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 2009 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 #define ZFS_HANDLE_REPLAY(zilog, tx) \ 51 if (zilog->zl_replay) { \ 52 dsl_dataset_dirty(dmu_objset_ds(zilog->zl_os), tx); \ 53 zilog->zl_replayed_seq[dmu_tx_get_txg(tx) & TXG_MASK] = \ 54 zilog->zl_replaying_seq; \ 55 return; \ 56 } 57 58 /* 59 * These zfs_log_* functions must be called within a dmu tx, in one 60 * of 2 contexts depending on zilog->z_replay: 61 * 62 * Non replay mode 63 * --------------- 64 * We need to record the transaction so that if it is committed to 65 * the Intent Log then it can be replayed. An intent log transaction 66 * structure (itx_t) is allocated and all the information necessary to 67 * possibly replay the transaction is saved in it. The itx is then assigned 68 * a sequence number and inserted in the in-memory list anchored in the zilog. 69 * 70 * Replay mode 71 * ----------- 72 * We need to mark the intent log record as replayed in the log header. 73 * This is done in the same transaction as the replay so that they 74 * commit atomically. 75 */ 76 77 int 78 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) 79 { 80 int isxvattr = (vap->va_mask & AT_XVATTR); 81 switch (type) { 82 case Z_FILE: 83 if (vsecp == NULL && !isxvattr) 84 return (TX_CREATE); 85 if (vsecp && isxvattr) 86 return (TX_CREATE_ACL_ATTR); 87 if (vsecp) 88 return (TX_CREATE_ACL); 89 else 90 return (TX_CREATE_ATTR); 91 /*NOTREACHED*/ 92 case Z_DIR: 93 if (vsecp == NULL && !isxvattr) 94 return (TX_MKDIR); 95 if (vsecp && isxvattr) 96 return (TX_MKDIR_ACL_ATTR); 97 if (vsecp) 98 return (TX_MKDIR_ACL); 99 else 100 return (TX_MKDIR_ATTR); 101 case Z_XATTRDIR: 102 return (TX_MKXATTR); 103 } 104 ASSERT(0); 105 return (TX_MAX_TYPE); 106 } 107 108 /* 109 * build up the log data necessary for logging xvattr_t 110 * First lr_attr_t is initialized. following the lr_attr_t 111 * is the mapsize and attribute bitmap copied from the xvattr_t. 112 * Following the bitmap and bitmapsize two 64 bit words are reserved 113 * for the create time which may be set. Following the create time 114 * records a single 64 bit integer which has the bits to set on 115 * replay for the xvattr. 116 */ 117 static void 118 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) 119 { 120 uint32_t *bitmap; 121 uint64_t *attrs; 122 uint64_t *crtime; 123 xoptattr_t *xoap; 124 void *scanstamp; 125 int i; 126 127 xoap = xva_getxoptattr(xvap); 128 ASSERT(xoap); 129 130 lrattr->lr_attr_masksize = xvap->xva_mapsize; 131 bitmap = &lrattr->lr_attr_bitmap; 132 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { 133 *bitmap = xvap->xva_reqattrmap[i]; 134 } 135 136 /* Now pack the attributes up in a single uint64_t */ 137 attrs = (uint64_t *)bitmap; 138 crtime = attrs + 1; 139 scanstamp = (caddr_t)(crtime + 2); 140 *attrs = 0; 141 if (XVA_ISSET_REQ(xvap, XAT_READONLY)) 142 *attrs |= (xoap->xoa_readonly == 0) ? 0 : 143 XAT0_READONLY; 144 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) 145 *attrs |= (xoap->xoa_hidden == 0) ? 0 : 146 XAT0_HIDDEN; 147 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) 148 *attrs |= (xoap->xoa_system == 0) ? 0 : 149 XAT0_SYSTEM; 150 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) 151 *attrs |= (xoap->xoa_archive == 0) ? 0 : 152 XAT0_ARCHIVE; 153 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) 154 *attrs |= (xoap->xoa_immutable == 0) ? 0 : 155 XAT0_IMMUTABLE; 156 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) 157 *attrs |= (xoap->xoa_nounlink == 0) ? 0 : 158 XAT0_NOUNLINK; 159 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) 160 *attrs |= (xoap->xoa_appendonly == 0) ? 0 : 161 XAT0_APPENDONLY; 162 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) 163 *attrs |= (xoap->xoa_opaque == 0) ? 0 : 164 XAT0_APPENDONLY; 165 if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) 166 *attrs |= (xoap->xoa_nodump == 0) ? 