1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 #include <sys/types.h> 26 #include <sys/param.h> 27 #include <sys/systm.h> 28 #include <sys/sysmacros.h> 29 #include <sys/cmn_err.h> 30 #include <sys/kmem.h> 31 #include <sys/thread.h> 32 #include <sys/file.h> 33 #include <sys/vfs.h> 34 #include <sys/zfs_znode.h> 35 #include <sys/zfs_dir.h> 36 #include <sys/zil.h> 37 #include <sys/zil_impl.h> 38 #include <sys/byteorder.h> 39 #include <sys/policy.h> 40 #include <sys/stat.h> 41 #include <sys/mode.h> 42 #include <sys/acl.h> 43 #include <sys/dmu.h> 44 #include <sys/spa.h> 45 #include <sys/zfs_fuid.h> 46 #include <sys/ddi.h> 47 #include <sys/dsl_dataset.h> 48 49 /* 50 * These zfs_log_* functions must be called within a dmu tx, in one 51 * of 2 contexts depending on zilog->z_replay: 52 * 53 * Non replay mode 54 * --------------- 55 * We need to record the transaction so that if it is committed to 56 * the Intent Log then it can be replayed. An intent log transaction 57 * structure (itx_t) is allocated and all the information necessary to 58 * possibly replay the transaction is saved in it. The itx is then assigned 59 * a sequence number and inserted in the in-memory list anchored in the zilog. 60 * 61 * Replay mode 62 * ----------- 63 * We need to mark the intent log record as replayed in the log header. 64 * This is done in the same transaction as the replay so that they 65 * commit atomically. 66 */ 67 68 int 69 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) 70 { 71 int isxvattr = (vap->va_mask & AT_XVATTR); 72 switch (type) { 73 case Z_FILE: 74 if (vsecp == NULL && !isxvattr) 75 return (TX_CREATE); 76 if (vsecp && isxvattr) 77 return (TX_CREATE_ACL_ATTR); 78 if (vsecp) 79 return (TX_CREATE_ACL); 80 else 81 return (TX_CREATE_ATTR); 82 /*NOTREACHED*/ 83 case Z_DIR: 84 if (vsecp == NULL && !isxvattr) 85 return (TX_MKDIR); 86 if (vsecp && isxvattr) 87 return (TX_MKDIR_ACL_ATTR); 88 if (vsecp) 89 return (TX_MKDIR_ACL); 90 else 91 return (TX_MKDIR_ATTR); 92 case Z_XATTRDIR: 93 return (TX_MKXATTR); 94 } 95 ASSERT(0); 96 return (TX_MAX_TYPE); 97 } 98 99 /* 100 * build up the log data necessary for logging xvattr_t 101 * First lr_attr_t is initialized. following the lr_attr_t 102 * is the mapsize and attribute bitmap copied from the xvattr_t. 103 * Following the bitmap and bitmapsize two 64 bit words are reserved 104 * for the create time which may be set. Following the create time 105 * records a single 64 bit integer which has the bits to set on 106 * replay for the xvattr. 107 */ 108 static void 109 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) 110 { 111 uint32_t *bitmap; 112 uint64_t *attrs; 113 uint64_t *crtime; 114 xoptattr_t *xoap; 115 void *scanstamp; 116 int i; 117 118 xoap = xva_getxoptattr(xvap); 119 ASSERT(xoap); 120 121 lrattr->lr_attr_masksize = xvap->xva_mapsize; 122 bitmap = &lrattr->lr_attr_bitmap; 123 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { 124 *bitmap = xvap->xva_reqattrmap[i]; 125 } 126 127 /* Now pack the attributes up in a single uint64_t */ 128 attrs = (uint64_t *)bitmap; 129 crtime = attrs + 1; 130 scanstamp = (caddr_t)(crtime + 2); 131 *attrs = 0; 132 if (XVA_ISSET_REQ(xvap, XAT_READONLY)) 133 *attrs |= (xoap->xoa_readonly == 0) ? 0 : 134 XAT0_READONLY; 135 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) 136 *attrs |= (xoap->xoa_hidden == 0) ? 0 : 137 XAT0_HIDDEN; 138 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) 139 *attrs |= (xoap->xoa_system == 0) ? 0 : 140 XAT0_SYSTEM; 141 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) 142 *attrs |= (xoap->xoa_archive == 0) ? 0 : 143 XAT0_ARCHIVE; 144 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) 145 *attrs |= (xoap->xoa_immutable == 0) ? 