2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
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.
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.
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
18 #ifndef __XFS_LOG_FORMAT_H__
19 #define __XFS_LOG_FORMAT_H__
22 * On-disk Log Format definitions.
24 * This file contains all the on-disk format definitions used within the log. It
25 * includes the physical log structure itself, as well as all the log item
26 * format structures that are written into the log and intepreted by log
27 * recovery. We start with the physical log format definitions, and then work
28 * through all the log items definitions and everything they encode into the
31 typedef __uint32_t xlog_tid_t
;
33 #define XLOG_MIN_ICLOGS 2
34 #define XLOG_MAX_ICLOGS 8
35 #define XLOG_HEADER_MAGIC_NUM 0xFEEDbabe /* Invalid cycle number */
36 #define XLOG_VERSION_1 1
37 #define XLOG_VERSION_2 2 /* Large IClogs, Log sunit */
38 #define XLOG_VERSION_OKBITS (XLOG_VERSION_1 | XLOG_VERSION_2)
39 #define XLOG_MIN_RECORD_BSIZE (16*1024) /* eventually 32k */
40 #define XLOG_BIG_RECORD_BSIZE (32*1024) /* 32k buffers */
41 #define XLOG_MAX_RECORD_BSIZE (256*1024)
42 #define XLOG_HEADER_CYCLE_SIZE (32*1024) /* cycle data in header */
43 #define XLOG_MIN_RECORD_BSHIFT 14 /* 16384 == 1 << 14 */
44 #define XLOG_BIG_RECORD_BSHIFT 15 /* 32k == 1 << 15 */
45 #define XLOG_MAX_RECORD_BSHIFT 18 /* 256k == 1 << 18 */
46 #define XLOG_BTOLSUNIT(log, b) (((b)+(log)->l_mp->m_sb.sb_logsunit-1) / \
47 (log)->l_mp->m_sb.sb_logsunit)
48 #define XLOG_LSUNITTOB(log, su) ((su) * (log)->l_mp->m_sb.sb_logsunit)
50 #define XLOG_HEADER_SIZE 512
52 #define XLOG_REC_SHIFT(log) \
53 BTOBB(1 << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \
54 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
55 #define XLOG_TOTAL_REC_SHIFT(log) \
56 BTOBB(XLOG_MAX_ICLOGS << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \
57 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
60 #define CYCLE_LSN(lsn) ((uint)((lsn)>>32))
61 #define BLOCK_LSN(lsn) ((uint)(lsn))
63 /* this is used in a spot where we might otherwise double-endian-flip */
64 #define CYCLE_LSN_DISK(lsn) (((__be32 *)&(lsn))[0])
66 static inline xfs_lsn_t
xlog_assign_lsn(uint cycle
, uint block
)
68 return ((xfs_lsn_t
)cycle
<< 32) | block
;
71 static inline uint
xlog_get_cycle(char *ptr
)
73 if (be32_to_cpu(*(__be32
*)ptr
) == XLOG_HEADER_MAGIC_NUM
)
74 return be32_to_cpu(*((__be32
*)ptr
+ 1));
76 return be32_to_cpu(*(__be32
*)ptr
);
80 #define XFS_TRANSACTION 0x69
81 #define XFS_VOLUME 0x2
84 #define XLOG_UNMOUNT_TYPE 0x556e /* Un for Unmount */
86 /* Region types for iovec's i_type */
87 #define XLOG_REG_TYPE_BFORMAT 1
88 #define XLOG_REG_TYPE_BCHUNK 2
89 #define XLOG_REG_TYPE_EFI_FORMAT 3
90 #define XLOG_REG_TYPE_EFD_FORMAT 4
91 #define XLOG_REG_TYPE_IFORMAT 5
92 #define XLOG_REG_TYPE_ICORE 6
93 #define XLOG_REG_TYPE_IEXT 7
94 #define XLOG_REG_TYPE_IBROOT 8
95 #define XLOG_REG_TYPE_ILOCAL 9
96 #define XLOG_REG_TYPE_IATTR_EXT 10
97 #define XLOG_REG_TYPE_IATTR_BROOT 11
98 #define XLOG_REG_TYPE_IATTR_LOCAL 12
99 #define XLOG_REG_TYPE_QFORMAT 13
100 #define XLOG_REG_TYPE_DQUOT 14
101 #define XLOG_REG_TYPE_QUOTAOFF 15
102 #define XLOG_REG_TYPE_LRHEADER 16
103 #define XLOG_REG_TYPE_UNMOUNT 17
104 #define XLOG_REG_TYPE_COMMIT 18
105 #define XLOG_REG_TYPE_TRANSHDR 19
106 #define XLOG_REG_TYPE_ICREATE 20
107 #define XLOG_REG_TYPE_MAX 20
110 * Flags to log operation header
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.
