1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. 4 * All Rights Reserved. 5 */ 6 #ifndef __XFS_LOG_FORMAT_H__ 7 #define __XFS_LOG_FORMAT_H__ 8 9 struct xfs_mount; 10 struct xfs_trans_res; 11 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 */ 22 typedef uint32_t xlog_tid_t; 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 38 #define XLOG_HEADER_SIZE 512 39 40 /* Minimum number of transactions that must fit in the log (defined by mkfs) */ 41 #define XFS_MIN_LOG_FACTOR 3 42 43 #define XLOG_REC_SHIFT(log) \ 44 BTOBB(1 << (xfs_has_logv2(log->l_mp) ? \ 45 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT)) 46 #define XLOG_TOTAL_REC_SHIFT(log) \ 47 BTOBB(XLOG_MAX_ICLOGS << (xfs_has_logv2(log->l_mp) ? \ 48 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT)) 49 50 /* get lsn fields */ 51 #define CYCLE_LSN(lsn) ((uint)((lsn)>>32)) 52 #define BLOCK_LSN(lsn) ((uint)(lsn)) 53 54 /* this is used in a spot where we might otherwise double-endian-flip */ 55 #define CYCLE_LSN_DISK(lsn) (((__be32 *)&(lsn))[0]) 56 57 static inline xfs_lsn_t xlog_assign_lsn(uint cycle, uint block) 58 { 59 return ((xfs_lsn_t)cycle << 32) | block; 60 } 61 62 static inline uint xlog_get_cycle(char *ptr) 63 { 64 if (be32_to_cpu(*(__be32 *)ptr) == XLOG_HEADER_MAGIC_NUM) 65 return be32_to_cpu(*((__be32 *)ptr + 1)); 66 else 67 return be32_to_cpu(*(__be32 *)ptr); 68 } 69 70 /* Log Clients */ 71 #define XFS_TRANSACTION 0x69 72 #define XFS_LOG 0xaa 73 74 #define XLOG_UNMOUNT_TYPE 0x556e /* Un for Unmount */ 75 76 /* 77 * Log item for unmount records. 78 * 79 * The unmount record used to have a string "Unmount filesystem--" in the 80 * data section where the "Un" was really a magic number (XLOG_UNMOUNT_TYPE). 81 * We just write the magic number now; see xfs_log_unmount_write. 82 */ 83 struct xfs_unmount_log_format { 84 uint16_t magic; /* XLOG_UNMOUNT_TYPE */ 85 uint16_t pad1; 86 uint32_t pad2; /* may as well make it 64 bits */ 87 }; 88 89 /* Region types for iovec's i_type */ 90 #define XLOG_REG_TYPE_BFORMAT 1 91 #define XLOG_REG_TYPE_BCHUNK 2 92 #define XLOG_REG_TYPE_EFI_FORMAT 3 93 #define XLOG_REG_TYPE_EFD_FORMAT 4 94 #define XLOG_REG_TYPE_IFORMAT 5 95 #define XLOG_REG_TYPE_ICORE 6 96 #define XLOG_REG_TYPE_IEXT 7 97 #define XLOG_REG_TYPE_IBROOT 8 98 #define XLOG_REG_TYPE_ILOCAL 9 99 #define XLOG_REG_TYPE_IATTR_EXT 10 100 #define XLOG_REG_TYPE_IATTR_BROOT 11 101 #define XLOG_REG_TYPE_IATTR_LOCAL 12 102 #define XLOG_REG_TYPE_QFORMAT 13 103 #define XLOG_REG_TYPE_DQUOT 14 104 #define XLOG_REG_TYPE_QUOTAOFF 15 105 #define XLOG_REG_TYPE_LRHEADER 16 106 #define XLOG_REG_TYPE_UNMOUNT 17 107 #define XLOG_REG_TYPE_COMMIT 18 108 #define XLOG_REG_TYPE_TRANSHDR 19 109 #define XLOG_REG_TYPE_ICREATE 20 110 #define XLOG_REG_TYPE_RUI_FORMAT 21 111 #define XLOG_REG_TYPE_RUD_FORMAT 22 112 #define XLOG_REG_TYPE_CUI_FORMAT 23 113 #define XLOG_REG_TYPE_CUD_FORMAT 24 114 #define XLOG_REG_TYPE_BUI_FORMAT 25 115 #define XLOG_REG_TYPE_BUD_FORMAT 26 116 #define XLOG_REG_TYPE_ATTRI_FORMAT 27 117 #define XLOG_REG_TYPE_ATTRD_FORMAT 28 118 #define XLOG_REG_TYPE_ATTR_NAME 29 119 #define XLOG_REG_TYPE_ATTR_VALUE 30 120 #define XLOG_REG_TYPE_XMI_FORMAT 31 121 #define XLOG_REG_TYPE_XMD_FORMAT 32 122 #define XLOG_REG_TYPE_MAX 32 123 124 /* 125 * Flags to log operation header 126 * 127 * The first write of a new transaction will be preceded with a start 128 * record, XLOG_START_TRANS. Once a transaction is committed, a commit 129 * record is written, XLOG_COMMIT_TRANS. If a single region can not fit into 130 * the remainder of the current active in-core log, it is split up into 131 * multiple regions. Each partial region will be marked with a 132 * XLOG_CONTINUE_TRANS until the last one, which gets marked with XLOG_END_TRANS. 133 * 134 */ 135 #define XLOG_START_TRANS 0x01 /* Start a new transaction */ 136 #define XLOG_COMMIT_TRANS 0x02 /* Commit this transaction */ 137 #define XLOG_CONTINUE_TRANS 0x04 /* Cont this trans into new region */ 138 #define XLOG_WAS_CONT_TRANS 0x08 /* Cont this trans into new region */ 139 #define XLOG_END_TRANS 0x10 /* End a continued transaction */ 140 #define XLOG_UNMOUNT_TRANS 0x20 /* Unmount a filesystem transaction */ 141 142 143 typedef struct xlog_op_header { 144 __be32 oh_tid; /* transaction id of operation : 4 b */ 145 __be32 oh_len; /* bytes in data region : 4 b */ 146 __u8 oh_clientid; /* who sent me this : 1 b */ 147 __u8 oh_flags; /* : 1 b */ 148 __u16 oh_res2; /* 32 bit align : 2 b */ 149 } xlog_op_header_t; 150 151 /* valid values for h_fmt */ 152 #define XLOG_FMT_UNKNOWN 0 153 #define XLOG_FMT_LINUX_LE 1 154 #define XLOG_FMT_LINUX_BE 2 155 #define XLOG_FMT_IRIX_BE 3 156 157 /* our fmt */ 158 #ifdef XFS_NATIVE_HOST 159 #define XLOG_FMT XLOG_FMT_LINUX_BE 160 #else 161 #define XLOG_FMT XLOG_FMT_LINUX_LE 162 #endif 163 164 typedef struct xlog_rec_header { 165 __be32 h_magicno; /* log record (LR) identifier : 4 */ 166 __be32 h_cycle; /* write cycle of log : 4 */ 167 __be32 h_version; /* LR version : 4 */ 168 __be32 h_len; /* len in bytes; should be 64-bit aligned: 4 */ 169 __be64 h_lsn; /* lsn of this LR : 8 */ 170 __be64 h_tail_lsn; /* lsn of 1st LR w/ buffers not committed: 8 */ 171 __le32 h_crc; /* crc of log record : 4 */ 172 __be32 h_prev_block; /* block number to previous LR : 4 */ 173 __be32 h_num_logops; /* number of log operations in this LR : 4 */ 174 __be32 h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; 175 /* new fields */ 176 __be32 h_fmt; /* format of log record : 4 */ 177 uuid_t h_fs_uuid; /* uuid of FS : 16 */ 178 __be32 h_size; /* iclog size : 4 */ 179 } xlog_rec_header_t; 180 181 typedef struct xlog_rec_ext_header { 182 __be32 xh_cycle; /* write cycle of log : 4 */ 183 __be32 xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /* : 256 */ 184 } xlog_rec_ext_header_t; 185 186 /* 187 * Quite misnamed, because this union lays out the actual on-disk log buffer. 188 */ 189 typedef union xlog_in_core2 { 190 xlog_rec_header_t hic_header; 191 xlog_rec_ext_header_t hic_xheader; 192 char hic_sector[XLOG_HEADER_SIZE]; 193 } xlog_in_core_2_t; 194 195 /* not an on-disk structure, but needed by log recovery in userspace */ 196 typedef struct xfs_log_iovec { 197 void *i_addr; /* beginning address of region */ 198 int i_len; /* length in bytes of region */ 199 uint i_type; /* type of region */ 200 } xfs_log_iovec_t; 201 202 203 /* 204 * Transaction Header definitions. 205 * 206 * This is the structure written in the log at the head of every transaction. It 207 * identifies the type and id of the transaction, and contains the number of 208 * items logged by the transaction so we know how many to expect during 209 * recovery. 210 * 211 * Do not change the below structure without redoing the code in 212 * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans(). 213 */ 214 typedef struct xfs_trans_header { 215 uint th_magic; /* magic number */ 216 uint th_type; /* transaction type */ 217 int32_t th_tid; /* transaction id (unused) */ 218 uint th_num_items; /* num items logged by trans */ 219 } xfs_trans_header_t; 220 221 #define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */ 222 223 /* 224 * The only type valid for th_type in CIL-enabled file system logs: 225 */ 226 #define XFS_TRANS_CHECKPOINT 40 227 228 /* 229 * Log item types. 230 */ 231 #define XFS_LI_EFI 0x1236 232 #define XFS_LI_EFD 0x1237 233 #define XFS_LI_IUNLINK 0x1238 234 #define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */ 235 #define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */ 236 #define XFS_LI_DQUOT 0x123d 237 #define XFS_LI_QUOTAOFF 0x123e 238 #define XFS_LI_ICREATE 0x123f 239 #define XFS_LI_RUI 0x1240 /* rmap update intent */ 240 #define XFS_LI_RUD 0x1241 241 #define XFS_LI_CUI 0x1242 /* refcount update intent */ 242 #define XFS_LI_CUD 0x1243 243 #define XFS_LI_BUI 0x1244 /* bmbt update intent */ 244 #define XFS_LI_BUD 0x1245 245 #define XFS_LI_ATTRI 0x1246 /* attr set/remove intent*/ 246 #define XFS_LI_ATTRD 0x1247 /* attr set/remove done */ 247 #define XFS_LI_XMI 0x1248 /* mapping exchange intent */ 248 #define XFS_LI_XMD 0x1249 /* mapping exchange done */ 249 250 #define XFS_LI_TYPE_DESC \ 251 { XFS_LI_EFI, "XFS_LI_EFI" }, \ 252 { XFS_LI_EFD, "XFS_LI_EFD" }, \ 253 { XFS_LI_IUNLINK, "XFS_LI_IUNLINK" }, \ 254 { XFS_LI_INODE, "XFS_LI_INODE" }, \ 255 { XFS_LI_BUF, "XFS_LI_BUF" }, \ 256 { XFS_LI_DQUOT, "XFS_LI_DQUOT" }, \ 257 { XFS_LI_QUOTAOFF, "XFS_LI_QUOTAOFF" }, \ 258 { XFS_LI_ICREATE, "XFS_LI_ICREATE" }, \ 259 { XFS_LI_RUI, "XFS_LI_RUI" }, \ 260 { XFS_LI_RUD, "XFS_LI_RUD" }, \ 261 { XFS_LI_CUI, "XFS_LI_CUI" }, \ 262 { XFS_LI_CUD, "XFS_LI_CUD" }, \ 263 { XFS_LI_BUI, "XFS_LI_BUI" }, \ 264 { XFS_LI_BUD, "XFS_LI_BUD" }, \ 265 { XFS_LI_ATTRI, "XFS_LI_ATTRI" }, \ 266 { XFS_LI_ATTRD, "XFS_LI_ATTRD" }, \ 267 { XFS_LI_XMI, "XFS_LI_XMI" }, \ 268 { XFS_LI_XMD, "XFS_LI_XMD" } 269 270 /* 271 * Inode Log Item Format definitions. 