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 2010 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <sys/types.h> 27 #include <sys/param.h> 28 #include <sys/systm.h> 29 #include <sys/sysmacros.h> 30 #include <sys/cmn_err.h> 31 #include <sys/kmem.h> 32 #include <sys/thread.h> 33 #include <sys/file.h> 34 #include <sys/vfs.h> 35 #include <sys/zfs_znode.h> 36 #include <sys/zfs_dir.h> 37 #include <sys/zil.h> 38 #include <sys/zil_impl.h> 39 #include <sys/byteorder.h> 40 #include <sys/policy.h> 41 #include <sys/stat.h> 42 #include <sys/mode.h> 43 #include <sys/acl.h> 44 #include <sys/dmu.h> 45 #include <sys/spa.h> 46 #include <sys/zfs_fuid.h> 47 #include <sys/ddi.h> 48 #include <sys/dsl_dataset.h> 49 50 /* 51 * These zfs_log_* functions must be called within a dmu tx, in one 52 * of 2 contexts depending on zilog->z_replay: 53 * 54 * Non replay mode 55 * --------------- 56 * We need to record the transaction so that if it is committed to 57 * the Intent Log then it can be replayed. An intent log transaction 58 * structure (itx_t) is allocated and all the information necessary to 59 * possibly replay the transaction is saved in it. The itx is then assigned 60 * a sequence number and inserted in the in-memory list anchored in the zilog. 61 * 62 * Replay mode 63 * ----------- 64 * We need to mark the intent log record as replayed in the log header. 65 * This is done in the same transaction as the replay so that they 66 * commit atomically. 67 */ 68 69 int 70 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) 71 { 72 int isxvattr = (vap->va_mask & AT_XVATTR); 73 switch (type) { 74 case Z_FILE: 75 if (vsecp == NULL && !isxvattr) 76 return (TX_CREATE); 77 if (vsecp && isxvattr) 78 return (TX_CREATE_ACL_ATTR); 79 if (vsecp) 80 return (TX_CREATE_ACL); 81 else 82 return (TX_CREATE_ATTR); 83 /*NOTREACHED*/ 84 case Z_DIR: 85 if (vsecp == NULL && !isxvattr) 86 return (TX_MKDIR); 87 if (vsecp && isxvattr) 88 return (TX_MKDIR_ACL_ATTR); 89 if (vsecp) 90 return (TX_MKDIR_ACL); 91 else 92 return (TX_MKDIR_ATTR); 93 case Z_XATTRDIR: 94 return (TX_MKXATTR); 95 } 96 ASSERT(0); 97 return (TX_MAX_TYPE); 98 } 99 100 /* 101 * build up the log data necessary for logging xvattr_t 102 * First lr_attr_t is initialized. following the lr_attr_t 103 * is the mapsize and attribute bitmap copied from the xvattr_t. 104 * Following the bitmap and bitmapsize two 64 bit words are reserved 105 * for the create time which may be set. Following the create time 106 * records a single 64 bit integer which has the bits to set on 107 * replay for the xvattr. 108 */ 109 static void 110 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) 111 { 112 uint32_t *bitmap; 113 uint64_t *attrs; 114 uint64_t *crtime; 115 xoptattr_t *xoap; 116 void *scanstamp; 117 int i; 118 119 xoap = xva_getxoptattr(xvap); 120 ASSERT(xoap); 121 122 lrattr->lr_attr_masksize = xvap->xva_mapsize; 123 bitmap = &lrattr->lr_attr_bitmap; 124 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { 125 *bitmap = xvap->xva_reqattrmap[i]; 126 } 127 128 /* Now pack the attributes up in a single uint64_t */ 129 attrs = (uint64_t *)bitmap; 130 crtime = attrs + 1; 131 scanstamp = (caddr_t)(crtime + 2); 132 *attrs = 0; 133 if (XVA_ISSET_REQ(xvap, XAT_READONLY)) 134 *attrs |= (xoap->xoa_readonly == 0) ? 0 : 135 XAT0_READONLY; 136 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) 137 *attrs |= (xoap->xoa_hidden == 0) ? 0 : 138 XAT0_HIDDEN; 139 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) 140 *attrs |= (xoap->xoa_system == 0) ? 0 : 141 XAT0_SYSTEM; 142 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) 143 *attrs |= (xoap->xoa_archive == 0) ? 0 : 144 XAT0_ARCHIVE; 145 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) 146 *attrs |= (xoap->xoa_immutable == 0) ? 