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 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/types.h> 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/sysmacros.h> 32 #include <sys/cmn_err.h> 33 #include <sys/kmem.h> 34 #include <sys/thread.h> 35 #include <sys/file.h> 36 #include <sys/vfs.h> 37 #include <sys/zfs_znode.h> 38 #include <sys/zfs_dir.h> 39 #include <sys/zil.h> 40 #include <sys/zil_impl.h> 41 #include <sys/byteorder.h> 42 #include <sys/policy.h> 43 #include <sys/stat.h> 44 #include <sys/mode.h> 45 #include <sys/acl.h> 46 #include <sys/dmu.h> 47 #include <sys/spa.h> 48 #include <sys/zfs_fuid.h> 49 #include <sys/ddi.h> 50 51 /* 52 * All the functions in this file are used to construct the log entries 53 * to record transactions. They allocate * an intent log transaction 54 * structure (itx_t) and save within it all the information necessary to 55 * possibly replay the transaction. The itx is then assigned a sequence 56 * number and inserted in the in-memory list anchored in the zilog. 57 */ 58 59 int 60 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) 61 { 62 int isxvattr = (vap->va_mask & AT_XVATTR); 63 switch (type) { 64 case Z_FILE: 65 if (vsecp == NULL && !isxvattr) 66 return (TX_CREATE); 67 if (vsecp && isxvattr) 68 return (TX_CREATE_ACL_ATTR); 69 if (vsecp) 70 return (TX_CREATE_ACL); 71 else 72 return (TX_CREATE_ATTR); 73 /*NOTREACHED*/ 74 case Z_DIR: 75 if (vsecp == NULL && !isxvattr) 76 return (TX_MKDIR); 77 if (vsecp && isxvattr) 78 return (TX_MKDIR_ACL_ATTR); 79 if (vsecp) 80 return (TX_MKDIR_ACL); 81 else 82 return (TX_MKDIR_ATTR); 83 case Z_XATTRDIR: 84 return (TX_MKXATTR); 85 } 86 ASSERT(0); 87 return (TX_MAX_TYPE); 88 } 89 90 /* 91 * build up the log data necessary for logging xvattr_t 92 * First lr_attr_t is initialized. following the lr_attr_t 93 * is the mapsize and attribute bitmap copied from the xvattr_t. 94 * Following the bitmap and bitmapsize two 64 bit words are reserved 95 * for the create time which may be set. Following the create time 96 * records a single 64 bit integer which has the bits to set on 97 * replay for the xvattr. 98 */ 99 static void 100 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) 101 { 102 uint32_t *bitmap; 103 uint64_t *attrs; 104 uint64_t *crtime; 105 xoptattr_t *xoap; 106 void *scanstamp; 107 int i; 108 109 xoap = xva_getxoptattr(xvap); 110 ASSERT(xoap); 111 112 lrattr->lr_attr_masksize = xvap->xva_mapsize; 113 bitmap = &lrattr->lr_attr_bitmap; 114 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { 115 *bitmap = xvap->xva_reqattrmap[i]; 116 } 117 118 /* Now pack the attributes up in a single uint64_t */ 119 attrs = (uint64_t *)bitmap; 120 crtime = attrs + 1; 121 scanstamp = (caddr_t)(crtime + 2); 122 *attrs = 0; 123 if (XVA_ISSET_REQ(xvap, XAT_READONLY)) 124 *attrs |= (xoap->xoa_readonly == 0) ? 0 : 125 XAT0_READONLY; 126 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) 127 *attrs |= (xoap->xoa_hidden == 0) ? 0 : 128 XAT0_HIDDEN; 129 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) 130 *attrs |= (xoap->xoa_system == 0) ? 0 : 131 XAT0_SYSTEM; 132 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) 133 *attrs |= (xoap->xoa_archive == 0) ? 0 : 134 XAT0_ARCHIVE; 135 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) 136 *attrs |= (xoap->xoa_immutable == 0) ? 0 : 137 XAT0_IMMUTABLE; 138 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) 139 *attrs |= (xoap->xoa_nounlink == 0) ? 0 : 140 XAT0_NOUNLINK; 141 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) 142 *attrs |= (xoap->xoa_appendonly == 0) ? 0 : 143 XAT0_APPENDONLY; 144 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) 145 *attrs |= (xoap->xoa_opaque == 0) ? 