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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
fc06c6d0 DC |
2 | /* |
3 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. | |
4 | * All Rights Reserved. | |
fc06c6d0 DC |
5 | */ |
6 | #ifndef __XFS_LOG_FORMAT_H__ | |
7 | #define __XFS_LOG_FORMAT_H__ | |
8 | ||
e773fc93 | 9 | struct xfs_mount; |
5a96a945 | 10 | struct xfs_trans_res; |
e773fc93 | 11 | |
69432832 DC |
12 | /* |
13 | * On-disk Log Format definitions. | |
14 | * | |
15 | * This file contains all the on-disk format definitions used within the log. It | |
16 | * includes the physical log structure itself, as well as all the log item | |
17 | * format structures that are written into the log and intepreted by log | |
18 | * recovery. We start with the physical log format definitions, and then work | |
19 | * through all the log items definitions and everything they encode into the | |
20 | * log. | |
21 | */ | |
c8ce540d | 22 | typedef uint32_t xlog_tid_t; |
fc06c6d0 DC |
23 | |
24 | #define XLOG_MIN_ICLOGS 2 | |
25 | #define XLOG_MAX_ICLOGS 8 | |
26 | #define XLOG_HEADER_MAGIC_NUM 0xFEEDbabe /* Invalid cycle number */ | |
27 | #define XLOG_VERSION_1 1 | |
28 | #define XLOG_VERSION_2 2 /* Large IClogs, Log sunit */ | |
29 | #define XLOG_VERSION_OKBITS (XLOG_VERSION_1 | XLOG_VERSION_2) | |
30 | #define XLOG_MIN_RECORD_BSIZE (16*1024) /* eventually 32k */ | |
31 | #define XLOG_BIG_RECORD_BSIZE (32*1024) /* 32k buffers */ | |
32 | #define XLOG_MAX_RECORD_BSIZE (256*1024) | |
33 | #define XLOG_HEADER_CYCLE_SIZE (32*1024) /* cycle data in header */ | |
34 | #define XLOG_MIN_RECORD_BSHIFT 14 /* 16384 == 1 << 14 */ | |
35 | #define XLOG_BIG_RECORD_BSHIFT 15 /* 32k == 1 << 15 */ | |
36 | #define XLOG_MAX_RECORD_BSHIFT 18 /* 256k == 1 << 18 */ | |
37 | #define XLOG_BTOLSUNIT(log, b) (((b)+(log)->l_mp->m_sb.sb_logsunit-1) / \ | |
38 | (log)->l_mp->m_sb.sb_logsunit) | |
39 | #define XLOG_LSUNITTOB(log, su) ((su) * (log)->l_mp->m_sb.sb_logsunit) | |
40 | ||
41 | #define XLOG_HEADER_SIZE 512 | |
42 | ||
5a96a945 JL |
43 | /* Minimum number of transactions that must fit in the log (defined by mkfs) */ |
44 | #define XFS_MIN_LOG_FACTOR 3 | |
45 | ||
fc06c6d0 DC |
46 | #define XLOG_REC_SHIFT(log) \ |
47 | BTOBB(1 << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \ | |
48 | XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT)) | |
49 | #define XLOG_TOTAL_REC_SHIFT(log) \ | |
50 | BTOBB(XLOG_MAX_ICLOGS << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \ | |
51 | XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT)) | |
52 | ||
53 | /* get lsn fields */ | |
54 | #define CYCLE_LSN(lsn) ((uint)((lsn)>>32)) | |
55 | #define BLOCK_LSN(lsn) ((uint)(lsn)) | |
56 | ||
57 | /* this is used in a spot where we might otherwise double-endian-flip */ | |
58 | #define CYCLE_LSN_DISK(lsn) (((__be32 *)&(lsn))[0]) | |
59 | ||
60 | static inline xfs_lsn_t xlog_assign_lsn(uint cycle, uint block) | |
61 | { | |
62 | return ((xfs_lsn_t)cycle << 32) | block; | |
63 | } | |
64 | ||
65 | static inline uint xlog_get_cycle(char *ptr) | |
66 | { | |
67 | if (be32_to_cpu(*(__be32 *)ptr) == XLOG_HEADER_MAGIC_NUM) | |
68 | return be32_to_cpu(*((__be32 *)ptr + 1)); | |
69 | else | |
70 | return be32_to_cpu(*(__be32 *)ptr); | |
71 | } | |
72 | ||
73 | /* Log Clients */ | |
74 | #define XFS_TRANSACTION 0x69 | |
75 | #define XFS_VOLUME 0x2 | |
76 | #define XFS_LOG 0xaa | |
77 | ||
78 | #define XLOG_UNMOUNT_TYPE 0x556e /* Un for Unmount */ | |
79 | ||
80 | /* Region types for iovec's i_type */ | |
81 | #define XLOG_REG_TYPE_BFORMAT 1 | |
82 | #define XLOG_REG_TYPE_BCHUNK 2 | |
83 | #define XLOG_REG_TYPE_EFI_FORMAT 3 | |
84 | #define XLOG_REG_TYPE_EFD_FORMAT 4 | |
85 | #define XLOG_REG_TYPE_IFORMAT 5 | |
86 | #define XLOG_REG_TYPE_ICORE 6 | |
87 | #define XLOG_REG_TYPE_IEXT 7 | |
88 | #define XLOG_REG_TYPE_IBROOT 8 | |
89 | #define XLOG_REG_TYPE_ILOCAL 9 | |
90 | #define XLOG_REG_TYPE_IATTR_EXT 10 | |
91 | #define XLOG_REG_TYPE_IATTR_BROOT 11 | |
92 | #define XLOG_REG_TYPE_IATTR_LOCAL 12 | |
93 | #define XLOG_REG_TYPE_QFORMAT 13 | |
94 | #define XLOG_REG_TYPE_DQUOT 14 | |
95 | #define XLOG_REG_TYPE_QUOTAOFF 15 | |
96 | #define XLOG_REG_TYPE_LRHEADER 16 | |
97 | #define XLOG_REG_TYPE_UNMOUNT 17 | |
98 | #define XLOG_REG_TYPE_COMMIT 18 | |
99 | #define XLOG_REG_TYPE_TRANSHDR 19 | |
100 | #define XLOG_REG_TYPE_ICREATE 20 | |
5880f2d7 DW |
101 | #define XLOG_REG_TYPE_RUI_FORMAT 21 |
102 | #define XLOG_REG_TYPE_RUD_FORMAT 22 | |
baf4bcac DW |
103 | #define XLOG_REG_TYPE_CUI_FORMAT 23 |
104 | #define XLOG_REG_TYPE_CUD_FORMAT 24 | |
6413a014 DW |
105 | #define XLOG_REG_TYPE_BUI_FORMAT 25 |
106 | #define XLOG_REG_TYPE_BUD_FORMAT 26 | |
107 | #define XLOG_REG_TYPE_MAX 26 | |
