zfs_log.c revision 276081
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/file.h> 32#include <sys/vfs.h> 33#include <sys/zfs_znode.h> 34#include <sys/zfs_dir.h> 35#include <sys/zil.h> 36#include <sys/zil_impl.h> 37#include <sys/byteorder.h> 38#include <sys/policy.h> 39#include <sys/stat.h> 40#include <sys/acl.h> 41#include <sys/dmu.h> 42#include <sys/spa.h> 43#include <sys/zfs_fuid.h> 44#include <sys/dsl_dataset.h> 45 46/* 47 * These zfs_log_* functions must be called within a dmu tx, in one 48 * of 2 contexts depending on zilog->z_replay: 49 * 50 * Non replay mode 51 * --------------- 52 * We need to record the transaction so that if it is committed to 53 * the Intent Log then it can be replayed. An intent log transaction 54 * structure (itx_t) is allocated and all the information necessary to 55 * possibly replay the transaction is saved in it. The itx is then assigned 56 * a sequence number and inserted in the in-memory list anchored in the zilog. 57 * 58 * Replay mode 59 * ----------- 60 * We need to mark the intent log record as replayed in the log header. 61 * This is done in the same transaction as the replay so that they 62 * commit atomically. 63 */ 64 65int 66zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) 67{ 68 int isxvattr = (vap->va_mask & AT_XVATTR); 69 switch (type) { 70 case Z_FILE: 71 if (vsecp == NULL && !isxvattr) 72 return (TX_CREATE); 73 if (vsecp && isxvattr) 74#ifdef TODO 75 return (TX_CREATE_ACL_ATTR); 76#else 77 panic("%s:%u: unsupported condition", __func__, __LINE__); 78#endif 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#ifdef TODO 89 return (TX_MKDIR_ACL_ATTR); 90#else 91 panic("%s:%u: unsupported condition", __func__, __LINE__); 92#endif 93 if (vsecp) 94 return (TX_MKDIR_ACL); 95 else 96 return (TX_MKDIR_ATTR); 97 case Z_XATTRDIR: 98 return (TX_MKXATTR); 99 } 100 ASSERT(0); 101 return (TX_MAX_TYPE); 102} 103 104/* 105 * build up the log data necessary for logging xvattr_t 106 * First lr_attr_t is initialized. following the lr_attr_t 107 * is the mapsize and attribute bitmap copied from the xvattr_t. 108 * Following the bitmap and bitmapsize two 64 bit words are reserved 109 * for the create time which may be set. Following the create time 110 * records a single 64 bit integer which has the bits to set on 111 * replay for the xvattr. 112 */ 113static void 114zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) 115{ 116 uint32_t *bitmap; 117 uint64_t *attrs; 118 uint64_t *crtime; 119 xoptattr_t *xoap; 120 void *scanstamp; 121 int i; 122 123 xoap = xva_getxoptattr(xvap); 124 ASSERT(xoap); 125 126 lrattr->lr_attr_masksize = xvap->xva_mapsize; 127 bitmap = &lrattr->lr_attr_bitmap; 128 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { 129 *bitmap = xvap->xva_reqattrmap[i]; 130 } 131 132 /* Now pack the attributes up in a single uint64_t */ 133 attrs = (uint64_t *)bitmap; 134 crtime = attrs + 1; 135 scanstamp = (caddr_t)(crtime + 2); 136 *attrs = 0; 137 if (XVA_ISSET_REQ(xvap, XAT_READONLY)) 138 *attrs |= (xoap->xoa_readonly == 0) ? 0 : 139 XAT0_READONLY; 140 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) 141 *attrs |= (xoap->xoa_hidden == 0) ? 0 : 142 XAT0_HIDDEN; 143 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) 144 *attrs |= (xoap->xoa_system == 0) ? 0 : 145 XAT0_SYSTEM; 146 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) 147 *attrs |= (xoap->xoa_archive == 0) ? 0 : 148 XAT0_ARCHIVE; 149 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) 150 *attrs |= (xoap->xoa_immutable == 0) ? 0 : 151 XAT0_IMMUTABLE; 152 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) 153 *attrs |= (xoap->xoa_nounlink == 0) ? 