt); 50c28f7e56SEric Paris /* 51c28f7e56SEric Paris * update the dentry->d_flags of all of inode's children to indicate if inode cares 52c28f7e56SEric Paris * about events that happen to its children. 53c28f7e56SEric Paris */ 54c28f7e56SEric Paris extern void __fsnotify_update_child_dentry_flags(struct inode *inode); 55a2d8bc6cSEric Paris 56a2d8bc6cSEric Paris /* allocate and destroy and event holder to attach events to notification/access queues */ 57a2d8bc6cSEric Paris extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void); 58a2d8bc6cSEric Paris extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder); 59a2d8bc6cSEric Paris 6090586523SEric Paris #endif /* __FS_NOTIFY_FSNOTIFY_H_ */ 61