fc06c6d0 DC |
108 | |
109 | /* | |
110 | * Flags to log operation header | |
111 | * | |
112 | * The first write of a new transaction will be preceded with a start | |
113 | * record, XLOG_START_TRANS. Once a transaction is committed, a commit | |
114 | * record is written, XLOG_COMMIT_TRANS. If a single region can not fit into | |
115 | * the remainder of the current active in-core log, it is split up into | |
116 | * multiple regions. Each partial region will be marked with a | |
117 | * XLOG_CONTINUE_TRANS until the last one, which gets marked with XLOG_END_TRANS. | |
118 | * | |
119 | */ | |
120 | #define XLOG_START_TRANS 0x01 /* Start a new transaction */ | |
121 | #define XLOG_COMMIT_TRANS 0x02 /* Commit this transaction */ | |
122 | #define XLOG_CONTINUE_TRANS 0x04 /* Cont this trans into new region */ | |
123 | #define XLOG_WAS_CONT_TRANS 0x08 /* Cont this trans into new region */ | |
124 | #define XLOG_END_TRANS 0x10 /* End a continued transaction */ | |
125 | #define XLOG_UNMOUNT_TRANS 0x20 /* Unmount a filesystem transaction */ | |
126 | ||
127 | ||
128 | typedef struct xlog_op_header { | |
129 | __be32 oh_tid; /* transaction id of operation : 4 b */ | |
130 | __be32 oh_len; /* bytes in data region : 4 b */ | |
131 | __u8 oh_clientid; /* who sent me this : 1 b */ | |
132 | __u8 oh_flags; /* : 1 b */ | |
133 | __u16 oh_res2; /* 32 bit align : 2 b */ | |
134 | } xlog_op_header_t; | |
135 | ||
fc06c6d0 DC |
136 | /* valid values for h_fmt */ |
137 | #define XLOG_FMT_UNKNOWN 0 | |
138 | #define XLOG_FMT_LINUX_LE 1 | |
139 | #define XLOG_FMT_LINUX_BE 2 | |
140 | #define XLOG_FMT_IRIX_BE 3 | |
141 | ||
142 | /* our fmt */ | |
143 | #ifdef XFS_NATIVE_HOST | |
144 | #define XLOG_FMT XLOG_FMT_LINUX_BE | |
145 | #else | |
146 | #define XLOG_FMT XLOG_FMT_LINUX_LE | |
147 | #endif | |
148 | ||
149 | typedef struct xlog_rec_header { | |
150 | __be32 h_magicno; /* log record (LR) identifier : 4 */ | |
151 | __be32 h_cycle; /* write cycle of log : 4 */ | |
152 | __be32 h_version; /* LR version : 4 */ | |
153 | __be32 h_len; /* len in bytes; should be 64-bit aligned: 4 */ | |
154 | __be64 h_lsn; /* lsn of this LR : 8 */ | |
155 | __be64 h_tail_lsn; /* lsn of 1st LR w/ buffers not committed: 8 */ | |
156 | __le32 h_crc; /* crc of log record : 4 */ | |
157 | __be32 h_prev_block; /* block number to previous LR : 4 */ | |
158 | __be32 h_num_logops; /* number of log operations in this LR : 4 */ | |
159 | __be32 h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; | |
160 | /* new fields */ | |
161 | __be32 h_fmt; /* format of log record : 4 */ | |
162 | uuid_t h_fs_uuid; /* uuid of FS : 16 */ | |
163 | __be32 h_size; /* iclog size : 4 */ | |
164 | } xlog_rec_header_t; | |
165 | ||
166 | typedef struct xlog_rec_ext_header { | |
167 | __be32 xh_cycle; /* write cycle of log : 4 */ | |
168 | __be32 xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /* : 256 */ | |
169 | } xlog_rec_ext_header_t; | |
170 | ||
171 | /* | |
172 | * Quite misnamed, because this union lays out the actual on-disk log buffer. | |
173 | */ | |
174 | typedef union xlog_in_core2 { | |
175 | xlog_rec_header_t hic_header; | |
176 | xlog_rec_ext_header_t hic_xheader; | |
177 | char hic_sector[XLOG_HEADER_SIZE]; | |
178 | } xlog_in_core_2_t; | |
179 | ||
180 | /* not an on-disk structure, but needed by log recovery in userspace */ | |
181 | typedef struct xfs_log_iovec { | |
182 | void *i_addr; /* beginning address of region */ | |
183 | int i_len; /* length in bytes of region */ | |
184 | uint i_type; /* type of region */ | |
185 | } xfs_log_iovec_t; | |
186 | ||
69432832 | 187 | |
2a3c0acc DC |
188 | /* |
189 | * Transaction Header definitions. | |
190 | * | |
191 | * This is the structure written in the log at the head of every transaction. It | |
192 | * identifies the type and id of the transaction, and contains the number of | |
193 | * items logged by the transaction so we know how many to expect during | |
194 | * recovery. | |
195 | * | |
196 | * Do not change the below structure without redoing the code in | |
197 | * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans(). | |
198 | */ | |
199 | typedef struct xfs_trans_header { | |
200 | uint th_magic; /* magic number */ | |
201 | uint th_type; /* transaction type */ | |
c8ce540d | 202 | int32_t th_tid; /* transaction id (unused) */ |
2a3c0acc DC |
203 | uint th_num_items; /* num items logged by trans */ |
204 | } xfs_trans_header_t; | |
205 | ||
206 | #define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */ | |
207 | ||
710b1e2c CH |
208 | /* |
209 | * The only type valid for th_type in CIL-enabled file system logs: | |
210 | */ | |
211 | #define XFS_TRANS_CHECKPOINT 40 | |
212 | ||
