1219089Spjd/* 2219089Spjd * CDDL HEADER START 3219089Spjd * 4219089Spjd * The contents of this file are subject to the terms of the 5219089Spjd * Common Development and Distribution License (the "License"). 6219089Spjd * You may not use this file except in compliance with the License. 7219089Spjd * 8219089Spjd * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9219089Spjd * or http://www.opensolaris.org/os/licensing. 10219089Spjd * See the License for the specific language governing permissions 11219089Spjd * and limitations under the License. 12219089Spjd * 13219089Spjd * When distributing Covered Code, include this CDDL HEADER in each 14219089Spjd * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15219089Spjd * If applicable, add the following below this CDDL HEADER, with the 16219089Spjd * fields enclosed by brackets "[]" replaced with your own identifying 17219089Spjd * information: Portions Copyright [yyyy] [name of copyright owner] 18219089Spjd * 19219089Spjd * CDDL HEADER END 20219089Spjd */ 21236884Smm 22219089Spjd/* 23219089Spjd * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 24226724Smm * Portions Copyright 2011 iXsystems, Inc 25249195Smm * Copyright (c) 2013 by Delphix. All rights reserved. 26288549Smav * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. 27297112Smav * Copyright (c) 2014 Integros [integros.com] 28219089Spjd */ 29219089Spjd 30219089Spjd#include <sys/zfs_context.h> 31219089Spjd#include <sys/types.h> 32219089Spjd#include <sys/param.h> 33219089Spjd#include <sys/systm.h> 34219089Spjd#include <sys/sysmacros.h> 35219089Spjd#include <sys/dmu.h> 36219089Spjd#include <sys/dmu_impl.h> 37219089Spjd#include <sys/dmu_objset.h> 38219089Spjd#include <sys/dbuf.h> 39219089Spjd#include <sys/dnode.h> 40219089Spjd#include <sys/zap.h> 41219089Spjd#include <sys/sa.h> 42219089Spjd#include <sys/sunddi.h> 43219089Spjd#include <sys/sa_impl.h> 44219089Spjd#include <sys/dnode.h> 45219089Spjd#include <sys/errno.h> 46219089Spjd#include <sys/zfs_context.h> 47219089Spjd 48219089Spjd/* 49219089Spjd * ZFS System attributes: 50219089Spjd * 51219089Spjd * A generic mechanism to allow for arbitrary attributes 52219089Spjd * to be stored in a dnode. The data will be stored in the bonus buffer of 53219089Spjd * the dnode and if necessary a special "spill" block will be used to handle 54219089Spjd * overflow situations. The spill block will be sized to fit the data 55219089Spjd * from 512 - 128K. When a spill block is used the BP (blkptr_t) for the 56219089Spjd * spill block is stored at the end of the current bonus buffer. Any 57219089Spjd * attributes that would be in the way of the blkptr_t will be relocated 58219089Spjd * into the spill block. 59219089Spjd * 60219089Spjd * Attribute registration: 61219089Spjd * 62219089Spjd * Stored persistently on a per dataset basis 63219089Spjd * a mapping between attribute "string" names and their actual attribute 64219089Spjd * numeric values, length, and byteswap function. The names are only used 65219089Spjd * during registration. All attributes are known by their unique attribute 66219089Spjd * id value. If an attribute can have a variable size then the value 67219089Spjd * 0 will be used to indicate this. 68219089Spjd * 69219089Spjd * Attribute Layout: 70219089Spjd * 71219089Spjd * Attribute layouts are a way to compactly store multiple attributes, but 72219089Spjd * without taking the overhead associated with managing each attribute 73219089Spjd * individually. Since you will typically have the same set of attributes 74219089Spjd * stored in the same order a single table will be used to represent that 75219089Spjd * layout. The ZPL for example will usually have only about 10 different 76219089Spjd * layouts (regular files, device files, symlinks, 77219089Spjd * regular files + scanstamp, files/dir with extended attributes, and then 78219089Spjd * you have the possibility of all of those minus ACL, because it would 79219089Spjd * be kicked out into the spill block) 80219089Spjd * 81219089Spjd * Layouts are simply an array of the attributes and their 82219089Spjd * ordering i.e. [0, 1, 4, 5, 2] 83219089Spjd * 84219089Spjd * Each distinct layout is given a unique layout number and that is whats 85219089Spjd * stored in the header at the beginning of the SA data buffer. 86219089Spjd * 87219089Spjd * A layout only covers a single dbuf (bonus or spill). If a set of 88219089Spjd * attributes is split up between the bonus buffer and a spill buffer then 89219089Spjd * two different layouts will be used. This allows us to byteswap the 90219089Spjd * spill without looking at the bonus buffer and keeps the on disk format of 91219089Spjd * the bonus and spill buffer the same. 92219089Spjd * 93219089Spjd * Adding a single attribute will cause the entire set of attributes to 94219089Spjd * be rewritten and could result in a new layout number being constructed 95219089Spjd * as part of the rewrite if no such layout exists for the new set of 96219089Spjd * attribues. The new attribute will be appended to the end of the already 97219089Spjd * existing attributes. 98219089Spjd * 99219089Spjd * Both the attribute registration and attribute layout information are 100219089Spjd * stored in normal ZAP attributes. Their should be a small number of 101219089Spjd * known layouts and the set of attributes is assumed to typically be quite 102219089Spjd * small. 103219089Spjd * 104219089Spjd * The registered attributes and layout "table" information is maintained 105219089Spjd * in core and a special "sa_os_t" is attached to the objset_t. 106219089Spjd * 107219089Spjd * A special interface is provided to allow for quickly applying 108219089Spjd * a large set of attributes at once. sa_replace_all_by_template() is 109219089Spjd * used to set an array of attributes. This is used by the ZPL when 110219089Spjd * creating a brand new file. The template that is passed into the function 111219089Spjd * specifies the attribute, size for variable length attributes, location of 112219089Spjd * data and special "data locator" function if the data isn't in a contiguous 113219089Spjd * location. 114219089Spjd * 115219089Spjd * Byteswap implications: 116251631Sdelphij * 117219089Spjd * Since the SA attributes are not entirely self describing we can't do 118219089Spjd * the normal byteswap processing. The special ZAP layout attribute and 119219089Spjd * attribute registration attributes define the byteswap function and the 120219089Spjd * size of the attributes, unless it is variable sized. 121219089Spjd * The normal ZFS byteswapping infrastructure assumes you don't need 122219089Spjd * to read any objects in order to do the necessary byteswapping. Whereas 123219089Spjd * SA attributes can only be properly byteswapped if the dataset is opened 124219089Spjd * and the layout/attribute ZAP attributes are available. Because of this 125219089Spjd * the SA attributes will be byteswapped when they are first accessed by 126219089Spjd * the SA code that will read the SA data. 127219089Spjd */ 128219089Spjd 129219089Spjdtypedef void (sa_iterfunc_t)(void *hdr, void *addr, sa_attr_type_t, 130219089Spjd uint16_t length, int length_idx, boolean_t, void *userp); 131219089Spjd 132219089Spjdstatic int sa_build_index(sa_handle_t *hdl, sa_buf_type_t buftype); 133219089Spjdstatic void sa_idx_tab_hold(objset_t *os, sa_idx_tab_t *idx_tab); 134219089Spjdstatic void *sa_find_idx_tab(objset_t *os, dmu_object_type_t bonustype, 135219089Spjd void *data); 136219089Spjdstatic void sa_idx_tab_rele(objset_t *os, void *arg); 137219089Spjdstatic void sa_copy_data(sa_data_locator_t *func, void *start, void *target, 138219089Spjd int buflen); 139219089Spjdstatic int sa_modify_attrs(sa_handle_t *hdl, sa_attr_type_t newattr, 140219089Spjd sa_data_op_t action, sa_data_locator_t *locator, void *datastart, 141219089Spjd uint16_t buflen, dmu_tx_t *tx); 142219089Spjd 143219089Spjdarc_byteswap_func_t *sa_bswap_table[] = { 144219089Spjd byteswap_uint64_array, 145219089Spjd byteswap_uint32_array, 146219089Spjd byteswap_uint16_array, 147219089Spjd byteswap_uint8_array, 148219089Spjd zfs_acl_byteswap, 149219089Spjd}; 150219089Spjd 151219089Spjd#define SA_COPY_DATA(f, s, t, l) \ 152219089Spjd { \ 153219089Spjd if (f == NULL) { \ 154219089Spjd if (l == 8) { \ 155219089Spjd *(uint64_t *)t = *(uint64_t *)s; \ 156219089Spjd } else if (l == 16) { \ 157219089Spjd *(uint64_t *)t = *(uint64_t *)s; \ 158219089Spjd *(uint64_t *)((uintptr_t)t + 8) = \ 159219089Spjd *(uint64_t *)((uintptr_t)s + 8); \ 160219089Spjd } else { \ 161219089Spjd bcopy(s, t, l); \ 162219089Spjd } \ 163219089Spjd } else \ 164219089Spjd sa_copy_data(f, s, t, l); \ 165219089Spjd } 166219089Spjd 167219089Spjd/* 168219089Spjd * This table is fixed and cannot be changed. Its purpose is to 169219089Spjd * allow the SA code to work with both old/new ZPL file systems. 170219089Spjd * It contains the list of legacy attributes. These attributes aren't 171219089Spjd * stored in the "attribute" registry zap objects, since older ZPL file systems 172219089Spjd * won't have the registry. Only objsets of type ZFS_TYPE_FILESYSTEM will 173219089Spjd * use this static table. 