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 #define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) \ 25 (((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0])) 26 #define XFS_EXTENTADD_SPACE_RES(mp,w) (XFS_BM_MAXLEVELS(mp,w) - 1) 27 #define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\ 28 (((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \ 29 XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \ 30 XFS_EXTENTADD_SPACE_RES(mp,w)) 31 #define XFS_DAENTER_1B(mp,w) ((w) == XFS_DATA_FORK ? (mp)->m_dirblkfsbs : 1) 32 #define XFS_DAENTER_DBS(mp,w) \ 33 (XFS_DA_NODE_MAXDEPTH + \ 34 ((XFS_DIR_IS_V2(mp) && (w) == XFS_DATA_FORK) ? 2 : 0)) 35 #define XFS_DAENTER_BLOCKS(mp,w) \ 36 (XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w)) 37 #define XFS_DAENTER_BMAP1B(mp,w) \ 38 XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w) 39 #define XFS_DAENTER_BMAPS(mp,w) \ 40 (XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w)) 41 #define XFS_DAENTER_SPACE_RES(mp,w) \ 42 (XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w)) 43 #define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w) 44 #define XFS_DIRENTER_MAX_SPLIT(mp,nl) \ 45 (((mp)->m_sb.sb_blocksize == 512 && \ 46 XFS_DIR_IS_V1(mp) && \ 47 (nl) >= XFS_DIR_LEAF_CAN_DOUBLE_SPLIT_LEN) ? 2 : 1) 48 #define XFS_DIRENTER_SPACE_RES(mp,nl) \ 49 (XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \ 50 XFS_DIRENTER_MAX_SPLIT(mp,nl)) 51 #define XFS_DIRREMOVE_SPACE_RES(mp) \ 52 XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK) 53 #define XFS_IALLOC_SPACE_RES(mp) \ 54 (XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp)-1) 55 56 /* 57 * Space reservation values for various transactions. 58 */ 59 #define XFS_ADDAFORK_SPACE_RES(mp) \ 60 ((mp)->m_dirblkfsbs + \ 61 (XFS_DIR_IS_V1(mp) ? 0 : XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK))) 62 #define XFS_ATTRRM_SPACE_RES(mp) \ 63 XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK) 64 /* This macro is not used - see inline code in xfs_attr_set */ 65 #define XFS_ATTRSET_SPACE_RES(mp, v) \ 66 (XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v)) 67 #define XFS_CREATE_SPACE_RES(mp,nl) \ 68 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) 69 #define XFS_DIOSTRAT_SPACE_RES(mp, v) \ 70 (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v)) 71 #define XFS_GROWFS_SPACE_RES(mp) \ 72 (2 * XFS_AG_MAXLEVELS(mp)) 73 #define XFS_GROWFSRT_SPACE_RES(mp,b) \ 74 ((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK)) 75 #define XFS_LINK_SPACE_RES(mp,nl) \ 76 XFS_DIRENTER_SPACE_RES(mp,nl) 77 #define XFS_MKDIR_SPACE_RES(mp,nl) \ 78 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) 79 #define XFS_QM_DQALLOC_SPACE_RES(mp) \ 80 (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \ 81 XFS_DQUOT_CLUSTER_SIZE_FSB) 82 #define XFS_QM_QINOCREATE_SPACE_RES(mp) \ 83 XFS_IALLOC_SPACE_RES(mp) 84 #define XFS_REMOVE_SPACE_RES(mp) \ 85 XFS_DIRREMOVE_SPACE_RES(mp) 86 #define XFS_RENAME_SPACE_RES(mp,nl) \ 87 (XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) 88 #define XFS_SYMLINK_SPACE_RES(mp,nl,b) \ 89 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b)) 90 91 #endif /* __XFS_TRANS_SPACE_H__ */ 92