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/compiler_types.h> |
11 | #include <linux/workqueue.h> |
12 | #include <linux/list.h> |
13 | |
14 | struct btrfs_fs_info; |
15 | struct btrfs_workqueue; |
16 | struct btrfs_work; |
17 | |
18 | typedef void (*btrfs_func_t)(struct btrfs_work *arg); |
19 | typedef void (*btrfs_ordered_func_t)(struct btrfs_work *arg, bool); |
20 | |
21 | struct btrfs_work { |
22 | btrfs_func_t func; |
23 | btrfs_ordered_func_t ordered_func; |
24 | |
25 | /* Don't touch things below */ |
26 | struct work_struct normal_work; |
27 | struct list_head ordered_list; |
28 | struct btrfs_workqueue *wq; |
29 | unsigned long flags; |
30 | }; |
31 | |
32 | struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, |
33 | const char *name, |
34 | unsigned int flags, |
35 | int limit_active, |
36 | int thresh); |
37 | struct btrfs_workqueue *btrfs_alloc_ordered_workqueue( |
38 | struct btrfs_fs_info *fs_info, const char *name, |
39 | unsigned int flags); |
40 | void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func, |
41 | btrfs_ordered_func_t ordered_func); |
42 | void btrfs_queue_work(struct btrfs_workqueue *wq, |
43 | struct btrfs_work *work); |
44 | void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); |
45 | void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); |
46 | struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work); |
47 | struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct btrfs_workqueue *wq); |
48 | bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq); |
49 | void btrfs_flush_workqueue(struct btrfs_workqueue *wq); |
50 | |
51 | #endif |
52 | |