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