0 : 146 XAT0_APPENDONLY; 147 if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) 148 *attrs |= (xoap->xoa_nodump == 0) ? 0 : 149 XAT0_NODUMP; 150 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) 151 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : 152 XAT0_AV_QUARANTINED; 153 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) 154 *attrs |= (xoap->xoa_av_modified == 0) ? 0 : 155 XAT0_AV_MODIFIED; 156 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) 157 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); 158 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) 159 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); 160 } 161 162 static void * 163 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) 164 { 165 zfs_fuid_t *zfuid; 166 uint64_t *fuidloc = start; 167 168 /* First copy in the ACE FUIDs */ 169 for (zfuid = list_head(&fuidp->z_fuids); zfuid; 170 zfuid = list_next(&fuidp->z_fuids, zfuid)) { 171 *fuidloc++ = zfuid->z_logfuid; 172 } 173 return (fuidloc); 174 } 175 176 177 static void * 178 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) 179 { 180 zfs_fuid_domain_t *zdomain; 181 182 /* now copy in the domain info, if any */ 183 if (fuidp->z_domain_str_sz != 0) { 184 for (zdomain = list_head(&fuidp->z_domains); zdomain; 185 zdomain = list_next(&fuidp->z_domains, zdomain)) { 186 bcopy((void *)zdomain->z_domain, start, 187 strlen(zdomain->z_domain) + 1); 188 start = (caddr_t)start + 189 strlen(zdomain->z_domain) + 1; 190 } 191 } 192 return (start); 193 } 194 195 /* 196 * zfs_log_create() is used to handle TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, 197 * TX_MKDIR_ATTR and TX_MKXATTR 198 * transactions. 199 * 200 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID 201 * domain information appended prior to the name. In this case the 202 * uid/gid in the log record will be a log centric FUID. 203 * 204 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that 205 * may contain attributes, ACL and optional fuid information. 206 * 207 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify 208 * and ACL and normal users/groups in the ACEs. 209 * 210 * There may be an optional xvattr attribute information similar 211 * to zfs_log_setattr. 212 * 213 * Also, after the file name "domain" strings may be appended. 214 */ 215 void 216 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 217 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, 218 zfs_fuid_info_t *fuidp, vattr_t *vap) 219 { 220 itx_t *itx; 221 uint64_t seq; 222 lr_create_t *lr; 223 lr_acl_create_t *lracl; 224 size_t aclsize; 225 size_t xvatsize = 0; 226 size_t txsize; 227 xvattr_t *xvap = (xvattr_t *)vap; 228 void *end; 229 size_t lrsize; 230 231 size_t namesize = strlen(name) + 1; 232 size_t fuidsz = 0; 233 234 if (zilog == NULL) 235 return; 236 237 /* 238 * If we have FUIDs present then add in space for 239 * domains and ACE fuid's if any. 240 */ 241 if (fuidp) { 242 fuidsz += fuidp->z_domain_str_sz; 243 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); 244 } 245 246 if (vap->va_mask & AT_XVATTR) 247 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); 248 249 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || 250 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || 251 (int)txtype == TX_MKXATTR) { 252 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; 253 lrsize = sizeof (*lr); 254 } else { 255 aclsize = (vsecp) ? vsecp->vsa_aclentsz : 0; 256 txsize = 257 sizeof (lr_acl_create_t) + namesize + fuidsz + 258 aclsize + xvatsize; 259 lrsize = sizeof (lr_acl_create_t); 260 } 261 262 itx = zil_itx_create(txtype, txsize); 263 264 lr = (lr_create_t *)&itx->itx_lr; 265 lr->lr_doid = dzp->z_id; 266 lr->lr_foid = zp->z_id; 267 lr->lr_mode = zp->z_phys->zp_mode; 