0 : 154 XAT0_NOUNLINK; 155 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) 156 *attrs |= (xoap->xoa_appendonly == 0) ? 0 : 157 XAT0_APPENDONLY; 158 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) 159 *attrs |= (xoap->xoa_opaque == 0) ? 0 : 160 XAT0_APPENDONLY; 161 if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) 162 *attrs |= (xoap->xoa_nodump == 0) ? 0 : 163 XAT0_NODUMP; 164 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) 165 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : 166 XAT0_AV_QUARANTINED; 167 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) 168 *attrs |= (xoap->xoa_av_modified == 0) ? 0 : 169 XAT0_AV_MODIFIED; 170 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) 171 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); 172 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) 173 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); 174 if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) 175 *attrs |= (xoap->xoa_reparse == 0) ? 0 : 176 XAT0_REPARSE; 177 if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) 178 *attrs |= (xoap->xoa_offline == 0) ? 0 : 179 XAT0_OFFLINE; 180 if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) 181 *attrs |= (xoap->xoa_sparse == 0) ? 0 : 182 XAT0_SPARSE; 183} 184 185static void * 186zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) 187{ 188 zfs_fuid_t *zfuid; 189 uint64_t *fuidloc = start; 190 191 /* First copy in the ACE FUIDs */ 192 for (zfuid = list_head(&fuidp->z_fuids); zfuid; 193 zfuid = list_next(&fuidp->z_fuids, zfuid)) { 194 *fuidloc++ = zfuid->z_logfuid; 195 } 196 return (fuidloc); 197} 198 199 200static void * 201zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) 202{ 203 zfs_fuid_domain_t *zdomain; 204 205 /* now copy in the domain info, if any */ 206 if (fuidp->z_domain_str_sz != 0) { 207 for (zdomain = list_head(&fuidp->z_domains); zdomain; 208 zdomain = list_next(&fuidp->z_domains, zdomain)) { 209 bcopy((void *)zdomain->z_domain, start, 210 strlen(zdomain->z_domain) + 1); 211 start = (caddr_t)start + 212 strlen(zdomain->z_domain) + 1; 213 } 214 } 215 return (start); 216} 217 218/* 219 * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and 220 * TK_MKXATTR transactions. 221 * 222 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID 223 * domain information appended prior to the name. In this case the 224 * uid/gid in the log record will be a log centric FUID. 225 * 226 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that 227 * may contain attributes, ACL and optional fuid information. 228 * 229 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify 230 * and ACL and normal users/groups in the ACEs. 231 * 232 * There may be an optional xvattr attribute information similar 233 * to zfs_log_setattr. 234 * 235 * Also, after the file name "domain" strings may be appended. 236 */ 237void 238zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 239 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, 240 zfs_fuid_info_t *fuidp, vattr_t *vap) 241{ 242 itx_t *itx; 243 lr_create_t *lr; 244 lr_acl_create_t *lracl; 245 size_t aclsize = (vsecp != NULL) ? vsecp->vsa_aclentsz : 0; 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 (zil_replaying(zilog, tx)) 255 return; 256 257 /* 258 * If we have FUIDs present then add in space for 259 * domains and ACE fuid's if any. 260 */ 261 if (fuidp) { 262 fuidsz += fuidp->z_domain_str_sz; 263 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); 264 } 265 266 if (vap->va_mask & AT_XVATTR) 267 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); 268 269 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || 270 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || 271 (int)txtype == TX_MKXATTR) { 272 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; 273 lrsize = sizeof (*lr); 274 } else { 275 txsize = 276 sizeof (lr_acl_create_t) + namesize + fuidsz + 277 ZIL_ACE_LENGTH(aclsize) + xvatsize; 278 lrsize = sizeof (lr_acl_create_t); 279 } 280 281 itx = zil_itx_create(txtype, txsize); 282 283 lr = (lr_create_t *)&itx->itx_lr; 284 lr->lr_doid = dzp->z_id; 285 lr->lr_foid = zp->z_id; 286 lr->lr_mode = zp->z_mode; 287 if (!IS_EPHEMERAL(zp->z_uid)) { 288 lr->lr_uid = (uint64_t)zp->z_uid; 289 } else { 290 lr->lr_uid = fuidp->z_fuid_owner; 291 } 292 if (!IS_EPHEMERAL(zp->z_gid)) { 293 lr->lr_gid = (uint64_t)zp->z_gid; 294 } else { 295 lr->lr_gid = fuidp->z_fuid_group; 296 } 297 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 298 sizeof (uint64_t)); 299 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 300 lr->lr_crtime, sizeof (uint64_t) * 2); 301 302 if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev, 303 sizeof (lr->lr_rdev)) != 0) 304 lr->lr_rdev = 0; 305 306 /* 307 * Fill in xvattr info if any 308 */ 309 if (vap->va_mask & AT_XVATTR) { 310 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); 311 end = (caddr_t)lr + lrsize + xvatsize; 312 } else { 313 end = (caddr_t)lr + lrsize; 314 } 315 316 /* Now fill in any ACL info */ 317 318 if (vsecp) { 319 lracl = (lr_acl_create_t *)&itx->itx_lr; 320 lracl->lr_aclcnt = vsecp->vsa_aclcnt; 321 lracl->lr_acl_bytes = aclsize; 322 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 323 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 324 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) 325 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 326 else 327 lracl->lr_acl_flags = 0; 328 329 bcopy(vsecp->vsa_aclentp, end, aclsize); 330 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); 331 } 332 333 /* drop in FUID info */ 334 if (fuidp) { 335 end = zfs_log_fuid_ids(fuidp, end); 336 end = zfs_log_fuid_domains(fuidp, end); 337 } 338 /* 339 * Now place file name in log record 340 */ 341 bcopy(name, end, namesize); 342 343 zil_itx_assign(zilog, itx, tx); 344} 345 346/* 347 * Handles both TX_REMOVE and TX_RMDIR transactions. 348 */ 349void 350zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 351 znode_t *dzp, char *name, uint64_t foid) 352{ 353 itx_t *itx; 354 lr_remove_t *lr; 355 size_t namesize = strlen(name) + 1; 356 357 if (zil_replaying(zilog, tx)) 358 return; 359 360 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 361 lr = (lr_remove_t *)&itx->itx_lr; 362 lr->lr_doid = dzp->z_id; 363 bcopy(name, (char *)(lr + 1), namesize); 364 365 itx->itx_oid = foid; 366 367 zil_itx_assign(zilog, itx, tx); 368} 369 370/* 371 * Handles TX_LINK transactions. 372 */ 373void 374zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 375 znode_t *dzp, znode_t *zp, char *name) 376{ 377 itx_t *itx; 378 lr_link_t *lr; 379 size_t namesize = strlen(name) + 1; 380 381 if (zil_replaying(zilog, tx)) 382 return; 383 384 itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 385 lr = (lr_link_t *)&itx->itx_lr; 386 lr->lr_doid = dzp->z_id; 387 lr->lr_link_obj = zp->z_id; 388 bcopy(name, (char *)(lr + 1), namesize); 389 390 zil_itx_assign(zilog, itx, tx); 391} 392 393/* 394 * Handles TX_SYMLINK transactions. 