174219089Spjd */ 175219089Spjdsa_attr_reg_t sa_legacy_attrs[] = { 176219089Spjd {"ZPL_ATIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 0}, 177219089Spjd {"ZPL_MTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 1}, 178219089Spjd {"ZPL_CTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 2}, 179219089Spjd {"ZPL_CRTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 3}, 180219089Spjd {"ZPL_GEN", sizeof (uint64_t), SA_UINT64_ARRAY, 4}, 181219089Spjd {"ZPL_MODE", sizeof (uint64_t), SA_UINT64_ARRAY, 5}, 182219089Spjd {"ZPL_SIZE", sizeof (uint64_t), SA_UINT64_ARRAY, 6}, 183219089Spjd {"ZPL_PARENT", sizeof (uint64_t), SA_UINT64_ARRAY, 7}, 184219089Spjd {"ZPL_LINKS", sizeof (uint64_t), SA_UINT64_ARRAY, 8}, 185219089Spjd {"ZPL_XATTR", sizeof (uint64_t), SA_UINT64_ARRAY, 9}, 186219089Spjd {"ZPL_RDEV", sizeof (uint64_t), SA_UINT64_ARRAY, 10}, 187219089Spjd {"ZPL_FLAGS", sizeof (uint64_t), SA_UINT64_ARRAY, 11}, 188219089Spjd {"ZPL_UID", sizeof (uint64_t), SA_UINT64_ARRAY, 12}, 189219089Spjd {"ZPL_GID", sizeof (uint64_t), SA_UINT64_ARRAY, 13}, 190219089Spjd {"ZPL_PAD", sizeof (uint64_t) * 4, SA_UINT64_ARRAY, 14}, 191219089Spjd {"ZPL_ZNODE_ACL", 88, SA_UINT8_ARRAY, 15}, 192219089Spjd}; 193219089Spjd 194219089Spjd/* 195219089Spjd * This is only used for objects of type DMU_OT_ZNODE 196219089Spjd */ 197219089Spjdsa_attr_type_t sa_legacy_zpl_layout[] = { 198219089Spjd 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 199219089Spjd}; 200219089Spjd 201219089Spjd/* 202219089Spjd * Special dummy layout used for buffers with no attributes. 203219089Spjd */ 204219089Spjdsa_attr_type_t sa_dummy_zpl_layout[] = { 0 }; 205219089Spjd 206219089Spjdstatic int sa_legacy_attr_count = 16; 207219089Spjdstatic kmem_cache_t *sa_cache = NULL; 208219089Spjd 209219089Spjd/*ARGSUSED*/ 210219089Spjdstatic int 211219089Spjdsa_cache_constructor(void *buf, void *unused, int kmflag) 212219089Spjd{ 213219089Spjd sa_handle_t *hdl = buf; 214219089Spjd 215219089Spjd mutex_init(&hdl->sa_lock, NULL, MUTEX_DEFAULT, NULL); 216219089Spjd return (0); 217219089Spjd} 218219089Spjd 219219089Spjd/*ARGSUSED*/ 220219089Spjdstatic void 221219089Spjdsa_cache_destructor(void *buf, void *unused) 222219089Spjd{ 223219089Spjd sa_handle_t *hdl = buf; 224219089Spjd mutex_destroy(&hdl->sa_lock); 225219089Spjd} 226219089Spjd 227219089Spjdvoid 228219089Spjdsa_cache_init(void) 229219089Spjd{ 230219089Spjd sa_cache = kmem_cache_create("sa_cache", 231219089Spjd sizeof (sa_handle_t), 0, sa_cache_constructor, 232219089Spjd sa_cache_destructor, NULL, NULL, NULL, 0); 233219089Spjd} 234219089Spjd 235219089Spjdvoid 236219089Spjdsa_cache_fini(void) 237219089Spjd{ 238219089Spjd if (sa_cache) 239219089Spjd kmem_cache_destroy(sa_cache); 240219089Spjd} 241219089Spjd 242219089Spjdstatic int 243219089Spjdlayout_num_compare(const void *arg1, const void *arg2) 244219089Spjd{ 245219089Spjd const sa_lot_t *node1 = arg1; 246219089Spjd const sa_lot_t *node2 = arg2; 247219089Spjd 248219089Spjd if (node1->lot_num > node2->lot_num) 249219089Spjd return (1); 250219089Spjd else if (node1->lot_num < node2->lot_num) 251219089Spjd return (-1); 252219089Spjd return (0); 253219089Spjd} 254219089Spjd 255219089Spjdstatic int 256219089Spjdlayout_hash_compare(const void *arg1, const void *arg2) 257219089Spjd{ 258219089Spjd const sa_lot_t *node1 = arg1; 259219089Spjd const sa_lot_t *node2 = arg2; 260219089Spjd 261219089Spjd if (node1->lot_hash > node2->lot_hash) 262219089Spjd return (1); 263219089Spjd if (node1->lot_hash < node2->lot_hash) 264219089Spjd return (-1); 265219089Spjd if (node1->lot_instance > node2->lot_instance) 266219089Spjd return (1); 267219089Spjd if (node1->lot_instance < node2->lot_instance) 268219089Spjd return (-1); 269219089Spjd return (0); 270219089Spjd} 271219089Spjd 272219089Spjdboolean_t 273219089Spjdsa_layout_equal(sa_lot_t *tbf, sa_attr_type_t *attrs, int count) 274219089Spjd{ 275219089Spjd int i; 276219089Spjd 277219089Spjd if (count != tbf->lot_attr_count) 278219089Spjd return (1); 279219089Spjd 280219089Spjd for (i = 0; i != count; i++) { 281219089Spjd if (attrs[i] != tbf->lot_attrs[i]) 282219089Spjd return (1); 283219089Spjd } 284219089Spjd return (0); 285219089Spjd} 286219089Spjd 287219089Spjd#define SA_ATTR_HASH(attr) (zfs_crc64_table[(-1ULL ^ attr) & 0xFF]) 288219089Spjd 289219089Spjdstatic uint64_t 290219089Spjdsa_layout_info_hash(sa_attr_type_t *attrs, int attr_count) 291219089Spjd{ 292219089Spjd int i; 293219089Spjd uint64_t crc = -1ULL; 294219089Spjd 295219089Spjd for (i = 0; i != attr_count; i++) 296219089Spjd crc ^= SA_ATTR_HASH(attrs[i]); 297219089Spjd 298219089Spjd return (crc); 299219089Spjd} 300219089Spjd 301219089Spjdstatic int 302219089Spjdsa_get_spill(sa_handle_t *hdl) 303219089Spjd{ 304219089Spjd int rc; 305219089Spjd if (hdl->sa_spill == NULL) { 306219089Spjd if ((rc = dmu_spill_hold_existing(hdl->sa_bonus, NULL, 307219089Spjd &hdl->sa_spill)) == 0) 308219089Spjd VERIFY(0 == sa_build_index(hdl, SA_SPILL)); 309219089Spjd } else { 310219089Spjd rc = 0; 311219089Spjd } 312219089Spjd 313219089Spjd return (rc); 314219089Spjd} 315219089Spjd 316219089Spjd/* 317219089Spjd * Main attribute lookup/update function 318219089Spjd * returns 0 for success or non zero for failures 319219089Spjd * 320219089Spjd * Operates on bulk array, first failure will abort further processing 321219089Spjd */ 322219089Spjdint 323219089Spjdsa_attr_op(sa_handle_t *hdl, sa_bulk_attr_t *bulk, int count, 324219089Spjd sa_data_op_t data_op, dmu_tx_t *tx) 325219089Spjd{ 326219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 327219089Spjd int i; 328219089Spjd int error = 0; 329219089Spjd sa_buf_type_t buftypes; 330219089Spjd 331219089Spjd buftypes = 0; 332219089Spjd 333219089Spjd ASSERT(count > 0); 334219089Spjd for (i = 0; i != count; i++) { 335219089Spjd ASSERT(bulk[i].sa_attr <= hdl->sa_os->os_sa->sa_num_attrs); 336219089Spjd 337219089Spjd bulk[i].sa_addr = NULL; 338219089Spjd /* First check the bonus buffer */ 339219089Spjd 340219089Spjd if (hdl->sa_bonus_tab && TOC_ATTR_PRESENT( 341219089Spjd hdl->sa_bonus_tab->sa_idx_tab[bulk[i].sa_attr])) { 342219089Spjd SA_ATTR_INFO(sa, hdl->sa_bonus_tab, 343219089Spjd SA_GET_HDR(hdl, SA_BONUS), 344219089Spjd bulk[i].sa_attr, bulk[i], SA_BONUS, hdl); 345219089Spjd if (tx && !(buftypes & SA_BONUS)) { 346219089Spjd dmu_buf_will_dirty(hdl->sa_bonus, tx); 347219089Spjd buftypes |= SA_BONUS; 348219089Spjd } 349219089Spjd } 350219089Spjd if (bulk[i].sa_addr == NULL && 351219089Spjd ((error = sa_get_spill(hdl)) == 0)) { 352219089Spjd if (TOC_ATTR_PRESENT( 353219089Spjd hdl->sa_spill_tab->sa_idx_tab[bulk[i].sa_attr])) { 354219089Spjd SA_ATTR_INFO(sa, hdl->sa_spill_tab, 355219089Spjd SA_GET_HDR(hdl, SA_SPILL), 356219089Spjd bulk[i].sa_attr, bulk[i], SA_SPILL, hdl); 357219089Spjd if (tx && !(buftypes & SA_SPILL) && 358219089Spjd bulk[i].sa_size == bulk[i].sa_length) { 359219089Spjd dmu_buf_will_dirty(hdl->sa_spill, tx); 360219089Spjd buftypes |= SA_SPILL; 361219089Spjd } 362219089Spjd } 363219089Spjd } 364219089Spjd if (error && error != ENOENT) { 365219089Spjd return ((error == ECKSUM) ? EIO : error); 366219089Spjd } 367219089Spjd 368219089Spjd switch (data_op) { 369219089Spjd case SA_LOOKUP: 370219089Spjd if (bulk[i].sa_addr == NULL) 371249195Smm return (SET_ERROR(ENOENT)); 372219089Spjd if (bulk[i].sa_data) { 373219089Spjd SA_COPY_DATA(bulk[i].sa_data_func, 374219089Spjd bulk[i].sa_addr, bulk[i].sa_data, 375219089Spjd bulk[i].sa_size); 376219089Spjd } 377219089Spjd continue; 378219089Spjd 379219089Spjd case SA_UPDATE: 380219089Spjd /* existing rewrite of attr */ 381219089Spjd if (bulk[i].sa_addr && 382219089Spjd bulk[i].sa_size == bulk[i].sa_length) { 383219089Spjd SA_COPY_DATA(bulk[i].sa_data_func, 384219089Spjd bulk[i].sa_data, bulk[i].sa_addr, 385219089Spjd bulk[i].sa_length); 386219089Spjd continue; 387219089Spjd } else if (bulk[i].sa_addr) { /* attr size change */ 388219089Spjd error = sa_modify_attrs(hdl, bulk[i].sa_attr, 389219089Spjd SA_REPLACE, bulk[i].sa_data_func, 390219089Spjd bulk[i].sa_data, bulk[i].sa_length, tx); 391219089Spjd } else { /* adding new attribute */ 392219089Spjd error = sa_modify_attrs(hdl, bulk[i].sa_attr, 393219089Spjd SA_ADD, bulk[i].sa_data_func, 394219089Spjd bulk[i].sa_data, bulk[i].sa_length, tx); 395219089Spjd } 396219089Spjd if (error) 397219089Spjd return (error); 398219089Spjd break; 399219089Spjd } 400219089Spjd } 401219089Spjd return (error); 402219089Spjd} 403219089Spjd 404219089Spjdstatic sa_lot_t * 405219089Spjdsa_add_layout_entry(objset_t *os, sa_attr_type_t *attrs, int attr_count, 406219089Spjd uint64_t lot_num, uint64_t hash, boolean_t zapadd, dmu_tx_t *tx) 407219089Spjd{ 408219089Spjd sa_os_t *sa = os->os_sa; 409219089Spjd sa_lot_t *tb, *findtb; 410219089Spjd int i; 411219089Spjd avl_index_t loc; 412219089Spjd 413219089Spjd ASSERT(MUTEX_HELD(&sa->sa_lock)); 414219089Spjd tb = kmem_zalloc(sizeof (sa_lot_t), KM_SLEEP); 415219089Spjd tb->lot_attr_count = attr_count; 416219089Spjd tb->lot_attrs = kmem_alloc(sizeof (sa_attr_type_t) * attr_count, 417219089Spjd KM_SLEEP); 418219089Spjd bcopy(attrs, tb->lot_attrs, sizeof (sa_attr_type_t) * attr_count); 419219089Spjd tb->lot_num = lot_num; 420219089Spjd tb->lot_hash = hash; 421219089Spjd tb->lot_instance = 0; 422219089Spjd 423219089Spjd if (zapadd) { 424219089Spjd char attr_name[8]; 425219089Spjd 426219089Spjd if (sa->sa_layout_attr_obj == 0) { 427236884Smm sa->sa_layout_attr_obj = zap_create_link(os, 428236884Smm DMU_OT_SA_ATTR_LAYOUTS, 429236884Smm sa->sa_master_obj, SA_LAYOUTS, tx); 430219089Spjd } 431219089Spjd 432219089Spjd (void) snprintf(attr_name, sizeof (attr_name), 433219089Spjd "%d", (int)lot_num); 434219089Spjd VERIFY(0 == zap_update(os, os->os_sa->sa_layout_attr_obj, 435219089Spjd attr_name, 2, attr_count, attrs, tx)); 436219089Spjd } 437219089Spjd 438219089Spjd list_create(&tb->lot_idx_tab, sizeof (sa_idx_tab_t), 439219089Spjd offsetof(sa_idx_tab_t, sa_next)); 440219089Spjd 441219089Spjd for (i = 0; i != attr_count; i++) { 442219089Spjd if (sa->sa_attr_table[tb->lot_attrs[i]].sa_length == 0) 443219089Spjd tb->lot_var_sizes++; 444219089Spjd } 445219089Spjd 446219089Spjd avl_add(&sa->sa_layout_num_tree, tb); 447219089Spjd 448219089Spjd /* verify we don't have a hash collision */ 449219089Spjd if ((findtb = avl_find(&sa->sa_layout_hash_tree, tb, &loc)) != NULL) { 