268 if (!IS_EPHEMERAL(zp->z_phys->zp_uid)) { 269 lr->lr_uid = (uint64_t)zp->z_phys->zp_uid; 270 } else { 271 lr->lr_uid = fuidp->z_fuid_owner; 272 } 273 if (!IS_EPHEMERAL(zp->z_phys->zp_gid)) { 274 lr->lr_gid = (uint64_t)zp->z_phys->zp_gid; 275 } else { 276 lr->lr_gid = fuidp->z_fuid_group; 277 } 278 lr->lr_gen = zp->z_phys->zp_gen; 279 lr->lr_crtime[0] = zp->z_phys->zp_crtime[0]; 280 lr->lr_crtime[1] = zp->z_phys->zp_crtime[1]; 281 lr->lr_rdev = zp->z_phys->zp_rdev; 282 283 /* 284 * Fill in xvattr info if any 285 */ 286 if (vap->va_mask & AT_XVATTR) { 287 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); 288 end = (caddr_t)lr + lrsize + xvatsize; 289 } else { 290 end = (caddr_t)lr + lrsize; 291 } 292 293 /* Now fill in any ACL info */ 294 295 if (vsecp) { 296 lracl = (lr_acl_create_t *)&itx->itx_lr; 297 lracl->lr_aclcnt = vsecp->vsa_aclcnt; 298 lracl->lr_acl_bytes = aclsize; 299 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 300 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 301 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) 302 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 303 else 304 lracl->lr_acl_flags = 0; 305 306 bcopy(vsecp->vsa_aclentp, end, aclsize); 307 end = (caddr_t)end + aclsize; 308 } 309 310 /* drop in FUID info */ 311 if (fuidp) { 312 end = zfs_log_fuid_ids(fuidp, end); 313 end = zfs_log_fuid_domains(fuidp, end); 314 } 315 /* 316 * Now place file name in log record 317 */ 318 bcopy(name, end, namesize); 319 320 seq = zil_itx_assign(zilog, itx, tx); 321 dzp->z_last_itx = seq; 322 zp->z_last_itx = seq; 323 } 324 325 /* 326 * zfs_log_remove() handles both TX_REMOVE and TX_RMDIR transactions. 327 */ 328 void 329 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 330 znode_t *dzp, char *name) 331 { 332 itx_t *itx; 333 uint64_t seq; 334 lr_remove_t *lr; 335 size_t namesize = strlen(name) + 1; 336 337 if (zilog == NULL) 338 return; 339 340 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 341 lr = (lr_remove_t *)&itx->itx_lr; 342 lr->lr_doid = dzp->z_id; 343 bcopy(name, (char *)(lr + 1), namesize); 344 345 seq = zil_itx_assign(zilog, itx, tx); 346 dzp->z_last_itx = seq; 347 } 348 349 /* 350 * zfs_log_link() handles TX_LINK transactions. 351 */ 352 void 353 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 354 znode_t *dzp, znode_t *zp, char *name) 355 { 356 itx_t *itx; 357 uint64_t seq; 358 lr_link_t *lr; 359 size_t namesize = strlen(name) + 1; 360 361 if (zilog == NULL) 362 return; 363 364 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 365 lr = (lr_link_t *)&itx->itx_lr; 366 lr->lr_doid = dzp->z_id; 367 lr->lr_link_obj = zp->z_id; 368 bcopy(name, (char *)(lr + 1), namesize); 369 370 seq = zil_itx_assign(zilog, itx, tx); 371 dzp->z_last_itx = seq; 372 zp->z_last_itx = seq; 373 } 374 375 /* 376 * zfs_log_symlink() handles TX_SYMLINK transactions. 377 */ 378 void 379 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 380 znode_t *dzp, znode_t *zp, char *name, char *link) 381 { 382 itx_t *itx; 383 uint64_t seq; 384 lr_create_t *lr; 385 size_t namesize = strlen(name) + 1; 386 size_t linksize = strlen(link) + 1; 387 388 if (zilog == NULL) 389 return; 390 391 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); 392 lr = (lr_create_t *)&itx->itx_lr; 393 lr->lr_doid = dzp->z_id; 394 lr->lr_foid = zp->z_id; 395 lr->lr_mode = zp->z_phys->zp_mode; 396 lr->lr_uid = zp->z_phys->zp_uid; 397 lr->lr_gid = zp->z_phys->zp_gid; 398 lr->lr_gen = zp->z_phys->zp_gen; 399 lr->lr_crtime[0] = zp->z_phys->zp_crtime[0]; 400 lr->lr_crtime[1] = zp->z_phys->zp_crtime[1]; 401 bcopy(name, (char *)(lr + 1), namesize); 402 bcopy(link, (char *)(lr + 1) + namesize, linksize); 403 404 seq = zil_itx_assign(zilog, itx, tx); 405 dzp->z_last_itx = seq; 406 zp->z_last_itx = seq; 407 } 408 409 /* 410 * zfs_log_rename() handles TX_RENAME transactions. 