| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | /* |
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| 3 | * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
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| 4 | * All Rights Reserved. |
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| 5 | */ |
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| 6 | #ifndef __XFS_TRANS_SPACE_H__ |
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| 7 | #define __XFS_TRANS_SPACE_H__ |
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| 8 | |
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| 9 | /* |
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| 10 | * Components of space reservations. |
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| 11 | */ |
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| 12 | |
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| 13 | /* Worst case number of rmaps that can be held in a block. */ |
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| 14 | #define XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) \ |
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| 15 | (((mp)->m_rmap_mxr[0]) - ((mp)->m_rmap_mnr[0])) |
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| 16 | |
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| 17 | /* Adding one rmap could split every level up to the top of the tree. */ |
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| 18 | #define XFS_RMAPADD_SPACE_RES(mp) ((mp)->m_rmap_maxlevels) |
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| 19 | |
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| 20 | /* |
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| 21 | * Note that we historically set m_rmap_maxlevels to 9 when reflink is enabled, |
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| 22 | * so we must preserve this behavior to avoid changing the transaction space |
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| 23 | * reservations and minimum log size calculations for existing filesystems. |
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| 24 | */ |
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| 25 | #define XFS_OLD_REFLINK_RMAP_MAXLEVELS 9 |
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| 26 | |
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| 27 | /* Blocks we might need to add "b" rmaps to a tree. */ |
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| 28 | #define XFS_NRMAPADD_SPACE_RES(mp, b)\ |
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| 29 | (((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \ |
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| 30 | XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)) * \ |
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| 31 | XFS_RMAPADD_SPACE_RES(mp)) |
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| 32 | |
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| 33 | #define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) \ |
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| 34 | (((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0])) |
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| 35 | #define XFS_EXTENTADD_SPACE_RES(mp,w) (XFS_BM_MAXLEVELS(mp,w) - 1) |
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| 36 | #define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\ |
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| 37 | (((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \ |
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| 38 | XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \ |
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| 39 | XFS_EXTENTADD_SPACE_RES(mp,w)) |
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| 40 | |
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| 41 | /* Blocks we might need to add "b" mappings & rmappings to a file. */ |
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| 42 | #define XFS_SWAP_RMAP_SPACE_RES(mp,b,w)\ |
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| 43 | (XFS_NEXTENTADD_SPACE_RES((mp), (b), (w)) + \ |
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| 44 | XFS_NRMAPADD_SPACE_RES((mp), (b))) |
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| 45 | |
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| 46 | #define XFS_DAENTER_1B(mp,w) \ |
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| 47 | ((w) == XFS_DATA_FORK ? (mp)->m_dir_geo->fsbcount : 1) |
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| 48 | #define XFS_DAENTER_DBS(mp,w) \ |
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| 49 | (XFS_DA_NODE_MAXDEPTH + (((w) == XFS_DATA_FORK) ? 2 : 0)) |
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| 50 | #define XFS_DAENTER_BLOCKS(mp,w) \ |
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| 51 | (XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w)) |
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| 52 | #define XFS_DAENTER_BMAP1B(mp,w) \ |
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| 53 | XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w) |
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| 54 | #define XFS_DAENTER_BMAPS(mp,w) \ |
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| 55 | (XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w)) |
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| 56 | #define XFS_DAENTER_SPACE_RES(mp,w) \ |
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| 57 | (XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w)) |
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| 58 | #define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w) |
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| 59 | #define XFS_DIRENTER_MAX_SPLIT(mp,nl) 1 |
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| 60 | #define XFS_DIRENTER_SPACE_RES(mp,nl) \ |
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| 61 | (XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \ |
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| 62 | XFS_DIRENTER_MAX_SPLIT(mp,nl)) |
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| 63 | #define XFS_DIRREMOVE_SPACE_RES(mp) \ |
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| 64 | XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK) |
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| 65 | #define XFS_IALLOC_SPACE_RES(mp) \ |
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| 66 | (M_IGEO(mp)->ialloc_blks + \ |
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| 67 | ((xfs_has_finobt(mp) ? 2 : 1) * M_IGEO(mp)->inobt_maxlevels)) |
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| 68 | |
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| 69 | /* |
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| 70 | * Space reservation values for various transactions. |
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| 71 | */ |
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| 72 | #define XFS_ADDAFORK_SPACE_RES(mp) \ |
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| 73 | ((mp)->m_dir_geo->fsbcount + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK)) |
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| 74 | #define XFS_ATTRRM_SPACE_RES(mp) \ |
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| 75 | XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK) |
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| 76 | /* This macro is not used - see inline code in xfs_attr_set */ |
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| 77 | #define XFS_ATTRSET_SPACE_RES(mp, v) \ |
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| 78 | (XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v)) |
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| 79 | #define XFS_CREATE_SPACE_RES(mp,nl) \ |
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| 80 | (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) |
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| 81 | #define XFS_DIOSTRAT_SPACE_RES(mp, v) \ |
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| 82 | (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v)) |
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| 83 | #define XFS_GROWFS_SPACE_RES(mp) \ |
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| 84 | (2 * (mp)->m_alloc_maxlevels) |
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| 85 | #define XFS_GROWFSRT_SPACE_RES(mp,b) \ |
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| 86 | ((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK)) |
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| 87 | #define XFS_LINK_SPACE_RES(mp,nl) \ |
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| 88 | XFS_DIRENTER_SPACE_RES(mp,nl) |
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| 89 | #define XFS_MKDIR_SPACE_RES(mp,nl) \ |
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| 90 | (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) |
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| 91 | #define XFS_QM_DQALLOC_SPACE_RES(mp) \ |
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| 92 | (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \ |
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| 93 | XFS_DQUOT_CLUSTER_SIZE_FSB) |
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| 94 | #define XFS_QM_QINOCREATE_SPACE_RES(mp) \ |
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| 95 | XFS_IALLOC_SPACE_RES(mp) |
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| 96 | #define XFS_REMOVE_SPACE_RES(mp) \ |
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| 97 | XFS_DIRREMOVE_SPACE_RES(mp) |
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| 98 | #define XFS_RENAME_SPACE_RES(mp,nl) \ |
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| 99 | (XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) |
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| 100 | #define XFS_SYMLINK_SPACE_RES(mp,nl,b) \ |
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| 101 | (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b)) |
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| 102 | #define XFS_IFREE_SPACE_RES(mp) \ |
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| 103 | (xfs_has_finobt(mp) ? M_IGEO(mp)->inobt_maxlevels : 0) |
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| 104 | |
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| 105 | |
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| 106 | #endif /* __XFS_TRANS_SPACE_H__ */ |
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| 107 | |
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