2 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
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.
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.
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
18 #ifndef __XFS_TRANS_SPACE_H__
19 #define __XFS_TRANS_SPACE_H__
22 * Components of space reservations.
24 #define XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) \
25 (((mp)->m_rmap_mxr[0]) - ((mp)->m_rmap_mnr[0]))
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 #define XFS_SWAP_RMAP_SPACE_RES(mp,b,w)\
34 (((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
35 XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
36 XFS_EXTENTADD_SPACE_RES(mp,w) + \
37 ((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \
38 XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)) * \
39 (mp)->m_rmap_maxlevels)
40 #define XFS_DAENTER_1B(mp,w) \
41 ((w) == XFS_DATA_FORK ? (mp)->m_dir_geo->fsbcount : 1)
42 #define XFS_DAENTER_DBS(mp,w) \
43 (XFS_DA_NODE_MAXDEPTH + (((w) == XFS_DATA_FORK) ? 2 : 0))
44 #define XFS_DAENTER_BLOCKS(mp,w) \
45 (XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w))
46 #define XFS_DAENTER_BMAP1B(mp,w) \
47 XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w)
48 #define XFS_DAENTER_BMAPS(mp,w) \
49 (XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w))
50 #define XFS_DAENTER_SPACE_RES(mp,w) \
51 (XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w))
52 #define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w)
53 #define XFS_DIRENTER_MAX_SPLIT(mp,nl) 1
54 #define XFS_DIRENTER_SPACE_RES(mp,nl) \
55 (XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \
56 XFS_DIRENTER_MAX_SPLIT(mp,nl))
57 #define XFS_DIRREMOVE_SPACE_RES(mp) \
58 XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
59 #define XFS_IALLOC_SPACE_RES(mp) \
60 ((mp)->m_ialloc_blks + \
61 (xfs_sb_version_hasfinobt(&mp->m_sb) ? 2 : 1 * \
62 ((mp)->m_in_maxlevels - 1)))
65 * Space reservation values for various transactions.
67 #define XFS_ADDAFORK_SPACE_RES(mp) \
68 ((mp)->m_dir_geo->fsbcount + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK))
69 #define XFS_ATTRRM_SPACE_RES(mp) \
70 XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK)
71 /* This macro is not used - see inline code in xfs_attr_set */
72 #define XFS_ATTRSET_SPACE_RES(mp, v) \
73 (XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v))
74 #define XFS_CREATE_SPACE_RES(mp,nl) \
75 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
76 #define XFS_DIOSTRAT_SPACE_RES(mp, v) \
77 (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v))
78 #define XFS_GROWFS_SPACE_RES(mp) \
79 (2 * (mp)->m_ag_maxlevels)
80 #define XFS_GROWFSRT_SPACE_RES(mp,b) \
81 ((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
82 #define XFS_LINK_SPACE_RES(mp,nl) \
83 XFS_DIRENTER_SPACE_RES(mp,nl)
84 #define XFS_MKDIR_SPACE_RES(mp,nl) \
85 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
86 #define XFS_QM_DQALLOC_SPACE_RES(mp) \
87 (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \
88 XFS_DQUOT_CLUSTER_SIZE_FSB)
89 #define XFS_QM_QINOCREATE_SPACE_RES(mp) \
90 XFS_IALLOC_SPACE_RES(mp)
91 #define XFS_REMOVE_SPACE_RES(mp) \
92 XFS_DIRREMOVE_SPACE_RES(mp)
93 #define XFS_RENAME_SPACE_RES(mp,nl) \
94 (XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
95 #define XFS_SYMLINK_SPACE_RES(mp,nl,b) \
96 (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
97 #define XFS_IFREE_SPACE_RES(mp) \
98 (xfs_sb_version_hasfinobt(&mp->m_sb) ? (mp)->m_in_maxlevels : 0)
101 #endif /* __XFS_TRANS_SPACE_H__ */