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 2008 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 49 /* 50 * All the functions in this file are used to construct the log entries 51 * to record transactions. They allocate * an intent log transaction 52 * structure (itx_t) and save within it all the information necessary to 53 * possibly replay the transaction. The itx is then assigned a sequence 54 * number and inserted in the in-memory list anchored in the zilog. 55 */ 56 57 int 58 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) 59 { 60 int isxvattr = (vap->va_mask & AT_XVATTR); 61 switch (type) { 62 case Z_FILE: 63 if (vsecp == NULL && !isxvattr) 64 return (TX_CREATE); 65 if (vsecp && isxvattr) 66 return (TX_CREATE_ACL_ATTR); 67 if (vsecp) 68 return (TX_CREATE_ACL); 69 else 70 return (TX_CREATE_ATTR); 71 /*NOTREACHED*/ 72 case Z_DIR: 73 if (vsecp == NULL && !isxvattr) 74 return (TX_MKDIR); 75 if (vsecp && isxvattr) 76 return (TX_MKDIR_ACL_ATTR); 77 if (vsecp) 78 return (TX_MKDIR_ACL); 79 else 80 return (TX_MKDIR_ATTR); 81 case Z_XATTRDIR: 82 return (TX_MKXATTR); 83 } 84 ASSERT(0); 85 return (TX_MAX_TYPE); 86 } 87 88 /* 89 * build up the log data necessary for logging xvattr_t 90 * First lr_attr_t is initialized. following the lr_attr_t 91 * is the mapsize and attribute bitmap copied from the xvattr_t. 92 * Following the bitmap and bitmapsize two 64 bit words are reserved 93 * for the create time which may be set. Following the create time 94 * records a single 64 bit integer which has the bits to set on 95 * replay for the xvattr. 96 */ 97 static void 98 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) 99 { 100 uint32_t *bitmap; 101 uint64_t *attrs; 102 uint64_t *crtime; 103 xoptattr_t *xoap; 104 void *scanstamp; 105 int i; 106 107 xoap = xva_getxoptattr(xvap); 108 ASSERT(xoap); 109 110 lrattr->lr_attr_masksize = xvap->xva_mapsize; 111 bitmap = &lrattr->lr_attr_bitmap; 112 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { 113 *bitmap = xvap->xva_reqattrmap[i]; 114 } 115 116 /* Now pack the attributes up in a single uint64_t */ 117 attrs = (uint64_t *)bitmap; 118 crtime = attrs + 1; 119 scanstamp = (caddr_t)(crtime + 2); 120 *attrs = 0; 121 if (XVA_ISSET_REQ(xvap, XAT_READONLY)) 122 *attrs |= (xoap->xoa_readonly == 0) ? 0 : 123 XAT0_READONLY; 124 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) 125 *attrs |= (xoap->xoa_hidden == 0) ? 0 : 126 XAT0_HIDDEN; 127 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) 128 *attrs |= (xoap->xoa_system == 0) ? 0 : 129 XAT0_SYSTEM; 130 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) 131 *attrs |= (xoap->xoa_archive == 0) ? 0 : 132 XAT0_ARCHIVE; 133 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) 134 *attrs |= (xoap->xoa_immutable == 0) ? 0 : 135 XAT0_IMMUTABLE; 136 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) 137 *attrs |= (xoap->xoa_nounlink == 0) ? 0 : 138 XAT0_NOUNLINK; 139 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) 140 *attrs |= (xoap->xoa_appendonly == 0) ? 0 : 141 XAT0_APPENDONLY; 142 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) 143 *attrs |= (xoap->xoa_opaque == 0) ? 0 : 144 XAT0_APPENDONLY; 145 if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) 146 *attrs |= (xoap->xoa_nodump == 0) ? 0 : 147 XAT0_NODUMP; 148 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) 149 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : 150 XAT0_AV_QUARANTINED; 151 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) 152 *attrs |= (xoap->xoa_av_modified == 0) ? 