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
12struct btrfs_fs_info;
13struct btrfs_workqueue;
14struct btrfs_work;
 
15typedef void (*btrfs_func_t)(struct btrfs_work *arg);
16typedef void (*btrfs_ordered_func_t)(struct btrfs_work *arg, bool);
17
18struct 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
29struct 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);
34struct btrfs_workqueue *btrfs_alloc_ordered_workqueue(
35				struct btrfs_fs_info *fs_info, const char *name,
36				unsigned int flags);
37void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func,
38		     btrfs_ordered_func_t ordered_func);
39void btrfs_queue_work(struct btrfs_workqueue *wq,
40		      struct btrfs_work *work);
41void btrfs_destroy_workqueue(struct btrfs_workqueue *wq);
42void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);
43struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work);
44struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct btrfs_workqueue *wq);
45bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq);
46void btrfs_flush_workqueue(struct btrfs_workqueue *wq);
47
48#endif

 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
14struct btrfs_fs_info;
15struct btrfs_workqueue;
16struct btrfs_work;
17
18typedef void (*btrfs_func_t)(struct btrfs_work *arg);
19typedef void (*btrfs_ordered_func_t)(struct btrfs_work *arg, bool);
20
21struct 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
32struct 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);
37struct btrfs_workqueue *btrfs_alloc_ordered_workqueue(
38				struct btrfs_fs_info *fs_info, const char *name,
39				unsigned int flags);
40void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func,
41		     btrfs_ordered_func_t ordered_func);
42void btrfs_queue_work(struct btrfs_workqueue *wq,
43		      struct btrfs_work *work);
44void btrfs_destroy_workqueue(struct btrfs_workqueue *wq);
45void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);
46struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work);
47struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct btrfs_workqueue *wq);
48bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq);
49void btrfs_flush_workqueue(struct btrfs_workqueue *wq);
50
51#endif