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 */
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 */
137 /* valid values for h_fmt */
138 #define XLOG_FMT_UNKNOWN 0
139 #define XLOG_FMT_LINUX_LE 1
140 #define XLOG_FMT_LINUX_BE 2
141 #define XLOG_FMT_IRIX_BE 3
144 #ifdef XFS_NATIVE_HOST
145 #define XLOG_FMT XLOG_FMT_LINUX_BE
147 #define XLOG_FMT XLOG_FMT_LINUX_LE
150 typedef struct xlog_rec_header
{
151 __be32 h_magicno
; /* log record (LR) identifier : 4 */
152 __be32 h_cycle
; /* write cycle of log : 4 */
153 __be32 h_version
; /* LR version : 4 */
154 __be32 h_len
; /* len in bytes; should be 64-bit aligned: 4 */
155 __be64 h_lsn
; /* lsn of this LR : 8 */
156 __be64 h_tail_lsn
; /* lsn of 1st LR w/ buffers not committed: 8 */
157 __le32 h_crc
; /* crc of log record : 4 */
158 __be32 h_prev_block
; /* block number to previous LR : 4 */
159 __be32 h_num_logops
; /* number of log operations in this LR : 4 */
160 __be32 h_cycle_data
[XLOG_HEADER_CYCLE_SIZE
/ BBSIZE
];
162 __be32 h_fmt
; /* format of log record : 4 */
163 uuid_t h_fs_uuid
; /* uuid of FS : 16 */
164 __be32 h_size
; /* iclog size : 4 */
167 typedef struct xlog_rec_ext_header
{
168 __be32 xh_cycle
; /* write cycle of log : 4 */
169 __be32 xh_cycle_data
[XLOG_HEADER_CYCLE_SIZE
/ BBSIZE
]; /* : 256 */
170 } xlog_rec_ext_header_t
;
173 * Quite misnamed, because this union lays out the actual on-disk log buffer.
175 typedef union xlog_in_core2
{
176 xlog_rec_header_t hic_header
;
177 xlog_rec_ext_header_t hic_xheader
;
178 char hic_sector
[XLOG_HEADER_SIZE
];
181 /* not an on-disk structure, but needed by log recovery in userspace */
182 typedef struct xfs_log_iovec
{
183 void *i_addr
; /* beginning address of region */
184 int i_len
; /* length in bytes of region */
185 uint i_type
; /* type of region */
190 * Transaction Header definitions.
192 * This is the structure written in the log at the head of every transaction. It
193 * identifies the type and id of the transaction, and contains the number of
194 * items logged by the transaction so we know how many to expect during
197 * Do not change the below structure without redoing the code in
198 * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans().
200 typedef struct xfs_trans_header
{
201 uint th_magic
; /* magic number */
202 uint th_type
; /* transaction type */
203 __int32_t th_tid
; /* transaction id (unused) */
204 uint th_num_items
; /* num items logged by trans */
205 } xfs_trans_header_t
;
207 #define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */
212 #define XFS_LI_EFI 0x1236
213 #define XFS_LI_EFD 0x1237
214 #define XFS_LI_IUNLINK 0x1238
215 #define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */
216 #define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */
217 #define XFS_LI_DQUOT 0x123d
218 #define XFS_LI_QUOTAOFF 0x123e
219 #define XFS_LI_ICREATE 0x123f
221 #define XFS_LI_TYPE_DESC \
222 { XFS_LI_EFI, "XFS_LI_EFI" }, \
223 { XFS_LI_EFD, "XFS_LI_EFD" }, \
224 { XFS_LI_IUNLINK, "XFS_LI_IUNLINK" }, \
225 { XFS_LI_INODE, "XFS_LI_INODE" }, \
226 { XFS_LI_BUF, "XFS_LI_BUF" }, \
227 { XFS_LI_DQUOT, "XFS_LI_DQUOT" }, \
228 { XFS_LI_QUOTAOFF, "XFS_LI_QUOTAOFF" }, \
229 { XFS_LI_ICREATE, "XFS_LI_ICREATE" }
232 * Transaction types. Used to distinguish types of buffers.
