79 lines
3.1 KiB
C
79 lines
3.1 KiB
C
#ifndef __FS_NOTIFY_FSNOTIFY_H_
|
|
#define __FS_NOTIFY_FSNOTIFY_H_
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/fsnotify.h>
|
|
#include <linux/srcu.h>
|
|
#include <linux/types.h>
|
|
|
|
#include "../mount.h"
|
|
|
|
/* destroy all events sitting in this groups notification queue */
|
|
extern void fsnotify_flush_notify(struct fsnotify_group *group);
|
|
|
|
/* protects reads of inode and vfsmount marks list */
|
|
extern struct srcu_struct fsnotify_mark_srcu;
|
|
|
|
/* Calculate mask of events for a list of marks */
|
|
extern u32 fsnotify_recalc_mask(struct fsnotify_mark_connector *conn);
|
|
|
|
/* compare two groups for sorting of marks lists */
|
|
extern int fsnotify_compare_groups(struct fsnotify_group *a,
|
|
struct fsnotify_group *b);
|
|
|
|
extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark,
|
|
__u32 mask);
|
|
/* Add mark to a proper place in mark list */
|
|
extern int fsnotify_add_mark_list(struct fsnotify_mark_connector **connp,
|
|
struct fsnotify_mark *mark,
|
|
int allow_dups);
|
|
/* add a mark to an inode */
|
|
extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
|
|
struct fsnotify_group *group, struct inode *inode,
|
|
int allow_dups);
|
|
/* add a mark to a vfsmount */
|
|
extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
|
|
struct fsnotify_group *group, struct vfsmount *mnt,
|
|
int allow_dups);
|
|
|
|
/* vfsmount specific destruction of a mark */
|
|
extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark);
|
|
/* inode specific destruction of a mark */
|
|
extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark);
|
|
/* Find mark belonging to given group in the list of marks */
|
|
extern struct fsnotify_mark *fsnotify_find_mark(
|
|
struct fsnotify_mark_connector *conn,
|
|
struct fsnotify_group *group);
|
|
/* Destroy all marks in the given list protected by 'lock' */
|
|
extern void fsnotify_destroy_marks(struct fsnotify_mark_connector *conn,
|
|
spinlock_t *lock);
|
|
/* run the list of all marks associated with inode and destroy them */
|
|
static inline void fsnotify_clear_marks_by_inode(struct inode *inode)
|
|
{
|
|
fsnotify_destroy_marks(inode->i_fsnotify_marks, &inode->i_lock);
|
|
}
|
|
/* run the list of all marks associated with vfsmount and destroy them */
|
|
static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt)
|
|
{
|
|
fsnotify_destroy_marks(real_mount(mnt)->mnt_fsnotify_marks,
|
|
&mnt->mnt_root->d_lock);
|
|
}
|
|
/* prepare for freeing all marks associated with given group */
|
|
extern void fsnotify_detach_group_marks(struct fsnotify_group *group);
|
|
/*
|
|
* wait for fsnotify_mark_srcu period to end and free all marks in destroy_list
|
|
*/
|
|
extern void fsnotify_mark_destroy_list(void);
|
|
|
|
/*
|
|
* update the dentry->d_flags of all of inode's children to indicate if inode cares
|
|
* about events that happen to its children.
|
|
*/
|
|
extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
|
|
|
|
/* allocate and destroy and event holder to attach events to notification/access queues */
|
|
extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void);
|
|
extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder);
|
|
|
|
#endif /* __FS_NOTIFY_FSNOTIFY_H_ */
|