272 * 273 * This is the structure used to lay out an inode log item in the 274 * log. The size of the inline data/extents/b-tree root to be logged 275 * (if any) is indicated in the ilf_dsize field. Changes to this structure 276 * must be added on to the end. 277 */ 278 struct xfs_inode_log_format { 279 uint16_t ilf_type; /* inode log item type */ 280 uint16_t ilf_size; /* size of this item */ 281 uint32_t ilf_fields; /* flags for fields logged */ 282 uint16_t ilf_asize; /* size of attr d/ext/root */ 283 uint16_t ilf_dsize; /* size of data/ext/root */ 284 uint32_t ilf_pad; /* pad for 64 bit boundary */ 285 uint64_t ilf_ino; /* inode number */ 286 union { 287 uint32_t ilfu_rdev; /* rdev value for dev inode*/ 288 uint8_t __pad[16]; /* unused */ 289 } ilf_u; 290 int64_t ilf_blkno; /* blkno of inode buffer */ 291 int32_t ilf_len; /* len of inode buffer */ 292 int32_t ilf_boffset; /* off of inode in buffer */ 293 }; 294 295 /* 296 * Old 32 bit systems will log in this format without the 64 bit 297 * alignment padding. Recovery will detect this and convert it to the 298 * correct format. 299 */ 300 struct xfs_inode_log_format_32 { 301 uint16_t ilf_type; /* inode log item type */ 302 uint16_t ilf_size; /* size of this item */ 303 uint32_t ilf_fields; /* flags for fields logged */ 304 uint16_t ilf_asize; /* size of attr d/ext/root */ 305 uint16_t ilf_dsize; /* size of data/ext/root */ 306 uint64_t ilf_ino; /* inode number */ 307 union { 308 uint32_t ilfu_rdev; /* rdev value for dev inode*/ 309 uint8_t __pad[16]; /* unused */ 310 } ilf_u; 311 int64_t ilf_blkno; /* blkno of inode buffer */ 312 int32_t ilf_len; /* len of inode buffer */ 313 int32_t ilf_boffset; /* off of inode in buffer */ 314 } __attribute__((packed)); 315 316 317 /* 318 * Flags for xfs_trans_log_inode flags field. 319 */ 320 #define XFS_ILOG_CORE 0x001 /* log standard inode fields */ 321 #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */ 322 #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */ 323 #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */ 324 #define XFS_ILOG_DEV 0x010 /* log the dev field */ 325 #define XFS_ILOG_UUID 0x020 /* added long ago, but never used */ 326 #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */ 327 #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ 328 #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ 329 #define XFS_ILOG_DOWNER 0x200 /* change the data fork owner on replay */ 330 #define XFS_ILOG_AOWNER 0x400 /* change the attr fork owner on replay */ 331 332 /* 333 * The timestamps are dirty, but not necessarily anything else in the inode 334 * core. Unlike the other fields above this one must never make it to disk 335 * in the ilf_fields of the inode_log_format, but is purely store in-memory in 336 * ili_fields in the inode_log_item. 337 */ 338 #define XFS_ILOG_TIMESTAMP 0x4000 339 340 /* 341 * The version field has been changed, but not necessarily anything else of 342 * interest. This must never make it to disk - it is used purely to ensure that 343 * the inode item ->precommit operation can update the fsync flag triggers 344 * in the inode item correctly. 345 */ 346 #define XFS_ILOG_IVERSION 0x8000 347 348 #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 349 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ 350 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 351 XFS_ILOG_ABROOT | XFS_ILOG_DOWNER | \ 352 XFS_ILOG_AOWNER) 353 354 #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 355 XFS_ILOG_DBROOT) 356 357 #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 358 XFS_ILOG_ABROOT) 359 360 #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ 361 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ 362 XFS_ILOG_DEV | XFS_ILOG_ADATA | \ 363 XFS_ILOG_AEXT | XFS_ILOG_ABROOT | \ 364 XFS_ILOG_TIMESTAMP | XFS_ILOG_DOWNER | \ 365 XFS_ILOG_AOWNER) 366 367 static inline int xfs_ilog_fbroot(int w) 368 { 369 return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT); 370 } 371 372 static inline int xfs_ilog_fext(int w) 373 { 374 return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT); 375 } 376 377 static inline int xfs_ilog_fdata(int w) 378 { 379 return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA); 380 } 381 382 /* 383 * Incore version of the on-disk inode core structures. We log this directly 384 * into the journal in host CPU format (for better or worse) and as such 385 * directly mirrors the xfs_dinode structure as it must contain all the same 386 * information. 387 */ 388 typedef uint64_t xfs_log_timestamp_t; 389 390 /* Legacy timestamp encoding format. */ 391 struct xfs_log_legacy_timestamp { 392 int32_t t_sec; /* timestamp seconds */ 393 int32_t t_nsec; /* timestamp nanoseconds */ 394 }; 395 396 /* 397 * Define the format of the inode core that is logged. This structure must be 398 * kept identical to struct xfs_dinode except for the endianness annotations. 