1*9888c340SDavid Sterba /* SPDX-License-Identifier: GPL-2.0 */ 28b712842SChris Mason /* 38b712842SChris Mason * Copyright (C) 2007 Oracle. All rights reserved. 408a9ff32SQu Wenruo * Copyright (C) 2014 Fujitsu. All rights reserved. 58b712842SChris Mason */ 68b712842SChris Mason 7*9888c340SDavid Sterba #ifndef BTRFS_ASYNC_THREAD_H 8*9888c340SDavid Sterba #define BTRFS_ASYNC_THREAD_H 9*9888c340SDavid Sterba 109e0af237SLiu Bo #include <linux/workqueue.h> 118b712842SChris Mason 12cb001095SJeff Mahoney struct btrfs_fs_info; 13d458b054SQu Wenruo struct btrfs_workqueue; 141ca08976SQu Wenruo /* Internal use only */ 15d458b054SQu Wenruo struct __btrfs_workqueue; 166db8914fSQu Wenruo struct btrfs_work; 176db8914fSQu Wenruo typedef void (*btrfs_func_t)(struct btrfs_work *arg); 189e0af237SLiu Bo typedef void (*btrfs_work_func_t)(struct work_struct *arg); 1908a9ff32SQu Wenruo 20d458b054SQu Wenruo struct btrfs_work { 216db8914fSQu Wenruo btrfs_func_t func; 226db8914fSQu Wenruo btrfs_func_t ordered_func; 236db8914fSQu Wenruo btrfs_func_t ordered_free; 2408a9ff32SQu Wenruo 2508a9ff32SQu Wenruo /* Don't touch things below */ 2608a9ff32SQu Wenruo struct work_struct normal_work; 2708a9ff32SQu Wenruo struct list_head ordered_list; 28d458b054SQu Wenruo struct __btrfs_workqueue *wq; 2908a9ff32SQu Wenruo unsigned long flags; 3008a9ff32SQu Wenruo }; 3108a9ff32SQu Wenruo 329e0af237SLiu Bo #define BTRFS_WORK_HELPER_PROTO(name) \ 339e0af237SLiu Bo void btrfs_##name(struct work_struct *arg) 349e0af237SLiu Bo 359e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(worker_helper); 369e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(delalloc_helper); 379e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(flush_delalloc_helper); 389e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(cache_helper); 399e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(submit_helper); 409e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(fixup_helper); 419e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(endio_helper); 429e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(endio_meta_helper); 439e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(endio_meta_write_helper); 449e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(endio_raid56_helper); 458b110e39SMiao Xie BTRFS_WORK_HELPER_PROTO(endio_repair_helper); 469e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(rmw_helper); 479e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(endio_write_helper); 489e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(freespace_write_helper); 499e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(delayed_meta_helper); 509e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(readahead_helper); 519e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(qgroup_rescan_helper); 529e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(extent_refs_helper); 539e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(scrub_helper); 549e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(scrubwrc_helper); 559e0af237SLiu Bo BTRFS_WORK_HELPER_PROTO(scrubnc_helper); 5620b2e302SZhao Lei BTRFS_WORK_HELPER_PROTO(scrubparity_helper); 5720b2e302SZhao Lei 589e0af237SLiu Bo 59cb001095SJeff Mahoney struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, 60cb001095SJeff Mahoney const char *name, 616f011058SDavid Sterba unsigned int flags, 62c6dd6ea5SQu Wenruo int limit_active, 630bd9289cSQu Wenruo int thresh); 649e0af237SLiu Bo void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t helper, 656db8914fSQu Wenruo btrfs_func_t func, 666db8914fSQu Wenruo btrfs_func_t ordered_func, 676db8914fSQu Wenruo btrfs_func_t ordered_free); 68d458b054SQu Wenruo void btrfs_queue_work(struct btrfs_workqueue *wq, 69d458b054SQu Wenruo struct btrfs_work *work); 70d458b054SQu Wenruo void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); 71d458b054SQu Wenruo void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); 72d458b054SQu Wenruo void btrfs_set_work_high_priority(struct btrfs_work *work); 739a35b637SJeff Mahoney struct btrfs_fs_info *btrfs_work_owner(const struct btrfs_work *work); 749a35b637SJeff Mahoney struct btrfs_fs_info *btrfs_workqueue_owner(const struct __btrfs_workqueue *wq); 759a35b637SJeff Mahoney bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq); 76*9888c340SDavid Sterba 778b712842SChris Mason #endif 78