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Diffstat (limited to 'fs/xfs/xfs_trans_resv.h')
-rw-r--r-- | fs/xfs/xfs_trans_resv.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trans_resv.h b/fs/xfs/xfs_trans_resv.h new file mode 100644 index 000000000000..de7de9aaad8a --- /dev/null +++ b/fs/xfs/xfs_trans_resv.h | |||
@@ -0,0 +1,116 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2000-2002,2005 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_RESV_H__ | ||
19 | #define __XFS_TRANS_RESV_H__ | ||
20 | |||
21 | struct xfs_mount; | ||
22 | |||
23 | /* | ||
24 | * structure for maintaining pre-calculated transaction reservations. | ||
25 | */ | ||
26 | struct xfs_trans_res { | ||
27 | uint tr_logres; /* log space unit in bytes per log ticket */ | ||
28 | int tr_logcount; /* number of log operations per log ticket */ | ||
29 | int tr_logflags; /* log flags, currently only used for indicating | ||
30 | * a reservation request is permanent or not */ | ||
31 | }; | ||
32 | |||
33 | struct xfs_trans_resv { | ||
34 | struct xfs_trans_res tr_write; /* extent alloc trans */ | ||
35 | struct xfs_trans_res tr_itruncate; /* truncate trans */ | ||
36 | struct xfs_trans_res tr_rename; /* rename trans */ | ||
37 | struct xfs_trans_res tr_link; /* link trans */ | ||
38 | struct xfs_trans_res tr_remove; /* unlink trans */ | ||
39 | struct xfs_trans_res tr_symlink; /* symlink trans */ | ||
40 | struct xfs_trans_res tr_create; /* create trans */ | ||
41 | struct xfs_trans_res tr_mkdir; /* mkdir trans */ | ||
42 | struct xfs_trans_res tr_ifree; /* inode free trans */ | ||
43 | struct xfs_trans_res tr_ichange; /* inode update trans */ | ||
44 | struct xfs_trans_res tr_growdata; /* fs data section grow trans */ | ||
45 | struct xfs_trans_res tr_swrite; /* sync write inode trans */ | ||
46 | struct xfs_trans_res tr_addafork; /* add inode attr fork trans */ | ||
47 | struct xfs_trans_res tr_writeid; /* write setuid/setgid file */ | ||
48 | struct xfs_trans_res tr_attrinval; /* attr fork buffer | ||
49 | * invalidation */ | ||
50 | struct xfs_trans_res tr_attrsetm; /* set/create an attribute at | ||
51 | * mount time */ | ||
52 | struct xfs_trans_res tr_attrsetrt; /* set/create an attribute at | ||
53 | * runtime */ | ||
54 | struct xfs_trans_res tr_attrrm; /* remove an attribute */ | ||
55 | struct xfs_trans_res tr_clearagi; /* clear agi unlinked bucket */ | ||
56 | struct xfs_trans_res tr_growrtalloc; /* grow realtime allocations */ | ||
57 | struct xfs_trans_res tr_growrtzero; /* grow realtime zeroing */ | ||
58 | struct xfs_trans_res tr_growrtfree; /* grow realtime freeing */ | ||
59 | struct xfs_trans_res tr_qm_sbchange; /* change quota flags */ | ||
60 | struct xfs_trans_res tr_qm_setqlim; /* adjust quota limits */ | ||
61 | struct xfs_trans_res tr_qm_dqalloc; /* allocate quota on disk */ | ||
62 | struct xfs_trans_res tr_qm_quotaoff; /* turn quota off */ | ||
63 | struct xfs_trans_res tr_qm_equotaoff;/* end of turn quota off */ | ||
64 | struct xfs_trans_res tr_sb; /* modify superblock */ | ||
65 | struct xfs_trans_res tr_fsyncts; /* update timestamps on fsync */ | ||
66 | }; | ||
67 | |||
68 | /* shorthand way of accessing reservation structure */ | ||
69 | #define M_RES(mp) (&(mp)->m_resv) | ||
70 | |||
71 | /* | ||
72 | * Per-extent log reservation for the allocation btree changes | ||
73 | * involved in freeing or allocating an extent. | ||
74 | * 2 trees * (2 blocks/level * max depth - 1) * block size | ||
75 | */ | ||
76 | #define XFS_ALLOCFREE_LOG_RES(mp,nx) \ | ||
77 | ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1))) | ||
78 | #define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \ | ||
79 | ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1))) | ||
80 | |||
81 | /* | ||
82 | * Per-directory log reservation for any directory change. | ||
83 | * dir blocks: (1 btree block per level + data block + free block) * dblock size | ||
84 | * bmap btree: (levels + 2) * max depth * block size | ||
85 | * v2 directory blocks can be fragmented below the dirblksize down to the fsb | ||
86 | * size, so account for that in the DAENTER macros. | ||
87 | */ | ||
88 | #define XFS_DIROP_LOG_RES(mp) \ | ||
89 | (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \ | ||
90 | (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1))) | ||
91 | #define XFS_DIROP_LOG_COUNT(mp) \ | ||
92 | (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \ | ||
93 | XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1) | ||
94 | |||
95 | /* | ||
96 | * Various log count values. | ||
97 | */ | ||
98 | #define XFS_DEFAULT_LOG_COUNT 1 | ||
99 | #define XFS_DEFAULT_PERM_LOG_COUNT 2 | ||
100 | #define XFS_ITRUNCATE_LOG_COUNT 2 | ||
101 | #define XFS_INACTIVE_LOG_COUNT 2 | ||
102 | #define XFS_CREATE_LOG_COUNT 2 | ||
103 | #define XFS_MKDIR_LOG_COUNT 3 | ||
104 | #define XFS_SYMLINK_LOG_COUNT 3 | ||
105 | #define XFS_REMOVE_LOG_COUNT 2 | ||
106 | #define XFS_LINK_LOG_COUNT 2 | ||
107 | #define XFS_RENAME_LOG_COUNT 2 | ||
108 | #define XFS_WRITE_LOG_COUNT 2 | ||
109 | #define XFS_ADDAFORK_LOG_COUNT 2 | ||
110 | #define XFS_ATTRINVAL_LOG_COUNT 1 | ||
111 | #define XFS_ATTRSET_LOG_COUNT 3 | ||
112 | #define XFS_ATTRRM_LOG_COUNT 3 | ||
113 | |||
114 | void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp); | ||
115 | |||
116 | #endif /* __XFS_TRANS_RESV_H__ */ | ||