2a3c0acc DC |
213 | /* |
214 | * Log item types. | |
215 | */ | |
216 | #define XFS_LI_EFI 0x1236 | |
217 | #define XFS_LI_EFD 0x1237 | |
218 | #define XFS_LI_IUNLINK 0x1238 | |
219 | #define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */ | |
220 | #define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */ | |
221 | #define XFS_LI_DQUOT 0x123d | |
222 | #define XFS_LI_QUOTAOFF 0x123e | |
223 | #define XFS_LI_ICREATE 0x123f | |
5880f2d7 DW |
224 | #define XFS_LI_RUI 0x1240 /* rmap update intent */ |
225 | #define XFS_LI_RUD 0x1241 | |
baf4bcac DW |
226 | #define XFS_LI_CUI 0x1242 /* refcount update intent */ |
227 | #define XFS_LI_CUD 0x1243 | |
6413a014 DW |
228 | #define XFS_LI_BUI 0x1244 /* bmbt update intent */ |
229 | #define XFS_LI_BUD 0x1245 | |
2a3c0acc DC |
230 | |
231 | #define XFS_LI_TYPE_DESC \ | |
232 | { XFS_LI_EFI, "XFS_LI_EFI" }, \ | |
233 | { XFS_LI_EFD, "XFS_LI_EFD" }, \ | |
234 | { XFS_LI_IUNLINK, "XFS_LI_IUNLINK" }, \ | |
235 | { XFS_LI_INODE, "XFS_LI_INODE" }, \ | |
236 | { XFS_LI_BUF, "XFS_LI_BUF" }, \ | |
237 | { XFS_LI_DQUOT, "XFS_LI_DQUOT" }, \ | |
238 | { XFS_LI_QUOTAOFF, "XFS_LI_QUOTAOFF" }, \ | |
5880f2d7 DW |
239 | { XFS_LI_ICREATE, "XFS_LI_ICREATE" }, \ |
240 | { XFS_LI_RUI, "XFS_LI_RUI" }, \ | |
baf4bcac DW |
241 | { XFS_LI_RUD, "XFS_LI_RUD" }, \ |
242 | { XFS_LI_CUI, "XFS_LI_CUI" }, \ | |
6413a014 DW |
243 | { XFS_LI_CUD, "XFS_LI_CUD" }, \ |
244 | { XFS_LI_BUI, "XFS_LI_BUI" }, \ | |
245 | { XFS_LI_BUD, "XFS_LI_BUD" } | |
2a3c0acc | 246 | |
69432832 DC |
247 | /* |
248 | * Inode Log Item Format definitions. | |
249 | * | |
250 | * This is the structure used to lay out an inode log item in the | |
251 | * log. The size of the inline data/extents/b-tree root to be logged | |
252 | * (if any) is indicated in the ilf_dsize field. Changes to this structure | |
253 | * must be added on to the end. | |
254 | */ | |
06b11321 | 255 | struct xfs_inode_log_format { |
c8ce540d DW |
256 | uint16_t ilf_type; /* inode log item type */ |
257 | uint16_t ilf_size; /* size of this item */ | |
258 | uint32_t ilf_fields; /* flags for fields logged */ | |
259 | uint16_t ilf_asize; /* size of attr d/ext/root */ | |
260 | uint16_t ilf_dsize; /* size of data/ext/root */ | |
20413e37 | 261 | uint32_t ilf_pad; /* pad for 64 bit boundary */ |
c8ce540d | 262 | uint64_t ilf_ino; /* inode number */ |
69432832 | 263 | union { |
c8ce540d | 264 | uint32_t ilfu_rdev; /* rdev value for dev inode*/ |
2015a63d | 265 | uint8_t __pad[16]; /* unused */ |
69432832 | 266 | } ilf_u; |
c8ce540d DW |
267 | int64_t ilf_blkno; /* blkno of inode buffer */ |
268 | int32_t ilf_len; /* len of inode buffer */ | |
269 | int32_t ilf_boffset; /* off of inode in buffer */ | |
06b11321 | 270 | }; |
69432832 | 271 | |
20413e37 DC |
272 | /* |
273 | * Old 32 bit systems will log in this format without the 64 bit | |
274 | * alignment padding. Recovery will detect this and convert it to the | |
275 | * correct format. | |
276 | */ | |
277 | struct xfs_inode_log_format_32 { | |
c8ce540d DW |
278 | uint16_t ilf_type; /* inode log item type */ |
279 | uint16_t ilf_size; /* size of this item */ | |
280 | uint32_t ilf_fields; /* flags for fields logged */ | |
281 | uint16_t ilf_asize; /* size of attr d/ext/root */ | |
282 | uint16_t ilf_dsize; /* size of data/ext/root */ | |
c8ce540d | 283 | uint64_t ilf_ino; /* inode number */ |
69432832 | 284 | union { |
c8ce540d | 285 | uint32_t ilfu_rdev; /* rdev value for dev inode*/ |
2015a63d | 286 | uint8_t __pad[16]; /* unused */ |
69432832 | 287 | } ilf_u; |
c8ce540d DW |
288 | int64_t ilf_blkno; /* blkno of inode buffer */ |
289 | int32_t ilf_len; /* len of inode buffer */ | |
290 | int32_t ilf_boffset; /* off of inode in buffer */ | |
20413e37 | 291 | } __attribute__((packed)); |
69432832 | 292 | |
f8d55aa0 | 293 | |
69432832 DC |
294 | /* |
295 | * Flags for xfs_trans_log_inode flags field. | |
296 | */ | |
297 | #define XFS_ILOG_CORE 0x001 /* log standard inode fields */ | |
298 | #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */ | |
299 | #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */ | |
300 | #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */ | |
301 | #define XFS_ILOG_DEV 0x010 /* log the dev field */ | |
42b67dc6 | 302 | #define XFS_ILOG_UUID 0x020 /* added long ago, but never used */ |
69432832 DC |
303 | #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */ |
304 | #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ | |
305 | #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ | |
638f4416 DC |
306 | #define XFS_ILOG_DOWNER 0x200 /* change the data fork owner on replay */ |
307 | #define XFS_ILOG_AOWNER 0x400 /* change the attr fork owner on replay */ | |
69432832 DC |
308 | |
