1168404Spjd/* 2168404Spjd * CDDL HEADER START 3168404Spjd * 4168404Spjd * The contents of this file are subject to the terms of the 5168404Spjd * Common Development and Distribution License (the "License"). 6168404Spjd * You may not use this file except in compliance with the License. 7168404Spjd * 8168404Spjd * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9168404Spjd * or http://www.opensolaris.org/os/licensing. 10168404Spjd * See the License for the specific language governing permissions 11168404Spjd * and limitations under the License. 12168404Spjd * 13168404Spjd * When distributing Covered Code, include this CDDL HEADER in each 14168404Spjd * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15168404Spjd * If applicable, add the following below this CDDL HEADER, with the 16168404Spjd * fields enclosed by brackets "[]" replaced with your own identifying 17168404Spjd * information: Portions Copyright [yyyy] [name of copyright owner] 18168404Spjd * 19168404Spjd * CDDL HEADER END 20168404Spjd */ 21168404Spjd/* 22219089Spjd * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23168404Spjd */ 24168404Spjd 25168404Spjd#include <sys/types.h> 26168404Spjd#include <sys/param.h> 27168404Spjd#include <sys/systm.h> 28168404Spjd#include <sys/sysmacros.h> 29168404Spjd#include <sys/cmn_err.h> 30168404Spjd#include <sys/kmem.h> 31168404Spjd#include <sys/file.h> 32168404Spjd#include <sys/vfs.h> 33168404Spjd#include <sys/zfs_znode.h> 34168404Spjd#include <sys/zfs_dir.h> 35168404Spjd#include <sys/zil.h> 36185029Spjd#include <sys/zil_impl.h> 37168404Spjd#include <sys/byteorder.h> 38168962Spjd#include <sys/policy.h> 39168404Spjd#include <sys/stat.h> 40168404Spjd#include <sys/acl.h> 41168404Spjd#include <sys/dmu.h> 42168404Spjd#include <sys/spa.h> 43185029Spjd#include <sys/zfs_fuid.h> 44209962Smm#include <sys/dsl_dataset.h> 45168404Spjd 46168404Spjd/* 47209962Smm * These zfs_log_* functions must be called within a dmu tx, in one 48209962Smm * of 2 contexts depending on zilog->z_replay: 49209962Smm * 50209962Smm * Non replay mode 51209962Smm * --------------- 52209962Smm * We need to record the transaction so that if it is committed to 53209962Smm * the Intent Log then it can be replayed. An intent log transaction 54209962Smm * structure (itx_t) is allocated and all the information necessary to 55209962Smm * possibly replay the transaction is saved in it. The itx is then assigned 56209962Smm * a sequence number and inserted in the in-memory list anchored in the zilog. 57209962Smm * 58209962Smm * Replay mode 59209962Smm * ----------- 60209962Smm * We need to mark the intent log record as replayed in the log header. 61209962Smm * This is done in the same transaction as the replay so that they 62209962Smm * commit atomically. 63168404Spjd */ 64168404Spjd 65185029Spjdint 66185029Spjdzfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) 67185029Spjd{ 68185029Spjd int isxvattr = (vap->va_mask & AT_XVATTR); 69185029Spjd switch (type) { 70185029Spjd case Z_FILE: 71185029Spjd if (vsecp == NULL && !isxvattr) 72185029Spjd return (TX_CREATE); 73185029Spjd if (vsecp && isxvattr) 74185321Strasz#ifdef TODO 75185029Spjd return (TX_CREATE_ACL_ATTR); 76185321Strasz#else 77185321Strasz panic("%s:%u: unsupported condition", __func__, __LINE__); 78185321Strasz#endif 79185029Spjd if (vsecp) 80185029Spjd return (TX_CREATE_ACL); 81185029Spjd else 82185029Spjd return (TX_CREATE_ATTR); 83185029Spjd /*NOTREACHED*/ 84185029Spjd case Z_DIR: 85185029Spjd if (vsecp == NULL && !isxvattr) 86185029Spjd return (TX_MKDIR); 87185029Spjd if (vsecp && isxvattr) 88185321Strasz#ifdef TODO 89185029Spjd return (TX_MKDIR_ACL_ATTR); 90185321Strasz#else 91185321Strasz panic("%s:%u: unsupported condition", __func__, __LINE__); 92185321Strasz#endif 93185029Spjd if (vsecp) 94185029Spjd