1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2007 Oracle. All rights reserved. 4*4882a593Smuzhiyun * Copyright (C) 2014 Fujitsu. All rights reserved. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef BTRFS_ASYNC_THREAD_H 8*4882a593Smuzhiyun #define BTRFS_ASYNC_THREAD_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <linux/workqueue.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun struct btrfs_fs_info; 13*4882a593Smuzhiyun struct btrfs_workqueue; 14*4882a593Smuzhiyun /* Internal use only */ 15*4882a593Smuzhiyun struct __btrfs_workqueue; 16*4882a593Smuzhiyun struct btrfs_work; 17*4882a593Smuzhiyun typedef void (*btrfs_func_t)(struct btrfs_work *arg); 18*4882a593Smuzhiyun typedef void (*btrfs_work_func_t)(struct work_struct *arg); 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun struct btrfs_work { 21*4882a593Smuzhiyun btrfs_func_t func; 22*4882a593Smuzhiyun btrfs_func_t ordered_func; 23*4882a593Smuzhiyun btrfs_func_t ordered_free; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun /* Don't touch things below */ 26*4882a593Smuzhiyun struct work_struct normal_work; 27*4882a593Smuzhiyun struct list_head ordered_list; 28*4882a593Smuzhiyun struct __btrfs_workqueue *wq; 29*4882a593Smuzhiyun unsigned long flags; 30*4882a593Smuzhiyun }; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, 33*4882a593Smuzhiyun const char *name, 34*4882a593Smuzhiyun unsigned int flags, 35*4882a593Smuzhiyun int limit_active, 36*4882a593Smuzhiyun int thresh); 37*4882a593Smuzhiyun void btrfs_init_work(struct btrfs_work *work, btrfs_func_t func, 38*4882a593Smuzhiyun btrfs_func_t ordered_func, btrfs_func_t ordered_free); 39*4882a593Smuzhiyun void btrfs_queue_work(struct btrfs_workqueue *wq, 40*4882a593Smuzhiyun struct btrfs_work *work); 41*4882a593Smuzhiyun void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); 42*4882a593Smuzhiyun void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); 43*4882a593Smuzhiyun void btrfs_set_work_high_priority(struct btrfs_work *work); 44*4882a593Smuzhiyun struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work); 45*4882a593Smuzhiyun struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct __btrfs_workqueue *wq); 46*4882a593Smuzhiyun bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq); 47*4882a593Smuzhiyun void btrfs_flush_workqueue(struct btrfs_workqueue *wq); 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #endif 50