395 */ 396void 397zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 398 znode_t *dzp, znode_t *zp, char *name, char *link) 399{ 400 itx_t *itx; 401 lr_create_t *lr; 402 size_t namesize = strlen(name) + 1; 403 size_t linksize = strlen(link) + 1; 404 405 if (zil_replaying(zilog, tx)) 406 return; 407 408 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); 409 lr = (lr_create_t *)&itx->itx_lr; 410 lr->lr_doid = dzp->z_id; 411 lr->lr_foid = zp->z_id; 412 lr->lr_uid = zp->z_uid; 413 lr->lr_gid = zp->z_gid; 414 lr->lr_mode = zp->z_mode; 415 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 416 sizeof (uint64_t)); 417 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 418 lr->lr_crtime, sizeof (uint64_t) * 2); 419 bcopy(name, (char *)(lr + 1), namesize); 420 bcopy(link, (char *)(lr + 1) + namesize, linksize); 421 422 zil_itx_assign(zilog, itx, tx); 423} 424 425/* 426 * Handles TX_RENAME transactions. 427 */ 428void 429zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 430 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) 431{ 432 itx_t *itx; 433 lr_rename_t *lr; 434 size_t snamesize = strlen(sname) + 1; 435 size_t dnamesize = strlen(dname) + 1; 436 437 if (zil_replaying(zilog, tx)) 438 return; 439 440 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); 441 lr = (lr_rename_t *)&itx->itx_lr; 442 lr->lr_sdoid = sdzp->z_id; 443 lr->lr_tdoid = tdzp->z_id; 444 bcopy(sname, (char *)(lr + 1), snamesize); 445 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); 446 itx->itx_oid = szp->z_id; 447 448 zil_itx_assign(zilog, itx, tx); 449} 450 451/* 452 * Handles TX_WRITE transactions. 453 */ 454ssize_t zfs_immediate_write_sz = 32768; 455 456void 457zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 458 znode_t *zp, offset_t off, ssize_t resid, int ioflag) 459{ 460 itx_wr_state_t write_state; 461 boolean_t slogging; 462 uintptr_t fsync_cnt; 463 ssize_t immediate_write_sz; 464 465 if (zil_replaying(zilog, tx) || zp->z_unlinked) 466 return; 467 468 immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) 469 ? 0 : zfs_immediate_write_sz; 470 471 slogging = spa_has_slogs(zilog->zl_spa) && 472 (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); 473 if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) 474 write_state = WR_INDIRECT; 475 else if (ioflag & (FSYNC | FDSYNC)) 476 write_state = WR_COPIED; 477 else 478 write_state = WR_NEED_COPY; 479 480 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { 481 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); 482 } 483 484 while (resid) { 485 itx_t *itx; 486 lr_write_t *lr; 487 ssize_t len; 488 489 /* 490 * If the write would overflow the largest block then split it. 491 */ 492 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) 493 len = SPA_OLD_MAXBLOCKSIZE >> 1; 494 else 495 len = resid; 496 497 itx = zil_itx_create(txtype, sizeof (*lr) + 498 (write_state == WR_COPIED ? len : 0)); 499 lr = (lr_write_t *)&itx->itx_lr; 500 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, 501 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { 502 zil_itx_destroy(itx); 503 itx = zil_itx_create(txtype, sizeof (*lr)); 504 lr = (lr_write_t *)&itx->itx_lr; 505 write_state = WR_NEED_COPY; 506 } 507 508 itx->itx_wr_state = write_state; 509 if (write_state == WR_NEED_COPY) 510 itx->itx_sod += len; 511 lr->lr_foid = zp->z_id; 512 lr->lr_offset = off; 513 lr->lr_length = len; 514 lr->lr_blkoff = 0; 515 BP_ZERO(&lr->lr_blkptr); 516 517 itx->itx_private = zp->z_zfsvfs; 518 519 if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && 520 (fsync_cnt == 0)) 521 itx->itx_sync = B_FALSE; 522 523 zil_itx_assign(zilog, itx, tx); 524 525 off += len; 526 resid -= len; 527 } 528} 529 530/* 531 * Handles TX_TRUNCATE transactions. 532 */ 533void 534zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 535 znode_t *zp, uint64_t off, uint64_t len) 536{ 537 itx_t *itx; 538 lr_truncate_t *lr; 539 540 if (zil_replaying(zilog, tx) || zp->z_unlinked) 541 return; 542 543 itx = zil_itx_create(txtype, sizeof (*lr)); 544 lr = (lr_truncate_t *)&itx->itx_lr; 545 lr->lr_foid = zp->z_id; 546 lr->lr_offset = off; 547 lr->lr_length = len; 548 549 itx->itx_sync = (zp->z_sync_cnt != 0); 550 zil_itx_assign(zilog, itx, tx); 551} 552 553/* 554 * Handles TX_SETATTR transactions. 