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