return (TX_MKDIR_ACL); 95185029Spjd else 96185029Spjd return (TX_MKDIR_ATTR); 97185029Spjd case Z_XATTRDIR: 98185029Spjd return (TX_MKXATTR); 99185029Spjd } 100185029Spjd ASSERT(0); 101185029Spjd return (TX_MAX_TYPE); 102185029Spjd} 103185029Spjd 104168404Spjd/* 105185029Spjd * build up the log data necessary for logging xvattr_t 106185029Spjd * First lr_attr_t is initialized. following the lr_attr_t 107185029Spjd * is the mapsize and attribute bitmap copied from the xvattr_t. 108185029Spjd * Following the bitmap and bitmapsize two 64 bit words are reserved 109185029Spjd * for the create time which may be set. Following the create time 110185029Spjd * records a single 64 bit integer which has the bits to set on 111185029Spjd * replay for the xvattr. 112185029Spjd */ 113185029Spjdstatic void 114185029Spjdzfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) 115185029Spjd{ 116185029Spjd uint32_t *bitmap; 117185029Spjd uint64_t *attrs; 118185029Spjd uint64_t *crtime; 119185029Spjd xoptattr_t *xoap; 120185029Spjd void *scanstamp; 121185029Spjd int i; 122185029Spjd 123185029Spjd xoap = xva_getxoptattr(xvap); 124185029Spjd ASSERT(xoap); 125185029Spjd 126185029Spjd lrattr->lr_attr_masksize = xvap->xva_mapsize; 127185029Spjd bitmap = &lrattr->lr_attr_bitmap; 128185029Spjd for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { 129185029Spjd *bitmap = xvap->xva_reqattrmap[i]; 130185029Spjd } 131185029Spjd 132185029Spjd /* Now pack the attributes up in a single uint64_t */ 133185029Spjd attrs = (uint64_t *)bitmap; 134185029Spjd crtime = attrs + 1; 135185029Spjd scanstamp = (caddr_t)(crtime + 2); 136185029Spjd *attrs = 0; 137185029Spjd if (XVA_ISSET_REQ(xvap, XAT_READONLY)) 138185029Spjd *attrs |= (xoap->xoa_readonly == 0) ? 0 : 139185029Spjd XAT0_READONLY; 140185029Spjd if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) 141185029Spjd *attrs |= (xoap->xoa_hidden == 0) ? 0 : 142185029Spjd XAT0_HIDDEN; 143185029Spjd if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) 144185029Spjd *attrs |= (xoap->xoa_system == 0) ? 0 : 145185029Spjd XAT0_SYSTEM; 146185029Spjd if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) 147185029Spjd *attrs |= (xoap->xoa_archive == 0) ? 0 : 148185029Spjd XAT0_ARCHIVE; 149185029Spjd if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) 150185029Spjd *attrs |= (xoap->xoa_immutable == 0) ? 0 : 151185029Spjd XAT0_IMMUTABLE; 152185029Spjd if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) 153185029Spjd *attrs |= (xoap->xoa_nounlink == 0) ? 0 : 154185029Spjd XAT0_NOUNLINK; 155185029Spjd if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) 156185029Spjd *attrs |= (xoap->xoa_appendonly == 0) ? 0 : 157185029Spjd XAT0_APPENDONLY; 158185029Spjd if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) 159185029Spjd *attrs |= (xoap->xoa_opaque == 0) ? 0 : 160185029Spjd XAT0_APPENDONLY; 161185029Spjd if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) 162185029Spjd *attrs |= (xoap->xoa_nodump == 0) ? 0 : 163185029Spjd XAT0_NODUMP; 164185029Spjd if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) 165185029Spjd *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : 166185029Spjd XAT0_AV_QUARANTINED; 167185029Spjd if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) 168185029Spjd *attrs |= (xoap->xoa_av_modified == 0) ? 0 : 169185029Spjd XAT0_AV_MODIFIED; 170185029Spjd if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) 171185029Spjd ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); 172185029Spjd if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) 173185029Spjd bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); 174219089Spjd if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) 175219089Spjd *attrs |= (xoap->xoa_reparse == 0) ? 