450219089Spjd for (; findtb && findtb->lot_hash == hash; 451219089Spjd findtb = AVL_NEXT(&sa->sa_layout_hash_tree, findtb)) { 452219089Spjd if (findtb->lot_instance != tb->lot_instance) 453219089Spjd break; 454219089Spjd tb->lot_instance++; 455219089Spjd } 456219089Spjd } 457219089Spjd avl_add(&sa->sa_layout_hash_tree, tb); 458219089Spjd return (tb); 459219089Spjd} 460219089Spjd 461219089Spjdstatic void 462219089Spjdsa_find_layout(objset_t *os, uint64_t hash, sa_attr_type_t *attrs, 463219089Spjd int count, dmu_tx_t *tx, sa_lot_t **lot) 464219089Spjd{ 465219089Spjd sa_lot_t *tb, tbsearch; 466219089Spjd avl_index_t loc; 467219089Spjd sa_os_t *sa = os->os_sa; 468219089Spjd boolean_t found = B_FALSE; 469219089Spjd 470219089Spjd mutex_enter(&sa->sa_lock); 471219089Spjd tbsearch.lot_hash = hash; 472219089Spjd tbsearch.lot_instance = 0; 473219089Spjd tb = avl_find(&sa->sa_layout_hash_tree, &tbsearch, &loc); 474219089Spjd if (tb) { 475219089Spjd for (; tb && tb->lot_hash == hash; 476219089Spjd tb = AVL_NEXT(&sa->sa_layout_hash_tree, tb)) { 477219089Spjd if (sa_layout_equal(tb, attrs, count) == 0) { 478219089Spjd found = B_TRUE; 479219089Spjd break; 480219089Spjd } 481219089Spjd } 482219089Spjd } 483219089Spjd if (!found) { 484219089Spjd tb = sa_add_layout_entry(os, attrs, count, 485219089Spjd avl_numnodes(&sa->sa_layout_num_tree), hash, B_TRUE, tx); 486219089Spjd } 487219089Spjd mutex_exit(&sa->sa_lock); 488219089Spjd *lot = tb; 489219089Spjd} 490219089Spjd 491219089Spjdstatic int 492219089Spjdsa_resize_spill(sa_handle_t *hdl, uint32_t size, dmu_tx_t *tx) 493219089Spjd{ 494219089Spjd int error; 495219089Spjd uint32_t blocksize; 496219089Spjd 497219089Spjd if (size == 0) { 498219089Spjd blocksize = SPA_MINBLOCKSIZE; 499276081Sdelphij } else if (size > SPA_OLD_MAXBLOCKSIZE) { 500219089Spjd ASSERT(0); 501249195Smm return (SET_ERROR(EFBIG)); 502219089Spjd } else { 503219089Spjd blocksize = P2ROUNDUP_TYPED(size, SPA_MINBLOCKSIZE, uint32_t); 504219089Spjd } 505219089Spjd 506219089Spjd error = dbuf_spill_set_blksz(hdl->sa_spill, blocksize, tx); 507219089Spjd ASSERT(error == 0); 508219089Spjd return (error); 509219089Spjd} 510219089Spjd 511219089Spjdstatic void 512219089Spjdsa_copy_data(sa_data_locator_t *func, void *datastart, void *target, int buflen) 513219089Spjd{ 514219089Spjd if (func == NULL) { 515219089Spjd bcopy(datastart, target, buflen); 516219089Spjd } else { 517219089Spjd boolean_t start; 518219089Spjd int bytes; 519219089Spjd void *dataptr; 520219089Spjd void *saptr = target; 521219089Spjd uint32_t length; 522219089Spjd 523219089Spjd start = B_TRUE; 524219089Spjd bytes = 0; 525219089Spjd while (bytes < buflen) { 526219089Spjd func(&dataptr, &length, buflen, start, datastart); 527219089Spjd bcopy(dataptr, saptr, length); 528219089Spjd saptr = (void *)((caddr_t)saptr + length); 529219089Spjd bytes += length; 530219089Spjd start = B_FALSE; 531219089Spjd } 532219089Spjd } 533219089Spjd} 534219089Spjd 535219089Spjd/* 536219089Spjd * Determine several different sizes 537219089Spjd * first the sa header size 538219089Spjd * the number of bytes to be stored 539219089Spjd * if spill would occur the index in the attribute array is returned 540219089Spjd * 541219089Spjd * the boolean will_spill will be set when spilling is necessary. It 542219089Spjd * is only set when the buftype is SA_BONUS 543219089Spjd */ 544219089Spjdstatic int 545219089Spjdsa_find_sizes(sa_os_t *sa, sa_bulk_attr_t *attr_desc, int attr_count, 546219089Spjd dmu_buf_t *db, sa_buf_type_t buftype, int *index, int *total, 547219089Spjd boolean_t *will_spill) 548219089Spjd{ 549219089Spjd int var_size = 0; 550219089Spjd int i; 551219089Spjd int full_space; 552219089Spjd int hdrsize; 553297101Smav int extra_hdrsize; 554219089Spjd 555219089Spjd if (buftype == SA_BONUS && sa->sa_force_spill) { 556219089Spjd *total = 0; 557219089Spjd *index = 0; 558219089Spjd *will_spill = B_TRUE; 559219089Spjd return (0); 560219089Spjd } 561219089Spjd 562219089Spjd *index = -1; 563219089Spjd *total = 0; 564297101Smav *will_spill = B_FALSE; 565219089Spjd 566297101Smav extra_hdrsize = 0; 567219089Spjd hdrsize = (SA_BONUSTYPE_FROM_DB(db) == DMU_OT_ZNODE) ? 0 : 568219089Spjd sizeof (sa_hdr_phys_t); 569219089Spjd 570219089Spjd full_space = (buftype == SA_BONUS) ? DN_MAX_BONUSLEN : db->db_size; 571246678Smm ASSERT(IS_P2ALIGNED(full_space, 8)); 572219089Spjd 573219089Spjd for (i = 0; i != attr_count; i++) { 574219089Spjd boolean_t is_var_sz; 575219089Spjd 576246678Smm *total = P2ROUNDUP(*total, 8); 577246678Smm *total += attr_desc[i].sa_length; 578297101Smav if (*will_spill) 579297101Smav continue; 580219089Spjd 581219089Spjd is_var_sz = (SA_REGISTERED_LEN(sa, attr_desc[i].sa_attr) == 0); 582219089Spjd if (is_var_sz) { 583219089Spjd var_size++; 584219089Spjd } 585219089Spjd 586219089Spjd if (is_var_sz && var_size > 1) { 587297101Smav /* 588297101Smav * Don't worry that the spill block might overflow. 589297101Smav * It will be resized if needed in sa_build_layouts(). 590297101Smav */ 591297101Smav if (buftype == SA_SPILL || 592297101Smav P2ROUNDUP(hdrsize + sizeof (uint16_t), 8) + 593219089Spjd *total < full_space) { 594246678Smm /* 595246678Smm * Account for header space used by array of 596246678Smm * optional sizes of variable-length attributes. 597297101Smav * Record the extra header size in case this 598297101Smav * increase needs to be reversed due to 599297101Smav * spill-over. 600246678Smm */ 601219089Spjd hdrsize += sizeof (uint16_t); 602297101Smav if (*index != -1) 603297101Smav extra_hdrsize += sizeof (uint16_t); 604219089Spjd } else { 605297101Smav ASSERT(buftype == SA_BONUS); 606297101Smav if (*index == -1) 607297101Smav *index = i; 608297101Smav *will_spill = B_TRUE; 609219089Spjd continue; 610219089Spjd } 611219089Spjd } 612219089Spjd 613219089Spjd /* 614219089Spjd * find index of where spill *could* occur. 615219089Spjd * Then continue to count of remainder attribute 616219089Spjd * space. The sum is used later for sizing bonus 617219089Spjd * and spill buffer. 618219089Spjd */ 619219089Spjd if (buftype == SA_BONUS && *index == -1 && 620226483Sdelphij (*total + P2ROUNDUP(hdrsize, 8)) > 621219089Spjd (full_space - sizeof (blkptr_t))) { 622219089Spjd *index = i; 623219089Spjd } 624219089Spjd 625226483Sdelphij if ((*total + P2ROUNDUP(hdrsize, 8)) > full_space && 626219089Spjd buftype == SA_BONUS) 627219089Spjd *will_spill = B_TRUE; 628219089Spjd } 629219089Spjd 630297101Smav if (*will_spill) 631297101Smav hdrsize -= extra_hdrsize; 632246678Smm 633219089Spjd hdrsize = P2ROUNDUP(hdrsize, 8); 634219089Spjd return (hdrsize); 635219089Spjd} 636219089Spjd 637219089Spjd#define BUF_SPACE_NEEDED(total, header) (total + header) 638219089Spjd 639219089Spjd/* 640219089Spjd * Find layout that corresponds to ordering of attributes 641219089Spjd * If not found a new layout number is created and added to 642219089Spjd * persistent layout tables. 643219089Spjd */ 644219089Spjdstatic int 645219089Spjdsa_build_layouts(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, int attr_count, 646219089Spjd dmu_tx_t *tx) 647219089Spjd{ 648219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 649219089Spjd uint64_t hash; 650219089Spjd sa_buf_type_t buftype; 651219089Spjd sa_hdr_phys_t *sahdr; 652219089Spjd void *data_start; 653219089Spjd int buf_space; 654219089Spjd sa_attr_type_t *attrs, *attrs_start; 655219089Spjd int i, lot_count; 656247187Smm int hdrsize; 657247187Smm int spillhdrsize = 0; 658219089Spjd int used; 659219089Spjd dmu_object_type_t bonustype; 660219089Spjd sa_lot_t *lot; 661219089Spjd int len_idx; 662219089Spjd int spill_used; 663219089Spjd boolean_t spilling; 664219089Spjd 665219089Spjd dmu_buf_will_dirty(hdl->sa_bonus, tx); 666219089Spjd bonustype = SA_BONUSTYPE_FROM_DB(hdl->sa_bonus); 667219089Spjd 668219089Spjd /* first determine bonus header size and sum of all attributes */ 669219089Spjd hdrsize = sa_find_sizes(sa, attr_desc, attr_count, hdl->sa_bonus, 670219089Spjd SA_BONUS, &i, &used, &spilling); 671219089Spjd 672276081Sdelphij if (used > SPA_OLD_MAXBLOCKSIZE) 673249195Smm return (SET_ERROR(EFBIG)); 674219089Spjd 675219089Spjd VERIFY(0 == dmu_set_bonus(hdl->sa_bonus, spilling ? 676219089Spjd MIN(DN_MAX_BONUSLEN - sizeof (blkptr_t), used + hdrsize) : 677219089Spjd used + hdrsize, tx)); 678219089Spjd 679219089Spjd ASSERT((bonustype == DMU_OT_ZNODE && spilling == 0) || 680219089Spjd bonustype == DMU_OT_SA); 681219089Spjd 682219089Spjd /* setup and size spill buffer when needed */ 683219089Spjd if (spilling) { 684219089Spjd boolean_t dummy; 685219089Spjd 686219089Spjd if (hdl->sa_spill == NULL) { 687219089Spjd VERIFY(dmu_spill_hold_by_bonus(hdl->sa_bonus, NULL, 688219089Spjd &hdl->sa_spill) == 0); 689219089Spjd } 690219089Spjd dmu_buf_will_dirty(hdl->sa_spill, tx); 691219089Spjd 692219089Spjd spillhdrsize = sa_find_sizes(sa, &attr_desc[i], 693219089Spjd attr_count - i, hdl->sa_spill, SA_SPILL, &i, 694219089Spjd &spill_used, &dummy); 695219089Spjd 696276081Sdelphij if (spill_used > SPA_OLD_MAXBLOCKSIZE) 697249195Smm return (SET_ERROR(EFBIG)); 698219089Spjd 699219089Spjd buf_space = hdl->sa_spill->db_size - spillhdrsize; 700219089Spjd if (BUF_SPACE_NEEDED(spill_used, spillhdrsize) > 701219089Spjd hdl->sa_spill->db_size) 702219089Spjd VERIFY(0 == sa_resize_spill(hdl, 703219089Spjd BUF_SPACE_NEEDED(spill_used, spillhdrsize), tx)); 704219089Spjd } 705219089Spjd 706219089Spjd /* setup starting pointers to lay down data */ 707219089Spjd data_start = (void *)((uintptr_t)hdl->sa_bonus->db_data + hdrsize); 708219089Spjd sahdr = (sa_hdr_phys_t *)hdl->sa_bonus->db_data; 709219089Spjd buftype = SA_BONUS; 710219089Spjd 711219089Spjd if (spilling) 712219089Spjd buf_space = (sa->sa_force_spill) ? 