projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| b0643e59 DZ |
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 */ |
| b0643e59 DZ |
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 | bool btrfs_run_discard_work(struct btrfs_discard_ctl *discard_ctl); | |
| 28 | ||
| dfb79ddb | 29 | /* Update operations */ |
| a2309300 | 30 | void btrfs_discard_calc_delay(struct btrfs_discard_ctl *discard_ctl); |
| 66b53bae | 31 | void btrfs_discard_update_discardable(struct btrfs_block_group *block_group); |
| dfb79ddb | 32 | |
| 6e80d4f8 DZ |
33 | /* Setup/cleanup operations */ |
| 34 | void btrfs_discard_punt_unused_bgs_list(struct btrfs_fs_info *fs_info); | |
| b0643e59 DZ |
35 | void btrfs_discard_resume(struct btrfs_fs_info *fs_info); |
| 36 | void btrfs_discard_stop(struct btrfs_fs_info *fs_info); | |
| 37 | void btrfs_discard_init(struct btrfs_fs_info *fs_info); | |
| 38 | void btrfs_discard_cleanup(struct btrfs_fs_info *fs_info); | |
| 39 | ||
| 40 | #endif |