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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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