713219089Spjd 0 : SA_BLKPTR_SPACE - hdrsize; 714219089Spjd else 715219089Spjd buf_space = hdl->sa_bonus->db_size - hdrsize; 716219089Spjd 717219089Spjd attrs_start = attrs = kmem_alloc(sizeof (sa_attr_type_t) * attr_count, 718219089Spjd KM_SLEEP); 719219089Spjd lot_count = 0; 720219089Spjd 721219089Spjd for (i = 0, len_idx = 0, hash = -1ULL; i != attr_count; i++) { 722219089Spjd uint16_t length; 723219089Spjd 724246678Smm ASSERT(IS_P2ALIGNED(data_start, 8)); 725246678Smm ASSERT(IS_P2ALIGNED(buf_space, 8)); 726219089Spjd attrs[i] = attr_desc[i].sa_attr; 727219089Spjd length = SA_REGISTERED_LEN(sa, attrs[i]); 728219089Spjd if (length == 0) 729219089Spjd length = attr_desc[i].sa_length; 730240632Savg else 731240632Savg VERIFY(length == attr_desc[i].sa_length); 732219089Spjd 733219089Spjd if (buf_space < length) { /* switch to spill buffer */ 734246678Smm VERIFY(spilling); 735219089Spjd VERIFY(bonustype == DMU_OT_SA); 736219089Spjd if (buftype == SA_BONUS && !sa->sa_force_spill) { 737219089Spjd sa_find_layout(hdl->sa_os, hash, attrs_start, 738219089Spjd lot_count, tx, &lot); 739219089Spjd SA_SET_HDR(sahdr, lot->lot_num, hdrsize); 740219089Spjd } 741219089Spjd 742219089Spjd buftype = SA_SPILL; 743219089Spjd hash = -1ULL; 744219089Spjd len_idx = 0; 745219089Spjd 746219089Spjd sahdr = (sa_hdr_phys_t *)hdl->sa_spill->db_data; 747219089Spjd sahdr->sa_magic = SA_MAGIC; 748219089Spjd data_start = (void *)((uintptr_t)sahdr + 749219089Spjd spillhdrsize); 750219089Spjd attrs_start = &attrs[i]; 751219089Spjd buf_space = hdl->sa_spill->db_size - spillhdrsize; 752219089Spjd lot_count = 0; 753219089Spjd } 754219089Spjd hash ^= SA_ATTR_HASH(attrs[i]); 755219089Spjd attr_desc[i].sa_addr = data_start; 756219089Spjd attr_desc[i].sa_size = length; 757219089Spjd SA_COPY_DATA(attr_desc[i].sa_data_func, attr_desc[i].sa_data, 758219089Spjd data_start, length); 759219089Spjd if (sa->sa_attr_table[attrs[i]].sa_length == 0) { 760219089Spjd sahdr->sa_lengths[len_idx++] = length; 761219089Spjd } 762240632Savg VERIFY((uintptr_t)data_start % 8 == 0); 763219089Spjd data_start = (void *)P2ROUNDUP(((uintptr_t)data_start + 764219089Spjd length), 8); 765219089Spjd buf_space -= P2ROUNDUP(length, 8); 766219089Spjd lot_count++; 767219089Spjd } 768219089Spjd 769219089Spjd sa_find_layout(hdl->sa_os, hash, attrs_start, lot_count, tx, &lot); 770219089Spjd 771219089Spjd /* 772219089Spjd * Verify that old znodes always have layout number 0. 773219089Spjd * Must be DMU_OT_SA for arbitrary layouts 774219089Spjd */ 775219089Spjd VERIFY((bonustype == DMU_OT_ZNODE && lot->lot_num == 0) || 776219089Spjd (bonustype == DMU_OT_SA && lot->lot_num > 1)); 777219089Spjd 778219089Spjd if (bonustype == DMU_OT_SA) { 779219089Spjd SA_SET_HDR(sahdr, lot->lot_num, 780219089Spjd buftype == SA_BONUS ? hdrsize : spillhdrsize); 781219089Spjd } 782219089Spjd 783219089Spjd kmem_free(attrs, sizeof (sa_attr_type_t) * attr_count); 784219089Spjd if (hdl->sa_bonus_tab) { 785219089Spjd sa_idx_tab_rele(hdl->sa_os, hdl->sa_bonus_tab); 786219089Spjd hdl->sa_bonus_tab = NULL; 787219089Spjd } 788219089Spjd if (!sa->sa_force_spill) 789219089Spjd VERIFY(0 == sa_build_index(hdl, SA_BONUS)); 790219089Spjd if (hdl->sa_spill) { 791219089Spjd sa_idx_tab_rele(hdl->sa_os, hdl->sa_spill_tab); 792219089Spjd if (!spilling) { 793219089Spjd /* 794219089Spjd * remove spill block that is no longer needed. 795219089Spjd */ 796219089Spjd dmu_buf_rele(hdl->sa_spill, NULL); 797219089Spjd hdl->sa_spill = NULL; 798219089Spjd hdl->sa_spill_tab = NULL; 799219089Spjd VERIFY(0 == dmu_rm_spill(hdl->sa_os, 800219089Spjd sa_handle_object(hdl), tx)); 801219089Spjd } else { 802219089Spjd VERIFY(0 == sa_build_index(hdl, SA_SPILL)); 803219089Spjd } 804219089Spjd } 805219089Spjd 806219089Spjd return (0); 807219089Spjd} 808219089Spjd 809219089Spjdstatic void 810219089Spjdsa_free_attr_table(sa_os_t *sa) 811219089Spjd{ 812219089Spjd int i; 813219089Spjd 814219089Spjd if (sa->sa_attr_table == NULL) 815219089Spjd return; 816219089Spjd 817219089Spjd for (i = 0; i != sa->sa_num_attrs; i++) { 818219089Spjd if (sa->sa_attr_table[i].sa_name) 819219089Spjd kmem_free(sa->sa_attr_table[i].sa_name, 820219089Spjd strlen(sa->sa_attr_table[i].sa_name) + 1); 821219089Spjd } 822219089Spjd 823219089Spjd kmem_free(sa->sa_attr_table, 824219089Spjd sizeof (sa_attr_table_t) * sa->sa_num_attrs); 825219089Spjd 826219089Spjd sa->sa_attr_table = NULL; 827219089Spjd} 828219089Spjd 829219089Spjdstatic int 830219089Spjdsa_attr_table_setup(objset_t *os, sa_attr_reg_t *reg_attrs, int count) 831219089Spjd{ 832219089Spjd sa_os_t *sa = os->os_sa; 833219089Spjd uint64_t sa_attr_count = 0; 834247187Smm uint64_t sa_reg_count = 0; 835219089Spjd int error = 0; 836219089Spjd uint64_t attr_value; 837219089Spjd sa_attr_table_t *tb; 838219089Spjd zap_cursor_t zc; 839219089Spjd zap_attribute_t za; 840219089Spjd int registered_count = 0; 841219089Spjd int i; 842219089Spjd dmu_objset_type_t ostype = dmu_objset_type(os); 843219089Spjd 844219089Spjd sa->sa_user_table = 845219089Spjd kmem_zalloc(count * sizeof (sa_attr_type_t), KM_SLEEP); 846219089Spjd sa->sa_user_table_sz = count * sizeof (sa_attr_type_t); 847219089Spjd 848219089Spjd if (sa->sa_reg_attr_obj != 0) { 849219089Spjd error = zap_count(os, sa->sa_reg_attr_obj, 850219089Spjd &sa_attr_count); 851219089Spjd 852219089Spjd /* 853219089Spjd * Make sure we retrieved a count and that it isn't zero 854219089Spjd */ 855219089Spjd if (error || (error == 0 && sa_attr_count == 0)) { 856219089Spjd if (error == 0) 857249195Smm error = SET_ERROR(EINVAL); 858219089Spjd goto bail; 859219089Spjd } 860219089Spjd sa_reg_count = sa_attr_count; 861219089Spjd } 862219089Spjd 863219089Spjd if (ostype == DMU_OST_ZFS && sa_attr_count == 0) 864219089Spjd sa_attr_count += sa_legacy_attr_count; 865219089Spjd 866219089Spjd /* Allocate attribute numbers for attributes that aren't registered */ 867219089Spjd for (i = 0; i != count; i++) { 868219089Spjd boolean_t found = B_FALSE; 869219089Spjd int j; 870219089Spjd 871219089Spjd if (ostype == DMU_OST_ZFS) { 872219089Spjd for (j = 0; j != sa_legacy_attr_count; j++) { 873219089Spjd if (strcmp(reg_attrs[i].sa_name, 874219089Spjd sa_legacy_attrs[j].sa_name) == 0) { 875219089Spjd sa->sa_user_table[i] = 876219089Spjd sa_legacy_attrs[j].sa_attr; 877219089Spjd found = B_TRUE; 878219089Spjd } 879219089Spjd } 880219089Spjd } 881219089Spjd if (found) 882219089Spjd continue; 883219089Spjd 884219089Spjd if (sa->sa_reg_attr_obj) 885219089Spjd error = zap_lookup(os, sa->sa_reg_attr_obj, 886219089Spjd reg_attrs[i].sa_name, 8, 1, &attr_value); 887219089Spjd else 888249195Smm error = SET_ERROR(ENOENT); 889219089Spjd switch (error) { 890219089Spjd case ENOENT: 891219089Spjd sa->sa_user_table[i] = (sa_attr_type_t)sa_attr_count; 892219089Spjd sa_attr_count++; 893219089Spjd break; 894219089Spjd case 0: 895219089Spjd sa->sa_user_table[i] = ATTR_NUM(attr_value); 896219089Spjd break; 897219089Spjd default: 898219089Spjd goto bail; 899219089Spjd } 900219089Spjd } 901219089Spjd 902219089Spjd sa->sa_num_attrs = sa_attr_count; 903219089Spjd tb = sa->sa_attr_table = 904219089Spjd kmem_zalloc(sizeof (sa_attr_table_t) * sa_attr_count, KM_SLEEP); 905219089Spjd 906219089Spjd /* 907219089Spjd * Attribute table is constructed from requested attribute list, 908219089Spjd * previously foreign registered attributes, and also the legacy 909219089Spjd * ZPL set of attributes. 910219089Spjd */ 911219089Spjd 912219089Spjd if (sa->sa_reg_attr_obj) { 913219089Spjd for (zap_cursor_init(&zc, os, sa->sa_reg_attr_obj); 914219089Spjd (error = zap_cursor_retrieve(&zc, &za)) == 0; 915219089Spjd zap_cursor_advance(&zc)) { 916219089Spjd uint64_t value; 917219089Spjd value = za.za_first_integer; 918219089Spjd 919219089Spjd registered_count++; 920219089Spjd tb[ATTR_NUM(value)].sa_attr = ATTR_NUM(value); 921219089Spjd tb[ATTR_NUM(value)].sa_length = ATTR_LENGTH(value); 922219089Spjd tb[ATTR_NUM(value)].sa_byteswap = ATTR_BSWAP(value); 923219089Spjd tb[ATTR_NUM(value)].sa_registered = B_TRUE; 924219089Spjd 925219089Spjd if (tb[ATTR_NUM(value)].sa_name) { 926219089Spjd continue; 927219089Spjd } 928219089Spjd tb[ATTR_NUM(value)].sa_name = 929219089Spjd kmem_zalloc(strlen(za.za_name) +1, KM_SLEEP); 930219089Spjd (void) strlcpy(tb[ATTR_NUM(value)].sa_name, za.za_name, 931219089Spjd strlen(za.za_name) +1); 932219089Spjd } 933219089Spjd zap_cursor_fini(&zc); 934219089Spjd /* 935219089Spjd * Make sure we processed the correct number of registered 936219089Spjd * attributes 937219089Spjd */ 938219089Spjd if (registered_count != sa_reg_count) { 939219089Spjd ASSERT(error != 0); 940219089Spjd goto bail; 941219089Spjd } 942219089Spjd 943219089Spjd } 944219089Spjd 945219089Spjd if (ostype == DMU_OST_ZFS) { 946219089Spjd for (i = 0; i != sa_legacy_attr_count; i++) { 947219089Spjd if (tb[i].sa_name) 948219089Spjd continue; 949219089Spjd tb[i].sa_attr = sa_legacy_attrs[i].sa_attr; 950219089Spjd tb[i].sa_length = sa_legacy_attrs[i].sa_length; 951219089Spjd tb[i].sa_byteswap = sa_legacy_attrs[i].sa_byteswap; 952219089Spjd tb[i].sa_registered = B_FALSE; 953219089Spjd tb[i].sa_name = 954219089Spjd kmem_zalloc(strlen(sa_legacy_attrs[i].sa_name) +1, 955219089Spjd KM_SLEEP); 956219089Spjd (void) strlcpy(tb[i].sa_name, 957219089Spjd sa_legacy_attrs[i].sa_name, 958219089Spjd strlen(sa_legacy_attrs[i].sa_name) + 1); 959219089Spjd } 960219089Spjd } 961219089Spjd 962219089Spjd for (i = 0; i != count; i++) { 963219089Spjd sa_attr_type_t attr_id; 964219089Spjd 965219089Spjd attr_id = sa->sa_user_table[i]; 966219089Spjd if (tb[attr_id].sa_name) 967219089Spjd continue; 968219089Spjd 969219089Spjd tb[attr_id].sa_length = reg_attrs[i].sa_length; 970219089Spjd tb[attr_id].sa_byteswap = reg_attrs[i].sa_byteswap; 971219089Spjd