| // SPDX-License-Identifier: GPL-2.0 |
| |
| #ifndef BTRFS_DISCARD_H |
| #define BTRFS_DISCARD_H |
| |
| #include <linux/sizes.h> |
| |
| struct btrfs_fs_info; |
| struct btrfs_discard_ctl; |
| struct btrfs_block_group; |
| |
| /* Discard size limits */ |
| #define BTRFS_ASYNC_DISCARD_DEFAULT_MAX_SIZE (SZ_64M) |
| #define BTRFS_ASYNC_DISCARD_MAX_FILTER (SZ_1M) |
| #define BTRFS_ASYNC_DISCARD_MIN_FILTER (SZ_32K) |
| |
| /* List operations */ |
| void btrfs_discard_check_filter(struct btrfs_block_group *block_group, u64 bytes); |
| |
| /* Work operations */ |
| void btrfs_discard_cancel_work(struct btrfs_discard_ctl *discard_ctl, |
| struct btrfs_block_group *block_group); |
| void btrfs_discard_queue_work(struct btrfs_discard_ctl *discard_ctl, |
| struct btrfs_block_group *block_group); |
| void btrfs_discard_schedule_work(struct btrfs_discard_ctl *discard_ctl, |
| bool override); |
| bool btrfs_run_discard_work(struct btrfs_discard_ctl *discard_ctl); |
| |
| /* Update operations */ |
| void btrfs_discard_calc_delay(struct btrfs_discard_ctl *discard_ctl); |
| void btrfs_discard_update_discardable(struct btrfs_block_group *block_group, |
| struct btrfs_free_space_ctl *ctl); |
| |
| /* Setup/cleanup operations */ |
| void btrfs_discard_punt_unused_bgs_list(struct btrfs_fs_info *fs_info); |
| void btrfs_discard_resume(struct btrfs_fs_info *fs_info); |
| void btrfs_discard_stop(struct btrfs_fs_info *fs_info); |
| void btrfs_discard_init(struct btrfs_fs_info *fs_info); |
| void btrfs_discard_cleanup(struct btrfs_fs_info *fs_info); |
| |
| #endif |
