/* 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); /* 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