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 9925d1132SJan Kara #include "../mount.h" 10925d1132SJan Kara 11a2d8bc6cSEric Paris /* destroy all events sitting in this groups notification queue */ 12a2d8bc6cSEric Paris extern void fsnotify_flush_notify(struct fsnotify_group *group); 13a2d8bc6cSEric Paris 1475c1be48SEric Paris /* protects reads of inode and vfsmount marks list */ 1575c1be48SEric Paris extern struct srcu_struct fsnotify_mark_srcu; 1675c1be48SEric Paris 178edc6e16SJan Kara /* compare two groups for sorting of marks lists */ 188edc6e16SJan Kara extern int fsnotify_compare_groups(struct fsnotify_group *a, 198edc6e16SJan Kara struct fsnotify_group *b); 208edc6e16SJan Kara 210809ab69SJan Kara /* Find mark belonging to given group in the list of marks */ 229dd813c1SJan Kara extern struct fsnotify_mark *fsnotify_find_mark( 23*08991e83SJan Kara struct fsnotify_mark_connector __rcu **connp, 240809ab69SJan Kara struct fsnotify_group *group); 25a03e2e4fSJan Kara /* Destroy all marks connected via given connector */ 26*08991e83SJan Kara extern void fsnotify_destroy_marks(struct fsnotify_mark_connector __rcu **connp); 27925d1132SJan Kara /* run the list of all marks associated with inode and destroy them */ 28925d1132SJan Kara static inline void fsnotify_clear_marks_by_inode(struct inode *inode) 29925d1132SJan Kara { 30*08991e83SJan Kara fsnotify_destroy_marks(&inode->i_fsnotify_marks); 31925d1132SJan Kara } 32925d1132SJan Kara /* run the list of all marks associated with vfsmount and destroy them */ 33925d1132SJan Kara static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) 34925d1132SJan Kara { 35*08991e83SJan Kara fsnotify_destroy_marks(&real_mount(mnt)->mnt_fsnotify_marks); 36925d1132SJan Kara } 3735e48176SJan Kara /* prepare for freeing all marks associated with given group */ 3835e48176SJan Kara extern void fsnotify_detach_group_marks(struct fsnotify_group *group); 3935e48176SJan Kara /* 4035e48176SJan Kara * wait for fsnotify_mark_srcu period to end and free all marks in destroy_list 4135e48176SJan Kara */ 4235e48176SJan Kara extern void fsnotify_mark_destroy_list(void); 4335e48176SJan Kara 44c28f7e56SEric Paris /* 45c28f7e56SEric Paris * update the dentry->d_flags of all of inode's children to indicate if inode cares 46c28f7e56SEric Paris * about events that happen to its children. 47c28f7e56SEric Paris */ 48c28f7e56SEric Paris extern void __fsnotify_update_child_dentry_flags(struct inode *inode); 49a2d8bc6cSEric Paris 50a2d8bc6cSEric Paris /* allocate and destroy and event holder to attach events to notification/access queues */ 51a2d8bc6cSEric Paris extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void); 52a2d8bc6cSEric Paris extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder); 53a2d8bc6cSEric Paris 5490586523SEric Paris #endif /* __FS_NOTIFY_FSNOTIFY_H_ */ 55