fs/notify/fsnotify.h

   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_ */