399 */ 400 struct xfs_log_dinode { 401 uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */ 402 uint16_t di_mode; /* mode and type of file */ 403 int8_t di_version; /* inode version */ 404 int8_t di_format; /* format of di_c data */ 405 uint8_t di_pad3[2]; /* unused in v2/3 inodes */ 406 uint32_t di_uid; /* owner's user id */ 407 uint32_t di_gid; /* owner's group id */ 408 uint32_t di_nlink; /* number of links to file */ 409 uint16_t di_projid_lo; /* lower part of owner's project id */ 410 uint16_t di_projid_hi; /* higher part of owner's project id */ 411 union { 412 /* Number of data fork extents if NREXT64 is set */ 413 uint64_t di_big_nextents; 414 415 /* Padding for V3 inodes without NREXT64 set. */ 416 uint64_t di_v3_pad; 417 418 /* Padding and inode flush counter for V2 inodes. */ 419 struct { 420 uint8_t di_v2_pad[6]; /* V2 inode zeroed space */ 421 uint16_t di_flushiter; /* V2 inode incremented on flush */ 422 }; 423 }; 424 xfs_log_timestamp_t di_atime; /* time last accessed */ 425 xfs_log_timestamp_t di_mtime; /* time last modified */ 426 xfs_log_timestamp_t di_ctime; /* time created/inode modified */ 427 xfs_fsize_t di_size; /* number of bytes in file */ 428 xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */ 429 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ 430 union { 431 /* 432 * For V2 inodes and V3 inodes without NREXT64 set, this 433 * is the number of data and attr fork extents. 434 */ 435 struct { 436 uint32_t di_nextents; 437 uint16_t di_anextents; 438 } __packed; 439 440 /* Number of attr fork extents if NREXT64 is set. */ 441 struct { 442 uint32_t di_big_anextents; 443 uint16_t di_nrext64_pad; 444 } __packed; 445 } __packed; 446 uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ 447 int8_t di_aformat; /* format of attr fork's data */ 448 uint32_t di_dmevmask; /* DMIG event mask */ 449 uint16_t di_dmstate; /* DMIG state info */ 450 uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ 451 uint32_t di_gen; /* generation number */ 452 453 /* di_next_unlinked is the only non-core field in the old dinode */ 454 xfs_agino_t di_next_unlinked;/* agi unlinked list ptr */ 455 456 /* start of the extended dinode, writable fields */ 457 uint32_t di_crc; /* CRC of the inode */ 458 uint64_t di_changecount; /* number of attribute changes */ 459 460 /* 461 * The LSN we write to this field during formatting is not a reflection 462 * of the current on-disk LSN. It should never be used for recovery 463 * sequencing, nor should it be recovered into the on-disk inode at all. 464 * See xlog_recover_inode_commit_pass2() and xfs_log_dinode_to_disk() 465 * for details. 466 */ 467 xfs_lsn_t di_lsn; 468 469 uint64_t di_flags2; /* more random flags */ 470 uint32_t di_cowextsize; /* basic cow extent size for file */ 471 uint8_t di_pad2[12]; /* more padding for future expansion */ 472 473 /* fields only written to during inode creation */ 474 xfs_log_timestamp_t di_crtime; /* time created */ 475 xfs_ino_t di_ino; /* inode number */ 476 uuid_t di_uuid; /* UUID of the filesystem */ 477 478 /* structure must be padded to 64 bit alignment */ 479 }; 480 481 #define xfs_log_dinode_size(mp) \ 482 (xfs_has_v3inodes((mp)) ? \ 483 sizeof(struct xfs_log_dinode) : \ 484 offsetof(struct xfs_log_dinode, di_next_unlinked)) 485 486 /* 487 * Buffer Log Format definitions 488 * 489 * These are the physical dirty bitmap definitions for the log format structure. 490 */ 491 #define XFS_BLF_CHUNK 128 492 #define XFS_BLF_SHIFT 7 493 #define BIT_TO_WORD_SHIFT 5 494 #define NBWORD (NBBY * sizeof(unsigned int)) 495 496 /* 497 * This flag indicates that the buffer contains on disk inodes 498 * and requires special recovery handling. 499 */ 500 #define XFS_BLF_INODE_BUF (1<<0) 501 502 /* 503 * This flag indicates that the buffer should not be replayed 504 * during recovery because its blocks are being freed. 505 */ 506 #define XFS_BLF_CANCEL (1<<1) 507 508 /* 509 * This flag indicates that the buffer contains on disk 510 * user or group dquots and may require special recovery handling. 511 */ 512 #define XFS_BLF_UDQUOT_BUF (1<<2) 513 #define XFS_BLF_PDQUOT_BUF (1<<3) 514 #define XFS_BLF_GDQUOT_BUF (1<<4) 515 516 /* 517 * This is the structure used to lay out a buf log item in the log. The data 518 * map describes which 128 byte chunks of the buffer have been logged. 519 * 520 * The placement of blf_map_size causes blf_data_map to start at an odd 521 * multiple of sizeof(unsigned int) offset within the struct. Because the data 522 * bitmap size will always be an even number, the end of the data_map (and 523 * therefore the structure) will also be at an odd multiple of sizeof(unsigned 524 * int). Some 64-bit compilers will insert padding at the end of the struct to 525 * ensure 64-bit alignment of blf_blkno, but 32-bit ones will not. Therefore, 526 * XFS_BLF_DATAMAP_SIZE must be an odd number to make the padding explicit and 527 * keep the structure size consistent between 32-bit and 64-bit platforms. 