tb[attr_id].sa_attr = attr_id; 972219089Spjd tb[attr_id].sa_name = 973219089Spjd kmem_zalloc(strlen(reg_attrs[i].sa_name) + 1, KM_SLEEP); 974219089Spjd (void) strlcpy(tb[attr_id].sa_name, reg_attrs[i].sa_name, 975219089Spjd strlen(reg_attrs[i].sa_name) + 1); 976219089Spjd } 977219089Spjd 978219089Spjd sa->sa_need_attr_registration = 979219089Spjd (sa_attr_count != registered_count); 980219089Spjd 981219089Spjd return (0); 982219089Spjdbail: 983219089Spjd kmem_free(sa->sa_user_table, count * sizeof (sa_attr_type_t)); 984219089Spjd sa->sa_user_table = NULL; 985219089Spjd sa_free_attr_table(sa); 986219089Spjd return ((error != 0) ? error : EINVAL); 987219089Spjd} 988219089Spjd 989219089Spjdint 990219089Spjdsa_setup(objset_t *os, uint64_t sa_obj, sa_attr_reg_t *reg_attrs, int count, 991219089Spjd sa_attr_type_t **user_table) 992219089Spjd{ 993219089Spjd zap_cursor_t zc; 994219089Spjd zap_attribute_t za; 995219089Spjd sa_os_t *sa; 996219089Spjd dmu_objset_type_t ostype = dmu_objset_type(os); 997219089Spjd sa_attr_type_t *tb; 998219089Spjd int error; 999219089Spjd 1000248571Smm mutex_enter(&os->os_user_ptr_lock); 1001219089Spjd if (os->os_sa) { 1002219089Spjd mutex_enter(&os->os_sa->sa_lock); 1003248571Smm mutex_exit(&os->os_user_ptr_lock); 1004219089Spjd tb = os->os_sa->sa_user_table; 1005219089Spjd mutex_exit(&os->os_sa->sa_lock); 1006219089Spjd *user_table = tb; 1007219089Spjd return (0); 1008219089Spjd } 1009219089Spjd 1010219089Spjd sa = kmem_zalloc(sizeof (sa_os_t), KM_SLEEP); 1011219089Spjd mutex_init(&sa->sa_lock, NULL, MUTEX_DEFAULT, NULL); 1012219089Spjd sa->sa_master_obj = sa_obj; 1013219089Spjd 1014219089Spjd os->os_sa = sa; 1015219089Spjd mutex_enter(&sa->sa_lock); 1016248571Smm mutex_exit(&os->os_user_ptr_lock); 1017219089Spjd avl_create(&sa->sa_layout_num_tree, layout_num_compare, 1018219089Spjd sizeof (sa_lot_t), offsetof(sa_lot_t, lot_num_node)); 1019219089Spjd avl_create(&sa->sa_layout_hash_tree, layout_hash_compare, 1020219089Spjd sizeof (sa_lot_t), offsetof(sa_lot_t, lot_hash_node)); 1021219089Spjd 1022219089Spjd if (sa_obj) { 1023219089Spjd error = zap_lookup(os, sa_obj, SA_LAYOUTS, 1024219089Spjd 8, 1, &sa->sa_layout_attr_obj); 1025219089Spjd if (error != 0 && error != ENOENT) 1026219089Spjd goto fail; 1027219089Spjd error = zap_lookup(os, sa_obj, SA_REGISTRY, 1028219089Spjd 8, 1, &sa->sa_reg_attr_obj); 1029219089Spjd if (error != 0 && error != ENOENT) 1030219089Spjd goto fail; 1031219089Spjd } 1032219089Spjd 1033219089Spjd if ((error = sa_attr_table_setup(os, reg_attrs, count)) != 0) 1034219089Spjd goto fail; 1035219089Spjd 1036219089Spjd if (sa->sa_layout_attr_obj != 0) { 1037219089Spjd uint64_t layout_count; 1038219089Spjd 1039219089Spjd error = zap_count(os, sa->sa_layout_attr_obj, 1040219089Spjd &layout_count); 1041219089Spjd 1042219089Spjd /* 1043219089Spjd * Layout number count should be > 0 1044219089Spjd */ 1045219089Spjd if (error || (error == 0 && layout_count == 0)) { 1046219089Spjd if (error == 0) 1047249195Smm error = SET_ERROR(EINVAL); 1048219089Spjd goto fail; 1049219089Spjd } 1050219089Spjd 1051219089Spjd for (zap_cursor_init(&zc, os, sa->sa_layout_attr_obj); 1052219089Spjd (error = zap_cursor_retrieve(&zc, &za)) == 0; 1053219089Spjd zap_cursor_advance(&zc)) { 1054219089Spjd sa_attr_type_t *lot_attrs; 1055219089Spjd uint64_t lot_num; 1056219089Spjd 1057219089Spjd lot_attrs = kmem_zalloc(sizeof (sa_attr_type_t) * 1058219089Spjd za.za_num_integers, KM_SLEEP); 1059219089Spjd 1060219089Spjd if ((error = (zap_lookup(os, sa->sa_layout_attr_obj, 1061219089Spjd za.za_name, 2, za.za_num_integers, 1062219089Spjd lot_attrs))) != 0) { 1063219089Spjd kmem_free(lot_attrs, sizeof (sa_attr_type_t) * 1064219089Spjd za.za_num_integers); 1065219089Spjd break; 1066219089Spjd } 1067219089Spjd VERIFY(ddi_strtoull(za.za_name, NULL, 10, 1068219089Spjd (unsigned long long *)&lot_num) == 0); 1069219089Spjd 1070219089Spjd (void) sa_add_layout_entry(os, lot_attrs, 1071219089Spjd za.za_num_integers, lot_num, 1072219089Spjd sa_layout_info_hash(lot_attrs, 1073219089Spjd za.za_num_integers), B_FALSE, NULL); 1074219089Spjd kmem_free(lot_attrs, sizeof (sa_attr_type_t) * 1075219089Spjd za.za_num_integers); 1076219089Spjd } 1077219089Spjd zap_cursor_fini(&zc); 1078219089Spjd 1079219089Spjd /* 1080219089Spjd * Make sure layout count matches number of entries added 1081219089Spjd * to AVL tree 1082219089Spjd */ 1083219089Spjd if (avl_numnodes(&sa->sa_layout_num_tree) != layout_count) { 1084219089Spjd ASSERT(error != 0); 1085219089Spjd goto fail; 1086219089Spjd } 1087219089Spjd } 1088219089Spjd 1089219089Spjd /* Add special layout number for old ZNODES */ 1090219089Spjd if (ostype == DMU_OST_ZFS) { 1091219089Spjd (void) sa_add_layout_entry(os, sa_legacy_zpl_layout, 1092219089Spjd sa_legacy_attr_count, 0, 1093219089Spjd sa_layout_info_hash(sa_legacy_zpl_layout, 1094219089Spjd sa_legacy_attr_count), B_FALSE, NULL); 1095219089Spjd 1096219089Spjd (void) sa_add_layout_entry(os, sa_dummy_zpl_layout, 0, 1, 1097219089Spjd 0, B_FALSE, NULL); 1098219089Spjd } 1099219089Spjd *user_table = os->os_sa->sa_user_table; 1100219089Spjd mutex_exit(&sa->sa_lock); 1101219089Spjd return (0); 1102219089Spjdfail: 1103219089Spjd os->os_sa = NULL; 1104219089Spjd sa_free_attr_table(sa); 1105219089Spjd if (sa->sa_user_table) 1106219089Spjd kmem_free(sa->sa_user_table, sa->sa_user_table_sz); 1107219089Spjd mutex_exit(&sa->sa_lock); 1108269218Sdelphij avl_destroy(&sa->sa_layout_hash_tree); 1109269218Sdelphij avl_destroy(&sa->sa_layout_num_tree); 1110269218Sdelphij mutex_destroy(&sa->sa_lock); 1111219089Spjd kmem_free(sa, sizeof (sa_os_t)); 1112219089Spjd return ((error == ECKSUM) ? EIO : error); 1113219089Spjd} 1114219089Spjd 1115219089Spjdvoid 1116219089Spjdsa_tear_down(objset_t *os) 1117219089Spjd{ 1118219089Spjd sa_os_t *sa = os->os_sa; 1119219089Spjd sa_lot_t *layout; 1120219089Spjd void *cookie; 1121219089Spjd 1122219089Spjd kmem_free(sa->sa_user_table, sa->sa_user_table_sz); 1123219089Spjd 1124219089Spjd /* Free up attr table */ 1125219089Spjd 1126219089Spjd sa_free_attr_table(sa); 1127219089Spjd 1128219089Spjd cookie = NULL; 1129219089Spjd while (layout = avl_destroy_nodes(&sa->sa_layout_hash_tree, &cookie)) { 1130219089Spjd sa_idx_tab_t *tab; 1131219089Spjd while (tab = list_head(&layout->lot_idx_tab)) { 1132219089Spjd ASSERT(refcount_count(&tab->sa_refcount)); 1133219089Spjd sa_idx_tab_rele(os, tab); 1134219089Spjd } 1135219089Spjd } 1136219089Spjd 1137219089Spjd cookie = NULL; 1138219089Spjd while (layout = avl_destroy_nodes(&sa->sa_layout_num_tree, &cookie)) { 1139219089Spjd kmem_free(layout->lot_attrs, 1140219089Spjd sizeof (sa_attr_type_t) * layout->lot_attr_count); 1141219089Spjd kmem_free(layout, sizeof (sa_lot_t)); 1142219089Spjd } 1143219089Spjd 1144219089Spjd avl_destroy(&sa->sa_layout_hash_tree); 1145219089Spjd avl_destroy(&sa->sa_layout_num_tree); 1146269218Sdelphij mutex_destroy(&sa->sa_lock); 1147219089Spjd 1148219089Spjd kmem_free(sa, sizeof (sa_os_t)); 1149219089Spjd os->os_sa = NULL; 1150219089Spjd} 1151219089Spjd 1152219089Spjdvoid 1153219089Spjdsa_build_idx_tab(void *hdr, void *attr_addr, sa_attr_type_t attr, 1154219089Spjd uint16_t length, int length_idx, boolean_t var_length, void *userp) 1155219089Spjd{ 1156219089Spjd sa_idx_tab_t *idx_tab = userp; 1157219089Spjd 1158219089Spjd if (var_length) { 1159219089Spjd ASSERT(idx_tab->sa_variable_lengths); 1160219089Spjd idx_tab->sa_variable_lengths[length_idx] = length; 1161219089Spjd } 1162219089Spjd TOC_ATTR_ENCODE(idx_tab->sa_idx_tab[attr], length_idx, 1163219089Spjd (uint32_t)((uintptr_t)attr_addr - (uintptr_t)hdr)); 1164219089Spjd} 1165219089Spjd 1166219089Spjdstatic void 1167219089Spjdsa_attr_iter(objset_t *os, sa_hdr_phys_t *hdr, dmu_object_type_t type, 1168219089Spjd sa_iterfunc_t func, sa_lot_t *tab, void *userp) 1169219089Spjd{ 1170219089Spjd void *data_start; 1171219089Spjd sa_lot_t *tb = tab; 1172219089Spjd sa_lot_t search; 1173219089Spjd avl_index_t loc; 1174219089Spjd sa_os_t *sa = os->os_sa; 1175219089Spjd int i; 1176219089Spjd uint16_t *length_start = NULL; 1177219089Spjd uint8_t length_idx = 0; 1178219089Spjd 1179219089Spjd if (tab == NULL) { 1180219089Spjd search.lot_num = SA_LAYOUT_NUM(hdr, type); 1181219089Spjd tb = avl_find(&sa->sa_layout_num_tree, &search, &loc); 1182219089Spjd ASSERT(tb); 1183219089Spjd } 1184219089Spjd 1185219089Spjd if (IS_SA_BONUSTYPE(type)) { 1186219089Spjd data_start = (void *)P2ROUNDUP(((uintptr_t)hdr + 1187219089Spjd offsetof(sa_hdr_phys_t, sa_lengths) + 1188219089Spjd (sizeof (uint16_t) * tb->lot_var_sizes)), 8); 1189219089Spjd length_start = hdr->sa_lengths; 1190219089Spjd } else { 1191219089Spjd data_start = hdr; 1192219089Spjd } 1193219089Spjd 1194219089Spjd for (i = 0; i != tb->lot_attr_count; i++) { 1195219089Spjd int attr_length, reg_length; 1196219089Spjd uint8_t idx_len; 1197219089Spjd 1198219089Spjd reg_length = sa->sa_attr_table[tb->lot_attrs[i]].sa_length; 1199219089Spjd if (reg_length) { 1200219089Spjd attr_length = reg_length; 1201219089Spjd idx_len = 0; 1202219089Spjd } else { 1203219089Spjd attr_length = length_start[length_idx]; 1204219089Spjd idx_len = length_idx++; 1205219089Spjd } 1206219089Spjd 1207219089Spjd func(hdr, data_start, tb->lot_attrs[i], attr_length, 1208219089Spjd idx_len, reg_length == 0 ? B_TRUE : B_FALSE, userp); 1209219089Spjd 1210219089Spjd data_start = (void *)P2ROUNDUP(((uintptr_t)data_start + 1211219089Spjd attr_length), 8); 1212219089Spjd } 1213219089Spjd} 1214219089Spjd 1215219089Spjd/*ARGSUSED*/ 1216219089Spjdvoid 1217219089Spjdsa_byteswap_cb(void *hdr, void *attr_addr, sa_attr_type_t attr, 1218219089Spjd uint16_t length, int length_idx, boolean_t variable_length, void *userp) 1219219089Spjd{ 1220219089Spjd sa_handle_t *hdl = userp; 