xref: /linux-6.15/include/linux/fs_pin.h (revision 59eda0e0) 
1*59eda0e0SAl Viro #include <linux/wait.h>
2efb170c2SAl Viro 
3efb170c2SAl Viro struct fs_pin {
4*59eda0e0SAl Viro 	wait_queue_head_t	wait;
5*59eda0e0SAl Viro 	int			done;
6efb170c2SAl Viro 	struct hlist_node	s_list;
7efb170c2SAl Viro 	struct hlist_node	m_list;
8efb170c2SAl Viro 	void (*kill)(struct fs_pin *);
9efb170c2SAl Viro };
10efb170c2SAl Viro 
11*59eda0e0SAl Viro struct vfsmount;
12*59eda0e0SAl Viro 
13*59eda0e0SAl Viro static inline void init_fs_pin(struct fs_pin *p, void (*kill)(struct fs_pin *))
14*59eda0e0SAl Viro {
15*59eda0e0SAl Viro 	init_waitqueue_head(&p->wait);
16*59eda0e0SAl Viro 	p->kill = kill;
17*59eda0e0SAl Viro }
18*59eda0e0SAl Viro 
19efb170c2SAl Viro void pin_remove(struct fs_pin *);
20fdab684dSAl Viro void pin_insert_group(struct fs_pin *, struct vfsmount *, struct hlist_head *);
21efb170c2SAl Viro void pin_insert(struct fs_pin *, struct vfsmount *);
22*59eda0e0SAl Viro void pin_kill(struct fs_pin *);
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