0 : 147 XAT0_IMMUTABLE; 148 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) 149 *attrs |= (xoap->xoa_nounlink == 0) ? 0 : 150 XAT0_NOUNLINK; 151 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) 152 *attrs |= (xoap->xoa_appendonly == 0) ? 0 : 153 XAT0_APPENDONLY; 154 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) 155 *attrs |= (xoap->xoa_opaque == 0) ? 0 : 156 XAT0_APPENDONLY; 157 if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) 158 *attrs |= (xoap->xoa_nodump == 0) ? 0 : 159 XAT0_NODUMP; 160 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) 161 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : 162 XAT0_AV_QUARANTINED; 163 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) 164 *attrs |= (xoap->xoa_av_modified == 0) ? 0 : 165 XAT0_AV_MODIFIED; 166 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) 167 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); 168 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) 169 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); 170 if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) 171 *attrs |= (xoap->xoa_reparse == 0) ? 0 : 172 XAT0_REPARSE; 173 } 174 175 static void * 176 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) 177 { 178 zfs_fuid_t *zfuid; 179 uint64_t *fuidloc = start; 180 181 /* First copy in the ACE FUIDs */ 182 for (zfuid = list_head(&fuidp->z_fuids); zfuid; 183 zfuid = list_next(&fuidp->z_fuids, zfuid)) { 184 *fuidloc++ = zfuid->z_logfuid; 185 } 186 return (fuidloc); 187 } 188 189 190 static void * 191 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) 192 { 193 zfs_fuid_domain_t *zdomain; 194 195 /* now copy in the domain info, if any */ 196 if (fuidp->z_domain_str_sz != 0) { 197 for (zdomain = list_head(&fuidp->z_domains); zdomain; 198 zdomain = list_next(&fuidp->z_domains, zdomain)) { 199 bcopy((void *)zdomain->z_domain, start, 200 strlen(zdomain->z_domain) + 1); 201 start = (caddr_t)start + 202 strlen(zdomain->z_domain) + 1; 203 } 204 } 205 return (start); 206 } 207 208 /* 209 * zfs_log_create() is used to handle TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, 210 * TX_MKDIR_ATTR and TX_MKXATTR 211 * transactions. 212 * 213 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID 214 * domain information appended prior to the name. In this case the 215 * uid/gid in the log record will be a log centric FUID. 216 * 217 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that 218 * may contain attributes, ACL and optional fuid information. 219 * 220 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify 221 * and ACL and normal users/groups in the ACEs. 222 * 223 * There may be an optional xvattr attribute information similar 224 * to zfs_log_setattr. 225 * 226 * Also, after the file name "domain" strings may be appended. 227 */ 228 void 229 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 230 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, 231 zfs_fuid_info_t *fuidp, vattr_t *vap) 232 { 233 itx_t *itx; 234 uint64_t seq; 235 lr_create_t *lr; 236 lr_acl_create_t *lracl; 237 size_t aclsize; 238 size_t xvatsize = 0; 239 size_t txsize; 240 xvattr_t *xvap = (xvattr_t *)vap; 241 void *end; 242 size_t lrsize; 243 size_t namesize = strlen(name) + 1; 244 size_t fuidsz = 0; 245 246 if (zil_replaying(zilog, tx)) 247 return; 248 249 /* 250 * If we have FUIDs present then add in space for 251 * domains and ACE fuid's if any. 252 */ 253 if (fuidp) { 254 fuidsz += fuidp->z_domain_str_sz; 255 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); 256 } 257 258 if (vap->va_mask & AT_XVATTR) 259 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); 260 261 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || 262 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || 263 (int)txtype == TX_MKXATTR) { 264 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; 