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18#ifndef __XFS_IALLOC_BTREE_H__
19#define __XFS_IALLOC_BTREE_H__
20
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24
25struct xfs_buf;
26struct xfs_btree_cur;
27struct xfs_mount;
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31
32#define XFS_INOBT_BLOCK_LEN(mp) \
33 (xfs_sb_version_hascrc(&((mp)->m_sb)) ? \
34 XFS_BTREE_SBLOCK_CRC_LEN : XFS_BTREE_SBLOCK_LEN)
35
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39
40
41#define XFS_INOBT_REC_ADDR(mp, block, index) \
42 ((xfs_inobt_rec_t *) \
43 ((char *)(block) + \
44 XFS_INOBT_BLOCK_LEN(mp) + \
45 (((index) - 1) * sizeof(xfs_inobt_rec_t))))
46
47#define XFS_INOBT_KEY_ADDR(mp, block, index) \
48 ((xfs_inobt_key_t *) \
49 ((char *)(block) + \
50 XFS_INOBT_BLOCK_LEN(mp) + \
51 ((index) - 1) * sizeof(xfs_inobt_key_t)))
52
53#define XFS_INOBT_PTR_ADDR(mp, block, index, maxrecs) \
54 ((xfs_inobt_ptr_t *) \
55 ((char *)(block) + \
56 XFS_INOBT_BLOCK_LEN(mp) + \
57 (maxrecs) * sizeof(xfs_inobt_key_t) + \
58 ((index) - 1) * sizeof(xfs_inobt_ptr_t)))
59
60extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *,
61 struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t,
62 xfs_btnum_t);
63extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int);
64
65
66uint64_t xfs_inobt_irec_to_allocmask(struct xfs_inobt_rec_incore *);
67
68#if defined(DEBUG) || defined(XFS_WARN)
69int xfs_inobt_rec_check_count(struct xfs_mount *,
70 struct xfs_inobt_rec_incore *);
71#else
72#define xfs_inobt_rec_check_count(mp, rec) 0
73#endif
74
75#endif
76