0 : 176219089Spjd XAT0_REPARSE; 177219089Spjd if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) 178219089Spjd *attrs |= (xoap->xoa_offline == 0) ? 0 : 179219089Spjd XAT0_OFFLINE; 180219089Spjd if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) 181219089Spjd *attrs |= (xoap->xoa_sparse == 0) ? 0 : 182219089Spjd XAT0_SPARSE; 183185029Spjd} 184185029Spjd 185185029Spjdstatic void * 186185029Spjdzfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) 187185029Spjd{ 188185029Spjd zfs_fuid_t *zfuid; 189185029Spjd uint64_t *fuidloc = start; 190185029Spjd 191185029Spjd /* First copy in the ACE FUIDs */ 192185029Spjd for (zfuid = list_head(&fuidp->z_fuids); zfuid; 193185029Spjd zfuid = list_next(&fuidp->z_fuids, zfuid)) { 194185029Spjd *fuidloc++ = zfuid->z_logfuid; 195185029Spjd } 196185029Spjd return (fuidloc); 197185029Spjd} 198185029Spjd 199185029Spjd 200185029Spjdstatic void * 201185029Spjdzfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) 202185029Spjd{ 203185029Spjd zfs_fuid_domain_t *zdomain; 204185029Spjd 205185029Spjd /* now copy in the domain info, if any */ 206185029Spjd if (fuidp->z_domain_str_sz != 0) { 207185029Spjd for (zdomain = list_head(&fuidp->z_domains); zdomain; 208185029Spjd zdomain = list_next(&fuidp->z_domains, zdomain)) { 209185029Spjd bcopy((void *)zdomain->z_domain, start, 210185029Spjd strlen(zdomain->z_domain) + 1); 211185029Spjd start = (caddr_t)start + 212185029Spjd strlen(zdomain->z_domain) + 1; 213185029Spjd } 214185029Spjd } 215185029Spjd return (start); 216185029Spjd} 217185029Spjd 218185029Spjd/* 219251631Sdelphij * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and 220251631Sdelphij * TK_MKXATTR transactions. 221185029Spjd * 222185029Spjd * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID 223185029Spjd * domain information appended prior to the name. In this case the 224185029Spjd * uid/gid in the log record will be a log centric FUID. 225185029Spjd * 226185029Spjd * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that 227185029Spjd * may contain attributes, ACL and optional fuid information. 228185029Spjd * 229185029Spjd * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify 230185029Spjd * and ACL and normal users/groups in the ACEs. 231185029Spjd * 232185029Spjd * There may be an optional xvattr attribute information similar 233185029Spjd * to zfs_log_setattr. 234185029Spjd * 235185029Spjd * Also, after the file name "domain" strings may be appended. 236168404Spjd */ 237168404Spjdvoid 238185029Spjdzfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 239185029Spjd znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, 240185029Spjd zfs_fuid_info_t *fuidp, vattr_t *vap) 241168404Spjd{ 242168404Spjd itx_t *itx; 243168404Spjd lr_create_t *lr; 244185029Spjd lr_acl_create_t *lracl; 245247187Smm size_t aclsize = (vsecp != NULL) ? vsecp->vsa_aclentsz : 0; 246185029Spjd size_t xvatsize = 0; 247185029Spjd size_t txsize; 248185029Spjd xvattr_t *xvap = (xvattr_t *)vap; 249185029Spjd void *end; 250185029Spjd size_t lrsize; 251168404Spjd size_t namesize = strlen(name) + 1; 252185029Spjd size_t fuidsz = 0; 253168404Spjd 254219089Spjd if (zil_replaying(zilog, tx)) 255168404Spjd return; 256168404Spjd 257185029Spjd /* 258185029Spjd * If we have FUIDs present then add in space for 259185029Spjd * domains and ACE fuid's if any. 260185029Spjd */ 261185029Spjd if (fuidp) { 262185029Spjd fuidsz += fuidp->z_domain_str_sz; 263185029Spjd fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); 264185029Spjd } 265185029Spjd 266185029Spjd if (vap->va_mask & AT_XVATTR) 267185029Spjd xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); 268185029Spjd 269185029Spjd if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || 270185029Spjd (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || 271185029Spjd (int)txtype == TX_MKXATTR) { 272185029Spjd txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; 273185029Spjd lrsize = sizeof (*lr); 274185029Spjd } else { 275185029Spjd txsize = 276185029Spjd sizeof (lr_acl_create_t) + namesize + fuidsz + 277185029Spjd ZIL_ACE_LENGTH(aclsize) + xvatsize; 278185029Spjd lrsize = sizeof (lr_acl_create_t); 279185029Spjd } 280185029Spjd 281185029Spjd itx = zil_itx_create(txtype, txsize); 282185029Spjd 283168404Spjd lr = (lr_create_t *)&itx->itx_lr; 284168404Spjd lr->lr_doid = dzp->z_id; 285168404Spjd lr->lr_foid = zp->z_id; 286219089Spjd lr->lr_mode = zp->z_mode; 287219089Spjd if (!IS_EPHEMERAL(zp->z_uid)) { 288219089Spjd lr->lr_uid = (uint64_t)zp->z_uid; 289185029Spjd } else { 290185029Spjd lr->lr_uid = fuidp->z_fuid_owner; 291185029Spjd } 292219089Spjd if (!IS_EPHEMERAL(zp->z_gid)) { 293219089Spjd lr->lr_gid = (uint64_t)zp->z_gid; 294185029Spjd } else { 295185029Spjd lr->lr_gid = fuidp->z_fuid_group; 296185029Spjd } 297219089Spjd (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 298219089Spjd sizeof (uint64_t)); 299219089Spjd (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 300219089Spjd lr->lr_crtime, sizeof (uint64_t) * 2); 301168404Spjd 302219089Spjd if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev, 303219089Spjd sizeof (lr->lr_rdev)) != 0) 304219089Spjd lr->lr_rdev = 0; 305219089Spjd 306185029Spjd /* 307185029Spjd * Fill in xvattr info if any 308185029Spjd */ 309185029Spjd if (vap->va_mask & AT_XVATTR) { 310185029Spjd zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); 311185029Spjd end = (caddr_t)lr + lrsize + xvatsize; 312185029Spjd } else { 313185029Spjd end = (caddr_t)lr + lrsize; 314185029Spjd } 315185029Spjd 316185029Spjd /* Now fill in any ACL info */ 317185029Spjd 318185029Spjd if (vsecp) { 319185029Spjd lracl = (lr_acl_create_t *)&itx->itx_lr; 320185029Spjd lracl->lr_aclcnt = vsecp->vsa_aclcnt; 321185029Spjd lracl->lr_acl_bytes = aclsize; 322185029Spjd lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 323185029Spjd lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 324185029Spjd if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) 325185029Spjd lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 326185029Spjd else 327185029Spjd lracl->lr_acl_flags = 0; 328185029Spjd 329185029Spjd bcopy(vsecp->vsa_aclentp, end, aclsize); 330185029Spjd end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); 331185029Spjd } 332185029Spjd 333185029Spjd /* drop in FUID info */ 334185029Spjd if (fuidp) { 335185029Spjd end = zfs_log_fuid_ids(fuidp, end); 336185029Spjd end = zfs_log_fuid_domains(fuidp, end); 337185029Spjd } 338185029Spjd /* 339185029Spjd * Now place file name in log record 340185029Spjd */ 341185029Spjd bcopy(name, end, namesize); 342185029Spjd 343219089Spjd zil_itx_assign(zilog, itx, tx); 344168404Spjd} 345168404Spjd 346168404Spjd/* 347251631Sdelphij * Handles both TX_REMOVE and TX_RMDIR transactions. 348168404Spjd */ 349168404Spjdvoid 350185029Spjdzfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 351219089Spjd znode_t *dzp, char *name, uint64_t foid) 352168404Spjd{ 353168404Spjd itx_t *itx; 354168404Spjd lr_remove_t *lr; 355168404Spjd size_t namesize = strlen(name) + 1; 356168404Spjd 357219089Spjd if (zil_replaying(zilog, tx)) 358168404Spjd return; 359168404Spjd 360168404Spjd itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 361168404Spjd lr = (lr_remove_t *)&itx->itx_lr; 362168404Spjd lr->lr_doid = dzp->z_id; 363168404Spjd bcopy(name, (char *)(lr + 1), namesize); 364168404Spjd 365219089Spjd itx->itx_oid = foid; 366219089Spjd 367219089Spjd zil_itx_assign(zilog, itx, tx); 368168404Spjd} 369168404Spjd 370168404Spjd/* 371251631Sdelphij * Handles TX_LINK transactions. 