1 /* 2 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 #ifndef __XFS_TRANS_H__ 19 #define __XFS_TRANS_H__ 20 21 struct xfs_log_item; 22 23 /* 24 * This is the structure written in the log at the head of 25 * every transaction. It identifies the type and id of the 26 * transaction, and contains the number of items logged by 27 * the transaction so we know how many to expect during recovery. 28 * 29 * Do not change the below structure without redoing the code in 30 * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans(). 31 */ 32 typedef struct xfs_trans_header { 33 uint th_magic; /* magic number */ 34 uint th_type; /* transaction type */ 35 __int32_t th_tid; /* transaction id (unused) */ 36 uint th_num_items; /* num items logged by trans */ 37 } xfs_trans_header_t; 38 39 #define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */ 40 41 /* 42 * Log item types. 43 */ 44 #define XFS_LI_EFI 0x1236 45 #define XFS_LI_EFD 0x1237 46 #define XFS_LI_IUNLINK 0x1238 47 #define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */ 48 #define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */ 49 #define XFS_LI_DQUOT 0x123d 50 #define XFS_LI_QUOTAOFF 0x123e 51 52 /* 53 * Transaction types. Used to distinguish types of buffers. 54 */ 55 #define XFS_TRANS_SETATTR_NOT_SIZE 1 56 #define XFS_TRANS_SETATTR_SIZE 2 57 #define XFS_TRANS_INACTIVE 3 58 #define XFS_TRANS_CREATE 4 59 #define XFS_TRANS_CREATE_TRUNC 5 60 #define XFS_TRANS_TRUNCATE_FILE 6 61 #define XFS_TRANS_REMOVE 7 62 #define XFS_TRANS_LINK 8 63 #define XFS_TRANS_RENAME 9 64 #define XFS_TRANS_MKDIR 10 65 #define XFS_TRANS_RMDIR 11 66 #define XFS_TRANS_SYMLINK 12 67 #define XFS_TRANS_SET_DMATTRS 13 68 #define XFS_TRANS_GROWFS 14 69 #define XFS_TRANS_STRAT_WRITE 15 70 #define XFS_TRANS_DIOSTRAT 16 71 /* 17 was XFS_TRANS_WRITE_SYNC */ 72 #define XFS_TRANS_WRITEID 18 73 #define XFS_TRANS_ADDAFORK 19 74 #define XFS_TRANS_ATTRINVAL 20 75 #define XFS_TRANS_ATRUNCATE 21 76 #define XFS_TRANS_ATTR_SET 22 77 #define XFS_TRANS_ATTR_RM 23 78 #define XFS_TRANS_ATTR_FLAG 24 79 #define XFS_TRANS_CLEAR_AGI_BUCKET 25 80 #define XFS_TRANS_QM_SBCHANGE 26 81 /* 82 * Dummy entries since we use the transaction type to index into the 83 * trans_type[] in xlog_recover_print_trans_head() 84 */ 85 #define XFS_TRANS_DUMMY1 27 86 #define XFS_TRANS_DUMMY2 28 87 #define XFS_TRANS_QM_QUOTAOFF 29 88 #define XFS_TRANS_QM_DQALLOC 30 89 #define XFS_TRANS_QM_SETQLIM 31 90 #define XFS_TRANS_QM_DQCLUSTER 32 91 #define XFS_TRANS_QM_QINOCREATE 33 92 #define XFS_TRANS_QM_QUOTAOFF_END 34 93 #define XFS_TRANS_SB_UNIT 35 94 #define XFS_TRANS_FSYNC_TS 36 95 #define XFS_TRANS_GROWFSRT_ALLOC 37 96 #define XFS_TRANS_GROWFSRT_ZERO 38 97 #define XFS_TRANS_GROWFSRT_FREE 39 98 #define XFS_TRANS_SWAPEXT 40 99 #define XFS_TRANS_SB_COUNT 41 100 #define XFS_TRANS_TYPE_MAX 41 101 /* new transaction types need to be reflected in xfs_logprint(8) */ 102 103 #define XFS_TRANS_TYPES \ 104 { XFS_TRANS_SETATTR_NOT_SIZE, "SETATTR_NOT_SIZE" }, \ 105 { XFS_TRANS_SETATTR_SIZE, "SETATTR_SIZE" }, \ 106 { XFS_TRANS_INACTIVE, "INACTIVE" }, \ 107 { XFS_TRANS_CREATE, "CREATE" }, \ 108 { XFS_TRANS_CREATE_TRUNC, "CREATE_TRUNC" }, \ 109 { XFS_TRANS_TRUNCATE_FILE, "TRUNCATE_FILE" }, \ 110 { XFS_TRANS_REMOVE, "REMOVE" }, \ 111 { XFS_TRANS_LINK, "LINK" }, \ 112 { XFS_TRANS_RENAME, "RENAME" }, \ 113 { XFS_TRANS_MKDIR, "MKDIR" }, \ 114 { XFS_TRANS_RMDIR, "RMDIR" }, \ 115 { XFS_TRANS_SYMLINK, "SYMLINK" }, \ 116 { XFS_TRANS_SET_DMATTRS, "SET_DMATTRS" }, \ 117 { XFS_TRANS_GROWFS, "GROWFS" }, \ 118 { XFS_TRANS_STRAT_WRITE, "STRAT_WRITE" }, \ 119 { XFS_TRANS_DIOSTRAT, "DIOSTRAT" }, \ 120 { XFS_TRANS_WRITEID, "WRITEID" }, \ 121 { XFS_TRANS_ADDAFORK, "ADDAFORK" }, \ 122 { XFS_TRANS_ATTRINVAL, "ATTRINVAL" }, \ 123 { XFS_TRANS_ATRUNCATE, "ATRUNCATE" }, \ 124 { XFS_TRANS_ATTR_SET, "ATTR_SET" }, \ 125 { XFS_TRANS_ATTR_RM, "ATTR_RM" }, \ 126 { XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \ 127 { XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \ 128 { XFS_TRANS_QM_SBCHANGE, "QM_SBCHANGE" }, \ 129 { XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \ 130 { XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \ 131 { XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \ 132 { XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \ 133 { XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \ 134 { XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \ 135 { XFS_TRANS_SB_UNIT, "SB_UNIT" }, \ 136 { XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \ 137 { XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \ 138 { XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \ 139 { XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \ 140 { XFS_TRANS_SWAPEXT, "SWAPEXT" }, \ 141 { XFS_TRANS_SB_COUNT, "SB_COUNT" }, \ 142 { XFS_TRANS_DUMMY1, "DUMMY1" }, \ 143 { XFS_TRANS_DUMMY2, "DUMMY2" }, \ 144 { XLOG_UNMOUNT_REC_TYPE, "UNMOUNT" } 145 146 /* 147 * This structure is used to track log items associated with 148 * a transaction. It points to the log item and keeps some 149 * flags to track the state of the log item. It also tracks 150 * the amount of space needed to log the item it describes 151 * once we get to commit processing (see xfs_trans_commit()). 