1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | |
3 | #ifndef BTRFS_DISCARD_H |
4 | #define BTRFS_DISCARD_H |
5 | |
6 | #include <linux/sizes.h> |
7 | |
8 | struct btrfs_fs_info; |
9 | struct btrfs_discard_ctl; |
10 | struct btrfs_block_group; |
11 | |
12 | /* Discard size limits */ |
13 | #define BTRFS_ASYNC_DISCARD_DEFAULT_MAX_SIZE (SZ_64M) |
14 | #define BTRFS_ASYNC_DISCARD_MAX_FILTER (SZ_1M) |
15 | #define BTRFS_ASYNC_DISCARD_MIN_FILTER (SZ_32K) |
16 | |
17 | /* List operations */ |
18 | void btrfs_discard_check_filter(struct btrfs_block_group *block_group, u64 bytes); |
19 | |
20 | /* Work operations */ |
21 | void btrfs_discard_cancel_work(struct btrfs_discard_ctl *discard_ctl, |
22 | struct btrfs_block_group *block_group); |
23 | void btrfs_discard_queue_work(struct btrfs_discard_ctl *discard_ctl, |
24 | struct btrfs_block_group *block_group); |
25 | void btrfs_discard_schedule_work(struct btrfs_discard_ctl *discard_ctl, |
26 | bool override); |
27 | |
28 | /* Update operations */ |
29 | void btrfs_discard_calc_delay(struct btrfs_discard_ctl *discard_ctl); |
30 | void btrfs_discard_update_discardable(struct btrfs_block_group *block_group); |
31 | |
32 | /* Setup/cleanup operations */ |
33 | void btrfs_discard_punt_unused_bgs_list(struct btrfs_fs_info *fs_info); |
34 | void btrfs_discard_resume(struct btrfs_fs_info *fs_info); |
35 | void btrfs_discard_stop(struct btrfs_fs_info *fs_info); |
36 | void btrfs_discard_init(struct btrfs_fs_info *fs_info); |
37 | void btrfs_discard_cleanup(struct btrfs_fs_info *fs_info); |
38 | |
39 | #endif |
40 | |