265 lrsize = sizeof (*lr); 266 } else { 267 aclsize = (vsecp) ? vsecp->vsa_aclentsz : 0; 268 txsize = 269 sizeof (lr_acl_create_t) + namesize + fuidsz + 270 ZIL_ACE_LENGTH(aclsize) + xvatsize; 271 lrsize = sizeof (lr_acl_create_t); 272 } 273 274 itx = zil_itx_create(txtype, txsize); 275 276 lr = (lr_create_t *)&itx->itx_lr; 277 lr->lr_doid = dzp->z_id; 278 lr->lr_foid = zp->z_id; 279 lr->lr_mode = zp->z_mode; 280 if (!IS_EPHEMERAL(zp->z_uid)) { 281 lr->lr_uid = (uint64_t)zp->z_uid; 282 } else { 283 lr->lr_uid = fuidp->z_fuid_owner; 284 } 285 if (!IS_EPHEMERAL(zp->z_gid)) { 286 lr->lr_gid = (uint64_t)zp->z_gid; 287 } else { 288 lr->lr_gid = fuidp->z_fuid_group; 289 } 290 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 291 sizeof (uint64_t)); 292 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 293 lr->lr_crtime, sizeof (uint64_t) * 2); 294 295 if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev, 296 sizeof (lr->lr_rdev)) != 0) 297 lr->lr_rdev = 0; 298 299 /* 300 * Fill in xvattr info if any 301 */ 302 if (vap->va_mask & AT_XVATTR) { 303 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); 304 end = (caddr_t)lr + lrsize + xvatsize; 305 } else { 306 end = (caddr_t)lr + lrsize; 307 } 308 309 /* Now fill in any ACL info */ 310 311 if (vsecp) { 312 lracl = (lr_acl_create_t *)&itx->itx_lr; 313 lracl->lr_aclcnt = vsecp->vsa_aclcnt; 314 lracl->lr_acl_bytes = aclsize; 315 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 316 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 317 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) 318 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 319 else 320 lracl->lr_acl_flags = 0; 321 322 bcopy(vsecp->vsa_aclentp, end, aclsize); 323 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); 324 } 325 326 /* drop in FUID info */ 327 if (fuidp) { 328 end = zfs_log_fuid_ids(fuidp, end); 329 end = zfs_log_fuid_domains(fuidp, end); 330 } 331 /* 332 * Now place file name in log record 333 */ 334 bcopy(name, end, namesize); 335 336 seq = zil_itx_assign(zilog, itx, tx); 337 dzp->z_last_itx = seq; 338 zp->z_last_itx = seq; 339 } 340 341 /* 342 * zfs_log_remove() 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) 347 { 348 itx_t *itx; 349 uint64_t seq; 350 lr_remove_t *lr; 351 size_t namesize = strlen(name) + 1; 352 353 if (zil_replaying(zilog, tx)) 354 return; 355 356 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 357 lr = (lr_remove_t *)&itx->itx_lr; 358 lr->lr_doid = dzp->z_id; 359 bcopy(name, (char *)(lr + 1), namesize); 360 361 seq = zil_itx_assign(zilog, itx, tx); 362 dzp->z_last_itx = seq; 363 } 364 365 /* 366 * zfs_log_link() 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 uint64_t seq; 374 lr_link_t *lr; 375 size_t namesize = strlen(name) + 1; 376 377 if (zil_replaying(zilog, tx)) 378 return; 379 380 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 381 lr = (lr_link_t *)&itx->itx_lr; 382 lr->lr_doid = dzp->z_id; 383 lr->lr_link_obj = zp->z_id; 384 bcopy(name, (char *)(lr + 1), namesize); 385 386 seq = zil_itx_assign(zilog, itx, tx); 387 dzp->z_last_itx = seq; 388 zp->z_last_itx = seq; 389 } 390 391 /* 392 * zfs_log_symlink() handles TX_SYMLINK transactions. 393 */ 394 void 395 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 396 znode_t *dzp, znode_t *zp, char *name, char *link) 397 { 398 itx_t *itx; 399 uint64_t seq; 400 lr_create_t *lr; 401 size_t namesize = strlen(name) + 1; 402 size_t linksize = strlen(link) + 1; 403 404 if (zil_replaying(zilog, tx)) 405 return; 406 407 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); 408 lr = (lr_create_t *)&itx->itx_lr; 409 lr->lr_doid = dzp->z_id; 410 lr->lr_foid = zp->z_id; 411 lr->lr_uid = zp->z_uid; 412 lr->lr_gid = zp->z_gid; 413 lr->lr_mode = zp->z_mode; 414 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 415 sizeof (uint64_t)); 416 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 417 lr->lr_crtime, sizeof (uint64_t) * 2); 418 bcopy(name, (char *)(lr + 1), namesize); 419 bcopy(link, (char *)(lr + 1) + namesize, linksize); 420 421 seq = zil_itx_assign(zilog, itx, tx); 422 dzp->z_last_itx = seq; 423 zp->z_last_itx = seq; 424 } 425 426 /* 427 * zfs_log_rename() handles TX_RENAME transactions. 