0 : 146 XAT0_IMMUTABLE; 147 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) 148 *attrs |= (xoap->xoa_nounlink == 0) ? 0 : 149 XAT0_NOUNLINK; 150 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) 151 *attrs |= (xoap->xoa_appendonly == 0) ? 0 : 152 XAT0_APPENDONLY; 153 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) 154 *attrs |= (xoap->xoa_opaque == 0) ? 0 : 155 XAT0_APPENDONLY; 156 if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) 157 *attrs |= (xoap->xoa_nodump == 0) ? 0 : 158 XAT0_NODUMP; 159 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) 160 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : 161 XAT0_AV_QUARANTINED; 162 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) 163 *attrs |= (xoap->xoa_av_modified == 0) ? 0 : 164 XAT0_AV_MODIFIED; 165 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) 166 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); 167 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) 168 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); 169 if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) 170 *attrs |= (xoap->xoa_reparse == 0) ? 0 : 171 XAT0_REPARSE; 172 if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) 173 *attrs |= (xoap->xoa_offline == 0) ? 0 : 174 XAT0_OFFLINE; 175 if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) 176 *attrs |= (xoap->xoa_sparse == 0) ? 0 : 177 XAT0_SPARSE; 178 } 179 180 static void * 181 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) 182 { 183 zfs_fuid_t *zfuid; 184 uint64_t *fuidloc = start; 185 186 /* First copy in the ACE FUIDs */ 187 for (zfuid = list_head(&fuidp->z_fuids); zfuid; 188 zfuid = list_next(&fuidp->z_fuids, zfuid)) { 189 *fuidloc++ = zfuid->z_logfuid; 190 } 191 return (fuidloc); 192 } 193 194 195 static void * 196 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) 197 { 198 zfs_fuid_domain_t *zdomain; 199 200 /* now copy in the domain info, if any */ 201 if (fuidp->z_domain_str_sz != 0) { 202 for (zdomain = list_head(&fuidp->z_domains); zdomain; 203 zdomain = list_next(&fuidp->z_domains, zdomain)) { 204 bcopy((void *)zdomain->z_domain, start, 205 strlen(zdomain->z_domain) + 1); 206 start = (caddr_t)start + 207 strlen(zdomain->z_domain) + 1; 208 } 209 } 210 return (start); 211 } 212 213 /* 214 * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and 215 * TK_MKXATTR transactions. 216 * 217 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID 218 * domain information appended prior to the name. In this case the 219 * uid/gid in the log record will be a log centric FUID. 220 * 221 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that 222 * may contain attributes, ACL and optional fuid information. 223 * 224 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify 225 * and ACL and normal users/groups in the ACEs. 226 * 227 * There may be an optional xvattr attribute information similar 228 * to zfs_log_setattr. 229 * 230 * Also, after the file name "domain" strings may be appended. 231 */ 232 void 233 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 234 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, 235 zfs_fuid_info_t *fuidp, vattr_t *vap) 236 { 237 itx_t *itx; 238 lr_create_t *lr; 239 lr_acl_create_t *lracl; 240 size_t aclsize = (vsecp != NULL) ? vsecp->vsa_aclentsz : 0; 241 size_t xvatsize = 0; 242 size_t txsize; 243 xvattr_t *xvap = (xvattr_t *)vap; 244 void *end; 245 size_t lrsize; 246 size_t namesize = strlen(name) + 1; 247 size_t fuidsz = 0; 248 249 if (zil_replaying(zilog, tx)) 250 return; 251 252 /* 253 * If we have FUIDs present then add in space for 254 * domains and ACE fuid's if any. 255 */ 256 if (fuidp) { 257 fuidsz += fuidp->z_domain_str_sz; 258 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); 259 } 260 261 if (vap->va_mask & AT_XVATTR) 262 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); 263 264 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || 265 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || 266 (int)txtype == TX_MKXATTR) { 267 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; 268 lrsize = sizeof (*lr); 269 } else { 270 txsize = 271 sizeof (lr_acl_create_t) + namesize + fuidsz + 272 ZIL_ACE_LENGTH(aclsize) + xvatsize; 273 lrsize = sizeof (lr_acl_create_t); 274 } 275 276 itx = zil_itx_create(txtype, txsize); 277 278 lr = (lr_create_t *)&itx->itx_lr; 279 lr->lr_doid = dzp->z_id; 280 lr->lr_foid = zp->z_id; 281 lr->lr_mode = zp->z_mode; 282 if (!IS_EPHEMERAL(zp->z_uid)) { 283 lr->lr_uid = (uint64_t)zp->z_uid; 284 } else { 285 lr->lr_uid = fuidp->z_fuid_owner; 286 } 287 if (!IS_EPHEMERAL(zp->z_gid)) { 288 lr->lr_gid = (uint64_t)zp->z_gid; 289 } else { 290 lr->lr_gid = fuidp->z_fuid_group; 291 } 292 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 293 sizeof (uint64_t)); 294 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 295 lr->lr_crtime, sizeof (uint64_t) * 2); 296 297 if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev, 298 sizeof (lr->lr_rdev)) != 0) 299 lr->lr_rdev = 0; 300 301 /* 302 * Fill in xvattr info if any 303 */ 304 if (vap->va_mask & AT_XVATTR) { 305 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); 306 end = (caddr_t)lr + lrsize + xvatsize; 307 } else { 308 end = (caddr_t)lr + lrsize; 309 } 310 311 /* Now fill in any ACL info */ 312 313 if (vsecp) { 314 lracl = (lr_acl_create_t *)&itx->itx_lr; 315 lracl->lr_aclcnt = vsecp->vsa_aclcnt; 316 lracl->lr_acl_bytes = aclsize; 317 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 318 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 319 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) 320 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 321 else 322 lracl->lr_acl_flags = 0; 323 324 bcopy(vsecp->vsa_aclentp, end, aclsize); 325 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); 326 } 327 328 /* drop in FUID info */ 329 if (fuidp) { 330 end = zfs_log_fuid_ids(fuidp, end); 331 end = zfs_log_fuid_domains(fuidp, end); 332 } 333 /* 334 * Now place file name in log record 335 */ 336 bcopy(name, end, namesize); 337 338 zil_itx_assign(zilog, itx, tx); 339 } 340 341 /* 342 * Handles both TX_REMOVE and TX_RMDIR transactions. 343 */ 344 void 345 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 346 znode_t *dzp, char *name, uint64_t foid) 347 { 348 itx_t *itx; 349 lr_remove_t *lr; 350 size_t namesize = strlen(name) + 1; 351 352 if (zil_replaying(zilog, tx)) 353 return; 354 355 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 356 lr = (lr_remove_t *)&itx->itx_lr; 357 lr->lr_doid = dzp->z_id; 358 bcopy(name, (char *)(lr + 1), namesize); 359 360 itx->itx_oid = foid; 361 362 zil_itx_assign(zilog, itx, tx); 363 } 364 365 /* 366 * Handles TX_LINK transactions. 367 */ 368 void 369 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 370 znode_t *dzp, znode_t *zp, char *name) 371 { 372 itx_t *itx; 373 lr_link_t *lr; 374 size_t namesize = strlen(name) + 1; 375 376 if (zil_replaying(zilog, tx)) 377 return; 378 379 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 380 lr = (lr_link_t *)&itx->itx_lr; 381 lr->lr_doid = dzp->z_id; 382 lr->lr_link_obj = zp->z_id; 383 bcopy(name, (char *)(lr + 1), namesize); 384 385 zil_itx_assign(zilog, itx, tx); 386 } 387 388 /* 389 * Handles TX_SYMLINK transactions. 