309 | ||
310 | /* | |
311 | * The timestamps are dirty, but not necessarily anything else in the inode | |
312 | * core. Unlike the other fields above this one must never make it to disk | |
313 | * in the ilf_fields of the inode_log_format, but is purely store in-memory in | |
314 | * ili_fields in the inode_log_item. | |
315 | */ | |
316 | #define XFS_ILOG_TIMESTAMP 0x4000 | |
317 | ||
318 | #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ | |
319 | XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ | |
42b67dc6 CH |
320 | XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ |
321 | XFS_ILOG_ABROOT | XFS_ILOG_DOWNER | \ | |
322 | XFS_ILOG_AOWNER) | |
69432832 DC |
323 | |
324 | #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ | |
325 | XFS_ILOG_DBROOT) | |
326 | ||
327 | #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ | |
328 | XFS_ILOG_ABROOT) | |
329 | ||
330 | #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ | |
331 | XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ | |
42b67dc6 CH |
332 | XFS_ILOG_DEV | XFS_ILOG_ADATA | \ |
333 | XFS_ILOG_AEXT | XFS_ILOG_ABROOT | \ | |
334 | XFS_ILOG_TIMESTAMP | XFS_ILOG_DOWNER | \ | |
335 | XFS_ILOG_AOWNER) | |
69432832 DC |
336 | |
337 | static inline int xfs_ilog_fbroot(int w) | |
338 | { | |
339 | return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT); | |
340 | } | |
341 | ||
342 | static inline int xfs_ilog_fext(int w) | |
343 | { | |
344 | return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT); | |
345 | } | |
346 | ||
347 | static inline int xfs_ilog_fdata(int w) | |
348 | { | |
349 | return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA); | |
350 | } | |
351 | ||
352 | /* | |
353 | * Incore version of the on-disk inode core structures. We log this directly | |
354 | * into the journal in host CPU format (for better or worse) and as such | |
355 | * directly mirrors the xfs_dinode structure as it must contain all the same | |
356 | * information. | |
357 | */ | |
358 | typedef struct xfs_ictimestamp { | |
c8ce540d DW |
359 | int32_t t_sec; /* timestamp seconds */ |
360 | int32_t t_nsec; /* timestamp nanoseconds */ | |
69432832 DC |
361 | } xfs_ictimestamp_t; |
362 | ||
363 | /* | |
f8d55aa0 DC |
364 | * Define the format of the inode core that is logged. This structure must be |
365 | * kept identical to struct xfs_dinode except for the endianness annotations. | |
69432832 | 366 | */ |
f8d55aa0 | 367 | struct xfs_log_dinode { |
c8ce540d DW |
368 | uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */ |
369 | uint16_t di_mode; /* mode and type of file */ | |
370 | int8_t di_version; /* inode version */ | |
371 | int8_t di_format; /* format of di_c data */ | |
372 | uint8_t di_pad3[2]; /* unused in v2/3 inodes */ | |
373 | uint32_t di_uid; /* owner's user id */ | |
374 | uint32_t di_gid; /* owner's group id */ | |
375 | uint32_t di_nlink; /* number of links to file */ | |
376 | uint16_t di_projid_lo; /* lower part of owner's project id */ | |
377 | uint16_t di_projid_hi; /* higher part of owner's project id */ | |
378 | uint8_t di_pad[6]; /* unused, zeroed space */ | |
379 | uint16_t di_flushiter; /* incremented on flush */ | |
69432832 DC |
380 | xfs_ictimestamp_t di_atime; /* time last accessed */ |
381 | xfs_ictimestamp_t di_mtime; /* time last modified */ | |
382 | xfs_ictimestamp_t di_ctime; /* time created/inode modified */ | |
383 | xfs_fsize_t di_size; /* number of bytes in file */ | |
d5cf09ba | 384 | xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */ |
69432832 DC |
385 | xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ |
386 | xfs_extnum_t di_nextents; /* number of extents in data fork */ | |
387 | xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ | |
c8ce540d DW |
388 | uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ |
389 | int8_t di_aformat; /* format of attr fork's data */ | |
390 | uint32_t di_dmevmask; /* DMIG event mask */ | |
391 | uint16_t di_dmstate; /* DMIG state info */ | |
392 | uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ | |
393 | uint32_t di_gen; /* generation number */ | |
69432832 DC |
394 | |
395 | /* di_next_unlinked is the only non-core field in the old dinode */ | |
396 | xfs_agino_t di_next_unlinked;/* agi unlinked list ptr */ | |
397 | ||
398 | /* start of the extended dinode, writable fields */ | |
c8ce540d DW |
399 | uint32_t di_crc; /* CRC of the inode */ |
400 | uint64_t di_changecount; /* number of attribute changes */ | |
69432832 | 401 | xfs_lsn_t di_lsn; /* flush sequence */ |
c8ce540d DW |
402 | uint64_t di_flags2; /* more random flags */ |
403 | uint32_t di_cowextsize; /* basic cow extent size for file */ | |
404 | uint8_t di_pad2[12]; /* more padding for future expansion */ | |