152 */ 153 typedef struct xfs_log_item_desc { 154 struct xfs_log_item *lid_item; 155 ushort lid_size; 156 unsigned char lid_flags; 157 unsigned char lid_index; 158 } xfs_log_item_desc_t; 159 160 #define XFS_LID_DIRTY 0x1 161 #define XFS_LID_PINNED 0x2 162 #define XFS_LID_BUF_STALE 0x8 163 164 /* 165 * This structure is used to maintain a chunk list of log_item_desc 166 * structures. The free field is a bitmask indicating which descriptors 167 * in this chunk's array are free. The unused field is the first value 168 * not used since this chunk was allocated. 169 */ 170 #define XFS_LIC_NUM_SLOTS 15 171 typedef struct xfs_log_item_chunk { 172 struct xfs_log_item_chunk *lic_next; 173 ushort lic_free; 174 ushort lic_unused; 175 xfs_log_item_desc_t lic_descs[XFS_LIC_NUM_SLOTS]; 176 } xfs_log_item_chunk_t; 177 178 #define XFS_LIC_MAX_SLOT (XFS_LIC_NUM_SLOTS - 1) 179 #define XFS_LIC_FREEMASK ((1 << XFS_LIC_NUM_SLOTS) - 1) 180 181 182 /* 183 * Initialize the given chunk. Set the chunk's free descriptor mask 184 * to indicate that all descriptors are free. The caller gets to set 185 * lic_unused to the right value (0 matches all free). The 186 * lic_descs.lid_index values are set up as each desc is allocated. 187 */ 188 static inline void xfs_lic_init(xfs_log_item_chunk_t *cp) 189 { 190 cp->lic_free = XFS_LIC_FREEMASK; 191 } 192 193 static inline void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot) 194 { 195 cp->lic_descs[slot].lid_index = (unsigned char)(slot); 196 } 197 198 static inline int xfs_lic_vacancy(xfs_log_item_chunk_t *cp) 199 { 200 return cp->lic_free & XFS_LIC_FREEMASK; 201 } 202 203 static inline void xfs_lic_all_free(xfs_log_item_chunk_t *cp) 204 { 205 cp->lic_free = XFS_LIC_FREEMASK; 206 } 207 208 static inline int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp) 209 { 210 return ((cp->lic_free & XFS_LIC_FREEMASK) == XFS_LIC_FREEMASK); 211 } 212 213 static inline int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot) 214 { 215 return (cp->lic_free & (1 << slot)); 216 } 217 218 static inline void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot) 219 { 220 cp->lic_free &= ~(1 << slot); 221 } 222 223 static inline void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot) 224 { 225 cp->lic_free |= 1 << slot; 226 } 227 228 static inline xfs_log_item_desc_t * 229 xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot) 230 { 231 return &(cp->lic_descs[slot]); 232 } 233 234 static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp) 235 { 236 return (uint)dp->lid_index; 237 } 238 239 /* 240 * Calculate the address of a chunk given a descriptor pointer: 241 * dp - dp->lid_index give the address of the start of the lic_descs array. 242 * From this we subtract the offset of the lic_descs field in a chunk. 243 * All of this yields the address of the chunk, which is 244 * cast to a chunk pointer. 245 */ 246 static inline xfs_log_item_chunk_t * 247 xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp) 248 { 249 return (xfs_log_item_chunk_t*) \ 250 (((xfs_caddr_t)((dp) - (dp)->lid_index)) - \ 251 (xfs_caddr_t)(((xfs_log_item_chunk_t*)0)->lic_descs)); 252 } 253 254 #define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */ 255 /* 256 * Values for t_flags. 257 */ 258 #define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */ 259 #define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */ 260 #define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */ 261 #define XFS_TRANS_SYNC 0x08 /* make commit synchronous */ 262 #define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */ 263 #define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */ 264 265 /* 266 * Values for call flags parameter. 267 */ 268 #define XFS_TRANS_NOSLEEP 0x1 269 #define XFS_TRANS_WAIT 0x2 270 #define XFS_TRANS_RELEASE_LOG_RES 0x4 271 #define XFS_TRANS_ABORT 0x8 272 273 /* 274 * Field values for xfs_trans_mod_sb. 275 */ 276 #define XFS_TRANS_SB_ICOUNT 0x00000001 277 #define XFS_TRANS_SB_IFREE 0x00000002 278 #define XFS_TRANS_SB_FDBLOCKS 0x00000004 279 #define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008 280 #define XFS_TRANS_SB_FREXTENTS 0x00000010 281 #define XFS_TRANS_SB_RES_FREXTENTS 0x00000020 282 #define XFS_TRANS_SB_DBLOCKS 0x00000040 283 #define XFS_TRANS_SB_AGCOUNT 0x00000080 284 #define XFS_TRANS_SB_IMAXPCT 0x00000100 285 #define XFS_TRANS_SB_REXTSIZE 0x00000200 286 #define XFS_TRANS_SB_RBMBLOCKS 0x00000400 287 #define XFS_TRANS_SB_RBLOCKS 0x00000800 288 #define XFS_TRANS_SB_REXTENTS 0x00001000 289 #define XFS_TRANS_SB_REXTSLOG 0x00002000 290 291 292 /* 293 * Various log reservation values. 294 * These are based on the size of the file system block 295 * because that is what most transactions manipulate. 