234 #define XFS_TRANS_SETATTR_NOT_SIZE 1
235 #define XFS_TRANS_SETATTR_SIZE 2
236 #define XFS_TRANS_INACTIVE 3
237 #define XFS_TRANS_CREATE 4
238 #define XFS_TRANS_CREATE_TRUNC 5
239 #define XFS_TRANS_TRUNCATE_FILE 6
240 #define XFS_TRANS_REMOVE 7
241 #define XFS_TRANS_LINK 8
242 #define XFS_TRANS_RENAME 9
243 #define XFS_TRANS_MKDIR 10
244 #define XFS_TRANS_RMDIR 11
245 #define XFS_TRANS_SYMLINK 12
246 #define XFS_TRANS_SET_DMATTRS 13
247 #define XFS_TRANS_GROWFS 14
248 #define XFS_TRANS_STRAT_WRITE 15
249 #define XFS_TRANS_DIOSTRAT 16
250 /* 17 was XFS_TRANS_WRITE_SYNC */
251 #define XFS_TRANS_WRITEID 18
252 #define XFS_TRANS_ADDAFORK 19
253 #define XFS_TRANS_ATTRINVAL 20
254 #define XFS_TRANS_ATRUNCATE 21
255 #define XFS_TRANS_ATTR_SET 22
256 #define XFS_TRANS_ATTR_RM 23
257 #define XFS_TRANS_ATTR_FLAG 24
258 #define XFS_TRANS_CLEAR_AGI_BUCKET 25
259 #define XFS_TRANS_QM_SBCHANGE 26
261 * Dummy entries since we use the transaction type to index into the
262 * trans_type[] in xlog_recover_print_trans_head()
264 #define XFS_TRANS_DUMMY1 27
265 #define XFS_TRANS_DUMMY2 28
266 #define XFS_TRANS_QM_QUOTAOFF 29
267 #define XFS_TRANS_QM_DQALLOC 30
268 #define XFS_TRANS_QM_SETQLIM 31
269 #define XFS_TRANS_QM_DQCLUSTER 32
270 #define XFS_TRANS_QM_QINOCREATE 33
271 #define XFS_TRANS_QM_QUOTAOFF_END 34
272 #define XFS_TRANS_SB_UNIT 35
273 #define XFS_TRANS_FSYNC_TS 36
274 #define XFS_TRANS_GROWFSRT_ALLOC 37
275 #define XFS_TRANS_GROWFSRT_ZERO 38
276 #define XFS_TRANS_GROWFSRT_FREE 39
277 #define XFS_TRANS_SWAPEXT 40
278 #define XFS_TRANS_SB_COUNT 41
279 #define XFS_TRANS_CHECKPOINT 42
280 #define XFS_TRANS_ICREATE 43
281 #define XFS_TRANS_TYPE_MAX 43
282 /* new transaction types need to be reflected in xfs_logprint(8) */
284 #define XFS_TRANS_TYPES \
285 { XFS_TRANS_SETATTR_NOT_SIZE, "SETATTR_NOT_SIZE" }, \
286 { XFS_TRANS_SETATTR_SIZE, "SETATTR_SIZE" }, \
287 { XFS_TRANS_INACTIVE, "INACTIVE" }, \
288 { XFS_TRANS_CREATE, "CREATE" }, \
289 { XFS_TRANS_CREATE_TRUNC, "CREATE_TRUNC" }, \
290 { XFS_TRANS_TRUNCATE_FILE, "TRUNCATE_FILE" }, \
291 { XFS_TRANS_REMOVE, "REMOVE" }, \
292 { XFS_TRANS_LINK, "LINK" }, \
293 { XFS_TRANS_RENAME, "RENAME" }, \
294 { XFS_TRANS_MKDIR, "MKDIR" }, \
295 { XFS_TRANS_RMDIR, "RMDIR" }, \
296 { XFS_TRANS_SYMLINK, "SYMLINK" }, \
297 { XFS_TRANS_SET_DMATTRS, "SET_DMATTRS" }, \
298 { XFS_TRANS_GROWFS, "GROWFS" }, \
299 { XFS_TRANS_STRAT_WRITE, "STRAT_WRITE" }, \
300 { XFS_TRANS_DIOSTRAT, "DIOSTRAT" }, \
301 { XFS_TRANS_WRITEID, "WRITEID" }, \
302 { XFS_TRANS_ADDAFORK, "ADDAFORK" }, \
303 { XFS_TRANS_ATTRINVAL, "ATTRINVAL" }, \
304 { XFS_TRANS_ATRUNCATE, "ATRUNCATE" }, \
305 { XFS_TRANS_ATTR_SET, "ATTR_SET" }, \
306 { XFS_TRANS_ATTR_RM, "ATTR_RM" }, \
307 { XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \
308 { XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \
309 { XFS_TRANS_QM_SBCHANGE, "QM_SBCHANGE" }, \
310 { XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \
311 { XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \
312 { XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \
313 { XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \
314 { XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \
315 { XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \
316 { XFS_TRANS_SB_UNIT, "SB_UNIT" }, \
317 { XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \
318 { XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \
319 { XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \
320 { XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \
321 { XFS_TRANS_SWAPEXT, "SWAPEXT" }, \
322 { XFS_TRANS_SB_COUNT, "SB_COUNT" }, \
323 { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \
324 { XFS_TRANS_DUMMY1, "DUMMY1" }, \
325 { XFS_TRANS_DUMMY2, "DUMMY2" }, \
326 { XLOG_UNMOUNT_REC_TYPE, "UNMOUNT" }
329 * This structure is used to track log items associated with
330 * a transaction. It points to the log item and keeps some
331 * flags to track the state of the log item. It also tracks
332 * the amount of space needed to log the item it describes
333 * once we get to commit processing (see xfs_trans_commit()).
335 struct xfs_log_item_desc
{
336 struct xfs_log_item
*lid_item
;
337 struct list_head lid_trans
;
338 unsigned char lid_flags
;
341 #define XFS_LID_DIRTY 0x1
344 * Values for t_flags.
346 #define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */
347 #define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */
348 #define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */
349 #define XFS_TRANS_SYNC 0x08 /* make commit synchronous */
350 #define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */
351 #define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */
352 #define XFS_TRANS_FREEZE_PROT 0x40 /* Transaction has elevated writer
353 count in superblock */
356 * Values for call flags parameter.
358 #define XFS_TRANS_RELEASE_LOG_RES 0x4
359 #define XFS_TRANS_ABORT 0x8
362 * Field values for xfs_trans_mod_sb.
364 #define XFS_TRANS_SB_ICOUNT 0x00000001
365 #define XFS_TRANS_SB_IFREE 0x00000002
366 #define XFS_TRANS_SB_FDBLOCKS 0x00000004
367 #define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008
368 #define XFS_TRANS_SB_FREXTENTS 0x00000010
369 #define XFS_TRANS_SB_RES_FREXTENTS 0x00000020
370 #define XFS_TRANS_SB_DBLOCKS 0x00000040
371 #define XFS_TRANS_SB_AGCOUNT 0x00000080
372 #define XFS_TRANS_SB_IMAXPCT 0x00000100
373 #define XFS_TRANS_SB_REXTSIZE 0x00000200
374 #define XFS_TRANS_SB_RBMBLOCKS 0x00000400
375 #define XFS_TRANS_SB_RBLOCKS 0x00000800
376 #define XFS_TRANS_SB_REXTENTS 0x00001000
377 #define XFS_TRANS_SB_REXTSLOG 0x00002000
380 * Here we centralize the specification of XFS meta-data buffer
381 * reference count values. This determine how hard the buffer
382 * cache tries to hold onto the buffer.
384 #define XFS_AGF_REF 4
385 #define XFS_AGI_REF 4
386 #define XFS_AGFL_REF 3
387 #define XFS_INO_BTREE_REF 3
388 #define XFS_ALLOC_BTREE_REF 2
389 #define XFS_BMAP_BTREE_REF 2
390 #define XFS_DIR_BTREE_REF 2
391 #define XFS_INO_REF 2
392 #define XFS_ATTR_BTREE_REF 1
393 #define XFS_DQUOT_REF 1
396 * Flags for xfs_trans_ichgtime().
398 #define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
399 #define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
400 #define XFS_ICHGTIME_CREATE 0x4 /* inode create timestamp */
404 * Inode Log Item Format definitions.
