1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2007 Oracle. All rights reserved.
4 * Copyright (C) 2014 Fujitsu. All rights reserved.
7 #ifndef BTRFS_ASYNC_THREAD_H
8 #define BTRFS_ASYNC_THREAD_H
10 #include <linux/workqueue.h>
13 struct btrfs_workqueue;
15 typedef void (*btrfs_func_t)(struct btrfs_work *arg);
16 typedef void (*btrfs_work_func_t)(struct work_struct *arg);
20 btrfs_func_t ordered_func;
21 btrfs_func_t ordered_free;
23 /* Don't touch things below */
24 struct work_struct normal_work;
25 struct list_head ordered_list;
26 struct btrfs_workqueue *wq;
30 struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info,
35 void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func,
36 btrfs_func_t ordered_func, btrfs_func_t ordered_free);
37 void btrfs_queue_work(struct btrfs_workqueue *wq,
38 struct btrfs_work *work);
39 void btrfs_destroy_workqueue(struct btrfs_workqueue *wq);
40 void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);
41 struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work);
42 struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct btrfs_workqueue *wq);
43 bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq);
44 void btrfs_flush_workqueue(struct btrfs_workqueue *wq);