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 } 173 174 static void * 175 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) 176 { 177 zfs_fuid_t *zfuid; 178 uint64_t *fuidloc = start; 179 180 /* First copy in the ACE FUIDs */ 181 for (zfuid = list_head(&fuidp->z_fuids); zfuid; 182 zfuid = list_next(&fuidp->z_fuids, zfuid)) { 183 *fuidloc++ = zfuid->z_logfuid; 184 } 185 return (fuidloc); 186 } 187 188 189 static void * 190 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) 191 { 192 zfs_fuid_domain_t *zdomain; 193 194 /* now copy in the domain info, if any */ 195 if (fuidp->z_domain_str_sz != 0) { 196 for (zdomain = list_head(&fuidp->z_domains); zdomain; 197 zdomain = list_next(&fuidp->z_domains, zdomain)) { 198 bcopy((void *)zdomain->z_domain, start, 199 strlen(zdomain->z_domain) + 1); 200 start = (caddr_t)start + 201 strlen(zdomain->z_domain) + 1; 202 } 203 } 204 return (start); 205 } 206 207 /* 208 * zfs_log_create() is used to handle TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, 209 * TX_MKDIR_ATTR and TX_MKXATTR 210 * transactions. 211 * 212 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID 213 * domain information appended prior to the name. In this case the 214 * uid/gid in the log record will be a log centric FUID. 215 * 216 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that 217 * may contain attributes, ACL and optional fuid information. 218 * 219 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify 220 * and ACL and normal users/groups in the ACEs. 221 * 222 * There may be an optional xvattr attribute information similar 223 * to zfs_log_setattr. 224 * 225 * Also, after the file name "domain" strings may be appended. 226 */ 227 void 228 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 229 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, 230 zfs_fuid_info_t *fuidp, vattr_t *vap) 231 { 232 itx_t *itx; 233 lr_create_t *lr; 234 lr_acl_create_t *lracl; 235 size_t aclsize; 236 size_t xvatsize = 0; 237 size_t txsize; 238 xvattr_t *xvap = (xvattr_t *)vap; 239 void *end; 240 size_t lrsize; 241 size_t namesize = strlen(name) + 1; 242 size_t fuidsz = 0; 243 244 if (zil_replaying(zilog, tx)) 245 return; 246 247 /* 248 * If we have FUIDs present then add in space for 249 * domains and ACE fuid's if any. 250 */ 251 if (fuidp) { 252 fuidsz += fuidp->z_domain_str_sz; 253 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); 254 } 255 256 if (vap->va_mask & AT_XVATTR) 257 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); 258 259 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || 260 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || 261 (int)txtype == TX_MKXATTR) { 262 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; 263 lrsize = sizeof (*lr); 264 } else { 265 aclsize = (vsecp) ? vsecp->vsa_aclentsz : 0; 266 txsize = 267 sizeof (lr_acl_create_t) + namesize + fuidsz + 268 ZIL_ACE_LENGTH(aclsize) + xvatsize; 269 lrsize = sizeof (lr_acl_create_t); 270 } 271 272 itx = zil_itx_create(txtype, txsize); 273 274 lr = (lr_create_t *)&itx->itx_lr; 275 lr->lr_doid = dzp->z_id; 276 lr->lr_foid = zp->z_id; 277 lr->lr_mode = zp->z_mode; 278 if (!IS_EPHEMERAL(zp->z_uid)) { 279 lr->lr_uid = (uint64_t)zp->z_uid; 280 } else { 281 lr->lr_uid = fuidp->z_fuid_owner; 282 } 283 if (!IS_EPHEMERAL(zp->z_gid)) { 284 lr->lr_gid = (uint64_t)zp->z_gid; 285 } else { 286 lr->lr_gid = fuidp->z_fuid_group; 287 } 288 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 289 sizeof (uint64_t)); 290 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 291 lr->lr_crtime, sizeof (uint64_t) * 2); 292 293 if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev, 294 sizeof (lr->lr_rdev)) != 0) 295 lr->lr_rdev = 0; 296 297 /* 298 * Fill in xvattr info if any 299 */ 300 if (vap->va_mask & AT_XVATTR) { 301 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); 302 end = (caddr_t)lr + lrsize + xvatsize; 303 } else { 304 end = (caddr_t)lr + lrsize; 305 } 306 307 /* Now fill in any ACL info */ 308 309 if (vsecp) { 310 lracl = (lr_acl_create_t *)&itx->itx_lr; 311 lracl->lr_aclcnt = vsecp->vsa_aclcnt; 312 lracl->lr_acl_bytes = aclsize; 313 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 314 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 315 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) 316 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 317 else 318 lracl->lr_acl_flags = 0; 319 320 bcopy(vsecp->vsa_aclentp, end, aclsize); 321 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); 322 } 323 324 /* drop in FUID info */ 325 if (fuidp) { 326 end = zfs_log_fuid_ids(fuidp, end); 327 end = zfs_log_fuid_domains(fuidp, end); 328 } 329 /* 330 * Now place file name in log record 331 */ 332 bcopy(name, end, namesize); 333 334 zil_itx_assign(zilog, itx, tx); 335 } 336 337 /* 338 * zfs_log_remove() handles both TX_REMOVE and TX_RMDIR transactions. 