drivers/md/dm-vdo/thread-registry.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright 2023 Red Hat
   4  */
   5
   6 #ifndef VDO_THREAD_REGISTRY_H
   7 #define VDO_THREAD_REGISTRY_H
   8
   9 #include <linux/list.h>
  10 #include <linux/spinlock.h>
  11
  12 struct thread_registry {
  13         struct list_head links;
  14         spinlock_t lock;
  15 };
  16
  17 struct registered_thread {
  18         struct list_head links;
  19         const void *pointer;
  20         struct task_struct *task;
  21 };
  22
  23 void vdo_initialize_thread_registry(struct thread_registry *registry);
  24
  25 void vdo_register_thread(struct thread_registry *registry,
  26                          struct registered_thread *new_thread, const void *pointer);
  27
  28 void vdo_unregister_thread(struct thread_registry *registry);
  29
  30 const void *vdo_lookup_thread(struct thread_registry *registry);
  31
  32 #endif /* VDO_THREAD_REGISTRY_H */