296 * Each adds in an additional 128 bytes per item logged to 297 * try to account for the overhead of the transaction mechanism. 298 * 299 * Note: 300 * Most of the reservations underestimate the number of allocation 301 * groups into which they could free extents in the xfs_bmap_finish() 302 * call. This is because the number in the worst case is quite high 303 * and quite unusual. In order to fix this we need to change 304 * xfs_bmap_finish() to free extents in only a single AG at a time. 305 * This will require changes to the EFI code as well, however, so that 306 * the EFI for the extents not freed is logged again in each transaction. 307 * See bug 261917. 308 */ 309 310 /* 311 * Per-extent log reservation for the allocation btree changes 312 * involved in freeing or allocating an extent. 313 * 2 trees * (2 blocks/level * max depth - 1) * block size 314 */ 315 #define XFS_ALLOCFREE_LOG_RES(mp,nx) \ 316 ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1))) 317 #define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \ 318 ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1))) 319 320 /* 321 * Per-directory log reservation for any directory change. 322 * dir blocks: (1 btree block per level + data block + free block) * dblock size 323 * bmap btree: (levels + 2) * max depth * block size 324 * v2 directory blocks can be fragmented below the dirblksize down to the fsb 325 * size, so account for that in the DAENTER macros. 326 */ 327 #define XFS_DIROP_LOG_RES(mp) \ 328 (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \ 329 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1))) 330 #define XFS_DIROP_LOG_COUNT(mp) \ 331 (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \ 332 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1) 333 334 /* 335 * In a write transaction we can allocate a maximum of 2 336 * extents. This gives: 337 * the inode getting the new extents: inode size 338 * the inode's bmap btree: max depth * block size 339 * the agfs of the ags from which the extents are allocated: 2 * sector 340 * the superblock free block counter: sector size 341 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size 342 * And the bmap_finish transaction can free bmap blocks in a join: 343 * the agfs of the ags containing the blocks: 2 * sector size 344 * the agfls of the ags containing the blocks: 2 * sector size 345 * the super block free block counter: sector size 346 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size 347 */ 348 #define XFS_CALC_WRITE_LOG_RES(mp) \ 349 (MAX( \ 350 ((mp)->m_sb.sb_inodesize + \ 351 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \ 352 (2 * (mp)->m_sb.sb_sectsize) + \ 353 (mp)->m_sb.sb_sectsize + \ 354 XFS_ALLOCFREE_LOG_RES(mp, 2) + \ 355 (128 * (4 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))),\ 356 ((2 * (mp)->m_sb.sb_sectsize) + \ 357 (2 * (mp)->m_sb.sb_sectsize) + \ 358 (mp)->m_sb.sb_sectsize + \ 359 XFS_ALLOCFREE_LOG_RES(mp, 2) + \ 360 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) 361 362 #define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write) 363 364 /* 365 * In truncating a file we free up to two extents at once. We can modify: 366 * the inode being truncated: inode size 367 * the inode's bmap btree: (max depth + 1) * block size 368 * And the bmap_finish transaction can free the blocks and bmap blocks: 369 * the agf for each of the ags: 4 * sector size 370 * the agfl for each of the ags: 4 * sector size 371 * the super block to reflect the freed blocks: sector size 372 * worst case split in allocation btrees per extent assuming 4 extents: 373 * 4 exts * 2 trees * (2 * max depth - 1) * block size 374 * the inode btree: max depth * blocksize 375 * the allocation btrees: 2 trees * (max depth - 1) * block size 376 */ 377 #define XFS_CALC_ITRUNCATE_LOG_RES(mp) \ 378 (MAX( \ 379 ((mp)->m_sb.sb_inodesize + \ 380 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1) + \ 381 (128 * (2 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \ 382 ((4 * (mp)->m_sb.sb_sectsize) + \ 383 (4 * (mp)->m_sb.sb_sectsize) + \ 384 (mp)->m_sb.sb_sectsize + \ 385 XFS_ALLOCFREE_LOG_RES(mp, 4) + \ 386 (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))) + \ 387 (128 * 5) + \ 388 XFS_ALLOCFREE_LOG_RES(mp, 1) + \ 389 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \ 390 XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) 391 392 #define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate) 393 394 /* 395 * In renaming a files we can modify: 396 * the four inodes involved: 4 * inode size 397 * the two directory btrees: 2 * (max depth + v2) * dir block size 398 * the two directory bmap btrees: 2 * max depth * block size 399 * And the bmap_finish transaction can free dir and bmap blocks (two sets 400 * of bmap blocks) giving: 401 * the agf for the ags in which the blocks live: 3 * sector size 402 * the agfl for the ags in which the blocks live: 3 * sector size 