69432832 DC |
405 | |
406 | /* fields only written to during inode creation */ | |
407 | xfs_ictimestamp_t di_crtime; /* time created */ | |
408 | xfs_ino_t di_ino; /* inode number */ | |
409 | uuid_t di_uuid; /* UUID of the filesystem */ | |
410 | ||
411 | /* structure must be padded to 64 bit alignment */ | |
f8d55aa0 | 412 | }; |
69432832 | 413 | |
f8d55aa0 | 414 | static inline uint xfs_log_dinode_size(int version) |
69432832 DC |
415 | { |
416 | if (version == 3) | |
f8d55aa0 DC |
417 | return sizeof(struct xfs_log_dinode); |
418 | return offsetof(struct xfs_log_dinode, di_next_unlinked); | |
69432832 | 419 | } |
a8da0da2 DC |
420 | |
421 | /* | |
422 | * Buffer Log Format defintions | |
423 | * | |
424 | * These are the physical dirty bitmap defintions for the log format structure. | |
425 | */ | |
426 | #define XFS_BLF_CHUNK 128 | |
427 | #define XFS_BLF_SHIFT 7 | |
428 | #define BIT_TO_WORD_SHIFT 5 | |
429 | #define NBWORD (NBBY * sizeof(unsigned int)) | |
430 | ||
431 | /* | |
432 | * This flag indicates that the buffer contains on disk inodes | |
433 | * and requires special recovery handling. | |
434 | */ | |
435 | #define XFS_BLF_INODE_BUF (1<<0) | |
436 | ||
437 | /* | |
438 | * This flag indicates that the buffer should not be replayed | |
439 | * during recovery because its blocks are being freed. | |
440 | */ | |
441 | #define XFS_BLF_CANCEL (1<<1) | |
442 | ||
443 | /* | |
444 | * This flag indicates that the buffer contains on disk | |
445 | * user or group dquots and may require special recovery handling. | |
446 | */ | |
447 | #define XFS_BLF_UDQUOT_BUF (1<<2) | |
448 | #define XFS_BLF_PDQUOT_BUF (1<<3) | |
449 | #define XFS_BLF_GDQUOT_BUF (1<<4) | |
450 | ||
451 | /* | |
452 | * This is the structure used to lay out a buf log item in the | |
453 | * log. The data map describes which 128 byte chunks of the buffer | |
454 | * have been logged. | |
455 | */ | |
456 | #define XFS_BLF_DATAMAP_SIZE ((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / NBWORD) | |
457 | ||
458 | typedef struct xfs_buf_log_format { | |
459 | unsigned short blf_type; /* buf log item type indicator */ | |
460 | unsigned short blf_size; /* size of this item */ | |
755c7bf5 DW |
461 | unsigned short blf_flags; /* misc state */ |
462 | unsigned short blf_len; /* number of blocks in this buf */ | |
c8ce540d | 463 | int64_t blf_blkno; /* starting blkno of this buf */ |
a8da0da2 DC |
464 | unsigned int blf_map_size; /* used size of data bitmap in words */ |
465 | unsigned int blf_data_map[XFS_BLF_DATAMAP_SIZE]; /* dirty bitmap */ | |
466 | } xfs_buf_log_format_t; | |
467 | ||
468 | /* | |
469 | * All buffers now need to tell recovery where the magic number | |
470 | * is so that it can verify and calculate the CRCs on the buffer correctly | |
471 | * once the changes have been replayed into the buffer. | |
472 | * | |
473 | * The type value is held in the upper 5 bits of the blf_flags field, which is | |
474 | * an unsigned 16 bit field. Hence we need to shift it 11 bits up and down. | |
475 | */ | |
476 | #define XFS_BLFT_BITS 5 | |
477 | #define XFS_BLFT_SHIFT 11 | |
478 | #define XFS_BLFT_MASK (((1 << XFS_BLFT_BITS) - 1) << XFS_BLFT_SHIFT) | |
479 | ||
480 | enum xfs_blft { | |
481 | XFS_BLFT_UNKNOWN_BUF = 0, | |
482 | XFS_BLFT_UDQUOT_BUF, | |
483 | XFS_BLFT_PDQUOT_BUF, | |
484 | XFS_BLFT_GDQUOT_BUF, | |
485 | XFS_BLFT_BTREE_BUF, | |
486 | XFS_BLFT_AGF_BUF, | |
487 | XFS_BLFT_AGFL_BUF, | |
488 | XFS_BLFT_AGI_BUF, | |
489 | XFS_BLFT_DINO_BUF, | |
490 | XFS_BLFT_SYMLINK_BUF, | |
491 | XFS_BLFT_DIR_BLOCK_BUF, | |
492 | XFS_BLFT_DIR_DATA_BUF, | |
493 | XFS_BLFT_DIR_FREE_BUF, | |
494 | XFS_BLFT_DIR_LEAF1_BUF, | |
495 | XFS_BLFT_DIR_LEAFN_BUF, | |
496 | XFS_BLFT_DA_NODE_BUF, | |
497 | XFS_BLFT_ATTR_LEAF_BUF, | |
498 | XFS_BLFT_ATTR_RMT_BUF, | |
499 | XFS_BLFT_SB_BUF, | |
f67ca6ec DC |
500 | XFS_BLFT_RTBITMAP_BUF, |
501 | XFS_BLFT_RTSUMMARY_BUF, | |
a8da0da2 DC |
502 | XFS_BLFT_MAX_BUF = (1 << XFS_BLFT_BITS), |
503 | }; | |
504 | ||
505 | static inline void | |
506 | xfs_blft_to_flags(struct xfs_buf_log_format *blf, enum xfs_blft type) | |
507 | { | |
508 | ASSERT(type > XFS_BLFT_UNKNOWN_BUF && type < XFS_BLFT_MAX_BUF); | |
509 | blf->blf_flags &= ~XFS_BLFT_MASK; | |
510 | blf->blf_flags |= ((type << XFS_BLFT_SHIFT) & XFS_BLFT_MASK); | |
511 | } | |
512 | ||
c8ce540d | 513 | static inline uint16_t |
a8da0da2 DC |
514 | xfs_blft_from_flags(struct xfs_buf_log_format *blf) |
515 | { | |
516 | return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT; | |
517 | } | |
518 | ||
9fbe24d9 DC |
519 | /* |
520 | * EFI/EFD log format definitions | |
521 | */ | |
522 | typedef struct xfs_extent { | |
d5cf09ba | 523 | xfs_fsblock_t ext_start; |
