projects / thirdparty / xfsprogs-dev.git / blame
| Commit | Line | Data |
|---|---|---|
| 37b3b4d6 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2bd0ea18 | 2 | /* |
| f302e9e4 NS |
3 | * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
| 4 | * All Rights Reserved. | |
| 2bd0ea18 NS |
5 | */ |
| 6 | #ifndef __XFS_IALLOC_BTREE_H__ | |
| dfc130f3 | 7 | #define __XFS_IALLOC_BTREE_H__ |
| 2bd0ea18 NS |
8 | |
| 9 | /* | |
| 10 | * Inode map on-disk structures | |
| 11 | */ | |
| 12 | ||
| 13 | struct xfs_buf; | |
| 14 | struct xfs_btree_cur; | |
| 2bd0ea18 NS |
15 | struct xfs_mount; |
| 16 | ||
| 2bd0ea18 | 17 | /* |
| b3563c19 | 18 | * Btree block header size depends on a superblock flag. |
| 2bd0ea18 | 19 | */ |
| 5dfa5cd2 DC |
20 | #define XFS_INOBT_BLOCK_LEN(mp) \ |
| 21 | (xfs_sb_version_hascrc(&((mp)->m_sb)) ? \ | |
| 79737cd9 | 22 | XFS_BTREE_SBLOCK_CRC_LEN : XFS_BTREE_SBLOCK_LEN) |
| 2bd0ea18 | 23 | |
| b3563c19 BN |
24 | /* |
| 25 | * Record, key, and pointer address macros for btree blocks. | |
| 26 | * | |
| 27 | * (note that some of these may appear unused, but they are used in userspace) | |
| 28 | */ | |
| 29 | #define XFS_INOBT_REC_ADDR(mp, block, index) \ | |
| 30 | ((xfs_inobt_rec_t *) \ | |
| 31 | ((char *)(block) + \ | |
| 32 | XFS_INOBT_BLOCK_LEN(mp) + \ | |
| 33 | (((index) - 1) * sizeof(xfs_inobt_rec_t)))) | |
| 34 | ||
| 35 | #define XFS_INOBT_KEY_ADDR(mp, block, index) \ | |
| 36 | ((xfs_inobt_key_t *) \ | |
| 37 | ((char *)(block) + \ | |
| 38 | XFS_INOBT_BLOCK_LEN(mp) + \ | |
| 39 | ((index) - 1) * sizeof(xfs_inobt_key_t))) | |
| 40 | ||
| 41 | #define XFS_INOBT_PTR_ADDR(mp, block, index, maxrecs) \ | |
| 42 | ((xfs_inobt_ptr_t *) \ | |
| 43 | ((char *)(block) + \ | |
| 44 | XFS_INOBT_BLOCK_LEN(mp) + \ | |
| 45 | (maxrecs) * sizeof(xfs_inobt_key_t) + \ | |
| 46 | ((index) - 1) * sizeof(xfs_inobt_ptr_t))) | |
| 2bd0ea18 | 47 | |
| b194c7d8 | 48 | extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *, |
| 70eb7337 BF |
49 | struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t, |
| 50 | xfs_btnum_t); | |
| b3563c19 | 51 | extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int); |
| 2bd0ea18 | 52 | |
| 2cf87710 BF |
53 | /* ir_holemask to inode allocation bitmap conversion */ |
| 54 | uint64_t xfs_inobt_irec_to_allocmask(struct xfs_inobt_rec_incore *); | |
| 55 | ||
| 6f4c54a4 BF |
56 | #if defined(DEBUG) || defined(XFS_WARN) |
| 57 | int xfs_inobt_rec_check_count(struct xfs_mount *, | |
| 58 | struct xfs_inobt_rec_incore *); | |
| 59 | #else | |
| 60 | #define xfs_inobt_rec_check_count(mp, rec) 0 | |
| 61 | #endif /* DEBUG */ | |
| 62 | ||
| 74e502ac CH |
63 | int xfs_finobt_calc_reserves(struct xfs_mount *mp, xfs_agnumber_t agno, |
| 64 | xfs_extlen_t *ask, xfs_extlen_t *used); | |
| 5f728383 DW |
65 | extern xfs_extlen_t xfs_iallocbt_calc_size(struct xfs_mount *mp, |
| 66 | unsigned long long len); | |
| 74e502ac | 67 | |
| 2bd0ea18 | 68 | #endif /* __XFS_IALLOC_BTREE_H__ */ |