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317ddf37 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
b0643e59 DZ |
2 | |
3 | #ifndef BTRFS_DISCARD_H | |
4 | #define BTRFS_DISCARD_H | |
5 | ||
4aa9ad52 DZ |
6 | #include <linux/sizes.h> |
7 | ||
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8 | struct btrfs_fs_info; |
9 | struct btrfs_discard_ctl; | |
10 | struct btrfs_block_group; | |
11 | ||
4aa9ad52 | 12 | /* Discard size limits */ |
19b2a2c7 | 13 | #define BTRFS_ASYNC_DISCARD_DEFAULT_MAX_SIZE (SZ_64M) |
7fe6d45e DZ |
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); | |
4aa9ad52 | 19 | |
6e80d4f8 | 20 | /* Work operations */ |
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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); | |
b0643e59 | 27 | |
dfb79ddb | 28 | /* Update operations */ |
a2309300 | 29 | void btrfs_discard_calc_delay(struct btrfs_discard_ctl *discard_ctl); |
66b53bae | 30 | void btrfs_discard_update_discardable(struct btrfs_block_group *block_group); |
dfb79ddb | 31 | |
6e80d4f8 DZ |
32 | /* Setup/cleanup operations */ |
33 | void btrfs_discard_punt_unused_bgs_list(struct btrfs_fs_info *fs_info); | |
b0643e59 DZ |
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 |