9fbe24d9 DC |
524 | xfs_extlen_t ext_len; |
525 | } xfs_extent_t; | |
526 | ||
527 | /* | |
528 | * Since an xfs_extent_t has types (start:64, len: 32) | |
529 | * there are different alignments on 32 bit and 64 bit kernels. | |
530 | * So we provide the different variants for use by a | |
531 | * conversion routine. | |
532 | */ | |
533 | typedef struct xfs_extent_32 { | |
c8ce540d DW |
534 | uint64_t ext_start; |
535 | uint32_t ext_len; | |
9fbe24d9 DC |
536 | } __attribute__((packed)) xfs_extent_32_t; |
537 | ||
538 | typedef struct xfs_extent_64 { | |
c8ce540d DW |
539 | uint64_t ext_start; |
540 | uint32_t ext_len; | |
541 | uint32_t ext_pad; | |
9fbe24d9 DC |
542 | } xfs_extent_64_t; |
543 | ||
544 | /* | |
545 | * This is the structure used to lay out an efi log item in the | |
546 | * log. The efi_extents field is a variable size array whose | |
547 | * size is given by efi_nextents. | |
548 | */ | |
549 | typedef struct xfs_efi_log_format { | |
c8ce540d DW |
550 | uint16_t efi_type; /* efi log item type */ |
551 | uint16_t efi_size; /* size of this item */ | |
552 | uint32_t efi_nextents; /* # extents to free */ | |
553 | uint64_t efi_id; /* efi identifier */ | |
9fbe24d9 DC |
554 | xfs_extent_t efi_extents[1]; /* array of extents to free */ |
555 | } xfs_efi_log_format_t; | |
556 | ||
557 | typedef struct xfs_efi_log_format_32 { | |
c8ce540d DW |
558 | uint16_t efi_type; /* efi log item type */ |
559 | uint16_t efi_size; /* size of this item */ | |
560 | uint32_t efi_nextents; /* # extents to free */ | |
561 | uint64_t efi_id; /* efi identifier */ | |
9fbe24d9 DC |
562 | xfs_extent_32_t efi_extents[1]; /* array of extents to free */ |
563 | } __attribute__((packed)) xfs_efi_log_format_32_t; | |
564 | ||
565 | typedef struct xfs_efi_log_format_64 { | |
c8ce540d DW |
566 | uint16_t efi_type; /* efi log item type */ |
567 | uint16_t efi_size; /* size of this item */ | |
568 | uint32_t efi_nextents; /* # extents to free */ | |
569 | uint64_t efi_id; /* efi identifier */ | |
9fbe24d9 DC |
570 | xfs_extent_64_t efi_extents[1]; /* array of extents to free */ |
571 | } xfs_efi_log_format_64_t; | |
572 | ||
573 | /* | |
574 | * This is the structure used to lay out an efd log item in the | |
575 | * log. The efd_extents array is a variable size array whose | |
576 | * size is given by efd_nextents; | |
577 | */ | |
578 | typedef struct xfs_efd_log_format { | |
c8ce540d DW |
579 | uint16_t efd_type; /* efd log item type */ |
580 | uint16_t efd_size; /* size of this item */ | |
581 | uint32_t efd_nextents; /* # of extents freed */ | |
582 | uint64_t efd_efi_id; /* id of corresponding efi */ | |
9fbe24d9 DC |
583 | xfs_extent_t efd_extents[1]; /* array of extents freed */ |
584 | } xfs_efd_log_format_t; | |
585 | ||
586 | typedef struct xfs_efd_log_format_32 { | |
c8ce540d DW |
587 | uint16_t efd_type; /* efd log item type */ |
588 | uint16_t efd_size; /* size of this item */ | |
589 | uint32_t efd_nextents; /* # of extents freed */ | |
590 | uint64_t efd_efi_id; /* id of corresponding efi */ | |
9fbe24d9 DC |
591 | xfs_extent_32_t efd_extents[1]; /* array of extents freed */ |
592 | } __attribute__((packed)) xfs_efd_log_format_32_t; | |
593 | ||
594 | typedef struct xfs_efd_log_format_64 { | |
c8ce540d DW |
595 | uint16_t efd_type; /* efd log item type */ |
596 | uint16_t efd_size; /* size of this item */ | |
597 | uint32_t efd_nextents; /* # of extents freed */ | |
598 | uint64_t efd_efi_id; /* id of corresponding efi */ | |
9fbe24d9 DC |
599 | xfs_extent_64_t efd_extents[1]; /* array of extents freed */ |
600 | } xfs_efd_log_format_64_t; | |
601 | ||
5880f2d7 DW |
602 | /* |
603 | * RUI/RUD (reverse mapping) log format definitions | |
604 | */ | |
605 | struct xfs_map_extent { | |
c8ce540d DW |
606 | uint64_t me_owner; |
607 | uint64_t me_startblock; | |
608 | uint64_t me_startoff; | |
609 | uint32_t me_len; | |
610 | uint32_t me_flags; | |
5880f2d7 DW |
611 | }; |
612 | ||
613 | /* rmap me_flags: upper bits are flags, lower byte is type code */ | |
614 | #define XFS_RMAP_EXTENT_MAP 1 | |
0e07c039 | 615 | #define XFS_RMAP_EXTENT_MAP_SHARED 2 |
5880f2d7 | 616 | #define XFS_RMAP_EXTENT_UNMAP 3 |
0e07c039 | 617 | #define XFS_RMAP_EXTENT_UNMAP_SHARED 4 |
5880f2d7 | 618 | #define XFS_RMAP_EXTENT_CONVERT 5 |
0e07c039 | 619 | #define XFS_RMAP_EXTENT_CONVERT_SHARED 6 |
5880f2d7 DW |
620 | #define XFS_RMAP_EXTENT_ALLOC 7 |
621 | #define XFS_RMAP_EXTENT_FREE 8 | |
622 | #define XFS_RMAP_EXTENT_TYPE_MASK 0xFF | |
623 | ||
624 | #define XFS_RMAP_EXTENT_ATTR_FORK (1U << 31) | |
625 | #define XFS_RMAP_EXTENT_BMBT_BLOCK (1U << 30) | |
626 | #define XFS_RMAP_EXTENT_UNWRITTEN (1U << 29) | |
627 | ||
628 | #define XFS_RMAP_EXTENT_FLAGS (XFS_RMAP_EXTENT_TYPE_MASK | \ | |