428 */ 429 void 430 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 431 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) 432 { 433 itx_t *itx; 434 uint64_t seq; 435 lr_rename_t *lr; 436 size_t snamesize = strlen(sname) + 1; 437 size_t dnamesize = strlen(dname) + 1; 438 439 if (zil_replaying(zilog, tx)) 440 return; 441 442 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); 443 lr = (lr_rename_t *)&itx->itx_lr; 444 lr->lr_sdoid = sdzp->z_id; 445 lr->lr_tdoid = tdzp->z_id; 446 bcopy(sname, (char *)(lr + 1), snamesize); 447 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); 448 449 seq = zil_itx_assign(zilog, itx, tx); 450 sdzp->z_last_itx = seq; 451 tdzp->z_last_itx = seq; 452 szp->z_last_itx = seq; 453 } 454 455 /* 456 * zfs_log_write() handles TX_WRITE transactions. 457 */ 458 ssize_t zfs_immediate_write_sz = 32768; 459 460 void 461 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 462 znode_t *zp, offset_t off, ssize_t resid, int ioflag) 463 { 464 itx_wr_state_t write_state; 465 boolean_t slogging; 466 uintptr_t fsync_cnt; 467 ssize_t immediate_write_sz; 468 469 if (zil_replaying(zilog, tx) || zp->z_unlinked) 470 return; 471 472 immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) 473 ? 0 : zfs_immediate_write_sz; 474 475 slogging = spa_has_slogs(zilog->zl_spa) && 476 (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); 477 if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) 478 write_state = WR_INDIRECT; 479 else if (ioflag & (FSYNC | FDSYNC)) 480 write_state = WR_COPIED; 481 else 482 write_state = WR_NEED_COPY; 483 484 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { 485 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); 486 } 487 488 while (resid) { 489 itx_t *itx; 490 lr_write_t *lr; 491 ssize_t len; 492 493 /* 494 * If the write would overflow the largest block then split it. 495 */ 496 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) 497 len = SPA_MAXBLOCKSIZE >> 1; 498 else 499 len = resid; 500 501 itx = zil_itx_create(txtype, sizeof (*lr) + 502 (write_state == WR_COPIED ? len : 0)); 503 lr = (lr_write_t *)&itx->itx_lr; 504 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, 505 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { 506 zil_itx_destroy(itx); 507 itx = zil_itx_create(txtype, sizeof (*lr)); 508 lr = (lr_write_t *)&itx->itx_lr; 509 write_state = WR_NEED_COPY; 510 } 511 512 itx->itx_wr_state = write_state; 513 if (write_state == WR_NEED_COPY) 514 itx->itx_sod += len; 515 lr->lr_foid = zp->z_id; 516 lr->lr_offset = off; 517 lr->lr_length = len; 518 lr->lr_blkoff = 0; 519 BP_ZERO(&lr->lr_blkptr); 520 521 itx->itx_private = zp->z_zfsvfs; 522 523 if ((zp->z_sync_cnt != 0) || (fsync_cnt != 0) || 524 (ioflag & (FSYNC | FDSYNC))) 525 itx->itx_sync = B_TRUE; 526 else 527 itx->itx_sync = B_FALSE; 528 529 zp->z_last_itx = zil_itx_assign(zilog, itx, tx); 530 531 off += len; 532 resid -= len; 533 } 534 } 535 536 /* 537 * zfs_log_truncate() handles TX_TRUNCATE transactions. 538 */ 539 void 540 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 541 znode_t *zp, uint64_t off, uint64_t len) 542 { 543 itx_t *itx; 544 uint64_t seq; 545 lr_truncate_t *lr; 546 547 if (zil_replaying(zilog, tx) || zp->z_unlinked) 548 return; 549 550 itx = zil_itx_create(txtype, sizeof (*lr)); 551 lr = (lr_truncate_t *)&itx->itx_lr; 552 lr->lr_foid = zp->z_id; 553 lr->lr_offset = off; 554 lr->lr_length = len; 555 556 itx->itx_sync = (zp->z_sync_cnt != 0); 557 seq = zil_itx_assign(zilog, itx, tx); 558 zp->z_last_itx = seq; 559 } 560 561 /* 562 * zfs_log_setattr() handles TX_SETATTR transactions. 