/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/wait.h>

struct fs_pin {
        wait_queue_head_t       wait;
        int                     done;
        struct hlist_node       s_list;
        struct hlist_node       m_list;
        void (*kill)(struct fs_pin *);
};

struct vfsmount;

static inline void init_fs_pin(struct fs_pin *p, void (*kill)(struct fs_pin *))
{
        init_waitqueue_head(&p->wait);
        INIT_HLIST_NODE(&p->s_list);
        INIT_HLIST_NODE(&p->m_list);
        p->kill = kill;
}

void pin_remove(struct fs_pin *);
void pin_insert(struct fs_pin *, struct vfsmount *);
void pin_kill(struct fs_pin *);