1221219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 1222219089Spjd 1223219089Spjd sa_bswap_table[sa->sa_attr_table[attr].sa_byteswap](attr_addr, length); 1224219089Spjd} 1225219089Spjd 1226219089Spjdvoid 1227219089Spjdsa_byteswap(sa_handle_t *hdl, sa_buf_type_t buftype) 1228219089Spjd{ 1229219089Spjd sa_hdr_phys_t *sa_hdr_phys = SA_GET_HDR(hdl, buftype); 1230219089Spjd dmu_buf_impl_t *db; 1231219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 1232219089Spjd int num_lengths = 1; 1233219089Spjd int i; 1234219089Spjd 1235219089Spjd ASSERT(MUTEX_HELD(&sa->sa_lock)); 1236219089Spjd if (sa_hdr_phys->sa_magic == SA_MAGIC) 1237219089Spjd return; 1238219089Spjd 1239219089Spjd db = SA_GET_DB(hdl, buftype); 1240219089Spjd 1241219089Spjd if (buftype == SA_SPILL) { 1242219089Spjd arc_release(db->db_buf, NULL); 1243219089Spjd arc_buf_thaw(db->db_buf); 1244219089Spjd } 1245219089Spjd 1246219089Spjd sa_hdr_phys->sa_magic = BSWAP_32(sa_hdr_phys->sa_magic); 1247219089Spjd sa_hdr_phys->sa_layout_info = BSWAP_16(sa_hdr_phys->sa_layout_info); 1248219089Spjd 1249219089Spjd /* 1250219089Spjd * Determine number of variable lenghts in header 1251219089Spjd * The standard 8 byte header has one for free and a 1252219089Spjd * 16 byte header would have 4 + 1; 1253219089Spjd */ 1254219089Spjd if (SA_HDR_SIZE(sa_hdr_phys) > 8) 1255219089Spjd num_lengths += (SA_HDR_SIZE(sa_hdr_phys) - 8) >> 1; 1256219089Spjd for (i = 0; i != num_lengths; i++) 1257219089Spjd sa_hdr_phys->sa_lengths[i] = 1258219089Spjd BSWAP_16(sa_hdr_phys->sa_lengths[i]); 1259219089Spjd 1260219089Spjd sa_attr_iter(hdl->sa_os, sa_hdr_phys, DMU_OT_SA, 1261219089Spjd sa_byteswap_cb, NULL, hdl); 1262219089Spjd 1263219089Spjd if (buftype == SA_SPILL) 1264219089Spjd arc_buf_freeze(((dmu_buf_impl_t *)hdl->sa_spill)->db_buf); 1265219089Spjd} 1266219089Spjd 1267219089Spjdstatic int 1268219089Spjdsa_build_index(sa_handle_t *hdl, sa_buf_type_t buftype) 1269219089Spjd{ 1270219089Spjd sa_hdr_phys_t *sa_hdr_phys; 1271219089Spjd dmu_buf_impl_t *db = SA_GET_DB(hdl, buftype); 1272219089Spjd dmu_object_type_t bonustype = SA_BONUSTYPE_FROM_DB(db); 1273219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 1274219089Spjd sa_idx_tab_t *idx_tab; 1275219089Spjd 1276219089Spjd sa_hdr_phys = SA_GET_HDR(hdl, buftype); 1277219089Spjd 1278219089Spjd mutex_enter(&sa->sa_lock); 1279219089Spjd 1280219089Spjd /* Do we need to byteswap? */ 1281219089Spjd 1282219089Spjd /* only check if not old znode */ 1283219089Spjd if (IS_SA_BONUSTYPE(bonustype) && sa_hdr_phys->sa_magic != SA_MAGIC && 1284219089Spjd sa_hdr_phys->sa_magic != 0) { 1285219089Spjd VERIFY(BSWAP_32(sa_hdr_phys->sa_magic) == SA_MAGIC); 1286219089Spjd sa_byteswap(hdl, buftype); 1287219089Spjd } 1288219089Spjd 1289219089Spjd idx_tab = sa_find_idx_tab(hdl->sa_os, bonustype, sa_hdr_phys); 1290219089Spjd 1291219089Spjd if (buftype == SA_BONUS) 1292219089Spjd hdl->sa_bonus_tab = idx_tab; 1293219089Spjd else 1294219089Spjd hdl->sa_spill_tab = idx_tab; 1295219089Spjd 1296219089Spjd mutex_exit(&sa->sa_lock); 1297219089Spjd return (0); 1298219089Spjd} 1299219089Spjd 1300219089Spjd/*ARGSUSED*/ 1301288549Smavstatic void 1302288549Smavsa_evict(void *dbu) 1303219089Spjd{ 1304288549Smav panic("evicting sa dbuf\n"); 1305219089Spjd} 1306219089Spjd 1307219089Spjdstatic void 1308219089Spjdsa_idx_tab_rele(objset_t *os, void *arg) 1309219089Spjd{ 1310219089Spjd sa_os_t *sa = os->os_sa; 1311219089Spjd sa_idx_tab_t *idx_tab = arg; 1312219089Spjd 1313219089Spjd if (idx_tab == NULL) 1314219089Spjd return; 1315219089Spjd 1316219089Spjd mutex_enter(&sa->sa_lock); 1317219089Spjd if (refcount_remove(&idx_tab->sa_refcount, NULL) == 0) { 1318219089Spjd list_remove(&idx_tab->sa_layout->lot_idx_tab, idx_tab); 1319219089Spjd if (idx_tab->sa_variable_lengths) 1320219089Spjd kmem_free(idx_tab->sa_variable_lengths, 1321219089Spjd sizeof (uint16_t) * 1322219089Spjd idx_tab->sa_layout->lot_var_sizes); 1323219089Spjd refcount_destroy(&idx_tab->sa_refcount); 1324219089Spjd kmem_free(idx_tab->sa_idx_tab, 1325219089Spjd sizeof (uint32_t) * sa->sa_num_attrs); 1326219089Spjd kmem_free(idx_tab, sizeof (sa_idx_tab_t)); 1327219089Spjd } 1328219089Spjd mutex_exit(&sa->sa_lock); 1329219089Spjd} 1330219089Spjd 1331219089Spjdstatic void 1332219089Spjdsa_idx_tab_hold(objset_t *os, sa_idx_tab_t *idx_tab) 1333219089Spjd{ 1334219089Spjd sa_os_t *sa = os->os_sa; 1335219089Spjd 1336219089Spjd ASSERT(MUTEX_HELD(&sa->sa_lock)); 1337219089Spjd (void) refcount_add(&idx_tab->sa_refcount, NULL); 1338219089Spjd} 1339219089Spjd 1340219089Spjdvoid 1341219089Spjdsa_handle_destroy(sa_handle_t *hdl) 1342219089Spjd{ 1343288549Smav dmu_buf_t *db = hdl->sa_bonus; 1344288549Smav 1345219089Spjd mutex_enter(&hdl->sa_lock); 1346288549Smav (void) dmu_buf_remove_user(db, &hdl->sa_dbu); 1347219089Spjd 1348288537Smav if (hdl->sa_bonus_tab) 1349219089Spjd sa_idx_tab_rele(hdl->sa_os, hdl->sa_bonus_tab); 1350288537Smav 1351288537Smav if (hdl->sa_spill_tab) 1352219089Spjd sa_idx_tab_rele(hdl->sa_os, hdl->sa_spill_tab); 1353219089Spjd 1354219089Spjd dmu_buf_rele(hdl->sa_bonus, NULL); 1355219089Spjd 1356219089Spjd if (hdl->sa_spill) 1357219089Spjd dmu_buf_rele((dmu_buf_t *)hdl->sa_spill, NULL); 1358219089Spjd mutex_exit(&hdl->sa_lock); 1359219089Spjd 1360219089Spjd kmem_cache_free(sa_cache, hdl); 1361219089Spjd} 1362219089Spjd 1363219089Spjdint 1364219089Spjdsa_handle_get_from_db(objset_t *os, dmu_buf_t *db, void *userp, 1365219089Spjd sa_handle_type_t hdl_type, sa_handle_t **handlepp) 1366219089Spjd{ 1367219089Spjd int error = 0; 1368219089Spjd dmu_object_info_t doi; 1369288549Smav sa_handle_t *handle = NULL; 1370219089Spjd 1371219089Spjd#ifdef ZFS_DEBUG 1372219089Spjd dmu_object_info_from_db(db, &doi); 1373219089Spjd ASSERT(doi.doi_bonus_type == DMU_OT_SA || 1374219089Spjd doi.doi_bonus_type == DMU_OT_ZNODE); 1375219089Spjd#endif 1376219089Spjd /* find handle, if it exists */ 1377219089Spjd /* if one doesn't exist then create a new one, and initialize it */ 1378219089Spjd 1379288549Smav if (hdl_type == SA_HDL_SHARED) 1380288549Smav handle = dmu_buf_get_user(db); 1381288549Smav 1382219089Spjd if (handle == NULL) { 1383288549Smav sa_handle_t *winner = NULL; 1384288549Smav 1385219089Spjd handle = kmem_cache_alloc(sa_cache, KM_SLEEP); 1386288589Smav handle->sa_dbu.dbu_evict_func = NULL; 1387219089Spjd handle->sa_userp = userp; 1388219089Spjd handle->sa_bonus = db; 1389219089Spjd handle->sa_os = os; 1390219089Spjd handle->sa_spill = NULL; 1391288537Smav handle->sa_bonus_tab = NULL; 1392288537Smav handle->sa_spill_tab = NULL; 1393219089Spjd 1394219089Spjd error = sa_build_index(handle, SA_BONUS); 1395219089Spjd 1396288549Smav if (hdl_type == SA_HDL_SHARED) { 1397288549Smav dmu_buf_init_user(&handle->sa_dbu, sa_evict, NULL); 1398288549Smav winner = dmu_buf_set_user_ie(db, &handle->sa_dbu); 1399288549Smav } 1400288549Smav 1401288549Smav if (winner != NULL) { 1402219089Spjd kmem_cache_free(sa_cache, handle); 1403288549Smav handle = winner; 1404219089Spjd } 1405219089Spjd } 1406219089Spjd *handlepp = handle; 1407219089Spjd 1408219089Spjd return (error); 1409219089Spjd} 1410219089Spjd 1411219089Spjdint 1412219089Spjdsa_handle_get(objset_t *objset, uint64_t objid, void *userp, 1413219089Spjd sa_handle_type_t hdl_type, sa_handle_t **handlepp) 1414219089Spjd{ 1415219089Spjd dmu_buf_t *db; 1416219089Spjd int error; 1417219089Spjd 1418219089Spjd if (error = dmu_bonus_hold(objset, objid, NULL, &db)) 1419219089Spjd return (error); 1420219089Spjd 1421219089Spjd return (sa_handle_get_from_db(objset, db, userp, hdl_type, 1422219089Spjd handlepp)); 1423219089Spjd} 1424219089Spjd 1425219089Spjdint 1426219089Spjdsa_buf_hold(objset_t *objset, uint64_t obj_num, void *tag, dmu_buf_t **db) 1427219089Spjd{ 1428219089Spjd return (dmu_bonus_hold(objset, obj_num, tag, db)); 1429219089Spjd} 1430219089Spjd 1431219089Spjdvoid 1432219089Spjdsa_buf_rele(dmu_buf_t *db, void *tag) 1433219089Spjd{ 1434219089Spjd dmu_buf_rele(db, tag); 1435219089Spjd} 1436219089Spjd 1437219089Spjdint 1438219089Spjdsa_lookup_impl(sa_handle_t *hdl, sa_bulk_attr_t *bulk, int count) 1439219089Spjd{ 1440219089Spjd ASSERT(hdl); 1441219089Spjd ASSERT(MUTEX_HELD(&hdl->sa_lock)); 1442219089Spjd return (sa_attr_op(hdl, bulk, count, SA_LOOKUP, NULL)); 1443219089Spjd} 1444219089Spjd 1445219089Spjdint 1446219089Spjdsa_lookup(sa_handle_t *hdl, sa_attr_type_t attr, void *buf, uint32_t buflen) 1447219089Spjd{ 1448219089Spjd int error; 1449219089Spjd sa_bulk_attr_t bulk; 1450219089Spjd 1451219089Spjd bulk.sa_attr = attr; 1452219089Spjd bulk.sa_data = buf; 1453219089Spjd bulk.sa_length = buflen; 1454219089Spjd bulk.sa_data_func = NULL; 1455219089Spjd 1456219089Spjd ASSERT(hdl); 1457219089Spjd mutex_enter(&hdl->sa_lock); 1458219089Spjd error = sa_lookup_impl(hdl, &bulk, 1); 1459219089Spjd mutex_exit(&hdl->sa_lock); 1460219089Spjd return (error); 1461219089Spjd} 1462219089Spjd 1463219089Spjd#ifdef _KERNEL 1464219089Spjdint 1465219089Spjdsa_lookup_uio(sa_handle_t *hdl, sa_attr_type_t attr, uio_t *uio) 1466219089Spjd{ 1467219089Spjd int error; 1468219089Spjd sa_bulk_attr_t bulk; 1469219089Spjd 1470219089Spjd bulk.sa_data = NULL; 1471219089Spjd bulk.sa_attr = attr; 1472219089Spjd bulk.sa_data_func = NULL; 1473219089Spjd 1474219089Spjd ASSERT(hdl); 1475219089Spjd 1476219089Spjd mutex_enter(&hdl->sa_lock); 1477219089Spjd if ((error = sa_attr_op(hdl, &bulk, 1, SA_LOOKUP, NULL)) == 0) { 1478219089Spjd error = uiomove((void *)bulk.sa_addr, MIN(bulk.sa_size, 1479219089Spjd uio->uio_resid), UIO_READ, uio); 1480219089Spjd } 1481219089Spjd mutex_exit(&hdl->sa_lock); 1482219089Spjd return (error); 1483219089Spjd 1484219089Spjd} 1485219089Spjd#endif 1486219089Spjd 1487219089Spjdvoid * 1488219089Spjdsa_find_idx_tab(objset_t *os, dmu_object_type_t bonustype, void *data) 1489219089Spjd{ 1490219089Spjd sa_idx_tab_t *idx_tab; 1491219089Spjd sa_hdr_phys_t *hdr = (sa_hdr_phys_t *)data; 1492219089Spjd sa_os_t *sa = os->os_sa; 1493219089Spjd sa_lot_t *tb, search; 1494219089Spjd avl_index_t loc; 1495219089Spjd 1496219089Spjd /* 1497219089Spjd * Deterimine layout number. If SA node and header == 0 then 1498219089Spjd * force the index table to the dummy "1" empty layout. 