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