339 */ 340 void 341 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 342 znode_t *dzp, char *name, uint64_t foid) 343 { 344 itx_t *itx; 345 lr_remove_t *lr; 346 size_t namesize = strlen(name) + 1; 347 348 if (zil_replaying(zilog, tx)) 349 return; 350 351 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 352 lr = (lr_remove_t *)&itx->itx_lr; 353 lr->lr_doid = dzp->z_id; 354 bcopy(name, (char *)(lr + 1), namesize); 355 356 itx->itx_oid = foid; 357 358 zil_itx_assign(zilog, itx, tx); 359 } 360 361 /* 362 * zfs_log_link() handles TX_LINK transactions. 363 */ 364 void 365 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 366 znode_t *dzp, znode_t *zp, char *name) 367 { 368 itx_t *itx; 369 lr_link_t *lr; 370 size_t namesize = strlen(name) + 1; 371 372 if (zil_replaying(zilog, tx)) 373 return; 374 375 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 376 lr = (lr_link_t *)&itx->itx_lr; 377 lr->lr_doid = dzp->z_id; 378 lr->lr_link_obj = zp->z_id; 379 bcopy(name, (char *)(lr + 1), namesize); 380 381 zil_itx_assign(zilog, itx, tx); 382 } 383 384 /* 385 * zfs_log_symlink() handles TX_SYMLINK transactions. 386 */ 387 void 388 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 389 znode_t *dzp, znode_t *zp, char *name, char *link) 390 { 391 itx_t *itx; 392 lr_create_t *lr; 393 size_t namesize = strlen(name) + 1; 394 size_t linksize = strlen(link) + 1; 395 396 if (zil_replaying(zilog, tx)) 397 return; 398 399 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); 400 lr = (lr_create_t *)&itx->itx_lr; 401 lr->lr_doid = dzp->z_id; 402 lr->lr_foid = zp->z_id; 403 lr->lr_uid = zp->z_uid; 404 lr->lr_gid = zp->z_gid; 405 lr->lr_mode = zp->z_mode; 406 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 407 sizeof (uint64_t)); 408 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 409 lr->lr_crtime, sizeof (uint64_t) * 2); 410 bcopy(name, (char *)(lr + 1), namesize); 411 bcopy(link, (char *)(lr + 1) + namesize, linksize); 412 413 zil_itx_assign(zilog, itx, tx); 414 } 415 416 /* 417 * zfs_log_rename() handles TX_RENAME transactions. 418 */ 419 void 420 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 421 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname) 422 { 423 itx_t *itx; 424 lr_rename_t *lr; 425 size_t snamesize = strlen(sname) + 1; 426 size_t dnamesize = strlen(dname) + 1; 427 428 if (zil_replaying(zilog, tx)) 429 return; 430 431 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); 432 lr = (lr_rename_t *)&itx->itx_lr; 433 lr->lr_sdoid = sdzp->z_id; 434 lr->lr_tdoid = tdzp->z_id; 435 bcopy(sname, (char *)(lr + 1), snamesize); 436 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); 437 438 zil_itx_assign(zilog, itx, tx); 439 } 440 441 /* 442 * zfs_log_write() handles TX_WRITE transactions. 443 */ 444 ssize_t zfs_immediate_write_sz = 32768; 445 446 void 447 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 448 znode_t *zp, offset_t off, ssize_t resid, int ioflag) 449 { 450 itx_wr_state_t write_state; 451 boolean_t slogging; 452 uintptr_t fsync_cnt; 453 ssize_t immediate_write_sz; 454 455 if (zil_replaying(zilog, tx) || zp->z_unlinked) 456 return; 457 458 immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) 459 ? 0 : zfs_immediate_write_sz; 460 461 slogging = spa_has_slogs(zilog->zl_spa) && 462 (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); 463 if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) 464 write_state = WR_INDIRECT; 465 else if (ioflag & (FSYNC | FDSYNC)) 466 write_state = WR_COPIED; 467 else 468 write_state = WR_NEED_COPY; 469 470 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { 471 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); 472 } 473 474 while (resid) { 475 itx_t *itx; 476 lr_write_t *lr; 477 ssize_t len; 478 479 /* 480 * If the write would overflow the largest block then split it. 481 */ 482 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) 483 len = SPA_MAXBLOCKSIZE >> 1; 484 else 485 len = resid; 486 487 itx = zil_itx_create(txtype, sizeof (*lr) + 488 (write_state == WR_COPIED ? len : 0)); 489 lr = (lr_write_t *)&itx->itx_lr; 490 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, 491 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { 492 zil_itx_destroy(itx); 493 itx = zil_itx_create(txtype, sizeof (*lr)); 494 lr = (lr_write_t *)&itx->itx_lr; 495 write_state = WR_NEED_COPY; 496 } 497 498 itx->itx_wr_state = write_state; 499 if (write_state == WR_NEED_COPY) 500 itx->itx_sod += len; 501 lr->lr_foid = zp->z_id; 502 lr->lr_offset = off; 503 lr->lr_length = len; 504 lr->lr_blkoff = 0; 505 BP_ZERO(&lr->lr_blkptr); 506 507 itx->itx_private = zp->z_zfsvfs; 508 509 if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && 510 (fsync_cnt == 0)) 511 itx->itx_sync = B_FALSE; 512 513 zil_itx_assign(zilog, itx, tx); 514 515 off += len; 516 resid -= len; 517 } 518 } 519 520 /* 521 * zfs_log_truncate() handles TX_TRUNCATE transactions. 