0 : 153 XAT0_AV_MODIFIED; 154 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) 155 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); 156 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) 157 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); 158 } 159 160 static void * 161 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) 162 { 163 zfs_fuid_t *zfuid; 164 uint64_t *fuidloc = start; 165 166 /* First copy in the ACE FUIDs */ 167 for (zfuid = list_head(&fuidp->z_fuids); zfuid; 168 zfuid = list_next(&fuidp->z_fuids, zfuid)) { 169 *fuidloc++ = zfuid->z_logfuid; 170 } 171 return (fuidloc); 172 } 173 174 175 static void * 176 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) 177 { 178 zfs_fuid_domain_t *zdomain; 179 180 /* now copy in the domain info, if any */ 181 if (fuidp->z_domain_str_sz != 0) { 182 for (zdomain = list_head(&fuidp->z_domains); zdomain; 183 zdomain = list_next(&fuidp->z_domains, zdomain)) { 184 bcopy((void *)zdomain->z_domain, start, 185 strlen(zdomain->z_domain) + 1); 186 start = (caddr_t)start + 187 strlen(zdomain->z_domain) + 1; 188 } 189 } 190 return (start); 191 } 192 193 /* 194 * zfs_log_create() is used to handle TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, 195 * TX_MKDIR_ATTR and TX_MKXATTR 196 * transactions. 197 * 198 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID 199 * domain information appended prior to the name. In this case the 200 * uid/gid in the log record will be a log centric FUID. 201 * 202 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that 203 * may contain attributes, ACL and optional fuid information. 204 * 205 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify 206 * and ACL and normal users/groups in the ACEs. 207 * 208 * There may be an optional xvattr attribute information similar 209 * to zfs_log_setattr. 210 * 211 * Also, after the file name "domain" strings may be appended. 212 */ 213 void 214 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 215 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, 216 zfs_fuid_info_t *fuidp, vattr_t *vap) 217 { 218 itx_t *itx; 219 uint64_t seq; 220 lr_create_t *lr; 221 lr_acl_create_t *lracl; 222 size_t aclsize; 223 size_t xvatsize = 0; 224 size_t txsize; 225 xvattr_t *xvap = (xvattr_t *)vap; 226 void *end; 227 size_t lrsize; 228 size_t namesize = strlen(name) + 1; 229 size_t fuidsz = 0; 230 231 if (zilog == NULL) 232 return; 233 234 /* 235 * If we have FUIDs present then add in space for 236 * domains and ACE fuid's if any. 237 */ 238 if (fuidp) { 239 fuidsz += fuidp->z_domain_str_sz; 240 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); 241 } 242 243 if (vap->va_mask & AT_XVATTR) 244 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); 245 246 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || 247 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || 248 (int)txtype == TX_MKXATTR) { 249 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; 250 lrsize = sizeof (*lr); 251 } else { 252 aclsize = (vsecp) ? vsecp->vsa_aclentsz : 0; 253 txsize = 254 sizeof (lr_acl_create_t) + namesize + fuidsz + 255 ZIL_ACE_LENGTH(aclsize) + xvatsize; 256 lrsize = sizeof (lr_acl_create_t); 257 } 258 259 itx = zil_itx_create(txtype, txsize); 260 261 lr = (lr_create_t *)&itx->itx_lr; 262 lr->lr_doid = dzp->z_id; 263 lr->lr_foid = zp->z_id; 264 lr->lr_mode = zp->z_phys->zp_mode; 265 if (!IS_EPHEMERAL(zp->z_phys->zp_uid)) { 266 lr->lr_uid = (uint64_t)zp->z_phys->zp_uid; 267 } else { 268 lr->lr_uid = fuidp->z_fuid_owner; 269 } 270 if (!IS_EPHEMERAL(zp->z_phys->zp_gid)) { 271 lr->lr_gid = (uint64_t)zp->z_phys->zp_gid; 272 } else { 273 lr->lr_gid = fuidp->z_fuid_group; 274 } 275 lr->lr_gen = zp->z_phys->zp_gen; 276 lr->lr_crtime[0] = zp->z_phys->zp_crtime[0]; 277 lr->lr_crtime[1] = zp->z_phys->zp_crtime[1]; 278 lr->lr_rdev = zp->z_phys->zp_rdev; 279 280 /* 281 * Fill in xvattr info if any 282 */ 283 if (vap->va_mask & AT_XVATTR) { 284 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); 285 end = (caddr_t)lr + lrsize + xvatsize; 