403 * the superblock for the free block count: sector size 404 * the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size 405 */ 406 #define XFS_CALC_RENAME_LOG_RES(mp) \ 407 (MAX( \ 408 ((4 * (mp)->m_sb.sb_inodesize) + \ 409 (2 * XFS_DIROP_LOG_RES(mp)) + \ 410 (128 * (4 + 2 * XFS_DIROP_LOG_COUNT(mp)))), \ 411 ((3 * (mp)->m_sb.sb_sectsize) + \ 412 (3 * (mp)->m_sb.sb_sectsize) + \ 413 (mp)->m_sb.sb_sectsize + \ 414 XFS_ALLOCFREE_LOG_RES(mp, 3) + \ 415 (128 * (7 + XFS_ALLOCFREE_LOG_COUNT(mp, 3)))))) 416 417 #define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename) 418 419 /* 420 * For creating a link to an inode: 421 * the parent directory inode: inode size 422 * the linked inode: inode size 423 * the directory btree could split: (max depth + v2) * dir block size 424 * the directory bmap btree could join or split: (max depth + v2) * blocksize 425 * And the bmap_finish transaction can free some bmap blocks giving: 426 * the agf for the ag in which the blocks live: sector size 427 * the agfl for the ag in which the blocks live: sector size 428 * the superblock for the free block count: sector size 429 * the allocation btrees: 2 trees * (2 * max depth - 1) * block size 430 */ 431 #define XFS_CALC_LINK_LOG_RES(mp) \ 432 (MAX( \ 433 ((mp)->m_sb.sb_inodesize + \ 434 (mp)->m_sb.sb_inodesize + \ 435 XFS_DIROP_LOG_RES(mp) + \ 436 (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \ 437 ((mp)->m_sb.sb_sectsize + \ 438 (mp)->m_sb.sb_sectsize + \ 439 (mp)->m_sb.sb_sectsize + \ 440 XFS_ALLOCFREE_LOG_RES(mp, 1) + \ 441 (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) 442 443 #define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link) 444 445 /* 446 * For removing a directory entry we can modify: 447 * the parent directory inode: inode size 448 * the removed inode: inode size 449 * the directory btree could join: (max depth + v2) * dir block size 450 * the directory bmap btree could join or split: (max depth + v2) * blocksize 451 * And the bmap_finish transaction can free the dir and bmap blocks giving: 452 * the agf for the ag in which the blocks live: 2 * sector size 453 * the agfl for the ag in which the blocks live: 2 * sector size 454 * the superblock for the free block count: sector size 455 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size 456 */ 457 #define XFS_CALC_REMOVE_LOG_RES(mp) \ 458 (MAX( \ 459 ((mp)->m_sb.sb_inodesize + \ 460 (mp)->m_sb.sb_inodesize + \ 461 XFS_DIROP_LOG_RES(mp) + \ 462 (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \ 463 ((2 * (mp)->m_sb.sb_sectsize) + \ 464 (2 * (mp)->m_sb.sb_sectsize) + \ 465 (mp)->m_sb.sb_sectsize + \ 466 XFS_ALLOCFREE_LOG_RES(mp, 2) + \ 467 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) 468 469 #define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove) 470 471 /* 472 * For symlink we can modify: 473 * the parent directory inode: inode size 474 * the new inode: inode size 475 * the inode btree entry: 1 block 476 * the directory btree: (max depth + v2) * dir block size 477 * the directory inode's bmap btree: (max depth + v2) * block size 478 * the blocks for the symlink: 1 kB 479 * Or in the first xact we allocate some inodes giving: 480 * the agi and agf of the ag getting the new inodes: 2 * sectorsize 481 * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize 482 * the inode btree: max depth * blocksize 483 * the allocation btrees: 2 trees * (2 * max depth - 1) * block size 484 */ 485 #define XFS_CALC_SYMLINK_LOG_RES(mp) \ 486 (MAX( \ 487 ((mp)->m_sb.sb_inodesize + \ 488 (mp)->m_sb.sb_inodesize + \ 489 XFS_FSB_TO_B(mp, 1) + \ 490 XFS_DIROP_LOG_RES(mp) + \ 491 1024 + \ 492 (128 * (4 + XFS_DIROP_LOG_COUNT(mp)))), \ 493 (2 * (mp)->m_sb.sb_sectsize + \ 494 XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \ 495 XFS_FSB_TO_B((mp), (mp)->m_in_maxlevels) + \ 496 XFS_ALLOCFREE_LOG_RES(mp, 1) + \ 497 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \ 498 XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) 499 500 #define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink) 501 502 /* 503 * For create we can modify: 504 * the parent directory inode: inode size 505 * the new inode: inode size 506 * the inode btree entry: block size 507 * the superblock for the nlink flag: sector size 508 * the directory btree: (max depth + v2) * dir block size 509 * the directory inode's bmap btree: (max depth + v2) * block size 510 * Or in the first xact we allocate some inodes giving: 511 * the agi and agf of the ag getting the new inodes: 2 * sectorsize 512 * the superblock for the nlink flag: sector size 513 * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize 514 * the inode btree: max depth * blocksize 515 * the allocation btrees: 2 trees * (max depth - 1) * block size 516 */ 517 #define XFS_CALC_CREATE_LOG_RES(mp) \ 518 (MAX( \ 519 ((mp)->m_sb.sb_inodesize + \ 520 (mp)->m_sb.sb_inodesize + \ 521 (mp)->m_sb.sb_sectsize + \ 522 XFS_FSB_TO_B(mp, 1) + \ 523 XFS_DIROP_LOG_RES(mp) + \ 