522 */ 523 void 524 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 525 znode_t *zp, uint64_t off, uint64_t len) 526 { 527 itx_t *itx; 528 lr_truncate_t *lr; 529 530 if (zil_replaying(zilog, tx) || zp->z_unlinked) 531 return; 532 533 itx = zil_itx_create(txtype, sizeof (*lr)); 534 lr = (lr_truncate_t *)&itx->itx_lr; 535 lr->lr_foid = zp->z_id; 536 lr->lr_offset = off; 537 lr->lr_length = len; 538 539 itx->itx_sync = (zp->z_sync_cnt != 0); 540 zil_itx_assign(zilog, itx, tx); 541 } 542 543 /* 544 * zfs_log_setattr() handles TX_SETATTR transactions. 545 */ 546 void 547 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 548 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 549 { 550 itx_t *itx; 551 lr_setattr_t *lr; 552 xvattr_t *xvap = (xvattr_t *)vap; 553 size_t recsize = sizeof (lr_setattr_t); 554 void *start; 555 556 if (zil_replaying(zilog, tx) || zp->z_unlinked) 557 return; 558 559 /* 560 * If XVATTR set, then log record size needs to allow 561 * for lr_attr_t + xvattr mask, mapsize and create time 562 * plus actual attribute values 563 */ 564 if (vap->va_mask & AT_XVATTR) 565 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 566 567 if (fuidp) 568 recsize += fuidp->z_domain_str_sz; 569 570 itx = zil_itx_create(txtype, recsize); 571 lr = (lr_setattr_t *)&itx->itx_lr; 572 lr->lr_foid = zp->z_id; 573 lr->lr_mask = (uint64_t)mask_applied; 574 lr->lr_mode = (uint64_t)vap->va_mode; 575 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 576 lr->lr_uid = fuidp->z_fuid_owner; 577 else 578 lr->lr_uid = (uint64_t)vap->va_uid; 579 580 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 581 lr->lr_gid = fuidp->z_fuid_group; 582 else 583 lr->lr_gid = (uint64_t)vap->va_gid; 584 585 lr->lr_size = (uint64_t)vap->va_size; 586 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 587 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 588 start = (lr_setattr_t *)(lr + 1); 589 if (vap->va_mask & AT_XVATTR) { 590 zfs_log_xvattr((lr_attr_t *)start, xvap); 591 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 592 } 593 594 /* 595 * Now stick on domain information if any on end 596 */ 597 598 if (fuidp) 599 (void) zfs_log_fuid_domains(fuidp, start); 600 601 itx->itx_sync = (zp->z_sync_cnt != 0); 602 zil_itx_assign(zilog, itx, tx); 603 } 604 605 /* 606 * zfs_log_acl() handles TX_ACL transactions. 607 */ 608 void 609 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 610 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 611 { 612 itx_t *itx; 613 lr_acl_v0_t *lrv0; 614 lr_acl_t *lr; 615 int txtype; 616 int lrsize; 617 size_t txsize; 618 size_t aclbytes = vsecp->vsa_aclentsz; 619 620 if (zil_replaying(zilog, tx) || zp->z_unlinked) 621 return; 622 623 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? 624 TX_ACL_V0 : TX_ACL; 625 626 if (txtype == TX_ACL) 627 lrsize = sizeof (*lr); 628 else 629 lrsize = sizeof (*lrv0); 630 631 txsize = lrsize + 632 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + 633 (fuidp ? fuidp->z_domain_str_sz : 0) + 634 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); 635 636 itx = zil_itx_create(txtype, txsize); 637 638 lr = (lr_acl_t *)&itx->itx_lr; 639 lr->lr_foid = zp->z_id; 640 if (txtype == TX_ACL) { 641 lr->lr_acl_bytes = aclbytes; 642 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 643 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 644 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 645 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 646 else 647 lr->lr_acl_flags = 0; 648 } 649 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 650 651 if (txtype == TX_ACL_V0) { 652 lrv0 = (lr_acl_v0_t *)lr; 653 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 654 } else { 655 void *start = (ace_t *)(lr + 1); 656 657 bcopy(vsecp->vsa_aclentp, start, aclbytes); 658 659 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); 660 661 if (fuidp) { 662 start = zfs_log_fuid_ids(fuidp, start); 663 (void) zfs_log_fuid_domains(fuidp, start); 664 } 665 } 666 667 itx->itx_sync = (zp->z_sync_cnt != 0); 668 zil_itx_assign(zilog, itx, tx); 669 } 670