406 * This is the structure used to lay out an inode log item in the
407 * log. The size of the inline data/extents/b-tree root to be logged
408 * (if any) is indicated in the ilf_dsize field. Changes to this structure
409 * must be added on to the end.
411 typedef struct xfs_inode_log_format
{
412 __uint16_t ilf_type
; /* inode log item type */
413 __uint16_t ilf_size
; /* size of this item */
414 __uint32_t ilf_fields
; /* flags for fields logged */
415 __uint16_t ilf_asize
; /* size of attr d/ext/root */
416 __uint16_t ilf_dsize
; /* size of data/ext/root */
417 __uint64_t ilf_ino
; /* inode number */
419 __uint32_t ilfu_rdev
; /* rdev value for dev inode*/
420 uuid_t ilfu_uuid
; /* mount point value */
422 __int64_t ilf_blkno
; /* blkno of inode buffer */
423 __int32_t ilf_len
; /* len of inode buffer */
424 __int32_t ilf_boffset
; /* off of inode in buffer */
425 } xfs_inode_log_format_t
;
427 typedef struct xfs_inode_log_format_32
{
428 __uint16_t ilf_type
; /* inode log item type */
429 __uint16_t ilf_size
; /* size of this item */
430 __uint32_t ilf_fields
; /* flags for fields logged */
431 __uint16_t ilf_asize
; /* size of attr d/ext/root */
432 __uint16_t ilf_dsize
; /* size of data/ext/root */
433 __uint64_t ilf_ino
; /* inode number */
435 __uint32_t ilfu_rdev
; /* rdev value for dev inode*/
436 uuid_t ilfu_uuid
; /* mount point value */
438 __int64_t ilf_blkno
; /* blkno of inode buffer */
439 __int32_t ilf_len
; /* len of inode buffer */
440 __int32_t ilf_boffset
; /* off of inode in buffer */
441 } __attribute__((packed
)) xfs_inode_log_format_32_t
;
443 typedef struct xfs_inode_log_format_64
{
444 __uint16_t ilf_type
; /* inode log item type */
445 __uint16_t ilf_size
; /* size of this item */
446 __uint32_t ilf_fields
; /* flags for fields logged */
447 __uint16_t ilf_asize
; /* size of attr d/ext/root */
448 __uint16_t ilf_dsize
; /* size of data/ext/root */
449 __uint32_t ilf_pad
; /* pad for 64 bit boundary */
450 __uint64_t ilf_ino
; /* inode number */
452 __uint32_t ilfu_rdev
; /* rdev value for dev inode*/
453 uuid_t ilfu_uuid
; /* mount point value */
455 __int64_t ilf_blkno
; /* blkno of inode buffer */
456 __int32_t ilf_len
; /* len of inode buffer */
457 __int32_t ilf_boffset
; /* off of inode in buffer */
458 } xfs_inode_log_format_64_t
;
461 * Flags for xfs_trans_log_inode flags field.
463 #define XFS_ILOG_CORE 0x001 /* log standard inode fields */
464 #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */
465 #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */
466 #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */
467 #define XFS_ILOG_DEV 0x010 /* log the dev field */
468 #define XFS_ILOG_UUID 0x020 /* log the uuid field */
469 #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */
470 #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */
471 #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */
475 * The timestamps are dirty, but not necessarily anything else in the inode
476 * core. Unlike the other fields above this one must never make it to disk
477 * in the ilf_fields of the inode_log_format, but is purely store in-memory in
478 * ili_fields in the inode_log_item.
480 #define XFS_ILOG_TIMESTAMP 0x4000
482 #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
483 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \
484 XFS_ILOG_UUID | XFS_ILOG_ADATA | \
485 XFS_ILOG_AEXT | XFS_ILOG_ABROOT)
487 #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
490 #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
493 #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \
494 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \
495 XFS_ILOG_DEV | XFS_ILOG_UUID | \
496 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
497 XFS_ILOG_ABROOT | XFS_ILOG_TIMESTAMP)
499 static inline int xfs_ilog_fbroot(int w
)
501 return (w
== XFS_DATA_FORK
? XFS_ILOG_DBROOT
: XFS_ILOG_ABROOT
);
504 static inline int xfs_ilog_fext(int w
)
506 return (w
== XFS_DATA_FORK
? XFS_ILOG_DEXT
: XFS_ILOG_AEXT
);
509 static inline int xfs_ilog_fdata(int w
)
511 return (w
== XFS_DATA_FORK
? XFS_ILOG_DDATA
: XFS_ILOG_ADATA
);
515 * Incore version of the on-disk inode core structures. We log this directly
516 * into the journal in host CPU format (for better or worse) and as such
517 * directly mirrors the xfs_dinode structure as it must contain all the same
520 typedef struct xfs_ictimestamp
{
521 __int32_t t_sec
; /* timestamp seconds */
522 __int32_t t_nsec
; /* timestamp nanoseconds */
526 * NOTE: This structure must be kept identical to struct xfs_dinode
527 * in xfs_dinode.h except for the endianness annotations.