524 (128 * (3 + XFS_DIROP_LOG_COUNT(mp)))), \ 525 (3 * (mp)->m_sb.sb_sectsize + \ 526 XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \ 527 XFS_FSB_TO_B((mp), (mp)->m_in_maxlevels) + \ 528 XFS_ALLOCFREE_LOG_RES(mp, 1) + \ 529 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \ 530 XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) 531 532 #define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create) 533 534 /* 535 * Making a new directory is the same as creating a new file. 536 */ 537 #define XFS_CALC_MKDIR_LOG_RES(mp) XFS_CALC_CREATE_LOG_RES(mp) 538 539 #define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir) 540 541 /* 542 * In freeing an inode we can modify: 543 * the inode being freed: inode size 544 * the super block free inode counter: sector size 545 * the agi hash list and counters: sector size 546 * the inode btree entry: block size 547 * the on disk inode before ours in the agi hash list: inode cluster size 548 * the inode btree: max depth * blocksize 549 * the allocation btrees: 2 trees * (max depth - 1) * block size 550 */ 551 #define XFS_CALC_IFREE_LOG_RES(mp) \ 552 ((mp)->m_sb.sb_inodesize + \ 553 (mp)->m_sb.sb_sectsize + \ 554 (mp)->m_sb.sb_sectsize + \ 555 XFS_FSB_TO_B((mp), 1) + \ 556 MAX((__uint16_t)XFS_FSB_TO_B((mp), 1), XFS_INODE_CLUSTER_SIZE(mp)) + \ 557 (128 * 5) + \ 558 XFS_ALLOCFREE_LOG_RES(mp, 1) + \ 559 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \ 560 XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) 561 562 563 #define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree) 564 565 /* 566 * When only changing the inode we log the inode and possibly the superblock 567 * We also add a bit of slop for the transaction stuff. 568 */ 569 #define XFS_CALC_ICHANGE_LOG_RES(mp) ((mp)->m_sb.sb_inodesize + \ 570 (mp)->m_sb.sb_sectsize + 512) 571 572 #define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange) 573 574 /* 575 * Growing the data section of the filesystem. 576 * superblock 577 * agi and agf 578 * allocation btrees 579 */ 580 #define XFS_CALC_GROWDATA_LOG_RES(mp) \ 581 ((mp)->m_sb.sb_sectsize * 3 + \ 582 XFS_ALLOCFREE_LOG_RES(mp, 1) + \ 583 (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) 584 585 #define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata) 586 587 /* 588 * Growing the rt section of the filesystem. 589 * In the first set of transactions (ALLOC) we allocate space to the 590 * bitmap or summary files. 591 * superblock: sector size 592 * agf of the ag from which the extent is allocated: sector size 593 * bmap btree for bitmap/summary inode: max depth * blocksize 594 * bitmap/summary inode: inode size 595 * allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize 596 */ 597 #define XFS_CALC_GROWRTALLOC_LOG_RES(mp) \ 598 (2 * (mp)->m_sb.sb_sectsize + \ 599 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \ 600 (mp)->m_sb.sb_inodesize + \ 601 XFS_ALLOCFREE_LOG_RES(mp, 1) + \ 602 (128 * \ 603 (3 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + \ 604 XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) 605 606 #define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc) 607 608 /* 609 * Growing the rt section of the filesystem. 610 * In the second set of transactions (ZERO) we zero the new metadata blocks. 611 * one bitmap/summary block: blocksize 612 */ 613 #define XFS_CALC_GROWRTZERO_LOG_RES(mp) \ 614 ((mp)->m_sb.sb_blocksize + 128) 615 616 #define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero) 617 618 /* 619 * Growing the rt section of the filesystem. 620 * In the third set of transactions (FREE) we update metadata without 621 * allocating any new blocks. 622 * superblock: sector size 623 * bitmap inode: inode size 624 * summary inode: inode size 625 * one bitmap block: blocksize 626 * summary blocks: new summary size 627 */ 628 #define XFS_CALC_GROWRTFREE_LOG_RES(mp) \ 629 ((mp)->m_sb.sb_sectsize + \ 630 2 * (mp)->m_sb.sb_inodesize + \ 631 (mp)->m_sb.sb_blocksize + \ 632 (mp)->m_rsumsize + \ 633 (128 * 5)) 634 635 #define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree) 636 637 /* 638 * Logging the inode modification timestamp on a synchronous write. 639 * inode 640 */ 641 #define XFS_CALC_SWRITE_LOG_RES(mp) \ 642 ((mp)->m_sb.sb_inodesize + 128) 643 644 #define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) 645 646 /* 647 * Logging the inode timestamps on an fsync -- same as SWRITE 648 * as long as SWRITE logs the entire inode core 649 */ 650 #define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) 651 652 /* 653 * Logging the inode mode bits when writing a setuid/setgid file 654 * inode 655 */ 656 #define XFS_CALC_WRITEID_LOG_RES(mp) \ 657 ((mp)->m_sb.sb_inodesize + 128) 658 659 #define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) 660 661 /* 662 * Converting the inode from non-attributed to attributed. 