528 */ 529 #define __XFS_BLF_DATAMAP_SIZE ((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / NBWORD) 530 #define XFS_BLF_DATAMAP_SIZE (__XFS_BLF_DATAMAP_SIZE + 1) 531 532 typedef struct xfs_buf_log_format { 533 unsigned short blf_type; /* buf log item type indicator */ 534 unsigned short blf_size; /* size of this item */ 535 unsigned short blf_flags; /* misc state */ 536 unsigned short blf_len; /* number of blocks in this buf */ 537 int64_t blf_blkno; /* starting blkno of this buf */ 538 unsigned int blf_map_size; /* used size of data bitmap in words */ 539 unsigned int blf_data_map[XFS_BLF_DATAMAP_SIZE]; /* dirty bitmap */ 540 } xfs_buf_log_format_t; 541 542 /* 543 * All buffers now need to tell recovery where the magic number 544 * is so that it can verify and calculate the CRCs on the buffer correctly 545 * once the changes have been replayed into the buffer. 546 * 547 * The type value is held in the upper 5 bits of the blf_flags field, which is 548 * an unsigned 16 bit field. Hence we need to shift it 11 bits up and down. 549 */ 550 #define XFS_BLFT_BITS 5 551 #define XFS_BLFT_SHIFT 11 552 #define XFS_BLFT_MASK (((1 << XFS_BLFT_BITS) - 1) << XFS_BLFT_SHIFT) 553 554 enum xfs_blft { 555 XFS_BLFT_UNKNOWN_BUF = 0, 556 XFS_BLFT_UDQUOT_BUF, 557 XFS_BLFT_PDQUOT_BUF, 558 XFS_BLFT_GDQUOT_BUF, 559 XFS_BLFT_BTREE_BUF, 560 XFS_BLFT_AGF_BUF, 561 XFS_BLFT_AGFL_BUF, 562 XFS_BLFT_AGI_BUF, 563 XFS_BLFT_DINO_BUF, 564 XFS_BLFT_SYMLINK_BUF, 565 XFS_BLFT_DIR_BLOCK_BUF, 566 XFS_BLFT_DIR_DATA_BUF, 567 XFS_BLFT_DIR_FREE_BUF, 568 XFS_BLFT_DIR_LEAF1_BUF, 569 XFS_BLFT_DIR_LEAFN_BUF, 570 XFS_BLFT_DA_NODE_BUF, 571 XFS_BLFT_ATTR_LEAF_BUF, 572 XFS_BLFT_ATTR_RMT_BUF, 573 XFS_BLFT_SB_BUF, 574 XFS_BLFT_RTBITMAP_BUF, 575 XFS_BLFT_RTSUMMARY_BUF, 576 XFS_BLFT_MAX_BUF = (1 << XFS_BLFT_BITS), 577 }; 578 579 static inline void 580 xfs_blft_to_flags(struct xfs_buf_log_format *blf, enum xfs_blft type) 581 { 582 ASSERT(type > XFS_BLFT_UNKNOWN_BUF && type < XFS_BLFT_MAX_BUF); 583 blf->blf_flags &= ~XFS_BLFT_MASK; 584 blf->blf_flags |= ((type << XFS_BLFT_SHIFT) & XFS_BLFT_MASK); 585 } 586 587 static inline uint16_t 588 xfs_blft_from_flags(struct xfs_buf_log_format *blf) 589 { 590 return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT; 591 } 592 593 /* 594 * EFI/EFD log format definitions 595 */ 596 typedef struct xfs_extent { 597 xfs_fsblock_t ext_start; 598 xfs_extlen_t ext_len; 599 } xfs_extent_t; 600 601 /* 602 * Since an xfs_extent_t has types (start:64, len: 32) 603 * there are different alignments on 32 bit and 64 bit kernels. 604 * So we provide the different variants for use by a 605 * conversion routine. 606 */ 607 typedef struct xfs_extent_32 { 608 uint64_t ext_start; 609 uint32_t ext_len; 610 } __attribute__((packed)) xfs_extent_32_t; 611 612 typedef struct xfs_extent_64 { 613 uint64_t ext_start; 614 uint32_t ext_len; 615 uint32_t ext_pad; 616 } xfs_extent_64_t; 617 618 /* 619 * This is the structure used to lay out an efi log item in the 620 * log. The efi_extents field is a variable size array whose 621 * size is given by efi_nextents. 622 */ 623 typedef struct xfs_efi_log_format { 624 uint16_t efi_type; /* efi log item type */ 625 uint16_t efi_size; /* size of this item */ 626 uint32_t efi_nextents; /* # extents to free */ 627 uint64_t efi_id; /* efi identifier */ 628 xfs_extent_t efi_extents[]; /* array of extents to free */ 629 } xfs_efi_log_format_t; 630 631 static inline size_t 632 xfs_efi_log_format_sizeof( 633 unsigned int nr) 634 { 635 return sizeof(struct xfs_efi_log_format) + 636 nr * sizeof(struct xfs_extent); 637 } 638 639 typedef struct xfs_efi_log_format_32 { 640 uint16_t efi_type; /* efi log item type */ 641 uint16_t efi_size; /* size of this item */ 642 uint32_t efi_nextents; /* # extents to free */ 643 uint64_t efi_id; /* efi identifier */ 644 xfs_extent_32_t efi_extents[]; /* array of extents to free */ 645 } __attribute__((packed)) xfs_efi_log_format_32_t; 646 647 static inline size_t 648 xfs_efi_log_format32_sizeof( 649 unsigned int nr) 650 { 651 return sizeof(struct xfs_efi_log_format_32) + 652 nr * sizeof(struct xfs_extent_32); 653 } 654 655 typedef struct xfs_efi_log_format_64 { 656 uint16_t efi_type; /* efi log item type */ 657 uint16_t efi_size; /* size of this item */ 658 uint32_t efi_nextents; /* # extents to free */ 659 uint64_t efi_id; /* efi identifier */ 660 xfs_extent_64_t efi_extents[]; /* array of extents to free */ 661 } xfs_efi_log_format_64_t; 662 663 static inline size_t 664 xfs_efi_log_format64_sizeof( 665 unsigned int nr) 666 { 667 return sizeof(struct xfs_efi_log_format_64) + 668 nr * sizeof(struct xfs_extent_64); 669 } 670 671 /* 672 * This is the structure used to lay out an efd log item in the 673 * log. The