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/* 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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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);
37void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func,
38		     btrfs_func_t ordered_func, btrfs_func_t ordered_free);
 
 
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);
43void btrfs_set_work_high_priority(struct btrfs_work *work);
44struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work);
45struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct __btrfs_workqueue *wq);
46bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq);
47void btrfs_flush_workqueue(struct btrfs_workqueue *wq);
48
49#endif