286 } else { 287 end = (caddr_t)lr + lrsize; 288 } 289 290 /* Now fill in any ACL info */ 291 292 if (vsecp) { 293 lracl = (lr_acl_create_t *)&itx->itx_lr; 294 lracl->lr_aclcnt = vsecp->vsa_aclcnt; 295 lracl->lr_acl_bytes = aclsize; 296 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 297 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 298 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) 299 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 300 else 301 lracl->lr_acl_flags = 0; 302 303 bcopy(vsecp->vsa_aclentp, end, aclsize); 304 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); 305 } 306 307 /* drop in FUID info */ 308 if (fuidp) { 309 end = zfs_log_fuid_ids(fuidp, end); 310 end = zfs_log_fuid_domains(fuidp, end); 311 } 312 /* 313 * Now place file name in log record 314 */ 315 bcopy(name, end, namesize); 316 317 seq = zil_itx_assign(zilog, itx, tx); 318 dzp->z_last_itx = seq; 319 zp->z_last_itx = seq; 320 } 321 322 /* 323 * zfs_log_remove() handles both TX_REMOVE and TX_RMDIR transactions. 324 */ 325 void 326 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 327 znode_t *dzp, char *name) 328 { 329 itx_t *itx; 330 uint64_t seq; 331 lr_remove_t *lr; 332 size_t namesize = strlen(name) + 1; 333 334 if (zilog == NULL) 335 return; 336 337 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 338 lr = (lr_remove_t *)&itx->itx_lr; 339 lr->lr_doid = dzp->z_id; 340 bcopy(name, (char *)(lr + 1), namesize); 341 342 seq = zil_itx_assign(zilog, itx, tx); 343 dzp->z_last_itx = seq; 344 } 345 346 /* 347 * zfs_log_link() handles TX_LINK transactions. 348 */ 349 void 350 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 351 znode_t *dzp, znode_t *zp, char *name) 352 { 353 itx_t *itx; 354 uint64_t seq; 355 lr_link_t *lr; 356 size_t namesize = strlen(name) + 1; 357 358 if (zilog == NULL) 359 return; 360 361 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 362 lr = (lr_link_t *)&itx->itx_lr; 363 lr->lr_doid = dzp->z_id; 364 lr->lr_link_obj = zp->z_id; 365 bcopy(name, (char *)(lr + 1), namesize); 366 367 seq = zil_itx_assign(zilog, itx, tx); 368 dzp->z_last_itx = seq; 369 zp->z_last_itx = seq; 370 } 371 372 /* 373 * zfs_log_symlink() handles TX_SYMLINK transactions. 374 */ 375 void 376 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 377 znode_t *dzp, znode_t *zp, char *name, char *link) 378 { 379 itx_t *itx; 380 uint64_t seq; 381 lr_create_t *lr; 382 size_t namesize = strlen(name) + 1; 383 size_t linksize = strlen(link) + 1; 384 385 if (zilog == NULL) 386 return; 387 388 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); 389 lr = (lr_create_t *)&itx->itx_lr; 390 lr->lr_doid = dzp->z_id; 391 lr->lr_foid = zp->z_id; 392 lr->lr_mode = zp->z_phys->zp_mode; 393 lr->lr_uid = zp->z_phys->zp_uid; 394 lr->lr_gid = zp->z_phys->zp_gid; 395 lr->lr_gen = zp->z_phys->zp_gen; 396 lr->lr_crtime[0] = zp->z_phys->zp_crtime[0]; 397 lr->lr_crtime[1] = zp->z_phys->zp_crtime[1]; 398 bcopy(name, (char *)(lr + 1), namesize); 399 bcopy(link, (char *)(lr + 1) + namesize, linksize); 400 401 seq = zil_itx_assign(zilog, itx, tx); 402 dzp->z_last_itx = seq; 403 zp->z_last_itx = seq; 404 } 405 406 /* 407 * zfs_log_rename() handles TX_RENAME transactions. 408 */ 409 void 410 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 411 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) 412 { 413 itx_t *itx; 414 uint64_t seq; 415 lr_rename_t *lr; 416 size_t snamesize = strlen(sname) + 1; 417 size_t dnamesize = strlen(dname) + 1; 418 419 if (zilog == NULL) 420 return; 421 422 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); 423 lr = (lr_rename_t *)&itx->itx_lr; 424 lr->lr_sdoid = sdzp->z_id; 425 lr->lr_tdoid = tdzp->z_id; 426 bcopy(sname, (char *)(lr + 1), snamesize); 427 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); 428 429 seq = zil_itx_assign(zilog, itx, tx); 430 sdzp->z_last_itx = seq; 431 tdzp->z_last_itx = seq; 432 szp->z_last_itx = seq; 433 } 434 435 /* 436 * zfs_log_write() handles TX_WRITE transactions. 