1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __FS_NOTIFY_FSNOTIFY_H_ 3 #define __FS_NOTIFY_FSNOTIFY_H_ 4 5 #include <linux/list.h> 6 #include <linux/fsnotify.h> 7 #include <linux/srcu.h> 8 #include <linux/types.h> 9 10 #include "../mount.h" 11 12 /* destroy all events sitting in this groups notification queue */ 13 extern void fsnotify_flush_notify(struct fsnotify_group *group); 14 15 /* protects reads of inode and vfsmount marks list */ 16 extern struct srcu_struct fsnotify_mark_srcu; 17 18 /* compare two groups for sorting of marks lists */ 19 extern int fsnotify_compare_groups(struct fsnotify_group *a, 20 struct fsnotify_group *b); 21 22 /* Destroy all marks connected via given connector */ 23 extern void fsnotify_destroy_marks(struct fsnotify_mark_connector __rcu **connp); 24 /* run the list of all marks associated with inode and destroy them */ 25 static inline void fsnotify_clear_marks_by_inode(struct inode *inode) 26 { 27 fsnotify_destroy_marks(&inode->i_fsnotify_marks); 28 } 29 /* run the list of all marks associated with vfsmount and destroy them */ 30 static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) 31 { 32 fsnotify_destroy_marks(&real_mount(mnt)->mnt_fsnotify_marks); 33 } 34 /* Wait until all marks queued for destruction are destroyed */ 35 extern void fsnotify_wait_marks_destroyed(void); 36 37 /* 38 * update the dentry->d_flags of all of inode's children to indicate if inode cares 39 * about events that happen to its children. 40 */ 41 extern void __fsnotify_update_child_dentry_flags(struct inode *inode); 42 43 /* allocate and destroy and event holder to attach events to notification/access queues */ 44 extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void); 45 extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder); 46 47 #endif /* __FS_NOTIFY_FSNOTIFY_H_ */ 48