663 * the inode being converted: inode size 664 * agf block and superblock (for block allocation) 665 * the new block (directory sized) 666 * bmap blocks for the new directory block 667 * allocation btrees 668 */ 669 #define XFS_CALC_ADDAFORK_LOG_RES(mp) \ 670 ((mp)->m_sb.sb_inodesize + \ 671 (mp)->m_sb.sb_sectsize * 2 + \ 672 (mp)->m_dirblksize + \ 673 XFS_FSB_TO_B(mp, (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1)) + \ 674 XFS_ALLOCFREE_LOG_RES(mp, 1) + \ 675 (128 * (4 + (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1) + \ 676 XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) 677 678 #define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork) 679 680 /* 681 * Removing the attribute fork of a file 682 * the inode being truncated: inode size 683 * the inode's bmap btree: max depth * block size 684 * And the bmap_finish transaction can free the blocks and bmap blocks: 685 * the agf for each of the ags: 4 * sector size 686 * the agfl for each of the ags: 4 * sector size 687 * the super block to reflect the freed blocks: sector size 688 * worst case split in allocation btrees per extent assuming 4 extents: 689 * 4 exts * 2 trees * (2 * max depth - 1) * block size 690 */ 691 #define XFS_CALC_ATTRINVAL_LOG_RES(mp) \ 692 (MAX( \ 693 ((mp)->m_sb.sb_inodesize + \ 694 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \ 695 (128 * (1 + XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))), \ 696 ((4 * (mp)->m_sb.sb_sectsize) + \ 697 (4 * (mp)->m_sb.sb_sectsize) + \ 698 (mp)->m_sb.sb_sectsize + \ 699 XFS_ALLOCFREE_LOG_RES(mp, 4) + \ 700 (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4)))))) 701 702 #define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval) 703 704 /* 705 * Setting an attribute. 706 * the inode getting the attribute 707 * the superblock for allocations 708 * the agfs extents are allocated from 709 * the attribute btree * max depth 710 * the inode allocation btree 711 * Since attribute transaction space is dependent on the size of the attribute, 712 * the calculation is done partially at mount time and partially at runtime. 713 */ 714 #define XFS_CALC_ATTRSET_LOG_RES(mp) \ 715 ((mp)->m_sb.sb_inodesize + \ 716 (mp)->m_sb.sb_sectsize + \ 717 XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \ 718 (128 * (2 + XFS_DA_NODE_MAXDEPTH))) 719 720 #define XFS_ATTRSET_LOG_RES(mp, ext) \ 721 ((mp)->m_reservations.tr_attrset + \ 722 (ext * (mp)->m_sb.sb_sectsize) + \ 723 (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \ 724 (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))))) 725 726 /* 727 * Removing an attribute. 728 * the inode: inode size 729 * the attribute btree could join: max depth * block size 730 * the inode bmap btree could join or split: max depth * block size 731 * And the bmap_finish transaction can free the attr blocks freed giving: 732 * the agf for the ag in which the blocks live: 2 * sector size 733 * the agfl for the ag in which the blocks live: 2 * sector size 734 * the superblock for the free block count: sector size 735 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size 736 */ 737 #define XFS_CALC_ATTRRM_LOG_RES(mp) \ 738 (MAX( \ 739 ((mp)->m_sb.sb_inodesize + \ 740 XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \ 741 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \ 742 (128 * (1 + XFS_DA_NODE_MAXDEPTH + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \ 743 ((2 * (mp)->m_sb.sb_sectsize) + \ 744 (2 * (mp)->m_sb.sb_sectsize) + \ 745 (mp)->m_sb.sb_sectsize + \ 746 XFS_ALLOCFREE_LOG_RES(mp, 2) + \ 747 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) 748 749 #define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm) 750 751 /* 752 * Clearing a bad agino number in an agi hash bucket. 753 */ 754 #define XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp) \ 755 ((mp)->m_sb.sb_sectsize + 128) 756 757 #define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi) 758 759 760 /* 761 * Various log count values. 762 */ 763 #define XFS_DEFAULT_LOG_COUNT 1 764 #define XFS_DEFAULT_PERM_LOG_COUNT 2 765 #define XFS_ITRUNCATE_LOG_COUNT 2 766 #define XFS_INACTIVE_LOG_COUNT 2 767 #define XFS_CREATE_LOG_COUNT 2 768 #define XFS_MKDIR_LOG_COUNT 3 769 #define XFS_SYMLINK_LOG_COUNT 3 770 #define XFS_REMOVE_LOG_COUNT 2 771 #define XFS_LINK_LOG_COUNT 2 772 #define XFS_RENAME_LOG_COUNT 2 773 #define XFS_WRITE_LOG_COUNT 2 774 #define XFS_ADDAFORK_LOG_COUNT 2 775 #define XFS_ATTRINVAL_LOG_COUNT 1 776 #define XFS_ATTRSET_LOG_COUNT 3 777 #define XFS_ATTRRM_LOG_COUNT 3 778 779 /* 780 * Here we centralize the specification of XFS meta-data buffer 781 * reference count values. This determine how hard the buffer 782 * cache tries to hold onto the buffer. 