372168404Spjd */ 373168404Spjdvoid 374185029Spjdzfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 375168404Spjd znode_t *dzp, znode_t *zp, char *name) 376168404Spjd{ 377168404Spjd itx_t *itx; 378168404Spjd lr_link_t *lr; 379168404Spjd size_t namesize = strlen(name) + 1; 380168404Spjd 381219089Spjd if (zil_replaying(zilog, tx)) 382168404Spjd return; 383168404Spjd 384168404Spjd itx = zil_itx_create(txtype, sizeof (*lr) + namesize); 385168404Spjd lr = (lr_link_t *)&itx->itx_lr; 386168404Spjd lr->lr_doid = dzp->z_id; 387168404Spjd lr->lr_link_obj = zp->z_id; 388168404Spjd bcopy(name, (char *)(lr + 1), namesize); 389168404Spjd 390219089Spjd zil_itx_assign(zilog, itx, tx); 391168404Spjd} 392168404Spjd 393168404Spjd/* 394251631Sdelphij * Handles TX_SYMLINK transactions. 395168404Spjd */ 396168404Spjdvoid 397185029Spjdzfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 398185029Spjd znode_t *dzp, znode_t *zp, char *name, char *link) 399168404Spjd{ 400168404Spjd itx_t *itx; 401168404Spjd lr_create_t *lr; 402168404Spjd size_t namesize = strlen(name) + 1; 403168404Spjd size_t linksize = strlen(link) + 1; 404168404Spjd 405219089Spjd if (zil_replaying(zilog, tx)) 406168404Spjd return; 407168404Spjd 408168404Spjd itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); 409168404Spjd lr = (lr_create_t *)&itx->itx_lr; 410168404Spjd lr->lr_doid = dzp->z_id; 411168404Spjd lr->lr_foid = zp->z_id; 412219089Spjd lr->lr_uid = zp->z_uid; 413219089Spjd lr->lr_gid = zp->z_gid; 414219089Spjd lr->lr_mode = zp->z_mode; 415219089Spjd (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, 416219089Spjd sizeof (uint64_t)); 417219089Spjd (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), 418219089Spjd lr->lr_crtime, sizeof (uint64_t) * 2); 419168404Spjd bcopy(name, (char *)(lr + 1), namesize); 420168404Spjd bcopy(link, (char *)(lr + 1) + namesize, linksize); 421168404Spjd 422219089Spjd zil_itx_assign(zilog, itx, tx); 423168404Spjd} 424168404Spjd 425168404Spjd/* 426251631Sdelphij * Handles TX_RENAME transactions. 427168404Spjd */ 428168404Spjdvoid 429185029Spjdzfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 430168404Spjd znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) 431168404Spjd{ 432168404Spjd itx_t *itx; 433168404Spjd lr_rename_t *lr; 434168404Spjd size_t snamesize = strlen(sname) + 1; 435168404Spjd size_t dnamesize = strlen(dname) + 1; 436168404Spjd 437219089Spjd if (zil_replaying(zilog, tx)) 438168404Spjd return; 439168404Spjd 440168404Spjd itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); 441168404Spjd lr = (lr_rename_t *)&itx->itx_lr; 442168404Spjd lr->lr_sdoid = sdzp->z_id; 443168404Spjd lr->lr_tdoid = tdzp->z_id; 444168404Spjd bcopy(sname, (char *)(lr + 1), snamesize); 445168404Spjd bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); 446219089Spjd itx->itx_oid = szp->z_id; 447168404Spjd 448219089Spjd zil_itx_assign(zilog, itx, tx); 449168404Spjd} 450168404Spjd 451168404Spjd/* 452251631Sdelphij * Handles TX_WRITE transactions. 453168404Spjd */ 454168404Spjdssize_t zfs_immediate_write_sz = 32768; 455168404Spjd 456168404Spjdvoid 457168404Spjdzfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 458185029Spjd znode_t *zp, offset_t off, ssize_t resid, int ioflag) 459168404Spjd{ 460168404Spjd itx_wr_state_t write_state; 461185029Spjd boolean_t slogging; 462185029Spjd uintptr_t fsync_cnt; 463219089Spjd ssize_t immediate_write_sz; 464168404Spjd 465219089Spjd if (zil_replaying(zilog, tx) || zp->z_unlinked) 466168404Spjd return; 467168404Spjd 468219089Spjd immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) 469219089Spjd ? 