411 */ 412 void 413 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 414 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) 415 { 416 itx_t *itx; 417 uint64_t seq; 418 lr_rename_t *lr; 419 size_t snamesize = strlen(sname) + 1; 420 size_t dnamesize = strlen(dname) + 1; 421 422 if (zilog == NULL) 423 return; 424 425 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); 426 lr = (lr_rename_t *)&itx->itx_lr; 427 lr->lr_sdoid = sdzp->z_id; 428 lr->lr_tdoid = tdzp->z_id; 429 bcopy(sname, (char *)(lr + 1), snamesize); 430 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); 431 432 seq = zil_itx_assign(zilog, itx, tx); 433 sdzp->z_last_itx = seq; 434 tdzp->z_last_itx = seq; 435 szp->z_last_itx = seq; 436 } 437 438 /* 439 * zfs_log_write() handles TX_WRITE transactions. 440 */ 441 ssize_t zfs_immediate_write_sz = 32768; 442 443 #define ZIL_MAX_LOG_DATA (SPA_MAXBLOCKSIZE - sizeof (zil_trailer_t) - \ 444 sizeof (lr_write_t)) 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; 453 454 if (zilog == NULL || zp->z_unlinked) 455 return; 456 457 /* 458 * Writes are handled in three different ways: 459 * 460 * WR_INDIRECT: 461 * If the write is greater than zfs_immediate_write_sz and there are 462 * no separate logs in this pool then later *if* we need to log the 463 * write then dmu_sync() is used to immediately write the block and 464 * its block pointer is put in the log record. 465 * WR_COPIED: 466 * If we know we'll immediately be committing the 467 * transaction (FDSYNC (O_DSYNC)), the we allocate a larger 468 * log record here for the data and copy the data in. 469 * WR_NEED_COPY: 470 * Otherwise we don't allocate a buffer, and *if* we need to 471 * flush the write later then a buffer is allocated and 472 * we retrieve the data using the dmu. 473 */ 474 slogging = spa_has_slogs(zilog->zl_spa); 475 if (resid > zfs_immediate_write_sz && !slogging) 476 write_state = WR_INDIRECT; 477 else if (ioflag & FDSYNC) 478 write_state = WR_COPIED; 479 else 480 write_state = WR_NEED_COPY; 481 482 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { 483 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); 484 } 485 486 while (resid) { 487 itx_t *itx; 488 lr_write_t *lr; 489 ssize_t len; 490 491 /* 492 * If there are slogs and the write would overflow the largest 493 * block, then because we don't want to use the main pool 494 * to dmu_sync, we have to split the write. 495 */ 496 if (slogging && 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) != 0) { 506 kmem_free(itx, offsetof(itx_t, itx_lr) + 507 itx->itx_lr.lrc_reclen); 508 itx = zil_itx_create(txtype, sizeof (*lr)); 509 lr = (lr_write_t *)&itx->itx_lr; 510 write_state = WR_NEED_COPY; 511 } 512 513 itx->itx_wr_state = write_state; 514 lr->lr_foid = zp->z_id; 515 lr->lr_offset = off; 516 lr->lr_length = len; 517 lr->lr_blkoff = 0; 518 BP_ZERO(&lr->lr_blkptr); 519 520 itx->itx_private = zp->z_zfsvfs; 521 522 if ((zp->z_sync_cnt != 0) || (fsync_cnt != 0)) 523 itx->itx_sync = B_TRUE; 524 else 525 itx->itx_sync = B_FALSE; 526 527 zp->z_last_itx = zil_itx_assign(zilog, itx, tx); 528 529 off += len; 530 resid -= len; 531 } 532 } 533 534 /* 535 * zfs_log_truncate() handles TX_TRUNCATE transactions. 536 */ 537 void 538 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 539 znode_t *zp, uint64_t off, uint64_t len) 540 { 541 itx_t *itx; 542 uint64_t seq; 543 lr_truncate_t *lr; 544 545 if (zilog == NULL || zp->z_unlinked) 546 return; 547 548 itx = zil_itx_create(txtype, sizeof (*lr)); 549 lr = (lr_truncate_t *)&itx->itx_lr; 550 lr->lr_foid = zp->z_id; 551 lr->lr_offset = off; 552 lr->lr_length = len; 553 554 itx->itx_sync = (zp->z_sync_cnt != 0); 555 seq = zil_itx_assign(zilog, itx, tx); 556 zp->z_last_itx = seq; 557 } 558 559 /* 560 * zfs_log_setattr() handles TX_SETATTR transactions. 