1499219089Spjd * 1500219089Spjd * The layout number would only be zero for a newly created file 1501219089Spjd * that has not added any attributes yet, or with crypto enabled which 1502219089Spjd * doesn't write any attributes to the bonus buffer. 1503219089Spjd */ 1504219089Spjd 1505219089Spjd search.lot_num = SA_LAYOUT_NUM(hdr, bonustype); 1506219089Spjd 1507219089Spjd tb = avl_find(&sa->sa_layout_num_tree, &search, &loc); 1508219089Spjd 1509219089Spjd /* Verify header size is consistent with layout information */ 1510219089Spjd ASSERT(tb); 1511219089Spjd ASSERT(IS_SA_BONUSTYPE(bonustype) && 1512219089Spjd SA_HDR_SIZE_MATCH_LAYOUT(hdr, tb) || !IS_SA_BONUSTYPE(bonustype) || 1513219089Spjd (IS_SA_BONUSTYPE(bonustype) && hdr->sa_layout_info == 0)); 1514219089Spjd 1515219089Spjd /* 1516219089Spjd * See if any of the already existing TOC entries can be reused? 1517219089Spjd */ 1518219089Spjd 1519219089Spjd for (idx_tab = list_head(&tb->lot_idx_tab); idx_tab; 1520219089Spjd idx_tab = list_next(&tb->lot_idx_tab, idx_tab)) { 1521219089Spjd boolean_t valid_idx = B_TRUE; 1522219089Spjd int i; 1523219089Spjd 1524219089Spjd if (tb->lot_var_sizes != 0 && 1525219089Spjd idx_tab->sa_variable_lengths != NULL) { 1526219089Spjd for (i = 0; i != tb->lot_var_sizes; i++) { 1527219089Spjd if (hdr->sa_lengths[i] != 1528219089Spjd idx_tab->sa_variable_lengths[i]) { 1529219089Spjd valid_idx = B_FALSE; 1530219089Spjd break; 1531219089Spjd } 1532219089Spjd } 1533219089Spjd } 1534219089Spjd if (valid_idx) { 1535219089Spjd sa_idx_tab_hold(os, idx_tab); 1536219089Spjd return (idx_tab); 1537219089Spjd } 1538219089Spjd } 1539219089Spjd 1540219089Spjd /* No such luck, create a new entry */ 1541219089Spjd idx_tab = kmem_zalloc(sizeof (sa_idx_tab_t), KM_SLEEP); 1542219089Spjd idx_tab->sa_idx_tab = 1543219089Spjd kmem_zalloc(sizeof (uint32_t) * sa->sa_num_attrs, KM_SLEEP); 1544219089Spjd idx_tab->sa_layout = tb; 1545219089Spjd refcount_create(&idx_tab->sa_refcount); 1546219089Spjd if (tb->lot_var_sizes) 1547219089Spjd idx_tab->sa_variable_lengths = kmem_alloc(sizeof (uint16_t) * 1548219089Spjd tb->lot_var_sizes, KM_SLEEP); 1549219089Spjd 1550219089Spjd sa_attr_iter(os, hdr, bonustype, sa_build_idx_tab, 1551219089Spjd tb, idx_tab); 1552219089Spjd sa_idx_tab_hold(os, idx_tab); /* one hold for consumer */ 1553219089Spjd sa_idx_tab_hold(os, idx_tab); /* one for layout */ 1554219089Spjd list_insert_tail(&tb->lot_idx_tab, idx_tab); 1555219089Spjd return (idx_tab); 1556219089Spjd} 1557219089Spjd 1558219089Spjdvoid 1559219089Spjdsa_default_locator(void **dataptr, uint32_t *len, uint32_t total_len, 1560219089Spjd boolean_t start, void *userdata) 1561219089Spjd{ 1562219089Spjd ASSERT(start); 1563219089Spjd 1564219089Spjd *dataptr = userdata; 1565219089Spjd *len = total_len; 1566219089Spjd} 1567219089Spjd 1568219089Spjdstatic void 1569219089Spjdsa_attr_register_sync(sa_handle_t *hdl, dmu_tx_t *tx) 1570219089Spjd{ 1571219089Spjd uint64_t attr_value = 0; 1572219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 1573219089Spjd sa_attr_table_t *tb = sa->sa_attr_table; 1574219089Spjd int i; 1575219089Spjd 1576219089Spjd mutex_enter(&sa->sa_lock); 1577219089Spjd 1578219089Spjd if (!sa->sa_need_attr_registration || sa->sa_master_obj == 0) { 1579219089Spjd mutex_exit(&sa->sa_lock); 1580219089Spjd return; 1581219089Spjd } 1582219089Spjd 1583219089Spjd if (sa->sa_reg_attr_obj == 0) { 1584236884Smm sa->sa_reg_attr_obj = zap_create_link(hdl->sa_os, 1585236884Smm DMU_OT_SA_ATTR_REGISTRATION, 1586236884Smm sa->sa_master_obj, SA_REGISTRY, tx); 1587219089Spjd } 1588219089Spjd for (i = 0; i != sa->sa_num_attrs; i++) { 1589219089Spjd if (sa->sa_attr_table[i].sa_registered) 1590219089Spjd continue; 1591219089Spjd ATTR_ENCODE(attr_value, tb[i].sa_attr, tb[i].sa_length, 1592219089Spjd tb[i].sa_byteswap); 1593219089Spjd VERIFY(0 == zap_update(hdl->sa_os, sa->sa_reg_attr_obj, 1594219089Spjd tb[i].sa_name, 8, 1, &attr_value, tx)); 1595219089Spjd tb[i].sa_registered = B_TRUE; 1596219089Spjd } 1597219089Spjd sa->sa_need_attr_registration = B_FALSE; 1598219089Spjd mutex_exit(&sa->sa_lock); 1599219089Spjd} 1600219089Spjd 1601219089Spjd/* 1602219089Spjd * Replace all attributes with attributes specified in template. 1603219089Spjd * If dnode had a spill buffer then those attributes will be 1604219089Spjd * also be replaced, possibly with just an empty spill block 1605219089Spjd * 1606219089Spjd * This interface is intended to only be used for bulk adding of 1607219089Spjd * attributes for a new file. It will also be used by the ZPL 1608219089Spjd * when converting and old formatted znode to native SA support. 1609219089Spjd */ 1610219089Spjdint 1611219089Spjdsa_replace_all_by_template_locked(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, 1612219089Spjd int attr_count, dmu_tx_t *tx) 1613219089Spjd{ 1614219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 1615219089Spjd 1616219089Spjd if (sa->sa_need_attr_registration) 1617219089Spjd sa_attr_register_sync(hdl, tx); 1618219089Spjd return (sa_build_layouts(hdl, attr_desc, attr_count, tx)); 1619219089Spjd} 1620219089Spjd 1621219089Spjdint 1622219089Spjdsa_replace_all_by_template(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, 1623219089Spjd int attr_count, dmu_tx_t *tx) 1624219089Spjd{ 1625219089Spjd int error; 1626219089Spjd 1627219089Spjd mutex_enter(&hdl->sa_lock); 1628219089Spjd error = sa_replace_all_by_template_locked(hdl, attr_desc, 1629219089Spjd attr_count, tx); 1630219089Spjd mutex_exit(&hdl->sa_lock); 1631219089Spjd return (error); 1632219089Spjd} 1633219089Spjd 1634219089Spjd/* 1635240345Savg * Add/remove a single attribute or replace a variable-sized attribute value 1636240345Savg * with a value of a different size, and then rewrite the entire set 1637219089Spjd * of attributes. 1638240345Savg * Same-length attribute value replacement (including fixed-length attributes) 1639240345Savg * is handled more efficiently by the upper layers. 1640219089Spjd */ 1641219089Spjdstatic int 1642219089Spjdsa_modify_attrs(sa_handle_t *hdl, sa_attr_type_t newattr, 1643219089Spjd sa_data_op_t action, sa_data_locator_t *locator, void *datastart, 1644219089Spjd uint16_t buflen, dmu_tx_t *tx) 1645219089Spjd{ 1646219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 1647219089Spjd dmu_buf_impl_t *db = (dmu_buf_impl_t *)hdl->sa_bonus; 1648219089Spjd dnode_t *dn; 1649219089Spjd sa_bulk_attr_t *attr_desc; 1650219089Spjd void *old_data[2]; 1651219089Spjd int bonus_attr_count = 0; 1652247187Smm int bonus_data_size = 0; 1653247187Smm int spill_data_size = 0; 1654219089Spjd int spill_attr_count = 0; 1655219089Spjd int error; 1656297106Smav uint16_t length, reg_length; 1657219089Spjd int i, j, k, length_idx; 1658219089Spjd sa_hdr_phys_t *hdr; 1659219089Spjd sa_idx_tab_t *idx_tab; 1660219089Spjd int attr_count; 1661219089Spjd int count; 1662219089Spjd 1663219089Spjd ASSERT(MUTEX_HELD(&hdl->sa_lock)); 1664219089Spjd 1665219089Spjd /* First make of copy of the old data */ 1666219089Spjd 1667219089Spjd DB_DNODE_ENTER(db); 1668219089Spjd dn = DB_DNODE(db); 1669219089Spjd if (dn->dn_bonuslen != 0) { 1670219089Spjd bonus_data_size = hdl->sa_bonus->db_size; 1671219089Spjd old_data[0] = kmem_alloc(bonus_data_size, KM_SLEEP); 1672219089Spjd bcopy(hdl->sa_bonus->db_data, old_data[0], 1673219089Spjd hdl->sa_bonus->db_size); 1674219089Spjd bonus_attr_count = hdl->sa_bonus_tab->sa_layout->lot_attr_count; 1675219089Spjd } else { 1676219089Spjd old_data[0] = NULL; 1677219089Spjd } 1678219089Spjd DB_DNODE_EXIT(db); 1679219089Spjd 1680219089Spjd /* Bring spill buffer online if it isn't currently */ 1681219089Spjd 1682219089Spjd if ((error = sa_get_spill(hdl)) == 0) { 1683219089Spjd spill_data_size = hdl->sa_spill->db_size; 1684219089Spjd old_data[1] = kmem_alloc(spill_data_size, KM_SLEEP); 1685219089Spjd bcopy(hdl->sa_spill->db_data, old_data[1], 1686219089Spjd hdl->sa_spill->db_size); 1687219089Spjd spill_attr_count = 1688219089Spjd hdl->sa_spill_tab->sa_layout->lot_attr_count; 1689219089Spjd } else if (error && error != ENOENT) { 1690219089Spjd if (old_data[0]) 1691219089Spjd kmem_free(old_data[0], bonus_data_size); 1692219089Spjd return (error); 1693219089Spjd } else { 1694219089Spjd old_data[1] = NULL; 1695219089Spjd } 1696219089Spjd 1697219089Spjd /* build descriptor of all attributes */ 1698219089Spjd 1699219089Spjd attr_count = bonus_attr_count + spill_attr_count; 1700219089Spjd if (action == SA_ADD) 1701219089Spjd attr_count++; 1702219089Spjd else if (action == SA_REMOVE) 1703219089Spjd attr_count--; 1704219089Spjd 1705219089Spjd attr_desc = kmem_zalloc(sizeof (sa_bulk_attr_t) * attr_count, KM_SLEEP); 1706219089Spjd 1707219089Spjd /* 1708219089Spjd * loop through bonus and spill buffer if it exists, and 1709219089Spjd * build up new attr_descriptor to reset the attributes 1710219089Spjd */ 1711219089Spjd k = j = 0; 1712219089Spjd count = bonus_attr_count; 1713219089Spjd hdr = SA_GET_HDR(hdl, SA_BONUS); 1714219089Spjd idx_tab = SA_IDX_TAB_GET(hdl, SA_BONUS); 1715219089Spjd for (; k != 2; k++) { 1716297106Smav /* 1717297106Smav * Iterate over each attribute in layout. Fetch the 1718297106Smav * size of variable-length attributes needing rewrite 1719297106Smav * from sa_lengths[]. 