/* SPDX-License-Identifier: GPL-2.0 *//* * Copyright (C) 2007 Oracle.  All rights reserved. * Copyright (C) 2014 Fujitsu.  All rights reserved. */ #ifndef BTRFS_ASYNC_THREAD_H#define BTRFS_ASYNC_THREAD_H #include <linux/compiler_types.h>#include <linux/workqueue.h>#include <linux/list.h> struct btrfs_fs_info;struct btrfs_workqueue;struct btrfs_work; typedef void (*btrfs_func_t)(struct btrfs_work *arg);typedef void (*btrfs_ordered_func_t)(struct btrfs_work *arg, bool); struct btrfs_work {	btrfs_func_t func;	btrfs_ordered_func_t ordered_func; 	/* Don't touch things below */	struct work_struct normal_work;	struct list_head ordered_list;	struct btrfs_workqueue *wq;	unsigned long flags;}; struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info,					      const char *name,					      unsigned int flags,					      int limit_active,					      int thresh);struct btrfs_workqueue *btrfs_alloc_ordered_workqueue(				struct btrfs_fs_info *fs_info, const char *name,				unsigned int flags);void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func,		     btrfs_ordered_func_t ordered_func);void btrfs_queue_work(struct btrfs_workqueue *wq,		      struct btrfs_work *work);void btrfs_destroy_workqueue(struct btrfs_workqueue *wq);void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work);struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct btrfs_workqueue *wq);bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq);void btrfs_flush_workqueue(struct btrfs_workqueue *wq); #endif