| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2007 Oracle. All rights reserved. |
| 3 | * Copyright (C) 2014 Fujitsu. All rights reserved. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public |
| 7 | * License v2 as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public |
| 15 | * License along with this program; if not, write to the |
| 16 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 17 | * Boston, MA 021110-1307, USA. |
| 18 | */ |
| 19 | |
| 20 | #ifndef __BTRFS_ASYNC_THREAD_ |
| 21 | #define __BTRFS_ASYNC_THREAD_ |
| 22 | #include <linux/workqueue.h> |
| 23 | |
| 24 | struct btrfs_workqueue; |
| 25 | /* Internal use only */ |
| 26 | struct __btrfs_workqueue; |
| 27 | struct btrfs_work; |
| 28 | typedef void (*btrfs_func_t)(struct btrfs_work *arg); |
| 29 | typedef void (*btrfs_work_func_t)(struct work_struct *arg); |
| 30 | |
| 31 | struct btrfs_work { |
| 32 | btrfs_func_t func; |
| 33 | btrfs_func_t ordered_func; |
| 34 | btrfs_func_t ordered_free; |
| 35 | |
| 36 | /* Don't touch things below */ |
| 37 | struct work_struct normal_work; |
| 38 | struct list_head ordered_list; |
| 39 | struct __btrfs_workqueue *wq; |
| 40 | unsigned long flags; |
| 41 | }; |
| 42 | |
| 43 | #define BTRFS_WORK_HELPER_PROTO(name) \ |
| 44 | void btrfs_##name(struct work_struct *arg) |
| 45 | |
| 46 | BTRFS_WORK_HELPER_PROTO(worker_helper); |
| 47 | BTRFS_WORK_HELPER_PROTO(delalloc_helper); |
| 48 | BTRFS_WORK_HELPER_PROTO(flush_delalloc_helper); |
| 49 | BTRFS_WORK_HELPER_PROTO(cache_helper); |
| 50 | BTRFS_WORK_HELPER_PROTO(submit_helper); |
| 51 | BTRFS_WORK_HELPER_PROTO(fixup_helper); |
| 52 | BTRFS_WORK_HELPER_PROTO(endio_helper); |
| 53 | BTRFS_WORK_HELPER_PROTO(endio_meta_helper); |
| 54 | BTRFS_WORK_HELPER_PROTO(endio_meta_write_helper); |
| 55 | BTRFS_WORK_HELPER_PROTO(endio_raid56_helper); |
| 56 | BTRFS_WORK_HELPER_PROTO(endio_repair_helper); |
| 57 | BTRFS_WORK_HELPER_PROTO(rmw_helper); |
| 58 | BTRFS_WORK_HELPER_PROTO(endio_write_helper); |
| 59 | BTRFS_WORK_HELPER_PROTO(freespace_write_helper); |
| 60 | BTRFS_WORK_HELPER_PROTO(delayed_meta_helper); |
| 61 | BTRFS_WORK_HELPER_PROTO(readahead_helper); |
| 62 | BTRFS_WORK_HELPER_PROTO(qgroup_rescan_helper); |
| 63 | BTRFS_WORK_HELPER_PROTO(extent_refs_helper); |
| 64 | BTRFS_WORK_HELPER_PROTO(scrub_helper); |
| 65 | BTRFS_WORK_HELPER_PROTO(scrubwrc_helper); |
| 66 | BTRFS_WORK_HELPER_PROTO(scrubnc_helper); |
| 67 | BTRFS_WORK_HELPER_PROTO(scrubparity_helper); |
| 68 | |
| 69 | |
| 70 | struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name, |
| 71 | unsigned int flags, |
| 72 | int limit_active, |
| 73 | int thresh); |
| 74 | void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t helper, |
| 75 | btrfs_func_t func, |
| 76 | btrfs_func_t ordered_func, |
| 77 | btrfs_func_t ordered_free); |
| 78 | void btrfs_queue_work(struct btrfs_workqueue *wq, |
| 79 | struct btrfs_work *work); |
| 80 | void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); |
| 81 | void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); |
| 82 | void btrfs_set_work_high_priority(struct btrfs_work *work); |
| 83 | bool btrfs_workqueue_normal_congested(struct btrfs_workqueue *wq); |
| 84 | #endif |