0 : zfs_immediate_write_sz; 470209962Smm 471219089Spjd slogging = spa_has_slogs(zilog->zl_spa) && 472219089Spjd (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); 473219089Spjd if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) 474168404Spjd write_state = WR_INDIRECT; 475185029Spjd else if (ioflag & (FSYNC | FDSYNC)) 476168404Spjd write_state = WR_COPIED; 477168404Spjd else 478168404Spjd write_state = WR_NEED_COPY; 479168404Spjd 480185029Spjd if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { 481185029Spjd (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); 482185029Spjd } 483185029Spjd 484185029Spjd while (resid) { 485185029Spjd itx_t *itx; 486185029Spjd lr_write_t *lr; 487185029Spjd ssize_t len; 488185029Spjd 489185029Spjd /* 490185029Spjd * If the write would overflow the largest block then split it. 491185029Spjd */ 492185029Spjd if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) 493185029Spjd len = SPA_MAXBLOCKSIZE >> 1; 494185029Spjd else 495185029Spjd len = resid; 496185029Spjd 497185029Spjd itx = zil_itx_create(txtype, sizeof (*lr) + 498185029Spjd (write_state == WR_COPIED ? len : 0)); 499185029Spjd lr = (lr_write_t *)&itx->itx_lr; 500185029Spjd if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, 501209962Smm zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { 502219089Spjd zil_itx_destroy(itx); 503168404Spjd itx = zil_itx_create(txtype, sizeof (*lr)); 504168404Spjd lr = (lr_write_t *)&itx->itx_lr; 505168404Spjd write_state = WR_NEED_COPY; 506168404Spjd } 507168404Spjd 508185029Spjd itx->itx_wr_state = write_state; 509185029Spjd if (write_state == WR_NEED_COPY) 510185029Spjd itx->itx_sod += len; 511185029Spjd lr->lr_foid = zp->z_id; 512185029Spjd lr->lr_offset = off; 513185029Spjd lr->lr_length = len; 514185029Spjd lr->lr_blkoff = 0; 515185029Spjd BP_ZERO(&lr->lr_blkptr); 516168404Spjd 517185029Spjd itx->itx_private = zp->z_zfsvfs; 518168404Spjd 519219089Spjd if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && 520219089Spjd (fsync_cnt == 0)) 521185029Spjd itx->itx_sync = B_FALSE; 522185029Spjd 523219089Spjd zil_itx_assign(zilog, itx, tx); 524185029Spjd 525185029Spjd off += len; 526185029Spjd resid -= len; 527185029Spjd } 528168404Spjd} 529168404Spjd 530168404Spjd/* 531251631Sdelphij * Handles TX_TRUNCATE transactions. 532168404Spjd */ 533168404Spjdvoid 534168404Spjdzfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 535168404Spjd znode_t *zp, uint64_t off, uint64_t len) 536168404Spjd{ 537168404Spjd itx_t *itx; 538168404Spjd lr_truncate_t *lr; 539168404Spjd 540219089Spjd if (zil_replaying(zilog, tx) || zp->z_unlinked) 541168404Spjd return; 542168404Spjd 543168404Spjd itx = zil_itx_create(txtype, sizeof (*lr)); 544168404Spjd lr = (lr_truncate_t *)&itx->itx_lr; 545168404Spjd lr->lr_foid = zp->z_id; 546168404Spjd lr->lr_offset = off; 547168404Spjd lr->lr_length = len; 548168404Spjd 549168404Spjd itx->itx_sync = (zp->z_sync_cnt != 0); 550219089Spjd zil_itx_assign(zilog, itx, tx); 551168404Spjd} 552168404Spjd 553168404Spjd/* 554251631Sdelphij * Handles TX_SETATTR transactions. 555168404Spjd */ 556168404Spjdvoid 557168404Spjdzfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 558185029Spjd znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 559168404Spjd{ 560185029Spjd itx_t *itx; 561185029Spjd lr_setattr_t *lr; 562185029Spjd xvattr_t *xvap = (xvattr_t *)vap; 563185029Spjd size_t recsize = sizeof (lr_setattr_t); 564185029Spjd void *start; 565168404Spjd 566219089Spjd if (zil_replaying(zilog, tx) || zp->z_unlinked) 567168404Spjd return; 568168404Spjd 569185029Spjd /* 570185029Spjd * If XVATTR set, then log record size needs to allow 571185029Spjd * for lr_attr_t + xvattr mask, mapsize and create time 572185029Spjd * plus actual attribute values 573185029Spjd */ 574185029Spjd if (vap->va_mask & AT_XVATTR) 575185029Spjd recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 576185029Spjd 577185029Spjd if (fuidp) 578185029Spjd recsize += fuidp->z_domain_str_sz; 579185029Spjd 580185029Spjd itx = zil_itx_create(txtype, recsize); 581168404Spjd