629 | XFS_RMAP_EXTENT_ATTR_FORK | \ | |
630 | XFS_RMAP_EXTENT_BMBT_BLOCK | \ | |
631 | XFS_RMAP_EXTENT_UNWRITTEN) | |
632 | ||
633 | /* | |
634 | * This is the structure used to lay out an rui log item in the | |
635 | * log. The rui_extents field is a variable size array whose | |
636 | * size is given by rui_nextents. | |
637 | */ | |
638 | struct xfs_rui_log_format { | |
c8ce540d DW |
639 | uint16_t rui_type; /* rui log item type */ |
640 | uint16_t rui_size; /* size of this item */ | |
641 | uint32_t rui_nextents; /* # extents to free */ | |
642 | uint64_t rui_id; /* rui identifier */ | |
cd00158c | 643 | struct xfs_map_extent rui_extents[]; /* array of extents to rmap */ |
5880f2d7 DW |
644 | }; |
645 | ||
cd00158c DW |
646 | static inline size_t |
647 | xfs_rui_log_format_sizeof( | |
648 | unsigned int nr) | |
649 | { | |
650 | return sizeof(struct xfs_rui_log_format) + | |
651 | nr * sizeof(struct xfs_map_extent); | |
652 | } | |
653 | ||
5880f2d7 DW |
654 | /* |
655 | * This is the structure used to lay out an rud log item in the | |
656 | * log. The rud_extents array is a variable size array whose | |
657 | * size is given by rud_nextents; | |
658 | */ | |
659 | struct xfs_rud_log_format { | |
c8ce540d DW |
660 | uint16_t rud_type; /* rud log item type */ |
661 | uint16_t rud_size; /* size of this item */ | |
662 | uint32_t __pad; | |
663 | uint64_t rud_rui_id; /* id of corresponding rui */ | |
5880f2d7 DW |
664 | }; |
665 | ||
baf4bcac DW |
666 | /* |
667 | * CUI/CUD (refcount update) log format definitions | |
668 | */ | |
669 | struct xfs_phys_extent { | |
c8ce540d DW |
670 | uint64_t pe_startblock; |
671 | uint32_t pe_len; | |
672 | uint32_t pe_flags; | |
baf4bcac DW |
673 | }; |
674 | ||
675 | /* refcount pe_flags: upper bits are flags, lower byte is type code */ | |
676 | /* Type codes are taken directly from enum xfs_refcount_intent_type. */ | |
677 | #define XFS_REFCOUNT_EXTENT_TYPE_MASK 0xFF | |
678 | ||
679 | #define XFS_REFCOUNT_EXTENT_FLAGS (XFS_REFCOUNT_EXTENT_TYPE_MASK) | |
680 | ||
681 | /* | |
682 | * This is the structure used to lay out a cui log item in the | |
683 | * log. The cui_extents field is a variable size array whose | |
684 | * size is given by cui_nextents. | |
685 | */ | |
686 | struct xfs_cui_log_format { | |
c8ce540d DW |
687 | uint16_t cui_type; /* cui log item type */ |
688 | uint16_t cui_size; /* size of this item */ | |
689 | uint32_t cui_nextents; /* # extents to free */ | |
690 | uint64_t cui_id; /* cui identifier */ | |
baf4bcac DW |
691 | struct xfs_phys_extent cui_extents[]; /* array of extents */ |
692 | }; | |
693 | ||
694 | static inline size_t | |
695 | xfs_cui_log_format_sizeof( | |
696 | unsigned int nr) | |
697 | { | |
698 | return sizeof(struct xfs_cui_log_format) + | |
699 | nr * sizeof(struct xfs_phys_extent); | |
700 | } | |
701 | ||
702 | /* | |
703 | * This is the structure used to lay out a cud log item in the | |
704 | * log. The cud_extents array is a variable size array whose | |
705 | * size is given by cud_nextents; | |
706 | */ | |
707 | struct xfs_cud_log_format { | |
c8ce540d DW |
708 | uint16_t cud_type; /* cud log item type */ |
709 | uint16_t cud_size; /* size of this item */ | |
710 | uint32_t __pad; | |
711 | uint64_t cud_cui_id; /* id of corresponding cui */ | |
baf4bcac DW |
712 | }; |
713 | ||
6413a014 DW |
714 | /* |
715 | * BUI/BUD (inode block mapping) log format definitions | |
716 | */ | |
717 | ||
718 | /* bmbt me_flags: upper bits are flags, lower byte is type code */ | |
719 | /* Type codes are taken directly from enum xfs_bmap_intent_type. */ | |
720 | #define XFS_BMAP_EXTENT_TYPE_MASK 0xFF | |
721 | ||
722 | #define XFS_BMAP_EXTENT_ATTR_FORK (1U << 31) | |
723 | #define XFS_BMAP_EXTENT_UNWRITTEN (1U << 30) | |
724 | ||
725 | #define XFS_BMAP_EXTENT_FLAGS (XFS_BMAP_EXTENT_TYPE_MASK | \ | |
726 | XFS_BMAP_EXTENT_ATTR_FORK | \ | |
727 | XFS_BMAP_EXTENT_UNWRITTEN) | |
728 | ||
729 | /* | |
730 | * This is the structure used to lay out an bui log item in the | |
731 | * log. The bui_extents field is a variable size array whose | |
732 | * size is given by bui_nextents. | |
733 | */ | |
734 | struct xfs_bui_log_format { | |
c8ce540d DW |
735 | uint16_t bui_type; /* bui log item type */ |
736 | uint16_t bui_size; /* size of this item */ | |
737 | uint32_t bui_nextents; /* # extents to free */ | |
738 | uint64_t bui_id; /* bui identifier */ | |
6413a014 DW |
739 | struct xfs_map_extent bui_extents[]; /* array of extents to bmap */ |
740 | }; | |
741 | ||
742 | static inline size_t | |
743 | xfs_bui_log_format_sizeof( | |
744 | unsigned int nr) | |
745 | { | |
746 | return sizeof(struct xfs_bui_log_format) + | |
