include/linux/fs_pin.h

   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
  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 *);