529 typedef struct xfs_icdinode
{
530 __uint16_t di_magic
; /* inode magic # = XFS_DINODE_MAGIC */
531 __uint16_t di_mode
; /* mode and type of file */
532 __int8_t di_version
; /* inode version */
533 __int8_t di_format
; /* format of di_c data */
534 __uint16_t di_onlink
; /* old number of links to file */
535 __uint32_t di_uid
; /* owner's user id */
536 __uint32_t di_gid
; /* owner's group id */
537 __uint32_t di_nlink
; /* number of links to file */
538 __uint16_t di_projid_lo
; /* lower part of owner's project id */
539 __uint16_t di_projid_hi
; /* higher part of owner's project id */
540 __uint8_t di_pad
[6]; /* unused, zeroed space */
541 __uint16_t di_flushiter
; /* incremented on flush */
542 xfs_ictimestamp_t di_atime
; /* time last accessed */
543 xfs_ictimestamp_t di_mtime
; /* time last modified */
544 xfs_ictimestamp_t di_ctime
; /* time created/inode modified */
545 xfs_fsize_t di_size
; /* number of bytes in file */
546 xfs_drfsbno_t di_nblocks
; /* # of direct & btree blocks used */
547 xfs_extlen_t di_extsize
; /* basic/minimum extent size for file */
548 xfs_extnum_t di_nextents
; /* number of extents in data fork */
549 xfs_aextnum_t di_anextents
; /* number of extents in attribute fork*/
550 __uint8_t di_forkoff
; /* attr fork offs, <<3 for 64b align */
551 __int8_t di_aformat
; /* format of attr fork's data */
552 __uint32_t di_dmevmask
; /* DMIG event mask */
553 __uint16_t di_dmstate
; /* DMIG state info */
554 __uint16_t di_flags
; /* random flags, XFS_DIFLAG_... */
555 __uint32_t di_gen
; /* generation number */
557 /* di_next_unlinked is the only non-core field in the old dinode */
558 xfs_agino_t di_next_unlinked
;/* agi unlinked list ptr */
560 /* start of the extended dinode, writable fields */
561 __uint32_t di_crc
; /* CRC of the inode */
562 __uint64_t di_changecount
; /* number of attribute changes */
563 xfs_lsn_t di_lsn
; /* flush sequence */
564 __uint64_t di_flags2
; /* more random flags */
565 __uint8_t di_pad2
[16]; /* more padding for future expansion */
567 /* fields only written to during inode creation */
568 xfs_ictimestamp_t di_crtime
; /* time created */
569 xfs_ino_t di_ino
; /* inode number */
570 uuid_t di_uuid
; /* UUID of the filesystem */
572 /* structure must be padded to 64 bit alignment */
575 static inline uint
xfs_icdinode_size(int version
)
578 return sizeof(struct xfs_icdinode
);
579 return offsetof(struct xfs_icdinode
, di_next_unlinked
);
583 * Buffer Log Format defintions
585 * These are the physical dirty bitmap defintions for the log format structure.
587 #define XFS_BLF_CHUNK 128
588 #define XFS_BLF_SHIFT 7
589 #define BIT_TO_WORD_SHIFT 5
590 #define NBWORD (NBBY * sizeof(unsigned int))
593 * This flag indicates that the buffer contains on disk inodes
594 * and requires special recovery handling.
596 #define XFS_BLF_INODE_BUF (1<<0)
599 * This flag indicates that the buffer should not be replayed
600 * during recovery because its blocks are being freed.
602 #define XFS_BLF_CANCEL (1<<1)
605 * This flag indicates that the buffer contains on disk
606 * user or group dquots and may require special recovery handling.