783 */ 784 #define XFS_AGF_REF 4 785 #define XFS_AGI_REF 4 786 #define XFS_AGFL_REF 3 787 #define XFS_INO_BTREE_REF 3 788 #define XFS_ALLOC_BTREE_REF 2 789 #define XFS_BMAP_BTREE_REF 2 790 #define XFS_DIR_BTREE_REF 2 791 #define XFS_ATTR_BTREE_REF 1 792 #define XFS_INO_REF 1 793 #define XFS_DQUOT_REF 1 794 795 #ifdef __KERNEL__ 796 797 struct xfs_buf; 798 struct xfs_buftarg; 799 struct xfs_efd_log_item; 800 struct xfs_efi_log_item; 801 struct xfs_inode; 802 struct xfs_item_ops; 803 struct xfs_log_iovec; 804 struct xfs_log_item_desc; 805 struct xfs_mount; 806 struct xfs_trans; 807 struct xfs_dquot_acct; 808 809 typedef struct xfs_log_item { 810 struct list_head li_ail; /* AIL pointers */ 811 xfs_lsn_t li_lsn; /* last on-disk lsn */ 812 struct xfs_log_item_desc *li_desc; /* ptr to current desc*/ 813 struct xfs_mount *li_mountp; /* ptr to fs mount */ 814 struct xfs_ail *li_ailp; /* ptr to AIL */ 815 uint li_type; /* item type */ 816 uint li_flags; /* misc flags */ 817 struct xfs_log_item *li_bio_list; /* buffer item list */ 818 void (*li_cb)(struct xfs_buf *, 819 struct xfs_log_item *); 820 /* buffer item iodone */ 821 /* callback func */ 822 struct xfs_item_ops *li_ops; /* function list */ 823 } xfs_log_item_t; 824 825 #define XFS_LI_IN_AIL 0x1 826 #define XFS_LI_ABORTED 0x2 827 828 #define XFS_LI_FLAGS \ 829 { XFS_LI_IN_AIL, "IN_AIL" }, \ 830 { XFS_LI_ABORTED, "ABORTED" } 831 832 typedef struct xfs_item_ops { 833 uint (*iop_size)(xfs_log_item_t *); 834 void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *); 835 void (*iop_pin)(xfs_log_item_t *); 836 void (*iop_unpin)(xfs_log_item_t *, int); 837 void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *); 838 uint (*iop_trylock)(xfs_log_item_t *); 839 void (*iop_unlock)(xfs_log_item_t *); 840 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t); 841 void (*iop_push)(xfs_log_item_t *); 842 void (*iop_pushbuf)(xfs_log_item_t *); 843 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t); 844 } xfs_item_ops_t; 845 846 #define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip) 847 #define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp) 848 #define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip) 849 #define IOP_UNPIN(ip, flags) (*(ip)->li_ops->iop_unpin)(ip, flags) 850 #define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp) 851 #define IOP_TRYLOCK(ip) (*(ip)->li_ops->iop_trylock)(ip) 852 #define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip) 853 #define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn) 854 #define IOP_PUSH(ip) (*(ip)->li_ops->iop_push)(ip) 855 #define IOP_PUSHBUF(ip) (*(ip)->li_ops->iop_pushbuf)(ip) 856 #define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn) 857 858 /* 859 * Return values for the IOP_TRYLOCK() routines. 860 */ 861 #define XFS_ITEM_SUCCESS 0 862 #define XFS_ITEM_PINNED 1 863 #define XFS_ITEM_LOCKED 2 864 #define XFS_ITEM_PUSHBUF 3 865 866 /* 867 * This structure is used to maintain a list of block ranges that have been 868 * freed in the transaction. The ranges are listed in the perag[] busy list 869 * between when they're freed and the transaction is committed to disk. 870 */ 871 872 typedef struct xfs_log_busy_slot { 873 xfs_agnumber_t lbc_ag; 874 ushort lbc_idx; /* index in perag.busy[] */ 875 } xfs_log_busy_slot_t; 876 877 #define XFS_LBC_NUM_SLOTS 31 878 typedef struct xfs_log_busy_chunk { 879 struct xfs_log_busy_chunk *lbc_next; 880 uint lbc_free; /* free slots bitmask */ 881 ushort lbc_unused; /* first unused */ 882 xfs_log_busy_slot_t lbc_busy[XFS_LBC_NUM_SLOTS]; 883 } xfs_log_busy_chunk_t; 884 885 #define XFS_LBC_MAX_SLOT (XFS_LBC_NUM_SLOTS - 1) 886 #define XFS_LBC_FREEMASK ((1U << XFS_LBC_NUM_SLOTS) - 1) 887 888 #define XFS_LBC_INIT(cp) ((cp)->lbc_free = XFS_LBC_FREEMASK) 889 #define XFS_LBC_CLAIM(cp, slot) ((cp)->lbc_free &= ~(1 << (slot))) 890 #define XFS_LBC_SLOT(cp, slot) (&((cp)->lbc_busy[(slot)])) 891 #define XFS_LBC_VACANCY(cp) (((cp)->lbc_free) & XFS_LBC_FREEMASK) 892 #define XFS_LBC_ISFREE(cp, slot) ((cp)->lbc_free & (1 << (slot))) 893 894 /* 895 * This is the type of function which can be given to xfs_trans_callback() 896 * to be called upon the transaction's commit to disk. 897 */ 898 typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *); 899 900 /* 901 * This is the structure maintained for every active transaction. 902 */ 903 typedef struct xfs_trans { 904 unsigned int t_magic; /* magic number */ 905 xfs_log_callback_t t_logcb; /* log callback struct */ 906 unsigned int t_type; /* transaction type */ 907 unsigned int t_log_res; /* amt of log space resvd */ 908 unsigned int t_log_count; /* count for perm log res */ 909 unsigned int t_blk_res; /* # of blocks resvd */ 910 unsigned int t_blk_res_used; /* # of resvd blocks used */ 911 unsigned int t_rtx_res; /* # of rt extents resvd */ 912 unsigned int t_rtx_res_used; /* # of resvd rt extents used */ 913 struct xlog_ticket *t_ticket; /* log mgr ticket */ 914 xfs_lsn_t t_lsn; /* log seq num of start of 915 * transaction. */ 916 xfs_lsn_t t_commit_lsn; /* log seq num of end of 917 * transaction. */ 918 struct xfs_mount *t_mountp; /* ptr to fs mount struct */ 919 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */ 920 xfs_trans_callback_t t_callback; /* transaction callback */ 921 void *t_callarg; /* callback