555 */ 556void 557zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 558 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 559{ 560 itx_t *itx; 561 lr_setattr_t *lr; 562 xvattr_t *xvap = (xvattr_t *)vap; 563 size_t recsize = sizeof (lr_setattr_t); 564 void *start; 565 566 if (zil_replaying(zilog, tx) || zp->z_unlinked) 567 return; 568 569 /* 570 * If XVATTR set, then log record size needs to allow 571 * for lr_attr_t + xvattr mask, mapsize and create time 572 * plus actual attribute values 573 */ 574 if (vap->va_mask & AT_XVATTR) 575 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 576 577 if (fuidp) 578 recsize += fuidp->z_domain_str_sz; 579 580 itx = zil_itx_create(txtype, recsize); 581 lr = (lr_setattr_t *)&itx->itx_lr; 582 lr->lr_foid = zp->z_id; 583 lr->lr_mask = (uint64_t)mask_applied; 584 lr->lr_mode = (uint64_t)vap->va_mode; 585 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 586 lr->lr_uid = fuidp->z_fuid_owner; 587 else 588 lr->lr_uid = (uint64_t)vap->va_uid; 589 590 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 591 lr->lr_gid = fuidp->z_fuid_group; 592 else 593 lr->lr_gid = (uint64_t)vap->va_gid; 594 595 lr->lr_size = (uint64_t)vap->va_size; 596 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 597 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 598 start = (lr_setattr_t *)(lr + 1); 599 if (vap->va_mask & AT_XVATTR) { 600 zfs_log_xvattr((lr_attr_t *)start, xvap); 601 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 602 } 603 604 /* 605 * Now stick on domain information if any on end 606 */ 607 608 if (fuidp) 609 (void) zfs_log_fuid_domains(fuidp, start); 610 611 itx->itx_sync = (zp->z_sync_cnt != 0); 612 zil_itx_assign(zilog, itx, tx); 613} 614 615/* 616 * Handles TX_ACL transactions. 617 */ 618void 619zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 620 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 621{ 622 itx_t *itx; 623 lr_acl_v0_t *lrv0; 624 lr_acl_t *lr; 625 int txtype; 626 int lrsize; 627 size_t txsize; 628 size_t aclbytes = vsecp->vsa_aclentsz; 629 630 if (zil_replaying(zilog, tx) || zp->z_unlinked) 631 return; 632 633 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? 634 TX_ACL_V0 : TX_ACL; 635 636 if (txtype == TX_ACL) 637 lrsize = sizeof (*lr); 638 else 639 lrsize = sizeof (*lrv0); 640 641 txsize = lrsize + 642 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + 643 (fuidp ? fuidp->z_domain_str_sz : 0) + 644 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); 645 646 itx = zil_itx_create(txtype, txsize); 647 648 lr = (lr_acl_t *)&itx->itx_lr; 649 lr->lr_foid = zp->z_id; 650 if (txtype == TX_ACL) { 651 lr->lr_acl_bytes = aclbytes; 652 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 653 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 654 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 655 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 656 else 657 lr->lr_acl_flags = 0; 658 } 659 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 660 661 if (txtype == TX_ACL_V0) { 662 lrv0 = (lr_acl_v0_t *)lr; 663 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 664 } else { 665 void *start = (ace_t *)(lr + 1); 666 667 bcopy(vsecp->vsa_aclentp, start, aclbytes); 668 669 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); 670 671 if (fuidp) { 672 start = zfs_log_fuid_ids(fuidp, start); 673 (void) zfs_log_fuid_domains(fuidp, start); 674 } 675 } 676 677 itx->itx_sync = (zp->z_sync_cnt != 0); 678 zil_itx_assign(zilog, itx, tx); 679} 680