390 */ 391 void 392 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 393 znode_t *dzp, znode_t *zp, char *name, char *link) 394 { 395 itx_t *itx; 396 lr_create_t *lr; 397 size_t namesize = strlen(name) + 1; 398 size_t linksize = strlen(link) + 1; 399 400 if (zil_replaying(zilog, tx)) 401 return; 402 403 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); 404 lr = (lr_create_t *)&itx->itx_lr; 405 lr->lr_doid = dzp->z_id; 406 lr->lr_foid = zp->z_id; 407 lr->lr_uid = zp->z_uid; 408 lr->lr_gid = zp->z_gid; 409 lr->lr_mode = zp->z_mode; 410 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 411 sizeof (uint64_t)); 412 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 413 lr->lr_crtime, sizeof (uint64_t) * 2); 414 bcopy(name, (char *)(lr + 1), namesize); 415 bcopy(link, (char *)(lr + 1) + namesize, linksize); 416 417 zil_itx_assign(zilog, itx, tx); 418 } 419 420 /* 421 * Handles TX_RENAME transactions. 422 */ 423 void 424 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 425 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) 426 { 427 itx_t *itx; 428 lr_rename_t *lr; 429 size_t snamesize = strlen(sname) + 1; 430 size_t dnamesize = strlen(dname) + 1; 431 432 if (zil_replaying(zilog, tx)) 433 return; 434 435 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); 436 lr = (lr_rename_t *)&itx->itx_lr; 437 lr->lr_sdoid = sdzp->z_id; 438 lr->lr_tdoid = tdzp->z_id; 439 bcopy(sname, (char *)(lr + 1), snamesize); 440 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); 441 itx->itx_oid = szp->z_id; 442 443 zil_itx_assign(zilog, itx, tx); 444 } 445 446 /* 447 * Handles TX_WRITE transactions. 448 */ 449 ssize_t zfs_immediate_write_sz = 32768; 450 451 void 452 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 453 znode_t *zp, offset_t off, ssize_t resid, int ioflag) 454 { 455 itx_wr_state_t write_state; 456 boolean_t slogging; 457 uintptr_t fsync_cnt; 458 ssize_t immediate_write_sz; 459 460 if (zil_replaying(zilog, tx) || zp->z_unlinked) 461 return; 462 463 immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) 464 ? 0 : zfs_immediate_write_sz; 465 466 slogging = spa_has_slogs(zilog->zl_spa) && 467 (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); 468 if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) 469 write_state = WR_INDIRECT; 470 else if (ioflag & (FSYNC | FDSYNC)) 471 write_state = WR_COPIED; 472 else 473 write_state = WR_NEED_COPY; 474 475 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { 476 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); 477 } 478 479 while (resid) { 480 itx_t *itx; 481 lr_write_t *lr; 482 ssize_t len; 483 484 /* 485 * If the write would overflow the largest block then split it. 486 */ 487 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) 488 len = SPA_OLD_MAXBLOCKSIZE >> 1; 489 else 490 len = resid; 491 492 itx = zil_itx_create(txtype, sizeof (*lr) + 493 (write_state == WR_COPIED ? len : 0)); 494 lr = (lr_write_t *)&itx->itx_lr; 495 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, 496 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { 497 zil_itx_destroy(itx); 498 itx = zil_itx_create(txtype, sizeof (*lr)); 499 lr = (lr_write_t *)&itx->itx_lr; 500 write_state = WR_NEED_COPY; 501 } 502 503 itx->itx_wr_state = write_state; 504 if (write_state == WR_NEED_COPY) 505 itx->itx_sod += len; 506 lr->lr_foid = zp->z_id; 507 lr->lr_offset = off; 508 lr->lr_length = len; 509 lr->lr_blkoff = 0; 510 BP_ZERO(&lr->lr_blkptr); 511 512 itx->itx_private = zp->z_zfsvfs; 513 514 if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && 515 (fsync_cnt == 0)) 516 itx->itx_sync = B_FALSE; 517 518 zil_itx_assign(zilog, itx, tx); 519 520 off += len; 521 resid -= len; 522 } 523 } 524 525 /* 526 * Handles TX_TRUNCATE transactions. 527 */ 528 void 529 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 530 znode_t *zp, uint64_t off, uint64_t len) 531 { 532 itx_t *itx; 533 lr_truncate_t *lr; 534 535 if (zil_replaying(zilog, tx) || zp->z_unlinked) 536 return; 537 538 itx = zil_itx_create(txtype, sizeof (*lr)); 539 lr = (lr_truncate_t *)&itx->itx_lr; 540 lr->lr_foid = zp->z_id; 541 lr->lr_offset = off; 542 lr->lr_length = len; 543 544 itx->itx_sync = (zp->z_sync_cnt != 0); 545 zil_itx_assign(zilog, itx, tx); 546 } 547 548 /* 549 * Handles TX_SETATTR transactions. 