blob: e91d173f4ed3258f73d5ba607b1cc03acb7886d5 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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__ */