0 : 167 XAT0_NODUMP; 168 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) 169 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : 170 XAT0_AV_QUARANTINED; 171 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) 172 *attrs |= (xoap->xoa_av_modified == 0) ? 0 : 173 XAT0_AV_MODIFIED; 174 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) 175 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); 176 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) 177 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); 178 if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) 179 *attrs |= (xoap->xoa_reparse == 0) ? 0 : 180 XAT0_REPARSE; 181 } 182 183 static void * 184 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) 185 { 186 zfs_fuid_t *zfuid; 187 uint64_t *fuidloc = start; 188 189 /* First copy in the ACE FUIDs */ 190 for (zfuid = list_head(&fuidp->z_fuids); zfuid; 191 zfuid = list_next(&fuidp->z_fuids, zfuid)) { 192 *fuidloc++ = zfuid->z_logfuid; 193 } 194 return (fuidloc); 195 } 196 197 198 static void * 199 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) 200 { 201 zfs_fuid_domain_t *zdomain; 202 203 /* now copy in the domain info, if any */ 204 if (fuidp->z_domain_str_sz != 0) { 205 for (zdomain = list_head(&fuidp->z_domains); zdomain; 206 zdomain = list_next(&fuidp->z_domains, zdomain)) { 207 bcopy((void *)zdomain->z_domain, start, 208 strlen(zdomain->z_domain) + 1); 209 start = (caddr_t)start + 210 strlen(zdomain->z_domain) + 1; 211 } 212 } 213 return (start); 214 } 215 216 /* 217 * zfs_log_create() is used to handle TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, 218 * TX_MKDIR_ATTR and TX_MKXATTR 219 * transactions. 220 * 221 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID 222 * domain information appended prior to the name. In this case the 223 * uid/gid in the log record will be a log centric FUID. 224 * 225 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that 226 * may contain attributes, ACL and optional fuid information. 227 * 228 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify 229 * and ACL and normal users/groups in the ACEs. 230 * 231 * There may be an optional xvattr attribute information similar 232 * to zfs_log_setattr. 233 * 234 * Also, after the file name "domain" strings may be appended. 235 */ 236 void 237 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 238 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, 239 zfs_fuid_info_t *fuidp, vattr_t *vap) 240 { 241 itx_t *itx; 242 uint64_t seq; 243 lr_create_t *lr; 244 lr_acl_create_t *lracl; 245 size_t aclsize; 246 size_t xvatsize = 0; 247 size_t txsize; 248 xvattr_t *xvap = (xvattr_t *)vap; 249 void *end; 250 size_t lrsize; 251 size_t namesize = strlen(name) + 1; 252 size_t fuidsz = 0; 253 254 if (zilog == NULL) 255 return; 256 257 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 258 259 /* 260 * If we have FUIDs present then add in space for 261 * domains and ACE fuid's if any. 262 */ 263 if (fuidp) { 264 fuidsz += fuidp->z_domain_str_sz; 265 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); 266 } 267 268 if (vap->va_mask & AT_XVATTR) 269 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); 270 271 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || 272 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || 273 (int)txtype == TX_MKXATTR) { 274 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; 275 lrsize = sizeof (*lr); 276 } else { 277 aclsize = (vsecp) ? vsecp->vsa_aclentsz : 0; 278 txsize = 279 sizeof (lr_acl_create_t) + namesize + fuidsz + 280 ZIL_ACE_LENGTH(aclsize) + xvatsize; 281 lrsize = sizeof (lr_acl_create_t); 282 } 283 284 itx = zil_itx_create(txtype, txsize); 285 286 lr = (lr_create_t *)&itx->itx_lr; 287 lr->lr_doid = dzp->z_id; 288 lr->lr_foid = zp->z_id; 289 lr->lr_mode = zp->z_phys->zp_mode; 290 if (!IS_EPHEMERAL(zp->z_phys->zp_uid)) { 291 lr->lr_uid = (uint64_t)zp->z_phys->zp_uid; 292 } else { 293 lr->lr_uid = fuidp->z_fuid_owner; 294 } 295 if (!IS_EPHEMERAL(zp->z_phys->zp_gid)) { 296 lr->lr_gid = (uint64_t)zp->z_phys->zp_gid; 297 } else { 298 lr->lr_gid = fuidp->z_fuid_group; 299 } 300 lr->lr_gen = zp->z_phys->zp_gen; 301 lr->lr_crtime[0] = zp->z_phys->zp_crtime[0]; 302 lr->lr_crtime[1] = zp->z_phys->zp_crtime[1]; 303 lr->lr_rdev = zp->z_phys->zp_rdev; 304 305 /* 306 * Fill in xvattr info if any 307 */ 308 if (vap->va_mask & AT_XVATTR) { 309 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); 310 end = (caddr_t)lr + lrsize + xvatsize; 311 } else { 312 end = (caddr_t)lr + lrsize; 313 } 314 315 /* Now fill in any ACL info */ 316 317 if (vsecp) { 318 lracl = (lr_acl_create_t *)&itx->itx_lr; 319 lracl->lr_aclcnt = vsecp->vsa_aclcnt; 320 lracl->lr_acl_bytes = aclsize; 321 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 322 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 323 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) 324 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 325 else 326 lracl->lr_acl_flags = 0; 327 328 bcopy(vsecp->vsa_aclentp, end, aclsize); 329 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); 330 } 331 332 /* drop in FUID info */ 333 if (fuidp) { 334 end = zfs_log_fuid_ids(fuidp, end); 335 end = zfs_log_fuid_domains(fuidp, end); 336 } 337 /* 338 * Now place file name in log record 339 */ 340 bcopy(name, end, namesize); 341 342 seq = zil_itx_assign(zilog, itx, tx); 343 dzp->z_last_itx = seq; 344 zp->z_last_itx = seq; 345 } 346 347 /* 348 * zfs_log_remove() handles both TX_REMOVE and TX_RMDIR transactions. 349 */ 350 void 351 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 352 znode_t *dzp, char *name) 353 { 354 itx_t *itx; 355 uint64_t seq; 356 lr_remove_t *lr; 357 size_t namesize = strlen(name) + 1; 358 359 if (zilog == NULL) 360 return; 361 362 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 363 364 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 365 lr = (lr_remove_t *)&itx->itx_lr; 366 lr->lr_doid = dzp->z_id; 367 bcopy(name, (char *)(lr + 1), namesize); 368 369 seq = zil_itx_assign(zilog, itx, tx); 370 dzp->z_last_itx = seq; 371 } 372 373 /* 374 * zfs_log_link() handles TX_LINK transactions. 375 */ 376 void 377 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 378 znode_t *dzp, znode_t *zp, char *name) 379 { 380 itx_t *itx; 381 uint64_t seq; 382 lr_link_t *lr; 383 size_t namesize = strlen(name) + 1; 384 385 if (zilog == NULL) 386 return; 387 388 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 389 390 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 391 lr = (lr_link_t *)&itx->itx_lr; 392 lr->lr_doid = dzp->z_id; 393 lr->lr_link_obj = zp->z_id; 394 bcopy(name, (char *)(lr + 1), namesize); 395 396 seq = zil_itx_assign(zilog, itx, tx); 397 dzp->z_last_itx = seq; 398 zp->z_last_itx = seq; 399 } 400 401 /* 402 * zfs_log_symlink() handles TX_SYMLINK transactions. 403 */ 404 void 405 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 406 znode_t *dzp, znode_t *zp, char *name, char *link) 407 { 408 itx_t *itx; 409 uint64_t seq; 410 lr_create_t *lr; 411 size_t namesize = strlen(name) + 1; 412 size_t linksize = strlen(link) + 1; 413 414 if (zilog == NULL) 415 return; 416 417 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 418 419 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); 420 lr = (lr_create_t *)&itx->itx_lr; 421 lr->lr_doid = dzp->z_id; 422 lr->lr_foid = zp->z_id; 423 lr->lr_mode = zp->z_phys->zp_mode; 424 lr->lr_uid = zp->z_phys->zp_uid; 425 lr->lr_gid = zp->z_phys->zp_gid; 426 lr->lr_gen = zp->z_phys->zp_gen; 427 lr->lr_crtime[0] = zp->z_phys->zp_crtime[0]; 428 lr->lr_crtime[1] = zp->z_phys->zp_crtime[1]; 429 bcopy(name, (char *)(lr + 1), namesize); 430 bcopy(link, (char *)(lr + 1) + namesize, linksize); 431 432 seq = zil_itx_assign(zilog, itx, tx); 433 dzp->z_last_itx = seq; 434 zp->z_last_itx = seq; 435 } 436 437 /* 438 * zfs_log_rename() handles TX_RENAME transactions. 