efd_extents array is a variable size array whose 674 * size is given by efd_nextents; 675 */ 676 typedef struct xfs_efd_log_format { 677 uint16_t efd_type; /* efd log item type */ 678 uint16_t efd_size; /* size of this item */ 679 uint32_t efd_nextents; /* # of extents freed */ 680 uint64_t efd_efi_id; /* id of corresponding efi */ 681 xfs_extent_t efd_extents[]; /* array of extents freed */ 682 } xfs_efd_log_format_t; 683 684 static inline size_t 685 xfs_efd_log_format_sizeof( 686 unsigned int nr) 687 { 688 return sizeof(struct xfs_efd_log_format) + 689 nr * sizeof(struct xfs_extent); 690 } 691 692 typedef struct xfs_efd_log_format_32 { 693 uint16_t efd_type; /* efd log item type */ 694 uint16_t efd_size; /* size of this item */ 695 uint32_t efd_nextents; /* # of extents freed */ 696 uint64_t efd_efi_id; /* id of corresponding efi */ 697 xfs_extent_32_t efd_extents[]; /* array of extents freed */ 698 } __attribute__((packed)) xfs_efd_log_format_32_t; 699 700 static inline size_t 701 xfs_efd_log_format32_sizeof( 702 unsigned int nr) 703 { 704 return sizeof(struct xfs_efd_log_format_32) + 705 nr * sizeof(struct xfs_extent_32); 706 } 707 708 typedef struct xfs_efd_log_format_64 { 709 uint16_t efd_type; /* efd log item type */ 710 uint16_t efd_size; /* size of this item */ 711 uint32_t efd_nextents; /* # of extents freed */ 712 uint64_t efd_efi_id; /* id of corresponding efi */ 713 xfs_extent_64_t efd_extents[]; /* array of extents freed */ 714 } xfs_efd_log_format_64_t; 715 716 static inline size_t 717 xfs_efd_log_format64_sizeof( 718 unsigned int nr) 719 { 720 return sizeof(struct xfs_efd_log_format_64) + 721 nr * sizeof(struct xfs_extent_64); 722 } 723 724 /* 725 * RUI/RUD (reverse mapping) log format definitions 726 */ 727 struct xfs_map_extent { 728 uint64_t me_owner; 729 uint64_t me_startblock; 730 uint64_t me_startoff; 731 uint32_t me_len; 732 uint32_t me_flags; 733 }; 734 735 /* rmap me_flags: upper bits are flags, lower byte is type code */ 736 #define XFS_RMAP_EXTENT_MAP 1 737 #define XFS_RMAP_EXTENT_MAP_SHARED 2 738 #define XFS_RMAP_EXTENT_UNMAP 3 739 #define XFS_RMAP_EXTENT_UNMAP_SHARED 4 740 #define XFS_RMAP_EXTENT_CONVERT 5 741 #define XFS_RMAP_EXTENT_CONVERT_SHARED 6 742 #define XFS_RMAP_EXTENT_ALLOC 7 743 #define XFS_RMAP_EXTENT_FREE 8 744 #define XFS_RMAP_EXTENT_TYPE_MASK 0xFF 745 746 #define XFS_RMAP_EXTENT_ATTR_FORK (1U << 31) 747 #define XFS_RMAP_EXTENT_BMBT_BLOCK (1U << 30) 748 #define XFS_RMAP_EXTENT_UNWRITTEN (1U << 29) 749 750 #define XFS_RMAP_EXTENT_FLAGS (XFS_RMAP_EXTENT_TYPE_MASK | \ 751 XFS_RMAP_EXTENT_ATTR_FORK | \ 752 XFS_RMAP_EXTENT_BMBT_BLOCK | \ 753 XFS_RMAP_EXTENT_UNWRITTEN) 754 755 /* 756 * This is the structure used to lay out an rui log item in the 757 * log. The rui_extents field is a variable size array whose 758 * size is given by rui_nextents. 759 */ 760 struct xfs_rui_log_format { 761 uint16_t rui_type; /* rui log item type */ 762 uint16_t rui_size; /* size of this item */ 763 uint32_t rui_nextents; /* # extents to free */ 764 uint64_t rui_id; /* rui identifier */ 765 struct xfs_map_extent rui_extents[]; /* array of extents to rmap */ 766 }; 767 768 static inline size_t 769 xfs_rui_log_format_sizeof( 770 unsigned int nr) 771 { 772 return sizeof(struct xfs_rui_log_format) + 773 nr * sizeof(struct xfs_map_extent); 774 } 775 776 /* 777 * This is the structure used to lay out an rud log item in the 778 * log. The rud_extents array is a variable size array whose 779 * size is given by rud_nextents; 780 */ 781 struct xfs_rud_log_format { 782 uint16_t rud_type; /* rud log item type */ 783 uint16_t rud_size; /* size of this item */ 784 uint32_t __pad; 785 uint64_t rud_rui_id; /* id of corresponding rui */ 786 }; 787 788 /* 789 * CUI/CUD (refcount update) log format definitions 790 */ 791 struct xfs_phys_extent { 792 uint64_t pe_startblock; 793 uint32_t pe_len; 794 uint32_t pe_flags; 795 }; 796 797 /* refcount pe_flags: upper bits are flags, lower byte is type code */ 798 /* Type codes are taken directly from enum xfs_refcount_intent_type. */ 799 #define XFS_REFCOUNT_EXTENT_TYPE_MASK 0xFF 800 801 #define XFS_REFCOUNT_EXTENT_FLAGS (XFS_REFCOUNT_EXTENT_TYPE_MASK) 802 803 /* 804 * This is the structure used to lay out a cui log item in the 805 * log. The cui_extents field is a variable size array whose 806 * size is given by cui_nextents. 