437 */ 438 ssize_t zfs_immediate_write_sz = 32768; 439 440 #define ZIL_MAX_LOG_DATA (SPA_MAXBLOCKSIZE - sizeof (zil_trailer_t) - \ 441 sizeof (lr_write_t)) 442 443 void 444 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 445 znode_t *zp, offset_t off, ssize_t resid, int ioflag) 446 { 447 itx_wr_state_t write_state; 448 boolean_t slogging; 449 uintptr_t fsync_cnt; 450 451 if (zilog == NULL || zp->z_unlinked) 452 return; 453 454 /* 455 * Writes are handled in three different ways: 456 * 457 * WR_INDIRECT: 458 * In this mode, if we need to commit the write later, then the block 459 * is immediately written into the file system (using dmu_sync), 460 * and a pointer to the block is put into the log record. 461 * When the txg commits the block is linked in. 462 * This saves additionally writing the data into the log record. 463 * There are a few requirements for this to occur: 464 * - write is greater than zfs_immediate_write_sz 465 * - not using slogs (as slogs are assumed to always be faster 466 * than writing into the main pool) 467 * - the write occupies only one block 468 * WR_COPIED: 469 * If we know we'll immediately be committing the 470 * transaction (FSYNC or FDSYNC), the we allocate a larger 471 * log record here for the data and copy the data in. 472 * WR_NEED_COPY: 473 * Otherwise we don't allocate a buffer, and *if* we need to 474 * flush the write later then a buffer is allocated and 475 * we retrieve the data using the dmu. 476 */ 477 slogging = spa_has_slogs(zilog->zl_spa); 478 if (resid > zfs_immediate_write_sz && !slogging && resid <= zp->z_blksz) 479 write_state = WR_INDIRECT; 480 else if (ioflag & (FSYNC | FDSYNC)) 481 write_state = WR_COPIED; 482 else 483 write_state = WR_NEED_COPY; 484 485 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { 486 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); 487 } 488 489 while (resid) { 490 itx_t *itx; 491 lr_write_t *lr; 492 ssize_t len; 493 494 /* 495 * If the write would overflow the largest block then split it. 496 */ 497 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) 498 len = SPA_MAXBLOCKSIZE >> 1; 499 else 500 len = resid; 501 502 itx = zil_itx_create(txtype, sizeof (*lr) + 503 (write_state == WR_COPIED ? len : 0)); 504 lr = (lr_write_t *)&itx->itx_lr; 505 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, 506 zp->z_id, off, len, lr + 1) != 0) { 507 kmem_free(itx, offsetof(itx_t, itx_lr) + 508 itx->itx_lr.lrc_reclen); 509 itx = zil_itx_create(txtype, sizeof (*lr)); 510 lr = (lr_write_t *)&itx->itx_lr; 511 write_state = WR_NEED_COPY; 512 } 513 514 itx->itx_wr_state = write_state; 515 if (write_state == WR_NEED_COPY) 516 itx->itx_sod += len; 517 lr->lr_foid = zp->z_id; 518 lr->lr_offset = off; 519 lr->lr_length = len; 520 lr->lr_blkoff = 0; 521 BP_ZERO(&lr->lr_blkptr); 522 523 itx->itx_private = zp->z_zfsvfs; 524 525 if ((zp->z_sync_cnt != 0) || (fsync_cnt != 0) || 526 (ioflag & (FSYNC | FDSYNC))) 527 itx->itx_sync = B_TRUE; 528 else 529 itx->itx_sync = B_FALSE; 530 531 zp->z_last_itx = zil_itx_assign(zilog, itx, tx); 532 533 off += len; 534 resid -= len; 535 } 536 } 537 538 /* 539 * zfs_log_truncate() handles TX_TRUNCATE transactions. 540 */ 541 void 542 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 543 znode_t *zp, uint64_t off, uint64_t len) 544 { 545 itx_t *itx; 546 uint64_t seq; 547 lr_truncate_t *lr; 548 549 if (zilog == NULL || zp->z_unlinked) 550 return; 551 552 itx = zil_itx_create(txtype, sizeof (*lr)); 553 lr = (lr_truncate_t *)&itx->itx_lr; 554 lr->lr_foid = zp->z_id; 555 lr->lr_offset = off; 556 lr->lr_length = len; 557 558 itx->itx_sync = (zp->z_sync_cnt != 0); 559 seq = zil_itx_assign(zilog, itx, tx); 560 zp->z_last_itx = seq; 561 } 562 563 /* 564 * zfs_log_setattr() handles TX_SETATTR transactions. 