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1da177e4 | 1 | /* |
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2 | * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
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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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
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. | |
1da177e4 | 13 | * |
7b718769 NS |
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 | |
1da177e4 LT |
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 | * Convention for naming inode log item versions : The current version | |
28 | * is always named XFS_LI_INODE. When an inode log item gets superseded, | |
29 | * add the latest version of IRIX that will generate logs with that item | |
30 | * to the version name. | |
31 | * | |
32 | * -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first | |
33 | * union (ilf_u) field. This was released with IRIX 5.3-XFS. | |
34 | * -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire | |
35 | * structure. This was released with IRIX 6.0.1-XFS and IRIX 6.1. | |
36 | * -Version 3 of this structure (XFS_LI_INODE) is the same as version 2 | |
37 | * so a new structure definition wasn't necessary. However, we had | |
38 | * to add a new type because the inode cluster size changed from 4K | |
39 | * to 8K and the version number had to be rev'ved to keep older kernels | |
40 | * from trying to recover logs with the 8K buffers in them. The logging | |
41 | * code can handle recovery on different-sized clusters now so hopefully | |
42 | * this'll be the last time we need to change the inode log item just | |
43 | * for a change in the inode cluster size. This new version was | |
44 | * released with IRIX 6.2. | |
45 | */ | |
46 | typedef struct xfs_inode_log_format { | |
47 | unsigned short ilf_type; /* inode log item type */ | |
48 | unsigned short ilf_size; /* size of this item */ | |
49 | uint ilf_fields; /* flags for fields logged */ | |
50 | ushort ilf_asize; /* size of attr d/ext/root */ | |
51 | ushort ilf_dsize; /* size of data/ext/root */ | |
52 | xfs_ino_t ilf_ino; /* inode number */ | |
53 | union { | |
54 | xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/ | |
55 | uuid_t ilfu_uuid; /* mount point value */ | |
56 | } ilf_u; | |
57 | __int64_t ilf_blkno; /* blkno of inode buffer */ | |
58 | int ilf_len; /* len of inode buffer */ | |
59 | int ilf_boffset; /* off of inode in buffer */ | |
60 | } xfs_inode_log_format_t; | |
61 | ||
62 | /* Initial version shipped with IRIX 5.3-XFS */ | |
63 | typedef struct xfs_inode_log_format_v1 { | |
64 | unsigned short ilf_type; /* inode log item type */ | |
65 | unsigned short ilf_size; /* size of this item */ | |
66 | uint ilf_fields; /* flags for fields logged */ | |
67 | uint ilf_dsize; /* size of data/ext/root */ | |
68 | xfs_ino_t ilf_ino; /* inode number */ | |
69 | union { | |
70 | xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/ | |
71 | uuid_t ilfu_uuid; /* mount point value */ | |
72 | } ilf_u; | |
73 | } xfs_inode_log_format_t_v1; | |
74 | ||
75 | /* | |
76 | * Flags for xfs_trans_log_inode flags field. | |
77 | */ | |
78 | #define XFS_ILOG_CORE 0x001 /* log standard inode fields */ | |
79 | #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */ | |
80 | #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */ | |
81 | #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */ | |
82 | #define XFS_ILOG_DEV 0x010 /* log the dev field */ | |
83 | #define XFS_ILOG_UUID 0x020 /* log the uuid field */ | |
84 | #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */ | |
85 | #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ | |
86 | #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ | |
87 | ||
88 | #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ | |
89 | XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ | |
90 | XFS_ILOG_UUID | XFS_ILOG_ADATA | \ | |
91 | XFS_ILOG_AEXT | XFS_ILOG_ABROOT) | |
92 | ||
93 | #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ | |
94 | XFS_ILOG_DBROOT) | |
95 | ||
96 | #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ | |
97 | XFS_ILOG_ABROOT) | |
98 | ||
99 | #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ | |
100 | XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ | |
101 | XFS_ILOG_DEV | XFS_ILOG_UUID | \ | |
102 | XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ | |
103 | XFS_ILOG_ABROOT) | |
104 | ||
105 | #define XFS_ILI_HOLD 0x1 | |
106 | #define XFS_ILI_IOLOCKED_EXCL 0x2 | |
107 | #define XFS_ILI_IOLOCKED_SHARED 0x4 | |
108 | ||
109 | #define XFS_ILI_IOLOCKED_ANY (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED) | |
110 | ||
111 | ||
112 | #ifdef __KERNEL__ | |
113 | ||
114 | struct xfs_buf; | |
115 | struct xfs_bmbt_rec_64; | |
116 | struct xfs_inode; | |
117 | struct xfs_mount; | |
118 | ||
119 | ||
120 | typedef struct xfs_inode_log_item { | |
121 | xfs_log_item_t ili_item; /* common portion */ | |
122 | struct xfs_inode *ili_inode; /* inode ptr */ | |
123 | xfs_lsn_t ili_flush_lsn; /* lsn at last flush */ | |
124 | xfs_lsn_t ili_last_lsn; /* lsn at last transaction */ | |
125 | unsigned short ili_ilock_recur; /* lock recursion count */ | |
126 | unsigned short ili_iolock_recur; /* lock recursion count */ | |
127 | unsigned short ili_flags; /* misc flags */ | |
128 | unsigned short ili_logged; /* flushed logged data */ | |
129 | unsigned int ili_last_fields; /* fields when flushed */ | |
130 | struct xfs_bmbt_rec_64 *ili_extents_buf; /* array of logged | |
131 | data exts */ | |
132 | struct xfs_bmbt_rec_64 *ili_aextents_buf; /* array of logged | |
133 | attr exts */ | |
134 | unsigned int ili_pushbuf_flag; /* one bit used in push_ail */ | |
135 | ||
136 | #ifdef DEBUG | |
137 | uint64_t ili_push_owner; /* one who sets pushbuf_flag | |
138 | above gets to push the buf */ | |
139 | #endif | |
140 | #ifdef XFS_TRANS_DEBUG | |
141 | int ili_root_size; | |
142 | char *ili_orig_root; | |
143 | #endif | |
144 | xfs_inode_log_format_t ili_format; /* logged structure */ | |
145 | } xfs_inode_log_item_t; | |
146 | ||
147 | ||
1da177e4 | 148 | #define XFS_ILOG_FDATA(w) xfs_ilog_fdata(w) |
a844f451 NS |
149 | static inline int xfs_ilog_fdata(int w) |
150 | { | |
151 | return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA); | |
152 | } | |
1da177e4 LT |
153 | |
154 | #endif /* __KERNEL__ */ | |
155 | ||
1da177e4 | 156 | #define XFS_ILOG_FBROOT(w) xfs_ilog_fbroot(w) |
a844f451 NS |
157 | static inline int xfs_ilog_fbroot(int w) |
158 | { | |
159 | return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT); | |
160 | } | |
161 | ||
1da177e4 | 162 | #define XFS_ILOG_FEXT(w) xfs_ilog_fext(w) |
a844f451 NS |
163 | static inline int xfs_ilog_fext(int w) |
164 | { | |
165 | return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT); | |
166 | } | |
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167 | |
168 | #ifdef __KERNEL__ | |
169 | ||
a844f451 NS |
170 | extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *); |
171 | extern void xfs_inode_item_destroy(struct xfs_inode *); | |
172 | extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *); | |
173 | extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *); | |
174 | extern void xfs_iflush_abort(struct xfs_inode *); | |
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175 | |
176 | #endif /* __KERNEL__ */ | |
177 | ||
178 | #endif /* __XFS_INODE_ITEM_H__ */ |