807 */ 808 struct xfs_cui_log_format { 809 uint16_t cui_type; /* cui log item type */ 810 uint16_t cui_size; /* size of this item */ 811 uint32_t cui_nextents; /* # extents to free */ 812 uint64_t cui_id; /* cui identifier */ 813 struct xfs_phys_extent cui_extents[]; /* array of extents */ 814 }; 815 816 static inline size_t 817 xfs_cui_log_format_sizeof( 818 unsigned int nr) 819 { 820 return sizeof(struct xfs_cui_log_format) + 821 nr * sizeof(struct xfs_phys_extent); 822 } 823 824 /* 825 * This is the structure used to lay out a cud log item in the 826 * log. The cud_extents array is a variable size array whose 827 * size is given by cud_nextents; 828 */ 829 struct xfs_cud_log_format { 830 uint16_t cud_type; /* cud log item type */ 831 uint16_t cud_size; /* size of this item */ 832 uint32_t __pad; 833 uint64_t cud_cui_id; /* id of corresponding cui */ 834 }; 835 836 /* 837 * BUI/BUD (inode block mapping) log format definitions 838 */ 839 840 /* bmbt me_flags: upper bits are flags, lower byte is type code */ 841 /* Type codes are taken directly from enum xfs_bmap_intent_type. */ 842 #define XFS_BMAP_EXTENT_TYPE_MASK 0xFF 843 844 #define XFS_BMAP_EXTENT_ATTR_FORK (1U << 31) 845 #define XFS_BMAP_EXTENT_UNWRITTEN (1U << 30) 846 #define XFS_BMAP_EXTENT_REALTIME (1U << 29) 847 848 #define XFS_BMAP_EXTENT_FLAGS (XFS_BMAP_EXTENT_TYPE_MASK | \ 849 XFS_BMAP_EXTENT_ATTR_FORK | \ 850 XFS_BMAP_EXTENT_UNWRITTEN | \ 851 XFS_BMAP_EXTENT_REALTIME) 852 853 /* 854 * This is the structure used to lay out an bui log item in the 855 * log. The bui_extents field is a variable size array whose 856 * size is given by bui_nextents. 857 */ 858 struct xfs_bui_log_format { 859 uint16_t bui_type; /* bui log item type */ 860 uint16_t bui_size; /* size of this item */ 861 uint32_t bui_nextents; /* # extents to free */ 862 uint64_t bui_id; /* bui identifier */ 863 struct xfs_map_extent bui_extents[]; /* array of extents to bmap */ 864 }; 865 866 static inline size_t 867 xfs_bui_log_format_sizeof( 868 unsigned int nr) 869 { 870 return sizeof(struct xfs_bui_log_format) + 871 nr * sizeof(struct xfs_map_extent); 872 } 873 874 /* 875 * This is the structure used to lay out an bud log item in the 876 * log. The bud_extents array is a variable size array whose 877 * size is given by bud_nextents; 878 */ 879 struct xfs_bud_log_format { 880 uint16_t bud_type; /* bud log item type */ 881 uint16_t bud_size; /* size of this item */ 882 uint32_t __pad; 883 uint64_t bud_bui_id; /* id of corresponding bui */ 884 }; 885 886 /* 887 * XMI/XMD (file mapping exchange) log format definitions 888 */ 889 890 /* This is the structure used to lay out an mapping exchange log item. */ 891 struct xfs_xmi_log_format { 892 uint16_t xmi_type; /* xmi log item type */ 893 uint16_t xmi_size; /* size of this item */ 894 uint32_t __pad; /* must be zero */ 895 uint64_t xmi_id; /* xmi identifier */ 896 897 uint64_t xmi_inode1; /* inumber of first file */ 898 uint64_t xmi_inode2; /* inumber of second file */ 899 uint32_t xmi_igen1; /* generation of first file */ 900 uint32_t xmi_igen2; /* generation of second file */ 901 uint64_t xmi_startoff1; /* block offset into file1 */ 902 uint64_t xmi_startoff2; /* block offset into file2 */ 903 uint64_t xmi_blockcount; /* number of blocks */ 904 uint64_t xmi_flags; /* XFS_EXCHMAPS_* */ 905 uint64_t xmi_isize1; /* intended file1 size */ 906 uint64_t xmi_isize2; /* intended file2 size */ 907 }; 908 909 /* Exchange mappings between extended attribute forks instead of data forks. */ 910 #define XFS_EXCHMAPS_ATTR_FORK (1ULL << 0) 911 912 /* Set the file sizes when finished. */ 913 #define XFS_EXCHMAPS_SET_SIZES (1ULL << 1) 914 915 /* 916 * Exchange the mappings of the two files only if the file allocation units 917 * mapped to file1's range have been written. 918 */ 919 #define XFS_EXCHMAPS_INO1_WRITTEN (1ULL << 2) 920 921 /* Clear the reflink flag from inode1 after the operation. */ 922 #define XFS_EXCHMAPS_CLEAR_INO1_REFLINK (1ULL << 3) 923 924 /* Clear the reflink flag from inode2 after the operation. */ 925 #define XFS_EXCHMAPS_CLEAR_INO2_REFLINK (1ULL << 4) 926 927 #define XFS_EXCHMAPS_LOGGED_FLAGS (XFS_EXCHMAPS_ATTR_FORK | \ 928 XFS_EXCHMAPS_SET_SIZES | \ 929 XFS_EXCHMAPS_INO1_WRITTEN | \ 930 XFS_EXCHMAPS_CLEAR_INO1_REFLINK | \ 931 XFS_EXCHMAPS_CLEAR_INO2_REFLINK) 932 933 /* This is the structure used to lay out an mapping exchange done log item. */ 934 struct xfs_xmd_log_format { 935 uint16_t xmd_type; /* xmd log item type */ 936 uint16_t xmd_size; /* size of this item */ 937 uint32_t __pad; 938 uint64_t xmd_xmi_id; /* id of corresponding xmi */ 939 }; 940 941 /* 942 * Dquot Log format definitions. 943 * 944 * The first two fields must be the type and size fitting into 945 * 32 bits : log_recovery code assumes that. 946 */ 947 typedef struct xfs_dq_logformat { 948 uint16_t qlf_type; /* dquot log item type */ 949 uint16_t qlf_size; /* size of this item */ 950 xfs_dqid_t qlf_id; /* usr/grp/proj id : 32 bits */ 951 int64_t qlf_blkno; /* blkno of dquot buffer */ 952 int32_t qlf_len; /* len of dquot buffer */ 953 uint32_t qlf_boffset; /* off of dquot in buffer */ 954 } xfs_dq_logformat_t; 955 956 /* 957 * log format struct for QUOTAOFF records. 