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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_INODE_ITEM_H__ |
19 | #define __XFS_INODE_ITEM_H__ |
20 | |
21 | /* |
22 | * This is the structure used to lay out an inode log item in the |
23 | * log. The size of the inline data/extents/b-tree root to be logged |
24 | * (if any) is indicated in the ilf_dsize field. Changes to this structure |
25 | * must be added on to the end. |
26 | */ |
27 | typedef struct xfs_inode_log_format { |
28 | __uint16_t ilf_type; /* inode log item type */ |
29 | __uint16_t ilf_size; /* size of this item */ |
30 | __uint32_t ilf_fields; /* flags for fields logged */ |
31 | __uint16_t ilf_asize; /* size of attr d/ext/root */ |
32 | __uint16_t ilf_dsize; /* size of data/ext/root */ |
33 | __uint64_t ilf_ino; /* inode number */ |
34 | union { |
35 | __uint32_t ilfu_rdev; /* rdev value for dev inode*/ |
36 | uuid_t ilfu_uuid; /* mount point value */ |
37 | } ilf_u; |
38 | __int64_t ilf_blkno; /* blkno of inode buffer */ |
39 | __int32_t ilf_len; /* len of inode buffer */ |
40 | __int32_t ilf_boffset; /* off of inode in buffer */ |
41 | } xfs_inode_log_format_t; |
42 | |
43 | typedef struct xfs_inode_log_format_32 { |
44 | __uint16_t ilf_type; /* inode log item type */ |
45 | __uint16_t ilf_size; /* size of this item */ |
46 | __uint32_t ilf_fields; /* flags for fields logged */ |
47 | __uint16_t ilf_asize; /* size of attr d/ext/root */ |
48 | __uint16_t ilf_dsize; /* size of data/ext/root */ |
49 | __uint64_t ilf_ino; /* inode number */ |
50 | union { |
51 | __uint32_t ilfu_rdev; /* rdev value for dev inode*/ |
52 | uuid_t ilfu_uuid; /* mount point value */ |
53 | } ilf_u; |
54 | __int64_t ilf_blkno; /* blkno of inode buffer */ |
55 | __int32_t ilf_len; /* len of inode buffer */ |
56 | __int32_t ilf_boffset; /* off of inode in buffer */ |
57 | } __attribute__((packed)) xfs_inode_log_format_32_t; |
58 | |
59 | typedef struct xfs_inode_log_format_64 { |
60 | __uint16_t ilf_type; /* inode log item type */ |
61 | __uint16_t ilf_size; /* size of this item */ |
62 | __uint32_t ilf_fields; /* flags for fields logged */ |
63 | __uint16_t ilf_asize; /* size of attr d/ext/root */ |
64 | __uint16_t ilf_dsize; /* size of data/ext/root */ |
65 | __uint32_t ilf_pad; /* pad for 64 bit boundary */ |
66 | __uint64_t ilf_ino; /* inode number */ |
67 | union { |
68 | __uint32_t ilfu_rdev; /* rdev value for dev inode*/ |
69 | uuid_t ilfu_uuid; /* mount point value */ |
70 | } ilf_u; |
71 | __int64_t ilf_blkno; /* blkno of inode buffer */ |
72 | __int32_t ilf_len; /* len of inode buffer */ |
73 | __int32_t ilf_boffset; /* off of inode in buffer */ |
74 | } xfs_inode_log_format_64_t; |
75 | |
76 | /* |
77 | * Flags for xfs_trans_log_inode flags field. |
78 | */ |
79 | #define XFS_ILOG_CORE 0x001 /* log standard inode fields */ |
80 | #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */ |
81 | #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */ |
82 | #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */ |
83 | #define XFS_ILOG_DEV 0x010 /* log the dev field */ |
84 | #define XFS_ILOG_UUID 0x020 /* log the uuid field */ |
85 | #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */ |
86 | #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ |
87 | #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ |
88 | |
89 | #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ |
90 | XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ |
91 | XFS_ILOG_UUID | XFS_ILOG_ADATA | \ |
92 | XFS_ILOG_AEXT | XFS_ILOG_ABROOT) |
93 | |
94 | #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ |
95 | XFS_ILOG_DBROOT) |
96 | |
97 | #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ |
98 | XFS_ILOG_ABROOT) |
99 | |
100 | #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ |
101 | XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ |
102 | XFS_ILOG_DEV | XFS_ILOG_UUID | \ |
103 | XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ |
104 | XFS_ILOG_ABROOT) |
105 | |
106 | #define XFS_ILI_HOLD 0x1 |
107 | #define XFS_ILI_IOLOCKED_EXCL 0x2 |
108 | #define XFS_ILI_IOLOCKED_SHARED 0x4 |
109 | |
110 | #define XFS_ILI_IOLOCKED_ANY (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED) |
111 | |
112 | static inline int xfs_ilog_fbroot(int w) |
113 | { |
114 | return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT); |
115 | } |
116 | |
117 | static inline int xfs_ilog_fext(int w) |
118 | { |
119 | return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT); |
120 | } |
121 | |
122 | static inline int xfs_ilog_fdata(int w) |
123 | { |
124 | return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA); |
125 | } |
126 | |
127 | #ifdef __KERNEL__ |
128 | |
129 | struct xfs_buf; |
130 | struct xfs_bmbt_rec; |
131 | struct xfs_inode; |
132 | struct xfs_mount; |
133 | |
134 | |
135 | typedef struct xfs_inode_log_item { |
136 | xfs_log_item_t ili_item; /* common portion */ |
137 | struct xfs_inode *ili_inode; /* inode ptr */ |
138 | xfs_lsn_t ili_flush_lsn; /* lsn at last flush */ |
139 | xfs_lsn_t ili_last_lsn; /* lsn at last transaction */ |
140 | unsigned short ili_flags; /* misc flags */ |
141 | unsigned short ili_logged; /* flushed logged data */ |
142 | unsigned int ili_last_fields; /* fields when flushed */ |
143 | struct xfs_bmbt_rec *ili_extents_buf; /* array of logged |
144 | data exts */ |
145 | struct xfs_bmbt_rec *ili_aextents_buf; /* array of logged |
146 | attr exts */ |
147 | #ifdef XFS_TRANS_DEBUG |
148 | int ili_root_size; |
149 | char *ili_orig_root; |
150 | #endif |
151 | xfs_inode_log_format_t ili_format; /* logged structure */ |
152 | } xfs_inode_log_item_t; |
153 | |
154 | |
155 | static inline int xfs_inode_clean(xfs_inode_t *ip) |
156 | { |
157 | return (!ip->i_itemp || |
158 | !(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) && |
159 | !ip->i_update_core; |
160 | } |
161 | |
162 | extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *); |
163 | extern void xfs_inode_item_destroy(struct xfs_inode *); |
164 | extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *); |
165 | extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *); |
166 | extern void xfs_iflush_abort(struct xfs_inode *); |
167 | extern int xfs_inode_item_format_convert(xfs_log_iovec_t *, |
168 | xfs_inode_log_format_t *); |
169 | |
170 | #endif /* __KERNEL__ */ |
171 | |
172 | #endif /* __XFS_INODE_ITEM_H__ */ |
173 |
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od-2011-09-18
v2.6.34-rc5
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