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