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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
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;
14/* Internal use only */
15struct __btrfs_workqueue;
16struct btrfs_work;
17typedef void (*btrfs_func_t)(struct btrfs_work *arg);
18typedef void (*btrfs_work_func_t)(struct work_struct *arg);
19
20struct btrfs_work {
21 btrfs_func_t func;
22 btrfs_func_t ordered_func;
23 btrfs_func_t ordered_free;
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#define BTRFS_WORK_HELPER_PROTO(name) \
33void btrfs_##name(struct work_struct *arg)
34
35BTRFS_WORK_HELPER_PROTO(worker_helper);
36BTRFS_WORK_HELPER_PROTO(delalloc_helper);
37BTRFS_WORK_HELPER_PROTO(flush_delalloc_helper);
38BTRFS_WORK_HELPER_PROTO(cache_helper);
39BTRFS_WORK_HELPER_PROTO(submit_helper);
40BTRFS_WORK_HELPER_PROTO(fixup_helper);
41BTRFS_WORK_HELPER_PROTO(endio_helper);
42BTRFS_WORK_HELPER_PROTO(endio_meta_helper);
43BTRFS_WORK_HELPER_PROTO(endio_meta_write_helper);
44BTRFS_WORK_HELPER_PROTO(endio_raid56_helper);
45BTRFS_WORK_HELPER_PROTO(endio_repair_helper);
46BTRFS_WORK_HELPER_PROTO(rmw_helper);
47BTRFS_WORK_HELPER_PROTO(endio_write_helper);
48BTRFS_WORK_HELPER_PROTO(freespace_write_helper);
49BTRFS_WORK_HELPER_PROTO(delayed_meta_helper);
50BTRFS_WORK_HELPER_PROTO(readahead_helper);
51BTRFS_WORK_HELPER_PROTO(qgroup_rescan_helper);
52BTRFS_WORK_HELPER_PROTO(extent_refs_helper);
53BTRFS_WORK_HELPER_PROTO(scrub_helper);
54BTRFS_WORK_HELPER_PROTO(scrubwrc_helper);
55BTRFS_WORK_HELPER_PROTO(scrubnc_helper);
56BTRFS_WORK_HELPER_PROTO(scrubparity_helper);
57
58
59struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info,
60 const char *name,
61 unsigned int flags,
62 int limit_active,
63 int thresh);
64void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t helper,
65 btrfs_func_t func,
66 btrfs_func_t ordered_func,
67 btrfs_func_t ordered_free);
68void btrfs_queue_work(struct btrfs_workqueue *wq,
69 struct btrfs_work *work);
70void btrfs_destroy_workqueue(struct btrfs_workqueue *wq);
71void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);
72void btrfs_set_work_high_priority(struct btrfs_work *work);
73struct btrfs_fs_info *btrfs_work_owner(const struct btrfs_work *work);
74struct btrfs_fs_info *btrfs_workqueue_owner(const struct __btrfs_workqueue *wq);
75bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq);
76
77#endif
1/*
2 * Copyright (C) 2007 Oracle. All rights reserved.
3 * Copyright (C) 2014 Fujitsu. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public
7 * License v2 as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public
15 * License along with this program; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 021110-1307, USA.
18 */
19
20#ifndef __BTRFS_ASYNC_THREAD_
21#define __BTRFS_ASYNC_THREAD_
22#include <linux/workqueue.h>
23
24struct btrfs_workqueue;
25/* Internal use only */
26struct __btrfs_workqueue;
27struct btrfs_work;
28typedef void (*btrfs_func_t)(struct btrfs_work *arg);
29typedef void (*btrfs_work_func_t)(struct work_struct *arg);
30
31struct btrfs_work {
32 btrfs_func_t func;
33 btrfs_func_t ordered_func;
34 btrfs_func_t ordered_free;
35
36 /* Don't touch things below */
37 struct work_struct normal_work;
38 struct list_head ordered_list;
39 struct __btrfs_workqueue *wq;
40 unsigned long flags;
41};
42
43#define BTRFS_WORK_HELPER_PROTO(name) \
44void btrfs_##name(struct work_struct *arg)
45
46BTRFS_WORK_HELPER_PROTO(worker_helper);
47BTRFS_WORK_HELPER_PROTO(delalloc_helper);
48BTRFS_WORK_HELPER_PROTO(flush_delalloc_helper);
49BTRFS_WORK_HELPER_PROTO(cache_helper);
50BTRFS_WORK_HELPER_PROTO(submit_helper);
51BTRFS_WORK_HELPER_PROTO(fixup_helper);
52BTRFS_WORK_HELPER_PROTO(endio_helper);
53BTRFS_WORK_HELPER_PROTO(endio_meta_helper);
54BTRFS_WORK_HELPER_PROTO(endio_meta_write_helper);
55BTRFS_WORK_HELPER_PROTO(endio_raid56_helper);
56BTRFS_WORK_HELPER_PROTO(endio_repair_helper);
57BTRFS_WORK_HELPER_PROTO(rmw_helper);
58BTRFS_WORK_HELPER_PROTO(endio_write_helper);
59BTRFS_WORK_HELPER_PROTO(freespace_write_helper);
60BTRFS_WORK_HELPER_PROTO(delayed_meta_helper);
61BTRFS_WORK_HELPER_PROTO(readahead_helper);
62BTRFS_WORK_HELPER_PROTO(qgroup_rescan_helper);
63BTRFS_WORK_HELPER_PROTO(extent_refs_helper);
64BTRFS_WORK_HELPER_PROTO(scrub_helper);
65BTRFS_WORK_HELPER_PROTO(scrubwrc_helper);
66BTRFS_WORK_HELPER_PROTO(scrubnc_helper);
67BTRFS_WORK_HELPER_PROTO(scrubparity_helper);
68
69
70struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name,
71 unsigned int flags,
72 int limit_active,
73 int thresh);
74void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t helper,
75 btrfs_func_t func,
76 btrfs_func_t ordered_func,
77 btrfs_func_t ordered_free);
78void btrfs_queue_work(struct btrfs_workqueue *wq,
79 struct btrfs_work *work);
80void btrfs_destroy_workqueue(struct btrfs_workqueue *wq);
81void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);
82void btrfs_set_work_high_priority(struct btrfs_work *work);
83#endif