fs/notify/fsnotify.h

   1 #ifndef __FS_NOTIFY_FSNOTIFY_H_
   2 #define __FS_NOTIFY_FSNOTIFY_H_
   3
   4 #include <linux/list.h>
   5 #include <linux/fsnotify.h>
   6 #include <linux/srcu.h>
   7 #include <linux/types.h>
   8
   9 #include "../mount.h"
  10
  11 struct fsnotify_iter_info {
  12         struct fsnotify_mark *inode_mark;
  13         struct fsnotify_mark *vfsmount_mark;
  14         int srcu_idx;
  15 };
  16
  17 /* destroy all events sitting in this groups notification queue */
  18 extern void fsnotify_flush_notify(struct fsnotify_group *group);
  19
  20 /* protects reads of inode and vfsmount marks list */
  21 extern struct srcu_struct fsnotify_mark_srcu;
  22
  23 /* compare two groups for sorting of marks lists */
  24 extern int fsnotify_compare_groups(struct fsnotify_group *a,
  25                                    struct fsnotify_group *b);
  26
  27 /* Destroy all marks connected via given connector */
  28 extern void fsnotify_destroy_marks(struct fsnotify_mark_connector __rcu **connp);
  29 /* run the list of all marks associated with inode and destroy them */
  30 static inline void fsnotify_clear_marks_by_inode(struct inode *inode)
  31 {
  32         fsnotify_destroy_marks(&inode->i_fsnotify_marks);
  33 }
  34 /* run the list of all marks associated with vfsmount and destroy them */
  35 static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt)
  36 {
  37         fsnotify_destroy_marks(&real_mount(mnt)->mnt_fsnotify_marks);
  38 }
  39 /* Wait until all marks queued for destruction are destroyed */
  40 extern void fsnotify_wait_marks_destroyed(void);
  41
  42 /*
  43  * update the dentry->d_flags of all of inode's children to indicate if inode cares
  44  * about events that happen to its children.
  45  */
  46 extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
  47
  48 /* allocate and destroy and event holder to attach events to notification/access queues */
  49 extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void);
  50 extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder);
  51
  52 #endif  /* __FS_NOTIFY_FSNOTIFY_H_ */