439 */ 440 void 441 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 442 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) 443 { 444 itx_t *itx; 445 uint64_t seq; 446 lr_rename_t *lr; 447 size_t snamesize = strlen(sname) + 1; 448 size_t dnamesize = strlen(dname) + 1; 449 450 if (zilog == NULL) 451 return; 452 453 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 454 455 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); 456 lr = (lr_rename_t *)&itx->itx_lr; 457 lr->lr_sdoid = sdzp->z_id; 458 lr->lr_tdoid = tdzp->z_id; 459 bcopy(sname, (char *)(lr + 1), snamesize); 460 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); 461 462 seq = zil_itx_assign(zilog, itx, tx); 463 sdzp->z_last_itx = seq; 464 tdzp->z_last_itx = seq; 465 szp->z_last_itx = seq; 466 } 467 468 /* 469 * zfs_log_write() handles TX_WRITE transactions. 470 */ 471 ssize_t zfs_immediate_write_sz = 32768; 472 473 void 474 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 475 znode_t *zp, offset_t off, ssize_t resid, int ioflag) 476 { 477 itx_wr_state_t write_state; 478 boolean_t slogging; 479 uintptr_t fsync_cnt; 480 ssize_t immediate_write_sz; 481 482 if (zilog == NULL || zp->z_unlinked) 483 return; 484 485 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 486 487 immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) 488 ? 0 : zfs_immediate_write_sz; 489 490 slogging = spa_has_slogs(zilog->zl_spa) && 491 (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); 492 if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) 493 write_state = WR_INDIRECT; 494 else if (ioflag & (FSYNC | FDSYNC)) 495 write_state = WR_COPIED; 496 else 497 write_state = WR_NEED_COPY; 498 499 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { 500 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); 501 } 502 503 while (resid) { 504 itx_t *itx; 505 lr_write_t *lr; 506 ssize_t len; 507 508 /* 509 * If the write would overflow the largest block then split it. 510 */ 511 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) 512 len = SPA_MAXBLOCKSIZE >> 1; 513 else 514 len = resid; 515 516 itx = zil_itx_create(txtype, sizeof (*lr) + 517 (write_state == WR_COPIED ? len : 0)); 518 lr = (lr_write_t *)&itx->itx_lr; 519 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, 520 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { 521 kmem_free(itx, offsetof(itx_t, itx_lr) + 522 itx->itx_lr.lrc_reclen); 523 itx = zil_itx_create(txtype, sizeof (*lr)); 524 lr = (lr_write_t *)&itx->itx_lr; 525 write_state = WR_NEED_COPY; 526 } 527 528 itx->itx_wr_state = write_state; 529 if (write_state == WR_NEED_COPY) 530 itx->itx_sod += len; 531 lr->lr_foid = zp->z_id; 532 lr->lr_offset = off; 533 lr->lr_length = len; 534 lr->lr_blkoff = 0; 535 BP_ZERO(&lr->lr_blkptr); 536 537 itx->itx_private = zp->z_zfsvfs; 538 539 if ((zp->z_sync_cnt != 0) || (fsync_cnt != 0) || 540 (ioflag & (FSYNC | FDSYNC))) 541 itx->itx_sync = B_TRUE; 542 else 543 itx->itx_sync = B_FALSE; 544 545 zp->z_last_itx = zil_itx_assign(zilog, itx, tx); 546 547 off += len; 548 resid -= len; 549 } 550 } 551 552 /* 553 * zfs_log_truncate() handles TX_TRUNCATE transactions. 554 */ 555 void 556 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 557 znode_t *zp, uint64_t off, uint64_t len) 558 { 559 itx_t *itx; 560 uint64_t seq; 561 lr_truncate_t *lr; 562 563 if (zilog == NULL || zp->z_unlinked) 564 return; 565 566 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 567 568 itx = zil_itx_create(txtype, sizeof (*lr)); 569 lr = (lr_truncate_t *)&itx->itx_lr; 570 lr->lr_foid = zp->z_id; 571 lr->lr_offset = off; 572 lr->lr_length = len; 573 574 itx->itx_sync = (zp->z_sync_cnt != 0); 575 seq = zil_itx_assign(zilog, itx, tx); 576 zp->z_last_itx = seq; 577 } 578 579 /* 580 * zfs_log_setattr() handles TX_SETATTR transactions. 