/* 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/workqueue.h> struct btrfs_fs_info; struct btrfs_workqueue; /* Internal use only */ struct __btrfs_workqueue; struct btrfs_work; typedef void (*btrfs_func_t)(struct btrfs_work *arg); typedef void (*btrfs_work_func_t)(struct work_struct *arg); struct btrfs_work { btrfs_func_t func; btrfs_func_t ordered_func; btrfs_func_t ordered_free; /* Don't touch things below */ struct work_struct normal_work; struct list_head ordered_list; struct __btrfs_workqueue *wq; unsigned long flags; }; #define BTRFS_WORK_HELPER_PROTO(name) \ void btrfs_##name(struct work_struct *arg) BTRFS_WORK_HELPER_PROTO(worker_helper); BTRFS_WORK_HELPER_PROTO(delalloc_helper); BTRFS_WORK_HELPER_PROTO(flush_delalloc_helper); BTRFS_WORK_HELPER_PROTO(cache_helper); BTRFS_WORK_HELPER_PROTO(submit_helper); BTRFS_WORK_HELPER_PROTO(fixup_helper); BTRFS_WORK_HELPER_PROTO(endio_helper); BTRFS_WORK_HELPER_PROTO(endio_meta_helper); BTRFS_WORK_HELPER_PROTO(endio_meta_write_helper); BTRFS_WORK_HELPER_PROTO(endio_raid56_helper); BTRFS_WORK_HELPER_PROTO(endio_repair_helper); BTRFS_WORK_HELPER_PROTO(rmw_helper); BTRFS_WORK_HELPER_PROTO(endio_write_helper); BTRFS_WORK_HELPER_PROTO(freespace_write_helper); BTRFS_WORK_HELPER_PROTO(delayed_meta_helper); BTRFS_WORK_HELPER_PROTO(readahead_helper); BTRFS_WORK_HELPER_PROTO(qgroup_rescan_helper); BTRFS_WORK_HELPER_PROTO(extent_refs_helper); BTRFS_WORK_HELPER_PROTO(scrub_helper); BTRFS_WORK_HELPER_PROTO(scrubwrc_helper); BTRFS_WORK_HELPER_PROTO(scrubnc_helper); BTRFS_WORK_HELPER_PROTO(scrubparity_helper); struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, const char *name, unsigned int flags, int limit_active, int thresh); void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t helper, btrfs_func_t func, btrfs_func_t ordered_func, btrfs_func_t ordered_free); 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); void btrfs_set_work_high_priority(struct btrfs_work *work); struct btrfs_fs_info *btrfs_work_owner(const struct btrfs_work *work); struct btrfs_fs_info *btrfs_workqueue_owner(const struct __btrfs_workqueue *wq); bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq); #endif