563 */ 564 void 565 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 566 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 567 { 568 itx_t *itx; 569 uint64_t seq; 570 lr_setattr_t *lr; 571 xvattr_t *xvap = (xvattr_t *)vap; 572 size_t recsize = sizeof (lr_setattr_t); 573 void *start; 574 575 if (zil_replaying(zilog, tx) || zp->z_unlinked) 576 return; 577 578 /* 579 * If XVATTR set, then log record size needs to allow 580 * for lr_attr_t + xvattr mask, mapsize and create time 581 * plus actual attribute values 582 */ 583 if (vap->va_mask & AT_XVATTR) 584 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 585 586 if (fuidp) 587 recsize += fuidp->z_domain_str_sz; 588 589 itx = zil_itx_create(txtype, recsize); 590 lr = (lr_setattr_t *)&itx->itx_lr; 591 lr->lr_foid = zp->z_id; 592 lr->lr_mask = (uint64_t)mask_applied; 593 lr->lr_mode = (uint64_t)vap->va_mode; 594 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 595 lr->lr_uid = fuidp->z_fuid_owner; 596 else 597 lr->lr_uid = (uint64_t)vap->va_uid; 598 599 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 600 lr->lr_gid = fuidp->z_fuid_group; 601 else 602 lr->lr_gid = (uint64_t)vap->va_gid; 603 604 lr->lr_size = (uint64_t)vap->va_size; 605 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 606 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 607 start = (lr_setattr_t *)(lr + 1); 608 if (vap->va_mask & AT_XVATTR) { 609 zfs_log_xvattr((lr_attr_t *)start, xvap); 610 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 611 } 612 613 /* 614 * Now stick on domain information if any on end 615 */ 616 617 if (fuidp) 618 (void) zfs_log_fuid_domains(fuidp, start); 619 620 itx->itx_sync = (zp->z_sync_cnt != 0); 621 seq = zil_itx_assign(zilog, itx, tx); 622 zp->z_last_itx = seq; 623 } 624 625 /* 626 * zfs_log_acl() handles TX_ACL transactions. 627 */ 628 void 629 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 630 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 631 { 632 itx_t *itx; 633 uint64_t seq; 634 lr_acl_v0_t *lrv0; 635 lr_acl_t *lr; 636 int txtype; 637 int lrsize; 638 size_t txsize; 639 size_t aclbytes = vsecp->vsa_aclentsz; 640 641 if (zil_replaying(zilog, tx) || zp->z_unlinked) 642 return; 643 644 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? 645 TX_ACL_V0 : TX_ACL; 646 647 if (txtype == TX_ACL) 648 lrsize = sizeof (*lr); 649 else 650 lrsize = sizeof (*lrv0); 651 652 txsize = lrsize + 653 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + 654 (fuidp ? fuidp->z_domain_str_sz : 0) + 655 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); 656 657 itx = zil_itx_create(txtype, txsize); 658 659 lr = (lr_acl_t *)&itx->itx_lr; 660 lr->lr_foid = zp->z_id; 661 if (txtype == TX_ACL) { 662 lr->lr_acl_bytes = aclbytes; 663 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 664 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 665 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 666 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 667 else 668 lr->lr_acl_flags = 0; 669 } 670 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 671 672 if (txtype == TX_ACL_V0) { 673 lrv0 = (lr_acl_v0_t *)lr; 674 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 675 } else { 676 void *start = (ace_t *)(lr + 1); 677 678 bcopy(vsecp->vsa_aclentp, start, aclbytes); 679 680 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); 681 682 if (fuidp) { 683 start = zfs_log_fuid_ids(fuidp, start); 684 (void) zfs_log_fuid_domains(fuidp, start); 685 } 686 } 687 688 itx->itx_sync = (zp->z_sync_cnt != 0); 689 seq = zil_itx_assign(zilog, itx, tx); 690 zp->z_last_itx = seq; 691 } 692