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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_H8#define BTRFS_ASYNC_THREAD_H9 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#endif52