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 | |
7 | #ifndef BTRFS_ASYNC_THREAD_H |
8 | #define BTRFS_ASYNC_THREAD_H |
9 | |
10 | #include <linux/workqueue.h> |
11 | |
12 | struct btrfs_fs_info; |
13 | struct btrfs_workqueue; |
14 | struct btrfs_work; |
15 | typedef void (*btrfs_func_t)(struct btrfs_work *arg); |
16 | typedef void (*btrfs_ordered_func_t)(struct btrfs_work *arg, bool); |
17 | |
18 | struct btrfs_work { |
19 | btrfs_func_t func; |
20 | btrfs_ordered_func_t ordered_func; |
21 | |
22 | /* Don't touch things below */ |
23 | struct work_struct normal_work; |
24 | struct list_head ordered_list; |
25 | struct btrfs_workqueue *wq; |
26 | unsigned long flags; |
27 | }; |
28 | |
29 | struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, |
30 | const char *name, |
31 | unsigned int flags, |
32 | int limit_active, |
33 | int thresh); |
34 | struct btrfs_workqueue *btrfs_alloc_ordered_workqueue( |
35 | struct btrfs_fs_info *fs_info, const char *name, |
36 | unsigned int flags); |
37 | void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func, |
38 | btrfs_ordered_func_t ordered_func); |
39 | void btrfs_queue_work(struct btrfs_workqueue *wq, |
40 | struct btrfs_work *work); |
41 | void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); |
42 | void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); |
43 | struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work); |
44 | struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct btrfs_workqueue *wq); |
45 | bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq); |
46 | void btrfs_flush_workqueue(struct btrfs_workqueue *wq); |
47 | |
48 | #endif |
49 | |