18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ci#ifndef BTRFS_DISCARD_H 48c2ecf20Sopenharmony_ci#define BTRFS_DISCARD_H 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci#include <linux/sizes.h> 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_cistruct btrfs_fs_info; 98c2ecf20Sopenharmony_cistruct btrfs_discard_ctl; 108c2ecf20Sopenharmony_cistruct btrfs_block_group; 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci/* Discard size limits */ 138c2ecf20Sopenharmony_ci#define BTRFS_ASYNC_DISCARD_DEFAULT_MAX_SIZE (SZ_64M) 148c2ecf20Sopenharmony_ci#define BTRFS_ASYNC_DISCARD_MAX_FILTER (SZ_1M) 158c2ecf20Sopenharmony_ci#define BTRFS_ASYNC_DISCARD_MIN_FILTER (SZ_32K) 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci/* List operations */ 188c2ecf20Sopenharmony_civoid btrfs_discard_check_filter(struct btrfs_block_group *block_group, u64 bytes); 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci/* Work operations */ 218c2ecf20Sopenharmony_civoid btrfs_discard_cancel_work(struct btrfs_discard_ctl *discard_ctl, 228c2ecf20Sopenharmony_ci struct btrfs_block_group *block_group); 238c2ecf20Sopenharmony_civoid btrfs_discard_queue_work(struct btrfs_discard_ctl *discard_ctl, 248c2ecf20Sopenharmony_ci struct btrfs_block_group *block_group); 258c2ecf20Sopenharmony_civoid btrfs_discard_schedule_work(struct btrfs_discard_ctl *discard_ctl, 268c2ecf20Sopenharmony_ci bool override); 278c2ecf20Sopenharmony_cibool btrfs_run_discard_work(struct btrfs_discard_ctl *discard_ctl); 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci/* Update operations */ 308c2ecf20Sopenharmony_civoid btrfs_discard_calc_delay(struct btrfs_discard_ctl *discard_ctl); 318c2ecf20Sopenharmony_civoid btrfs_discard_update_discardable(struct btrfs_block_group *block_group, 328c2ecf20Sopenharmony_ci struct btrfs_free_space_ctl *ctl); 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci/* Setup/cleanup operations */ 358c2ecf20Sopenharmony_civoid btrfs_discard_punt_unused_bgs_list(struct btrfs_fs_info *fs_info); 368c2ecf20Sopenharmony_civoid btrfs_discard_resume(struct btrfs_fs_info *fs_info); 378c2ecf20Sopenharmony_civoid btrfs_discard_stop(struct btrfs_fs_info *fs_info); 388c2ecf20Sopenharmony_civoid btrfs_discard_init(struct btrfs_fs_info *fs_info); 398c2ecf20Sopenharmony_civoid btrfs_discard_cleanup(struct btrfs_fs_info *fs_info); 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ci#endif 42