1720297106Smav */ 1721219089Spjd for (i = 0, length_idx = 0; i != count; i++) { 1722219089Spjd sa_attr_type_t attr; 1723219089Spjd 1724219089Spjd attr = idx_tab->sa_layout->lot_attrs[i]; 1725297106Smav reg_length = SA_REGISTERED_LEN(sa, attr); 1726297106Smav if (reg_length == 0) { 1727297106Smav length = hdr->sa_lengths[length_idx]; 1728297106Smav length_idx++; 1729297106Smav } else { 1730297106Smav length = reg_length; 1731297106Smav } 1732219089Spjd if (attr == newattr) { 1733297106Smav /* 1734297106Smav * There is nothing to do for SA_REMOVE, 1735297106Smav * so it is just skipped. 1736297106Smav */ 1737297106Smav if (action == SA_REMOVE) 1738297106Smav continue; 1739219089Spjd 1740297106Smav /* 1741297106Smav * Duplicate attributes are not allowed, so the 1742297106Smav * action can not be SA_ADD here. 1743297106Smav */ 1744297106Smav ASSERT3S(action, ==, SA_REPLACE); 1745297106Smav 1746297106Smav /* 1747297106Smav * Only a variable-sized attribute can be 1748297106Smav * replaced here, and its size must be changing. 1749297106Smav */ 1750297106Smav ASSERT3U(reg_length, ==, 0); 1751297106Smav ASSERT3U(length, !=, buflen); 1752219089Spjd SA_ADD_BULK_ATTR(attr_desc, j, attr, 1753297106Smav locator, datastart, buflen); 1754297106Smav } else { 1755297106Smav SA_ADD_BULK_ATTR(attr_desc, j, attr, 1756219089Spjd NULL, (void *) 1757219089Spjd (TOC_OFF(idx_tab->sa_idx_tab[attr]) + 1758219089Spjd (uintptr_t)old_data[k]), length); 1759219089Spjd } 1760219089Spjd } 1761219089Spjd if (k == 0 && hdl->sa_spill) { 1762219089Spjd hdr = SA_GET_HDR(hdl, SA_SPILL); 1763219089Spjd idx_tab = SA_IDX_TAB_GET(hdl, SA_SPILL); 1764219089Spjd count = spill_attr_count; 1765219089Spjd } else { 1766219089Spjd break; 1767219089Spjd } 1768219089Spjd } 1769219089Spjd if (action == SA_ADD) { 1770297106Smav reg_length = SA_REGISTERED_LEN(sa, newattr); 1771297106Smav IMPLY(reg_length != 0, reg_length == buflen); 1772219089Spjd SA_ADD_BULK_ATTR(attr_desc, j, newattr, locator, 1773219089Spjd datastart, buflen); 1774219089Spjd } 1775240345Savg ASSERT3U(j, ==, attr_count); 1776219089Spjd 1777219089Spjd error = sa_build_layouts(hdl, attr_desc, attr_count, tx); 1778219089Spjd 1779219089Spjd if (old_data[0]) 1780219089Spjd kmem_free(old_data[0], bonus_data_size); 1781219089Spjd if (old_data[1]) 1782219089Spjd kmem_free(old_data[1], spill_data_size); 1783219089Spjd kmem_free(attr_desc, sizeof (sa_bulk_attr_t) * attr_count); 1784219089Spjd 1785219089Spjd return (error); 1786219089Spjd} 1787219089Spjd 1788219089Spjdstatic int 1789219089Spjdsa_bulk_update_impl(sa_handle_t *hdl, sa_bulk_attr_t *bulk, int count, 1790219089Spjd dmu_tx_t *tx) 1791219089Spjd{ 1792219089Spjd int error; 1793219089Spjd sa_os_t *sa = hdl->sa_os->os_sa; 1794219089Spjd dmu_object_type_t bonustype; 1795219089Spjd 1796219089Spjd bonustype = SA_BONUSTYPE_FROM_DB(SA_GET_DB(hdl, SA_BONUS)); 1797219089Spjd 1798219089Spjd ASSERT(hdl); 1799219089Spjd ASSERT(MUTEX_HELD(&hdl->sa_lock)); 1800219089Spjd 1801219089Spjd /* sync out registration table if necessary */ 1802219089Spjd if (sa->sa_need_attr_registration) 1803219089Spjd sa_attr_register_sync(hdl, tx); 1804219089Spjd 1805219089Spjd error = sa_attr_op(hdl, bulk, count, SA_UPDATE, tx); 1806219089Spjd if (error == 0 && !IS_SA_BONUSTYPE(bonustype) && sa->sa_update_cb) 1807219089Spjd sa->sa_update_cb(hdl, tx); 1808219089Spjd 1809219089Spjd return (error); 1810219089Spjd} 1811219089Spjd 1812219089Spjd/* 1813219089Spjd * update or add new attribute 1814219089Spjd */ 1815219089Spjdint 1816219089Spjdsa_update(sa_handle_t *hdl, sa_attr_type_t type, 1817219089Spjd void *buf, uint32_t buflen, dmu_tx_t *tx) 1818219089Spjd{ 1819219089Spjd int error; 1820219089Spjd sa_bulk_attr_t bulk; 1821219089Spjd 1822219089Spjd bulk.sa_attr = type; 1823219089Spjd bulk.sa_data_func = NULL; 1824219089Spjd bulk.sa_length = buflen; 1825219089Spjd bulk.sa_data = buf; 1826219089Spjd 1827219089Spjd mutex_enter(&hdl->sa_lock); 1828219089Spjd error = sa_bulk_update_impl(hdl, &bulk, 1, tx); 1829219089Spjd mutex_exit(&hdl->sa_lock); 1830219089Spjd return (error); 1831219089Spjd} 1832219089Spjd 1833219089Spjdint 1834219089Spjdsa_update_from_cb(sa_handle_t *hdl, sa_attr_type_t attr, 1835219089Spjd uint32_t buflen, sa_data_locator_t *locator, void *userdata, dmu_tx_t *tx) 1836219089Spjd{ 1837219089Spjd int error; 1838219089Spjd sa_bulk_attr_t bulk; 1839219089Spjd 1840219089Spjd bulk.sa_attr = attr; 1841219089Spjd bulk.sa_data = userdata; 1842219089Spjd bulk.sa_data_func = locator; 1843219089Spjd bulk.sa_length = buflen; 1844219089Spjd 1845219089Spjd mutex_enter(&hdl->sa_lock); 1846219089Spjd error = sa_bulk_update_impl(hdl, &bulk, 1, tx); 1847219089Spjd mutex_exit(&hdl->sa_lock); 1848219089Spjd return (error); 1849219089Spjd} 1850219089Spjd 1851219089Spjd/* 1852219089Spjd * Return size of an attribute 1853219089Spjd */ 1854219089Spjd 1855219089Spjdint 1856219089Spjdsa_size(sa_handle_t *hdl, sa_attr_type_t attr, int *size) 1857219089Spjd{ 1858219089Spjd sa_bulk_attr_t bulk; 1859219089Spjd int error; 1860219089Spjd 1861219089Spjd bulk.sa_data = NULL; 1862219089Spjd bulk.sa_attr = attr; 1863219089Spjd bulk.sa_data_func = NULL; 1864219089Spjd 1865219089Spjd ASSERT(hdl); 1866219089Spjd mutex_enter(&hdl->sa_lock); 1867219089Spjd if ((error = sa_attr_op(hdl, &bulk, 1, SA_LOOKUP, NULL)) != 0) { 1868219089Spjd mutex_exit(&hdl->sa_lock); 1869219089Spjd return (error); 1870219089Spjd } 1871219089Spjd *size = bulk.sa_size; 1872219089Spjd 1873219089Spjd mutex_exit(&hdl->sa_lock); 1874219089Spjd return (0); 1875219089Spjd} 1876219089Spjd 1877219089Spjdint 1878219089Spjdsa_bulk_lookup_locked(sa_handle_t *hdl, sa_bulk_attr_t *attrs, int count) 1879219089Spjd{ 1880219089Spjd ASSERT(hdl); 1881219089Spjd ASSERT(MUTEX_HELD(&hdl->sa_lock)); 1882219089Spjd return (sa_lookup_impl(hdl, attrs, count)); 1883219089Spjd} 1884219089Spjd 1885219089Spjdint 1886219089Spjdsa_bulk_lookup(sa_handle_t *hdl, sa_bulk_attr_t *attrs, int count) 1887219089Spjd{ 1888219089Spjd int error; 1889219089Spjd 1890219089Spjd ASSERT(hdl); 1891219089Spjd mutex_enter(&hdl->sa_lock); 1892219089Spjd error = sa_bulk_lookup_locked(hdl, attrs, count); 1893219089Spjd mutex_exit(&hdl->sa_lock); 1894219089Spjd return (error); 1895219089Spjd} 1896219089Spjd 1897219089Spjdint 1898219089Spjdsa_bulk_update(sa_handle_t *hdl, sa_bulk_attr_t *attrs, int count, dmu_tx_t *tx) 1899219089Spjd{ 1900219089Spjd int error; 1901219089Spjd 1902219089Spjd ASSERT(hdl); 1903219089Spjd mutex_enter(&hdl->sa_lock); 1904219089Spjd error = sa_bulk_update_impl(hdl, attrs, count, tx); 1905219089Spjd mutex_exit(&hdl->sa_lock); 1906219089Spjd return (error); 1907219089Spjd} 1908219089Spjd 1909219089Spjdint 1910219089Spjdsa_remove(sa_handle_t *hdl, sa_attr_type_t attr, dmu_tx_t *tx) 1911219089Spjd{ 1912219089Spjd int error; 1913219089Spjd 1914219089Spjd mutex_enter(&hdl->sa_lock); 1915219089Spjd error = sa_modify_attrs(hdl, attr, SA_REMOVE, NULL, 1916219089Spjd NULL, 0, tx); 1917219089Spjd mutex_exit(&hdl->sa_lock); 1918219089Spjd return (error); 1919219089Spjd} 1920219089Spjd 1921219089Spjdvoid 1922219089Spjdsa_object_info(sa_handle_t *hdl, dmu_object_info_t *doi) 1923219089Spjd{ 1924219089Spjd dmu_object_info_from_db((dmu_buf_t *)hdl->sa_bonus, doi); 1925219089Spjd} 1926219089Spjd 1927219089Spjdvoid 1928219089Spjdsa_object_size(sa_handle_t *hdl, uint32_t *blksize, u_longlong_t *nblocks) 1929219089Spjd{ 1930219089Spjd dmu_object_size_from_db((dmu_buf_t *)hdl->sa_bonus, 1931219089Spjd blksize, nblocks); 1932219089Spjd} 1933219089Spjd 1934219089Spjdvoid 1935219089Spjdsa_set_userp(sa_handle_t *hdl, void *ptr) 1936219089Spjd{ 1937219089Spjd hdl->sa_userp = ptr; 1938219089Spjd} 1939219089Spjd 1940219089Spjddmu_buf_t * 1941219089Spjdsa_get_db(sa_handle_t *hdl) 1942219089Spjd{ 1943219089Spjd return ((dmu_buf_t *)hdl->sa_bonus); 1944219089Spjd} 1945219089Spjd 1946219089Spjdvoid * 1947219089Spjdsa_get_userdata(sa_handle_t *hdl) 1948219089Spjd{ 1949219089Spjd return (hdl->sa_userp); 1950219089Spjd} 1951219089Spjd 1952219089Spjdvoid 1953219089Spjdsa_register_update_callback_locked(objset_t *os, sa_update_cb_t *func) 1954219089Spjd{ 1955219089Spjd ASSERT(MUTEX_HELD(&os->os_sa->sa_lock)); 1956219089Spjd os->os_sa->sa_update_cb = func; 1957219089Spjd} 1958219089Spjd 1959219089Spjdvoid 1960219089Spjdsa_register_update_callback(objset_t *os, sa_update_cb_t *func) 1961219089Spjd{ 1962219089Spjd 1963219089Spjd mutex_enter(&os->os_sa->sa_lock); 1964219089Spjd sa_register_update_callback_locked(os, func); 1965219089Spjd mutex_exit(&os->os_sa->sa_lock); 1966219089Spjd} 1967219089Spjd 1968219089Spjduint64_t 1969219089Spjdsa_handle_object(sa_handle_t *hdl) 1970219089Spjd{ 1971219089Spjd return (hdl->sa_bonus->db_object); 1972219089Spjd} 1973219089Spjd 1974219089Spjdboolean_t 1975219089Spjdsa_enabled(objset_t *os) 1976219089Spjd{ 1977219089Spjd return (os->os_sa == NULL); 1978219089Spjd} 1979219089Spjd 1980219089Spjdint 1981219089Spjdsa_set_sa_object(objset_t *os, uint64_t sa_object) 1982219089Spjd{ 1983219089Spjd sa_os_t *sa = os->os_sa; 1984219089Spjd 1985219089Spjd if (sa->sa_master_obj) 1986219089Spjd return (1); 1987219089Spjd 1988219089Spjd sa->sa_master_obj = sa_object; 1989219089Spjd 1990219089Spjd return (0); 1991219089Spjd} 1992219089Spjd 1993219089Spjdint 1994219089Spjdsa_hdrsize(void *arg) 1995219089Spjd{ 1996219089Spjd sa_hdr_phys_t *hdr = arg; 1997219089Spjd 1998219089Spjd return (SA_HDR_SIZE(hdr)); 1999219089Spjd} 2000219089Spjd 2001219089Spjdvoid 2002219089Spjdsa_handle_lock(sa_handle_t *hdl) 2003219089Spjd{ 2004219089Spjd ASSERT(hdl); 2005219089Spjd mutex_enter(&hdl->sa_lock); 2006219089Spjd} 2007219089Spjd 2008219089Spjdvoid 2009219089Spjdsa_handle_unlock(sa_handle_t *hdl) 2010219089Spjd{ 2011219089Spjd ASSERT(hdl); 2012219089Spjd mutex_exit(&hdl->sa_lock); 2013219089Spjd} 2014