lr = (lr_setattr_t *)&itx->itx_lr; 582168404Spjd lr->lr_foid = zp->z_id; 583168404Spjd lr->lr_mask = (uint64_t)mask_applied; 584168404Spjd lr->lr_mode = (uint64_t)vap->va_mode; 585185029Spjd if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 586185029Spjd lr->lr_uid = fuidp->z_fuid_owner; 587185029Spjd else 588185029Spjd lr->lr_uid = (uint64_t)vap->va_uid; 589185029Spjd 590185029Spjd if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 591185029Spjd lr->lr_gid = fuidp->z_fuid_group; 592185029Spjd else 593185029Spjd lr->lr_gid = (uint64_t)vap->va_gid; 594185029Spjd 595168404Spjd lr->lr_size = (uint64_t)vap->va_size; 596168404Spjd ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 597168404Spjd ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 598185029Spjd start = (lr_setattr_t *)(lr + 1); 599185029Spjd if (vap->va_mask & AT_XVATTR) { 600185029Spjd zfs_log_xvattr((lr_attr_t *)start, xvap); 601185029Spjd start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 602185029Spjd } 603168404Spjd 604185029Spjd /* 605185029Spjd * Now stick on domain information if any on end 606185029Spjd */ 607185029Spjd 608185029Spjd if (fuidp) 609185029Spjd (void) zfs_log_fuid_domains(fuidp, start); 610185029Spjd 611168404Spjd itx->itx_sync = (zp->z_sync_cnt != 0); 612219089Spjd zil_itx_assign(zilog, itx, tx); 613168404Spjd} 614168404Spjd 615168404Spjd/* 616251631Sdelphij * Handles TX_ACL transactions. 617168404Spjd */ 618168404Spjdvoid 619185029Spjdzfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 620185029Spjd vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 621168404Spjd{ 622168404Spjd itx_t *itx; 623185029Spjd lr_acl_v0_t *lrv0; 624168404Spjd lr_acl_t *lr; 625185029Spjd int txtype; 626185029Spjd int lrsize; 627185029Spjd size_t txsize; 628185029Spjd size_t aclbytes = vsecp->vsa_aclentsz; 629168404Spjd 630219089Spjd if (zil_replaying(zilog, tx) || zp->z_unlinked) 631168404Spjd return; 632168404Spjd 633185029Spjd txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? 634185029Spjd TX_ACL_V0 : TX_ACL; 635185029Spjd 636185029Spjd if (txtype == TX_ACL) 637185029Spjd lrsize = sizeof (*lr); 638185029Spjd else 639185029Spjd lrsize = sizeof (*lrv0); 640185029Spjd 641185029Spjd txsize = lrsize + 642185029Spjd ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + 643185029Spjd (fuidp ? fuidp->z_domain_str_sz : 0) + 644185029Spjd sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); 645185029Spjd 646185029Spjd itx = zil_itx_create(txtype, txsize); 647185029Spjd 648168404Spjd lr = (lr_acl_t *)&itx->itx_lr; 649168404Spjd lr->lr_foid = zp->z_id; 650185029Spjd if (txtype == TX_ACL) { 651185029Spjd lr->lr_acl_bytes = aclbytes; 652185029Spjd lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 653185029Spjd lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 654185029Spjd if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 655185029Spjd lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 656185029Spjd else 657185029Spjd lr->lr_acl_flags = 0; 658185029Spjd } 659185029Spjd lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 660168404Spjd 661185029Spjd if (txtype == TX_ACL_V0) { 662185029Spjd lrv0 = (lr_acl_v0_t *)lr; 663185029Spjd bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 664185029Spjd } else { 665185029Spjd void *start = (ace_t *)(lr + 1); 666185029Spjd 667185029Spjd bcopy(vsecp->vsa_aclentp, start, aclbytes); 668185029Spjd 669185029Spjd start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); 670185029Spjd 671185029Spjd if (fuidp) { 672185029Spjd start = zfs_log_fuid_ids(fuidp, start); 673185029Spjd (void) zfs_log_fuid_domains(fuidp, start); 674185029Spjd } 675185029Spjd } 676185029Spjd 677168404Spjd itx->itx_sync = (zp->z_sync_cnt != 0); 678219089Spjd zil_itx_assign(zilog, itx, tx); 679168404Spjd} 680