561 */ 562 void 563 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 564 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 565 { 566 itx_t *itx; 567 uint64_t seq; 568 lr_setattr_t *lr; 569 xvattr_t *xvap = (xvattr_t *)vap; 570 size_t recsize = sizeof (lr_setattr_t); 571 void *start; 572 573 574 if (zilog == NULL || zp->z_unlinked) 575 return; 576 577 /* 578 * If XVATTR set, then log record size needs to allow 579 * for lr_attr_t + xvattr mask, mapsize and create time 580 * plus actual attribute values 581 */ 582 if (vap->va_mask & AT_XVATTR) 583 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 584 585 if (fuidp) 586 recsize += fuidp->z_domain_str_sz; 587 588 itx = zil_itx_create(txtype, recsize); 589 lr = (lr_setattr_t *)&itx->itx_lr; 590 lr->lr_foid = zp->z_id; 591 lr->lr_mask = (uint64_t)mask_applied; 592 lr->lr_mode = (uint64_t)vap->va_mode; 593 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 594 lr->lr_uid = fuidp->z_fuid_owner; 595 else 596 lr->lr_uid = (uint64_t)vap->va_uid; 597 598 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 599 lr->lr_gid = fuidp->z_fuid_group; 600 else 601 lr->lr_gid = (uint64_t)vap->va_gid; 602 603 lr->lr_size = (uint64_t)vap->va_size; 604 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 605 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 606 start = (lr_setattr_t *)(lr + 1); 607 if (vap->va_mask & AT_XVATTR) { 608 zfs_log_xvattr((lr_attr_t *)start, xvap); 609 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 610 } 611 612 /* 613 * Now stick on domain information if any on end 614 */ 615 616 if (fuidp) 617 (void) zfs_log_fuid_domains(fuidp, start); 618 619 itx->itx_sync = (zp->z_sync_cnt != 0); 620 seq = zil_itx_assign(zilog, itx, tx); 621 zp->z_last_itx = seq; 622 } 623 624 /* 625 * zfs_log_acl() handles TX_ACL transactions. 626 */ 627 void 628 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 629 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 630 { 631 itx_t *itx; 632 uint64_t seq; 633 lr_acl_v0_t *lrv0; 634 lr_acl_t *lr; 635 int txtype; 636 int lrsize; 637 size_t txsize; 638 size_t aclbytes = vsecp->vsa_aclentsz; 639 640 txtype = (zp->z_zfsvfs->z_version == ZPL_VERSION_INITIAL) ? 641 TX_ACL_V0 : TX_ACL; 642 643 if (txtype == TX_ACL) 644 lrsize = sizeof (*lr); 645 else 646 lrsize = sizeof (*lrv0); 647 648 if (zilog == NULL || zp->z_unlinked) 649 return; 650 651 txsize = lrsize + aclbytes + (fuidp ? fuidp->z_domain_str_sz : 0) + 652 sizeof (uint64) * (fuidp ? fuidp->z_fuid_cnt : 0); 653 654 itx = zil_itx_create(txtype, txsize); 655 656 lr = (lr_acl_t *)&itx->itx_lr; 657 lr->lr_foid = zp->z_id; 658 if (txtype == TX_ACL) { 659 lr->lr_acl_bytes = aclbytes; 660 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 661 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 662 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 663 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 664 else 665 lr->lr_acl_flags = 0; 666 } 667 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 668 669 if (txtype == TX_ACL_V0) { 670 lrv0 = (lr_acl_v0_t *)lr; 671 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 672 } else { 673 void *start = (ace_t *)(lr + 1); 674 675 bcopy(vsecp->vsa_aclentp, start, aclbytes); 676 677 start = (caddr_t)start + aclbytes; 678 679 if (fuidp) { 680 start = zfs_log_fuid_ids(fuidp, start); 681 (void) zfs_log_fuid_domains(fuidp, start); 682 } 683 } 684 685 itx->itx_sync = (zp->z_sync_cnt != 0); 686 seq = zil_itx_assign(zilog, itx, tx); 687 zp->z_last_itx = seq; 688 } 689