747 | nr * sizeof(struct xfs_map_extent); | |
748 | } | |
749 | ||
750 | /* | |
751 | * This is the structure used to lay out an bud log item in the | |
752 | * log. The bud_extents array is a variable size array whose | |
753 | * size is given by bud_nextents; | |
754 | */ | |
755 | struct xfs_bud_log_format { | |
c8ce540d DW |
756 | uint16_t bud_type; /* bud log item type */ |
757 | uint16_t bud_size; /* size of this item */ | |
758 | uint32_t __pad; | |
759 | uint64_t bud_bui_id; /* id of corresponding bui */ | |
6413a014 DW |
760 | }; |
761 | ||
6ca1c906 DC |
762 | /* |
763 | * Dquot Log format definitions. | |
764 | * | |
765 | * The first two fields must be the type and size fitting into | |
766 | * 32 bits : log_recovery code assumes that. | |
767 | */ | |
768 | typedef struct xfs_dq_logformat { | |
c8ce540d DW |
769 | uint16_t qlf_type; /* dquot log item type */ |
770 | uint16_t qlf_size; /* size of this item */ | |
6ca1c906 | 771 | xfs_dqid_t qlf_id; /* usr/grp/proj id : 32 bits */ |
c8ce540d DW |
772 | int64_t qlf_blkno; /* blkno of dquot buffer */ |
773 | int32_t qlf_len; /* len of dquot buffer */ | |
774 | uint32_t qlf_boffset; /* off of dquot in buffer */ | |
6ca1c906 DC |
775 | } xfs_dq_logformat_t; |
776 | ||
777 | /* | |
778 | * log format struct for QUOTAOFF records. | |
779 | * The first two fields must be the type and size fitting into | |
780 | * 32 bits : log_recovery code assumes that. | |
781 | * We write two LI_QUOTAOFF logitems per quotaoff, the last one keeps a pointer | |
782 | * to the first and ensures that the first logitem is taken out of the AIL | |
783 | * only when the last one is securely committed. | |
784 | */ | |
785 | typedef struct xfs_qoff_logformat { | |
786 | unsigned short qf_type; /* quotaoff log item type */ | |
787 | unsigned short qf_size; /* size of this item */ | |
788 | unsigned int qf_flags; /* USR and/or GRP */ | |
789 | char qf_pad[12]; /* padding for future */ | |
790 | } xfs_qoff_logformat_t; | |
791 | ||
6ca1c906 DC |
792 | /* |
793 | * Disk quotas status in m_qflags, and also sb_qflags. 16 bits. | |
794 | */ | |
795 | #define XFS_UQUOTA_ACCT 0x0001 /* user quota accounting ON */ | |
796 | #define XFS_UQUOTA_ENFD 0x0002 /* user quota limits enforced */ | |
797 | #define XFS_UQUOTA_CHKD 0x0004 /* quotacheck run on usr quotas */ | |
798 | #define XFS_PQUOTA_ACCT 0x0008 /* project quota accounting ON */ | |
799 | #define XFS_OQUOTA_ENFD 0x0010 /* other (grp/prj) quota limits enforced */ | |
800 | #define XFS_OQUOTA_CHKD 0x0020 /* quotacheck run on other (grp/prj) quotas */ | |
801 | #define XFS_GQUOTA_ACCT 0x0040 /* group quota accounting ON */ | |
802 | ||
803 | /* | |
804 | * Conversion to and from the combined OQUOTA flag (if necessary) | |
805 | * is done only in xfs_sb_qflags_to_disk() and xfs_sb_qflags_from_disk() | |
806 | */ | |
807 | #define XFS_GQUOTA_ENFD 0x0080 /* group quota limits enforced */ | |
808 | #define XFS_GQUOTA_CHKD 0x0100 /* quotacheck run on group quotas */ | |
809 | #define XFS_PQUOTA_ENFD 0x0200 /* project quota limits enforced */ | |
810 | #define XFS_PQUOTA_CHKD 0x0400 /* quotacheck run on project quotas */ | |
811 | ||
812 | #define XFS_ALL_QUOTA_ACCT \ | |
813 | (XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT) | |
814 | #define XFS_ALL_QUOTA_ENFD \ | |
815 | (XFS_UQUOTA_ENFD | XFS_GQUOTA_ENFD | XFS_PQUOTA_ENFD) | |
816 | #define XFS_ALL_QUOTA_CHKD \ | |
817 | (XFS_UQUOTA_CHKD | XFS_GQUOTA_CHKD | XFS_PQUOTA_CHKD) | |
818 | ||
1d03c6fa DC |
819 | #define XFS_MOUNT_QUOTA_ALL (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\ |
820 | XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\ | |
821 | XFS_GQUOTA_ENFD|XFS_GQUOTA_CHKD|\ | |
822 | XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD|\ | |
823 | XFS_PQUOTA_CHKD) | |
824 | ||
9cd047f3 DC |
825 | /* |
826 | * Inode create log item structure | |
827 | * | |
828 | * Log recovery assumes the first two entries are the type and size and they fit | |
829 | * in 32 bits. Also in host order (ugh) so they have to be 32 bit aligned so | |
830 | * decoding can be done correctly. | |
831 | */ | |
832 | struct xfs_icreate_log { | |
c8ce540d DW |
833 | uint16_t icl_type; /* type of log format structure */ |
834 | uint16_t icl_size; /* size of log format structure */ | |
9cd047f3 DC |
835 | __be32 icl_ag; /* ag being allocated in */ |
836 | __be32 icl_agbno; /* start block of inode range */ | |
837 | __be32 icl_count; /* number of inodes to initialise */ | |
838 | __be32 icl_isize; /* size of inodes */ | |
839 | __be32 icl_length; /* length of extent to initialise */ | |
840 | __be32 icl_gen; /* inode generation number to use */ | |
841 | }; | |
842 | ||
fc06c6d0 | 843 | #endif /* __XFS_LOG_FORMAT_H__ */ |