| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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_H |
| 8 | #define BTRFS_ASYNC_THREAD_H |
| 9 | |
| 10 | #include <linux/workqueue.h> |
| 11 | |
| 12 | struct btrfs_fs_info; |
| 13 | struct btrfs_workqueue; |
| 14 | /* Internal use only */ |
| 15 | struct __btrfs_workqueue; |
| 16 | struct btrfs_work; |
| 17 | typedef void (*btrfs_func_t)(struct btrfs_work *arg); |
| 18 | typedef void (*btrfs_work_func_t)(struct work_struct *arg); |
| 19 | |
| 20 | struct btrfs_work { |
| 21 | btrfs_func_t func; |
| 22 | btrfs_func_t ordered_func; |
| 23 | btrfs_func_t ordered_free; |
| 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 | |
| 32 | #define BTRFS_WORK_HELPER_PROTO(name) \ |
| 33 | void btrfs_##name(struct work_struct *arg) |
| 34 | |
| 35 | BTRFS_WORK_HELPER_PROTO(worker_helper); |
| 36 | BTRFS_WORK_HELPER_PROTO(delalloc_helper); |
| 37 | BTRFS_WORK_HELPER_PROTO(flush_delalloc_helper); |
| 38 | BTRFS_WORK_HELPER_PROTO(cache_helper); |
| 39 | BTRFS_WORK_HELPER_PROTO(submit_helper); |
| 40 | BTRFS_WORK_HELPER_PROTO(fixup_helper); |
| 41 | BTRFS_WORK_HELPER_PROTO(endio_helper); |
| 42 | BTRFS_WORK_HELPER_PROTO(endio_meta_helper); |
| 43 | BTRFS_WORK_HELPER_PROTO(endio_meta_write_helper); |
| 44 | BTRFS_WORK_HELPER_PROTO(endio_raid56_helper); |
| 45 | BTRFS_WORK_HELPER_PROTO(endio_repair_helper); |
| 46 | BTRFS_WORK_HELPER_PROTO(rmw_helper); |
| 47 | BTRFS_WORK_HELPER_PROTO(endio_write_helper); |
| 48 | BTRFS_WORK_HELPER_PROTO(freespace_write_helper); |
| 49 | BTRFS_WORK_HELPER_PROTO(delayed_meta_helper); |
| 50 | BTRFS_WORK_HELPER_PROTO(readahead_helper); |
| 51 | BTRFS_WORK_HELPER_PROTO(qgroup_rescan_helper); |
| 52 | BTRFS_WORK_HELPER_PROTO(extent_refs_helper); |
| 53 | BTRFS_WORK_HELPER_PROTO(scrub_helper); |
| 54 | BTRFS_WORK_HELPER_PROTO(scrubwrc_helper); |
| 55 | BTRFS_WORK_HELPER_PROTO(scrubnc_helper); |
| 56 | BTRFS_WORK_HELPER_PROTO(scrubparity_helper); |
| 57 | |
| 58 | |
| 59 | struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, |
| 60 | const char *name, |
| 61 | unsigned int flags, |
| 62 | int limit_active, |
| 63 | int thresh); |
| 64 | void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t helper, |
| 65 | btrfs_func_t func, |
| 66 | btrfs_func_t ordered_func, |
| 67 | btrfs_func_t ordered_free); |
| 68 | void btrfs_queue_work(struct btrfs_workqueue *wq, |
| 69 | struct btrfs_work *work); |
| 70 | void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); |
| 71 | void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); |
| 72 | void btrfs_set_work_high_priority(struct btrfs_work *work); |
| 73 | struct btrfs_fs_info *btrfs_work_owner(const struct btrfs_work *work); |
| 74 | struct btrfs_fs_info *btrfs_workqueue_owner(const struct __btrfs_workqueue *wq); |
| 75 | bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq); |
| 76 | |
| 77 | #endif |