958 * The first two fields must be the type and size fitting into 959 * 32 bits : log_recovery code assumes that. 960 * We write two LI_QUOTAOFF logitems per quotaoff, the last one keeps a pointer 961 * to the first and ensures that the first logitem is taken out of the AIL 962 * only when the last one is securely committed. 963 */ 964 typedef struct xfs_qoff_logformat { 965 unsigned short qf_type; /* quotaoff log item type */ 966 unsigned short qf_size; /* size of this item */ 967 unsigned int qf_flags; /* USR and/or GRP */ 968 char qf_pad[12]; /* padding for future */ 969 } xfs_qoff_logformat_t; 970 971 /* 972 * Disk quotas status in m_qflags, and also sb_qflags. 16 bits. 973 */ 974 #define XFS_UQUOTA_ACCT 0x0001 /* user quota accounting ON */ 975 #define XFS_UQUOTA_ENFD 0x0002 /* user quota limits enforced */ 976 #define XFS_UQUOTA_CHKD 0x0004 /* quotacheck run on usr quotas */ 977 #define XFS_PQUOTA_ACCT 0x0008 /* project quota accounting ON */ 978 #define XFS_OQUOTA_ENFD 0x0010 /* other (grp/prj) quota limits enforced */ 979 #define XFS_OQUOTA_CHKD 0x0020 /* quotacheck run on other (grp/prj) quotas */ 980 #define XFS_GQUOTA_ACCT 0x0040 /* group quota accounting ON */ 981 982 /* 983 * Conversion to and from the combined OQUOTA flag (if necessary) 984 * is done only in xfs_sb_qflags_to_disk() and xfs_sb_qflags_from_disk() 985 */ 986 #define XFS_GQUOTA_ENFD 0x0080 /* group quota limits enforced */ 987 #define XFS_GQUOTA_CHKD 0x0100 /* quotacheck run on group quotas */ 988 #define XFS_PQUOTA_ENFD 0x0200 /* project quota limits enforced */ 989 #define XFS_PQUOTA_CHKD 0x0400 /* quotacheck run on project quotas */ 990 991 #define XFS_ALL_QUOTA_ACCT \ 992 (XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT) 993 #define XFS_ALL_QUOTA_ENFD \ 994 (XFS_UQUOTA_ENFD | XFS_GQUOTA_ENFD | XFS_PQUOTA_ENFD) 995 #define XFS_ALL_QUOTA_CHKD \ 996 (XFS_UQUOTA_CHKD | XFS_GQUOTA_CHKD | XFS_PQUOTA_CHKD) 997 998 #define XFS_MOUNT_QUOTA_ALL (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\ 999 XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\ 1000 XFS_GQUOTA_ENFD|XFS_GQUOTA_CHKD|\ 1001 XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD|\ 1002 XFS_PQUOTA_CHKD) 1003 1004 /* 1005 * Inode create log item structure 1006 * 1007 * Log recovery assumes the first two entries are the type and size and they fit 1008 * in 32 bits. Also in host order (ugh) so they have to be 32 bit aligned so 1009 * decoding can be done correctly. 1010 */ 1011 struct xfs_icreate_log { 1012 uint16_t icl_type; /* type of log format structure */ 1013 uint16_t icl_size; /* size of log format structure */ 1014 __be32 icl_ag; /* ag being allocated in */ 1015 __be32 icl_agbno; /* start block of inode range */ 1016 __be32 icl_count; /* number of inodes to initialise */ 1017 __be32 icl_isize; /* size of inodes */ 1018 __be32 icl_length; /* length of extent to initialise */ 1019 __be32 icl_gen; /* inode generation number to use */ 1020 }; 1021 1022 /* 1023 * Flags for deferred attribute operations. 1024 * Upper bits are flags, lower byte is type code 1025 */ 1026 #define XFS_ATTRI_OP_FLAGS_SET 1 /* Set the attribute */ 1027 #define XFS_ATTRI_OP_FLAGS_REMOVE 2 /* Remove the attribute */ 1028 #define XFS_ATTRI_OP_FLAGS_REPLACE 3 /* Replace the attribute */ 1029 #define XFS_ATTRI_OP_FLAGS_TYPE_MASK 0xFF /* Flags type mask */ 1030 1031 /* 1032 * alfi_attr_filter captures the state of xfs_da_args.attr_filter, so it should 1033 * never have any other bits set. 1034 */ 1035 #define XFS_ATTRI_FILTER_MASK (XFS_ATTR_ROOT | \ 1036 XFS_ATTR_SECURE | \ 1037 XFS_ATTR_INCOMPLETE) 1038 1039 /* 1040 * This is the structure used to lay out an attr log item in the 1041 * log. 1042 */ 1043 struct xfs_attri_log_format { 1044 uint16_t alfi_type; /* attri log item type */ 1045 uint16_t alfi_size; /* size of this item */ 1046 uint32_t __pad; /* pad to 64 bit aligned */ 1047 uint64_t alfi_id; /* attri identifier */ 1048 uint64_t alfi_ino; /* the inode for this attr operation */ 1049 uint32_t alfi_op_flags; /* marks the op as a set or remove */ 1050 uint32_t alfi_name_len; /* attr name length */ 1051 uint32_t alfi_value_len; /* attr value length */ 1052 uint32_t alfi_attr_filter;/* attr filter flags */ 1053 }; 1054 1055 struct xfs_attrd_log_format { 1056 uint16_t alfd_type; /* attrd log item type */ 1057 uint16_t alfd_size; /* size of this item */ 1058 uint32_t __pad; /* pad to 64 bit aligned */ 1059 uint64_t alfd_alf_id; /* id of corresponding attri */ 1060 }; 1061 1062 #endif /* __XFS_LOG_FORMAT_H__ */ 1063