608 #define XFS_BLF_UDQUOT_BUF (1<<2)
609 #define XFS_BLF_PDQUOT_BUF (1<<3)
610 #define XFS_BLF_GDQUOT_BUF (1<<4)
613 * This is the structure used to lay out a buf log item in the
614 * log. The data map describes which 128 byte chunks of the buffer
617 #define XFS_BLF_DATAMAP_SIZE ((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / NBWORD)
619 typedef struct xfs_buf_log_format
{
620 unsigned short blf_type
; /* buf log item type indicator */
621 unsigned short blf_size
; /* size of this item */
622 ushort blf_flags
; /* misc state */
623 ushort blf_len
; /* number of blocks in this buf */
624 __int64_t blf_blkno
; /* starting blkno of this buf */
625 unsigned int blf_map_size
; /* used size of data bitmap in words */
626 unsigned int blf_data_map
[XFS_BLF_DATAMAP_SIZE
]; /* dirty bitmap */
627 } xfs_buf_log_format_t
;
630 * All buffers now need to tell recovery where the magic number
631 * is so that it can verify and calculate the CRCs on the buffer correctly
632 * once the changes have been replayed into the buffer.
634 * The type value is held in the upper 5 bits of the blf_flags field, which is
635 * an unsigned 16 bit field. Hence we need to shift it 11 bits up and down.
637 #define XFS_BLFT_BITS 5
638 #define XFS_BLFT_SHIFT 11
639 #define XFS_BLFT_MASK (((1 << XFS_BLFT_BITS) - 1) << XFS_BLFT_SHIFT)
642 XFS_BLFT_UNKNOWN_BUF
= 0,
651 XFS_BLFT_SYMLINK_BUF
,
652 XFS_BLFT_DIR_BLOCK_BUF
,
653 XFS_BLFT_DIR_DATA_BUF
,
654 XFS_BLFT_DIR_FREE_BUF
,
655 XFS_BLFT_DIR_LEAF1_BUF
,
656 XFS_BLFT_DIR_LEAFN_BUF
,
657 XFS_BLFT_DA_NODE_BUF
,
658 XFS_BLFT_ATTR_LEAF_BUF
,
659 XFS_BLFT_ATTR_RMT_BUF
,
661 XFS_BLFT_MAX_BUF
= (1 << XFS_BLFT_BITS
),
665 xfs_blft_to_flags(struct xfs_buf_log_format
*blf
, enum xfs_blft type
)
667 ASSERT(type
> XFS_BLFT_UNKNOWN_BUF
&& type
< XFS_BLFT_MAX_BUF
);
668 blf
->blf_flags
&= ~XFS_BLFT_MASK
;
669 blf
->blf_flags
|= ((type
<< XFS_BLFT_SHIFT
) & XFS_BLFT_MASK
);
672 static inline __uint16_t
673 xfs_blft_from_flags(struct xfs_buf_log_format
*blf
)
675 return (blf
->blf_flags
& XFS_BLFT_MASK
) >> XFS_BLFT_SHIFT
;
679 * EFI/EFD log format definitions
681 typedef struct xfs_extent
{
682 xfs_dfsbno_t ext_start
;
683 xfs_extlen_t ext_len
;
687 * Since an xfs_extent_t has types (start:64, len: 32)
688 * there are different alignments on 32 bit and 64 bit kernels.
689 * So we provide the different variants for use by a
690 * conversion routine.
692 typedef struct xfs_extent_32
{
693 __uint64_t ext_start
;
695 } __attribute__((packed
)) xfs_extent_32_t
;
697 typedef struct xfs_extent_64
{
698 __uint64_t ext_start
;
704 * This is the structure used to lay out an efi log item in the
705 * log. The efi_extents field is a variable size array whose
706 * size is given by efi_nextents.
