1 /* 2 * Copyright (c) 2000,2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 #ifndef __XFS_TRANS_SPACE_H__ 19 #define __XFS_TRANS_SPACE_H__ 20 21 /* 22 * Components of space reservations. 23 */ 24 25 /* Worst case number of rmaps that can be held in a block. */ 26 #define XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) \ 27 (((mp)->m_rmap_mxr[0]) - ((mp)->m_rmap_mnr[0])) 28 29 /* Adding one rmap could split every level up to the top of the tree. */ 30 #define XFS_RMAPADD_SPACE_RES(mp) ((mp)->m_rmap_maxlevels) 31 32 /* Blocks we might need to add "b" rmaps to a tree. */ 33 #define XFS_NRMAPADD_SPACE_RES(mp, b)\ 34 (((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \ 35 XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)) * \ 36 XFS_RMAPADD_SPACE_RES(mp)) 37 38 #define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) \ 39 (((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0])) 40 #define XFS_EXTENTADD_SPACE_RES(mp,w) (XFS_BM_MAXLEVELS(mp,w) - 1) 41 #define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\ 42 (((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \ 43 XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \ 44 XFS_EXTENTADD_SPACE_RES(mp,w)) 45 46 /* Blocks we might need to add "b" mappings & rmappings to a file. */ 47 #define XFS_SWAP_RMAP_SPACE_RES(mp,b,w)\ 48 (XFS_NEXTENTADD_SPACE_RES((mp), (b), (w)) + \ 49 XFS_NRMAPADD_SPACE_RES((mp), (b))) 50 51 #define XFS_DAENTER_1B(mp,w) \ 52 ((w) == XFS_DATA_FORK ? (mp)->m_dir_geo->fsbcount : 1) 53 #define XFS_DAENTER_DBS(mp,w) \ 54 (XFS_DA_NODE_MAXDEPTH + (((w) == XFS_DATA_FORK) ? 2 : 0)) 55 #define XFS_DAENTER_BLOCKS(mp,w) \ 56 (XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w)) 57 #define XFS_DAENTER_BMAP1B(mp,w) \ 58 XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w) 59 #define XFS_DAENTER_BMAPS(mp,w) \ 60 (XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w)) 61 #define XFS_DAENTER_SPACE_RES(mp,w) \ 62 (XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w)) 63 #define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w) 64 #define XFS_DIRENTER_MAX_SPLIT(mp,nl) 1 65 #define XFS_DIRENTER_SPACE_RES(mp,nl) \ 66 (XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \ 67 XFS_DIRENTER_MAX_SPLIT(mp,nl)) 68 #define XFS_DIRREMOVE_SPACE_RES(mp) \ 69 XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK) 70 #define XFS_IALLOC_SPACE_RES(mp) \ 71 ((mp)->m_ialloc_blks + \ 72 (xfs_sb_version_hasfinobt(&mp->m_sb) ? 2 : 1 * \ 73 ((mp)->m_in_maxlevels - 1))) 74 75 /* 76 * Space reservation values for various transactions. 77 */ 78 #define XFS_ADDAFORK_SPACE_RES(mp) \ 79 ((mp)->m_dir_geo->fsbcount + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK)) 80 #define XFS_ATTRRM_SPACE_RES(mp) \ 81 XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK) 82 /* This macro is not used - see inline code in xfs_attr_set */ 83 #define XFS_ATTRSET_SPACE_RES(mp, v) \ 84 (XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v)) 85 #define XFS_CREATE_SPACE_RES(mp,nl) \ 86 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) 87 #define XFS_DIOSTRAT_SPACE_RES(mp, v) \ 88 (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v)) 89 #define XFS_GROWFS_SPACE_RES(mp) \ 90 (2 * (mp)->m_ag_maxlevels) 91 #define XFS_GROWFSRT_SPACE_RES(mp,b) \ 92 ((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK)) 93 #define XFS_LINK_SPACE_RES(mp,nl) \ 94 XFS_DIRENTER_SPACE_RES(mp,nl) 95 #define XFS_MKDIR_SPACE_RES(mp,nl) \ 96 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) 97 #define XFS_QM_DQALLOC_SPACE_RES(mp) \ 98 (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \ 99 XFS_DQUOT_CLUSTER_SIZE_FSB) 100 #define XFS_QM_QINOCREATE_SPACE_RES(mp) \ 101 XFS_IALLOC_SPACE_RES(mp) 102 #define XFS_REMOVE_SPACE_RES(mp) \ 103 XFS_DIRREMOVE_SPACE_RES(mp) 104 #define XFS_RENAME_SPACE_RES(mp,nl) \ 105 (XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) 106 #define XFS_SYMLINK_SPACE_RES(mp,nl,b) \ 107 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b)) 108 #define XFS_IFREE_SPACE_RES(mp) \ 109 (xfs_sb_version_hasfinobt(&mp->m_sb) ? (mp)->m_in_maxlevels : 0) 110 111 112 #endif /* __XFS_TRANS_SPACE_H__ */ 113