[linux-2.6-block.git] / fs / notify / fsnotify.h

/* SPDX-License-Identifier: GPL-2.0 */
#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;

/* compare two groups for sorting of marks lists */
extern int fsnotify_compare_groups(struct fsnotify_group *a,
				   struct fsnotify_group *b);

/* Destroy all marks connected via given connector */
extern void fsnotify_destroy_marks(struct fsnotify_mark_connector __rcu **connp);
/* 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);
}
/* 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);
}
/* Wait until all marks queued for destruction are destroyed */
extern void fsnotify_wait_marks_destroyed(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_ */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
90586523 EP	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
925d1132 JK	10	#include "../mount.h"
925d1132 JK	11
a2d8bc6c EP	12	/* destroy all events sitting in this groups notification queue */
	13	extern void fsnotify_flush_notify(struct fsnotify_group *group);
	14
75c1be48 EP	15	/* protects reads of inode and vfsmount marks list */
	16	extern struct srcu_struct fsnotify_mark_srcu;
	17
8edc6e16 JK	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
a03e2e4f	22	/* Destroy all marks connected via given connector */
08991e83	23	extern void fsnotify_destroy_marks(struct fsnotify_mark_connector __rcu **connp);
925d1132 JK	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	{
08991e83	27	fsnotify_destroy_marks(&inode->i_fsnotify_marks);
925d1132 JK	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	{
08991e83	32	fsnotify_destroy_marks(&real_mount(mnt)->mnt_fsnotify_marks);
925d1132	33	}
f09b04a0 JK	34	/* Wait until all marks queued for destruction are destroyed */
f09b04a0 JK	35	extern void fsnotify_wait_marks_destroyed(void);
35e48176	36
c28f7e56 EP	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);
a2d8bc6c EP	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
90586523	47	#endif /* __FS_NOTIFY_FSNOTIFY_H_ */