708 typedef struct xfs_efi_log_format
{
709 __uint16_t efi_type
; /* efi log item type */
710 __uint16_t efi_size
; /* size of this item */
711 __uint32_t efi_nextents
; /* # extents to free */
712 __uint64_t efi_id
; /* efi identifier */
713 xfs_extent_t efi_extents
[1]; /* array of extents to free */
714 } xfs_efi_log_format_t
;
716 typedef struct xfs_efi_log_format_32
{
717 __uint16_t efi_type
; /* efi log item type */
718 __uint16_t efi_size
; /* size of this item */
719 __uint32_t efi_nextents
; /* # extents to free */
720 __uint64_t efi_id
; /* efi identifier */
721 xfs_extent_32_t efi_extents
[1]; /* array of extents to free */
722 } __attribute__((packed
)) xfs_efi_log_format_32_t
;
724 typedef struct xfs_efi_log_format_64
{
725 __uint16_t efi_type
; /* efi log item type */
726 __uint16_t efi_size
; /* size of this item */
727 __uint32_t efi_nextents
; /* # extents to free */
728 __uint64_t efi_id
; /* efi identifier */
729 xfs_extent_64_t efi_extents
[1]; /* array of extents to free */
730 } xfs_efi_log_format_64_t
;
733 * This is the structure used to lay out an efd log item in the
734 * log. The efd_extents array is a variable size array whose
735 * size is given by efd_nextents;
737 typedef struct xfs_efd_log_format
{
738 __uint16_t efd_type
; /* efd log item type */
739 __uint16_t efd_size
; /* size of this item */
740 __uint32_t efd_nextents
; /* # of extents freed */
741 __uint64_t efd_efi_id
; /* id of corresponding efi */
742 xfs_extent_t efd_extents
[1]; /* array of extents freed */
743 } xfs_efd_log_format_t
;
745 typedef struct xfs_efd_log_format_32
{
746 __uint16_t efd_type
; /* efd log item type */
747 __uint16_t efd_size
; /* size of this item */
748 __uint32_t efd_nextents
; /* # of extents freed */
749 __uint64_t efd_efi_id
; /* id of corresponding efi */
750 xfs_extent_32_t efd_extents
[1]; /* array of extents freed */
751 } __attribute__((packed
)) xfs_efd_log_format_32_t
;
753 typedef struct xfs_efd_log_format_64
{
754 __uint16_t efd_type
; /* efd log item type */
755 __uint16_t efd_size
; /* size of this item */
756 __uint32_t efd_nextents
; /* # of extents freed */
757 __uint64_t efd_efi_id
; /* id of corresponding efi */
758 xfs_extent_64_t efd_extents
[1]; /* array of extents freed */
759 } xfs_efd_log_format_64_t
;
762 * Dquot Log format definitions.
764 * The first two fields must be the type and size fitting into
765 * 32 bits : log_recovery code assumes that.
767 typedef struct xfs_dq_logformat
{
768 __uint16_t qlf_type
; /* dquot log item type */
769 __uint16_t qlf_size
; /* size of this item */
770 xfs_dqid_t qlf_id
; /* usr/grp/proj id : 32 bits */
771 __int64_t qlf_blkno
; /* blkno of dquot buffer */
772 __int32_t qlf_len
; /* len of dquot buffer */
773 __uint32_t qlf_boffset
; /* off of dquot in buffer */
774 } xfs_dq_logformat_t
;
777 * log format struct for QUOTAOFF records.
778 * The first two fields must be the type and size fitting into
779 * 32 bits : log_recovery code assumes that.
780 * We write two LI_QUOTAOFF logitems per quotaoff, the last one keeps a pointer
781 * to the first and ensures that the first logitem is taken out of the AIL
782 * only when the last one is securely committed.
784 typedef struct xfs_qoff_logformat
{
785 unsigned short qf_type
; /* quotaoff log item type */
786 unsigned short qf_size
; /* size of this item */
787 unsigned int qf_flags
; /* USR and/or GRP */
788 char qf_pad
[12]; /* padding for future */
789 } xfs_qoff_logformat_t
;
793 * Disk quotas status in m_qflags, and also sb_qflags. 16 bits.
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 */
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()
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 */
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)
820 * Inode create log item structure
822 * Log recovery assumes the first two entries are the type and size and they fit
823 * in 32 bits. Also in host order (ugh) so they have to be 32 bit aligned so
824 * decoding can be done correctly.
826 struct xfs_icreate_log
{
827 __uint16_t icl_type
; /* type of log format structure */
828 __uint16_t icl_size
; /* size of log format structure */
829 __be32 icl_ag
; /* ag being allocated in */
830 __be32 icl_agbno
; /* start block of inode range */
831 __be32 icl_count
; /* number of inodes to initialise */
832 __be32 icl_isize
; /* size of inodes */
833 __be32 icl_length
; /* length of extent to initialise */
834 __be32 icl_gen
; /* inode generation number to use */
837 #endif /* __XFS_LOG_FORMAT_H__ */