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- /* 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
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