async-thread.h 1.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * Copyright (C) 2007 Oracle. All rights reserved.
  4. * Copyright (C) 2014 Fujitsu. All rights reserved.
  5. */
  6. #ifndef BTRFS_ASYNC_THREAD_H
  7. #define BTRFS_ASYNC_THREAD_H
  8. #include <linux/workqueue.h>
  9. struct btrfs_fs_info;
  10. struct btrfs_workqueue;
  11. /* Internal use only */
  12. struct __btrfs_workqueue;
  13. struct btrfs_work;
  14. typedef void (*btrfs_func_t)(struct btrfs_work *arg);
  15. typedef void (*btrfs_work_func_t)(struct work_struct *arg);
  16. struct btrfs_work {
  17. btrfs_func_t func;
  18. btrfs_func_t ordered_func;
  19. btrfs_func_t ordered_free;
  20. /* Don't touch things below */
  21. struct work_struct normal_work;
  22. struct list_head ordered_list;
  23. struct __btrfs_workqueue *wq;
  24. unsigned long flags;
  25. };
  26. struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info,
  27. const char *name,
  28. unsigned int flags,
  29. int limit_active,
  30. int thresh);
  31. void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func,
  32. btrfs_func_t ordered_func, btrfs_func_t ordered_free);
  33. void btrfs_queue_work(struct btrfs_workqueue *wq,
  34. struct btrfs_work *work);
  35. void btrfs_destroy_workqueue(struct btrfs_workqueue *wq);
  36. void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);
  37. void btrfs_set_work_high_priority(struct btrfs_work *work);
  38. struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work);
  39. struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct __btrfs_workqueue *wq);
  40. bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq);
  41. void btrfs_flush_workqueue(struct btrfs_workqueue *wq);
  42. #endif