565 */ 566 void 567 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 568 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 569 { 570 itx_t *itx; 571 uint64_t seq; 572 lr_setattr_t *lr; 573 xvattr_t *xvap = (xvattr_t *)vap; 574 size_t recsize = sizeof (lr_setattr_t); 575 void *start; 576 577 578 if (zilog == NULL || zp->z_unlinked) 579 return; 580 581 /* 582 * If XVATTR set, then log record size needs to allow 583 * for lr_attr_t + xvattr mask, mapsize and create time 584 * plus actual attribute values 585 */ 586 if (vap->va_mask & AT_XVATTR) 587 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 588 589 if (fuidp) 590 recsize += fuidp->z_domain_str_sz; 591 592 itx = zil_itx_create(txtype, recsize); 593 lr = (lr_setattr_t *)&itx->itx_lr; 594 lr->lr_foid = zp->z_id; 595 lr->lr_mask = (uint64_t)mask_applied; 596 lr->lr_mode = (uint64_t)vap->va_mode; 597 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 598 lr->lr_uid = fuidp->z_fuid_owner; 599 else 600 lr->lr_uid = (uint64_t)vap->va_uid; 601 602 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 603 lr->lr_gid = fuidp->z_fuid_group; 604 else 605 lr->lr_gid = (uint64_t)vap->va_gid; 606 607 lr->lr_size = (uint64_t)vap->va_size; 608 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 609 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 610 start = (lr_setattr_t *)(lr + 1); 611 if (vap->va_mask & AT_XVATTR) { 612 zfs_log_xvattr((lr_attr_t *)start, xvap); 613 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 614 } 615 616 /* 617 * Now stick on domain information if any on end 618 */ 619 620 if (fuidp) 621 (void) zfs_log_fuid_domains(fuidp, start); 622 623 itx->itx_sync = (zp->z_sync_cnt != 0); 624 seq = zil_itx_assign(zilog, itx, tx); 625 zp->z_last_itx = seq; 626 } 627 628 /* 629 * zfs_log_acl() handles TX_ACL transactions. 630 */ 631 void 632 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 633 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 634 { 635 itx_t *itx; 636 uint64_t seq; 637 lr_acl_v0_t *lrv0; 638 lr_acl_t *lr; 639 int txtype; 640 int lrsize; 641 size_t txsize; 642 size_t aclbytes = vsecp->vsa_aclentsz; 643 644 if (zilog == NULL || zp->z_unlinked) 645 return; 646 647 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? 648 TX_ACL_V0 : TX_ACL; 649 650 if (txtype == TX_ACL) 651 lrsize = sizeof (*lr); 652 else 653 lrsize = sizeof (*lrv0); 654 655 txsize = lrsize + 656 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + 657 (fuidp ? fuidp->z_domain_str_sz : 0) + 658 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); 659 660 itx = zil_itx_create(txtype, txsize); 661 662 lr = (lr_acl_t *)&itx->itx_lr; 663 lr->lr_foid = zp->z_id; 664 if (txtype == TX_ACL) { 665 lr->lr_acl_bytes = aclbytes; 666 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 667 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 668 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 669 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 670 else 671 lr->lr_acl_flags = 0; 672 } 673 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 674 675 if (txtype == TX_ACL_V0) { 676 lrv0 = (lr_acl_v0_t *)lr; 677 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 678 } else { 679 void *start = (ace_t *)(lr + 1); 680 681 bcopy(vsecp->vsa_aclentp, start, aclbytes); 682 683 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); 684 685 if (fuidp) { 686 start = zfs_log_fuid_ids(fuidp, start); 687 (void) zfs_log_fuid_domains(fuidp, start); 688 } 689 } 690 691 itx->itx_sync = (zp->z_sync_cnt != 0); 692 seq = zil_itx_assign(zilog, itx, tx); 693 zp->z_last_itx = seq; 694 } 695