550 */ 551 void 552 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 553 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 554 { 555 itx_t *itx; 556 lr_setattr_t *lr; 557 xvattr_t *xvap = (xvattr_t *)vap; 558 size_t recsize = sizeof (lr_setattr_t); 559 void *start; 560 561 if (zil_replaying(zilog, tx) || zp->z_unlinked) 562 return; 563 564 /* 565 * If XVATTR set, then log record size needs to allow 566 * for lr_attr_t + xvattr mask, mapsize and create time 567 * plus actual attribute values 568 */ 569 if (vap->va_mask & AT_XVATTR) 570 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 571 572 if (fuidp) 573 recsize += fuidp->z_domain_str_sz; 574 575 itx = zil_itx_create(txtype, recsize); 576 lr = (lr_setattr_t *)&itx->itx_lr; 577 lr->lr_foid = zp->z_id; 578 lr->lr_mask = (uint64_t)mask_applied; 579 lr->lr_mode = (uint64_t)vap->va_mode; 580 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 581 lr->lr_uid = fuidp->z_fuid_owner; 582 else 583 lr->lr_uid = (uint64_t)vap->va_uid; 584 585 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 586 lr->lr_gid = fuidp->z_fuid_group; 587 else 588 lr->lr_gid = (uint64_t)vap->va_gid; 589 590 lr->lr_size = (uint64_t)vap->va_size; 591 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 592 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 593 start = (lr_setattr_t *)(lr + 1); 594 if (vap->va_mask & AT_XVATTR) { 595 zfs_log_xvattr((lr_attr_t *)start, xvap); 596 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 597 } 598 599 /* 600 * Now stick on domain information if any on end 601 */ 602 603 if (fuidp) 604 (void) zfs_log_fuid_domains(fuidp, start); 605 606 itx->itx_sync = (zp->z_sync_cnt != 0); 607 zil_itx_assign(zilog, itx, tx); 608 } 609 610 /* 611 * Handles TX_ACL transactions. 612 */ 613 void 614 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 615 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 616 { 617 itx_t *itx; 618 lr_acl_v0_t *lrv0; 619 lr_acl_t *lr; 620 int txtype; 621 int lrsize; 622 size_t txsize; 623 size_t aclbytes = vsecp->vsa_aclentsz; 624 625 if (zil_replaying(zilog, tx) || zp->z_unlinked) 626 return; 627 628 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? 629 TX_ACL_V0 : TX_ACL; 630 631 if (txtype == TX_ACL) 632 lrsize = sizeof (*lr); 633 else 634 lrsize = sizeof (*lrv0); 635 636 txsize = lrsize + 637 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + 638 (fuidp ? fuidp->z_domain_str_sz : 0) + 639 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); 640 641 itx = zil_itx_create(txtype, txsize); 642 643 lr = (lr_acl_t *)&itx->itx_lr; 644 lr->lr_foid = zp->z_id; 645 if (txtype == TX_ACL) { 646 lr->lr_acl_bytes = aclbytes; 647 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 648 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 649 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 650 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 651 else 652 lr->lr_acl_flags = 0; 653 } 654 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 655 656 if (txtype == TX_ACL_V0) { 657 lrv0 = (lr_acl_v0_t *)lr; 658 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 659 } else { 660 void *start = (ace_t *)(lr + 1); 661 662 bcopy(vsecp->vsa_aclentp, start, aclbytes); 663 664 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); 665 666 if (fuidp) { 667 start = zfs_log_fuid_ids(fuidp, start); 668 (void) zfs_log_fuid_domains(fuidp, start); 669 } 670 } 671 672 itx->itx_sync = (zp->z_sync_cnt != 0); 673 zil_itx_assign(zilog, itx, tx); 674 } 675