arg */ 922 unsigned int t_flags; /* misc flags */ 923 int64_t t_icount_delta; /* superblock icount change */ 924 int64_t t_ifree_delta; /* superblock ifree change */ 925 int64_t t_fdblocks_delta; /* superblock fdblocks chg */ 926 int64_t t_res_fdblocks_delta; /* on-disk only chg */ 927 int64_t t_frextents_delta;/* superblock freextents chg*/ 928 int64_t t_res_frextents_delta; /* on-disk only chg */ 929 #ifdef DEBUG 930 int64_t t_ag_freeblks_delta; /* debugging counter */ 931 int64_t t_ag_flist_delta; /* debugging counter */ 932 int64_t t_ag_btree_delta; /* debugging counter */ 933 #endif 934 int64_t t_dblocks_delta;/* superblock dblocks change */ 935 int64_t t_agcount_delta;/* superblock agcount change */ 936 int64_t t_imaxpct_delta;/* superblock imaxpct change */ 937 int64_t t_rextsize_delta;/* superblock rextsize chg */ 938 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */ 939 int64_t t_rblocks_delta;/* superblock rblocks change */ 940 int64_t t_rextents_delta;/* superblocks rextents chg */ 941 int64_t t_rextslog_delta;/* superblocks rextslog chg */ 942 unsigned int t_items_free; /* log item descs free */ 943 xfs_log_item_chunk_t t_items; /* first log item desc chunk */ 944 xfs_trans_header_t t_header; /* header for in-log trans */ 945 unsigned int t_busy_free; /* busy descs free */ 946 xfs_log_busy_chunk_t t_busy; /* busy/async free blocks */ 947 unsigned long t_pflags; /* saved process flags state */ 948 } xfs_trans_t; 949 950 /* 951 * XFS transaction mechanism exported interfaces that are 952 * actually macros. 953 */ 954 #define xfs_trans_get_log_res(tp) ((tp)->t_log_res) 955 #define xfs_trans_get_log_count(tp) ((tp)->t_log_count) 956 #define xfs_trans_get_block_res(tp) ((tp)->t_blk_res) 957 #define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC) 958 959 #ifdef DEBUG 960 #define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d) 961 #define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d) 962 #define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d) 963 #else 964 #define xfs_trans_agblocks_delta(tp, d) 965 #define xfs_trans_agflist_delta(tp, d) 966 #define xfs_trans_agbtree_delta(tp, d) 967 #endif 968 969 /* 970 * XFS transaction mechanism exported interfaces. 971 */ 972 xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint); 973 xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, uint); 974 xfs_trans_t *xfs_trans_dup(xfs_trans_t *); 975 int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint, 976 uint, uint); 977 void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t); 978 struct xfs_buf *xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t, 979 int, uint); 980 int xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *, 981 struct xfs_buftarg *, xfs_daddr_t, int, uint, 982 struct xfs_buf **); 983 struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int); 984 985 void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *); 986 void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *); 987 void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *); 988 void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *); 989 void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *); 990 void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *); 991 void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *); 992 void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint); 993 void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *); 994 int xfs_trans_iget(struct xfs_mount *, xfs_trans_t *, 995 xfs_ino_t , uint, uint, struct xfs_inode **); 996 void xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint); 997 void xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *); 998 void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint); 999 void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint); 1000 struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint); 1001 void xfs_efi_release(struct xfs_efi_log_item *, uint); 1002 void xfs_trans_log_efi_extent(xfs_trans_t *, 1003 struct xfs_efi_log_item *, 1004 xfs_fsblock_t, 1005 xfs_extlen_t); 1006 struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *, 1007 struct xfs_efi_log_item *, 1008 uint); 1009 void xfs_trans_log_efd_extent(xfs_trans_t *, 1010 struct xfs_efd_log_item *, 1011 xfs_fsblock_t, 1012 xfs_extlen_t); 1013 int _xfs_trans_commit(xfs_trans_t *, 1014 uint flags, 1015 int *); 1016 #define xfs_trans_commit(tp, flags) _xfs_trans_commit(tp, flags, NULL) 1017 void xfs_trans_cancel(xfs_trans_t *, int); 1018 int xfs_trans_ail_init(struct xfs_mount *); 1019 void xfs_trans_ail_destroy(struct xfs_mount *); 1020 xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp, 1021 xfs_agnumber_t ag, 1022 xfs_extlen_t idx); 1023 1024 extern kmem_zone_t *xfs_trans_zone; 1025 1026 #endif /* __KERNEL__ */ 1027 1028 void xfs_trans_init(struct xfs_mount *); 1029 int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *); 1030 1031 #endif /* __XFS_TRANS_H__ */ 1032