581 */ 582 void 583 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 584 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 585 { 586 itx_t *itx; 587 uint64_t seq; 588 lr_setattr_t *lr; 589 xvattr_t *xvap = (xvattr_t *)vap; 590 size_t recsize = sizeof (lr_setattr_t); 591 void *start; 592 593 594 if (zilog == NULL || zp->z_unlinked) 595 return; 596 597 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 598 599 /* 600 * If XVATTR set, then log record size needs to allow 601 * for lr_attr_t + xvattr mask, mapsize and create time 602 * plus actual attribute values 603 */ 604 if (vap->va_mask & AT_XVATTR) 605 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 606 607 if (fuidp) 608 recsize += fuidp->z_domain_str_sz; 609 610 itx = zil_itx_create(txtype, recsize); 611 lr = (lr_setattr_t *)&itx->itx_lr; 612 lr->lr_foid = zp->z_id; 613 lr->lr_mask = (uint64_t)mask_applied; 614 lr->lr_mode = (uint64_t)vap->va_mode; 615 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 616 lr->lr_uid = fuidp->z_fuid_owner; 617 else 618 lr->lr_uid = (uint64_t)vap->va_uid; 619 620 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 621 lr->lr_gid = fuidp->z_fuid_group; 622 else 623 lr->lr_gid = (uint64_t)vap->va_gid; 624 625 lr->lr_size = (uint64_t)vap->va_size; 626 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 627 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 628 start = (lr_setattr_t *)(lr + 1); 629 if (vap->va_mask & AT_XVATTR) { 630 zfs_log_xvattr((lr_attr_t *)start, xvap); 631 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 632 } 633 634 /* 635 * Now stick on domain information if any on end 636 */ 637 638 if (fuidp) 639 (void) zfs_log_fuid_domains(fuidp, start); 640 641 itx->itx_sync = (zp->z_sync_cnt != 0); 642 seq = zil_itx_assign(zilog, itx, tx); 643 zp->z_last_itx = seq; 644 } 645 646 /* 647 * zfs_log_acl() handles TX_ACL transactions. 648 */ 649 void 650 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 651 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 652 { 653 itx_t *itx; 654 uint64_t seq; 655 lr_acl_v0_t *lrv0; 656 lr_acl_t *lr; 657 int txtype; 658 int lrsize; 659 size_t txsize; 660 size_t aclbytes = vsecp->vsa_aclentsz; 661 662 if (zilog == NULL || zp->z_unlinked) 663 return; 664 665 ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ 666 667 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? 668 TX_ACL_V0 : TX_ACL; 669 670 if (txtype == TX_ACL) 671 lrsize = sizeof (*lr); 672 else 673 lrsize = sizeof (*lrv0); 674 675 txsize = lrsize + 676 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + 677 (fuidp ? fuidp->z_domain_str_sz : 0) + 678 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); 679 680 itx = zil_itx_create(txtype, txsize); 681 682 lr = (lr_acl_t *)&itx->itx_lr; 683 lr->lr_foid = zp->z_id; 684 if (txtype == TX_ACL) { 685 lr->lr_acl_bytes = aclbytes; 686 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 687 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 688 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 689 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 690 else 691 lr->lr_acl_flags = 0; 692 } 693 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 694 695 if (txtype == TX_ACL_V0) { 696 lrv0 = (lr_acl_v0_t *)lr; 697 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 698 } else { 699 void *start = (ace_t *)(lr + 1); 700 701 bcopy(vsecp->vsa_aclentp, start, aclbytes); 702 703 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); 704 705 if (fuidp) { 706 start = zfs_log_fuid_ids(fuidp, start); 707 (void) zfs_log_fuid_domains(fuidp, start); 708 } 709 } 710 711 itx->itx_sync = (zp->z_sync_cnt != 0); 712 seq = zil_itx_assign(zilog, itx, tx); 713 zp->z_last_itx = seq; 714 } 715