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