1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <linux/wait.h>
3 
4 struct fs_pin {
5 	wait_queue_head_t	wait;
6 	int			done;
7 	struct hlist_node	s_list;
8 	struct hlist_node	m_list;
9 	void (*kill)(struct fs_pin *);
10 };
11 
12 struct vfsmount;
13 
init_fs_pin(struct fs_pin * p,void (* kill)(struct fs_pin *))14 static inline void init_fs_pin(struct fs_pin *p, void (*kill)(struct fs_pin *))
15 {
16 	init_waitqueue_head(&p->wait);
17 	INIT_HLIST_NODE(&p->s_list);
18 	INIT_HLIST_NODE(&p->m_list);
19 	p->kill = kill;
20 }
21 
22 void pin_remove(struct fs_pin *);
23 void pin_insert(struct fs_pin *, struct vfsmount *);
24 void pin_kill(struct fs_pin *);
25