segment.h (aaccf3c97418f169afdbb5855e9cbcbda34e90fd) segment.h (4354994f097d068a894aa1a0860da54571df3582)
1// SPDX-License-Identifier: GPL-2.0
1/*
2 * fs/f2fs/segment.h
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
2/*
3 * fs/f2fs/segment.h
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#include <linux/blkdev.h>
12#include <linux/backing-dev.h>
13
14/* constant macro */
15#define NULL_SEGNO ((unsigned int)(~0))
16#define NULL_SECNO ((unsigned int)(~0))
17

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337 * segments, f2fs manages two counting structures separately.
338 */
339 if (use_section && sbi->segs_per_sec > 1)
340 return get_sec_entry(sbi, segno)->valid_blocks;
341 else
342 return get_seg_entry(sbi, segno)->valid_blocks;
343}
344
7 */
8#include <linux/blkdev.h>
9#include <linux/backing-dev.h>
10
11/* constant macro */
12#define NULL_SEGNO ((unsigned int)(~0))
13#define NULL_SECNO ((unsigned int)(~0))
14

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334 * segments, f2fs manages two counting structures separately.
335 */
336 if (use_section && sbi->segs_per_sec > 1)
337 return get_sec_entry(sbi, segno)->valid_blocks;
338 else
339 return get_seg_entry(sbi, segno)->valid_blocks;
340}
341
342static inline unsigned int get_ckpt_valid_blocks(struct f2fs_sb_info *sbi,
343 unsigned int segno)
344{
345 return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
346}
347
345static inline void seg_info_from_raw_sit(struct seg_entry *se,
346 struct f2fs_sit_entry *rs)
347{
348 se->valid_blocks = GET_SIT_VBLOCKS(rs);
349 se->ckpt_valid_blocks = GET_SIT_VBLOCKS(rs);
350 memcpy(se->cur_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
351 memcpy(se->ckpt_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
352#ifdef CONFIG_F2FS_CHECK_FS

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574 if (free_sections(sbi) + freed == reserved_sections(sbi) + needed &&
575 has_curseg_enough_space(sbi))
576 return false;
577 return (free_sections(sbi) + freed) <=
578 (node_secs + 2 * dent_secs + imeta_secs +
579 reserved_sections(sbi) + needed);
580}
581
348static inline void seg_info_from_raw_sit(struct seg_entry *se,
349 struct f2fs_sit_entry *rs)
350{
351 se->valid_blocks = GET_SIT_VBLOCKS(rs);
352 se->ckpt_valid_blocks = GET_SIT_VBLOCKS(rs);
353 memcpy(se->cur_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
354 memcpy(se->ckpt_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
355#ifdef CONFIG_F2FS_CHECK_FS

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577 if (free_sections(sbi) + freed == reserved_sections(sbi) + needed &&
578 has_curseg_enough_space(sbi))
579 return false;
580 return (free_sections(sbi) + freed) <=
581 (node_secs + 2 * dent_secs + imeta_secs +
582 reserved_sections(sbi) + needed);
583}
584
585static inline int f2fs_is_checkpoint_ready(struct f2fs_sb_info *sbi)
586{
587 if (likely(!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
588 return 0;
589 if (likely(!has_not_enough_free_secs(sbi, 0, 0)))
590 return 0;
591 return -ENOSPC;
592}
593
582static inline bool excess_prefree_segs(struct f2fs_sb_info *sbi)
583{
584 return prefree_segments(sbi) > SM_I(sbi)->rec_prefree_segments;
585}
586
587static inline int utilization(struct f2fs_sb_info *sbi)
588{
589 return div_u64((u64)valid_user_blocks(sbi) * 100,

--- 272 unchanged lines hidden --- 		594static inline bool excess_prefree_segs(struct f2fs_sb_info *sbi)
595{
596 return prefree_segments(sbi) > SM_I(sbi)->rec_prefree_segments;
597}
598
599static inline int utilization(struct f2fs_sb_info *sbi)
600{
601 return div_u64((u64)valid_user_blocks(sbi) * 100,

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