| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of version 2 of the GNU General Public License as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it would be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 11 | * |
| 12 | * Further, this software is distributed without any warranty that it is |
| 13 | * free of the rightful claim of any third person regarding infringement |
| 14 | * or the like. Any license provided herein, whether implied or |
| 15 | * otherwise, applies only to this software file. Patent licenses, if |
| 16 | * any, provided herein do not apply to combinations of this program with |
| 17 | * other software, or any other product whatsoever. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; if not, write the Free Software Foundation, Inc., 59 |
| 21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| 22 | * |
| 23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, |
| 24 | * Mountain View, CA 94043, or: |
| 25 | * |
| 26 | * http://www.sgi.com |
| 27 | * |
| 28 | * For further information regarding this notice, see: |
| 29 | * |
| 30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ |
| 31 | */ |
| 32 | #ifndef __XFS_TRANS_SPACE_H__ |
| 33 | #define __XFS_TRANS_SPACE_H__ |
| 34 | |
| 35 | /* |
| 36 | * Components of space reservations. |
| 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 | #define XFS_DAENTER_1B(mp,w) ((w) == XFS_DATA_FORK ? (mp)->m_dirblkfsbs : 1) |
| 46 | #define XFS_DAENTER_DBS(mp,w) \ |
| 47 | (XFS_DA_NODE_MAXDEPTH + \ |
| 48 | ((XFS_DIR_IS_V2(mp) && (w) == XFS_DATA_FORK) ? 2 : 0)) |
| 49 | #define XFS_DAENTER_BLOCKS(mp,w) \ |
| 50 | (XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w)) |
| 51 | #define XFS_DAENTER_BMAP1B(mp,w) \ |
| 52 | XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w) |
| 53 | #define XFS_DAENTER_BMAPS(mp,w) \ |
| 54 | (XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w)) |
| 55 | #define XFS_DAENTER_SPACE_RES(mp,w) \ |
| 56 | (XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w)) |
| 57 | #define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w) |
| 58 | #define XFS_DIRENTER_MAX_SPLIT(mp,nl) \ |
| 59 | (((mp)->m_sb.sb_blocksize == 512 && \ |
| 60 | XFS_DIR_IS_V1(mp) && \ |
| 61 | (nl) >= XFS_DIR_LEAF_CAN_DOUBLE_SPLIT_LEN) ? 2 : 1) |
| 62 | #define XFS_DIRENTER_SPACE_RES(mp,nl) \ |
| 63 | (XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \ |
| 64 | XFS_DIRENTER_MAX_SPLIT(mp,nl)) |
| 65 | #define XFS_DIRREMOVE_SPACE_RES(mp) \ |
| 66 | XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK) |
| 67 | #define XFS_IALLOC_SPACE_RES(mp) \ |
| 68 | (XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp)-1) |
| 69 | |
| 70 | /* |
| 71 | * Space reservation values for various transactions. |
| 72 | */ |
| 73 | #define XFS_ADDAFORK_SPACE_RES(mp) \ |
| 74 | ((mp)->m_dirblkfsbs + \ |
| 75 | (XFS_DIR_IS_V1(mp) ? 0 : XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK))) |
| 76 | #define XFS_ATTRRM_SPACE_RES(mp) \ |
| 77 | XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK) |
| 78 | /* This macro is not used - see inline code in xfs_attr_set */ |
| 79 | #define XFS_ATTRSET_SPACE_RES(mp, v) \ |
| 80 | (XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v)) |
| 81 | #define XFS_CREATE_SPACE_RES(mp,nl) \ |
| 82 | (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) |
| 83 | #define XFS_DIOSTRAT_SPACE_RES(mp, v) \ |
| 84 | (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v)) |
| 85 | #define XFS_GROWFS_SPACE_RES(mp) \ |
| 86 | (2 * XFS_AG_MAXLEVELS(mp)) |
| 87 | #define XFS_GROWFSRT_SPACE_RES(mp,b) \ |
| 88 | ((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK)) |
| 89 | #define XFS_LINK_SPACE_RES(mp,nl) \ |
| 90 | XFS_DIRENTER_SPACE_RES(mp,nl) |
| 91 | #define XFS_MKDIR_SPACE_RES(mp,nl) \ |
| 92 | (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) |
| 93 | #define XFS_QM_DQALLOC_SPACE_RES(mp) \ |
| 94 | (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \ |
| 95 | XFS_DQUOT_CLUSTER_SIZE_FSB) |
| 96 | #define XFS_QM_QINOCREATE_SPACE_RES(mp) \ |
| 97 | XFS_IALLOC_SPACE_RES(mp) |
| 98 | #define XFS_REMOVE_SPACE_RES(mp) \ |
| 99 | XFS_DIRREMOVE_SPACE_RES(mp) |
| 100 | #define XFS_RENAME_SPACE_RES(mp,nl) \ |
| 101 | (XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl)) |
| 102 | #define XFS_SYMLINK_SPACE_RES(mp,nl,b) \ |
| 103 | (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b)) |
| 104 | |
| 105 | #endif /* __XFS_TRANS_SPACE_H__ */ |