1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5436b2950Sperrin * Common Development and Distribution License (the "License"). 6436b2950Sperrin * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 223589c4f0SNeil Perrin * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_ZIL_H 27fa9e4066Sahrens #define _SYS_ZIL_H 28fa9e4066Sahrens 29fa9e4066Sahrens #include <sys/types.h> 30fa9e4066Sahrens #include <sys/spa.h> 31fa9e4066Sahrens #include <sys/zio.h> 32fa9e4066Sahrens #include <sys/dmu.h> 33fa9e4066Sahrens 34fa9e4066Sahrens #ifdef __cplusplus 35fa9e4066Sahrens extern "C" { 36fa9e4066Sahrens #endif 37fa9e4066Sahrens 38fa9e4066Sahrens /* 39fa9e4066Sahrens * Intent log format: 40fa9e4066Sahrens * 41fa9e4066Sahrens * Each objset has its own intent log. The log header (zil_header_t) 42fa9e4066Sahrens * for objset N's intent log is kept in the Nth object of the SPA's 43fa9e4066Sahrens * intent_log objset. The log header points to a chain of log blocks, 44fa9e4066Sahrens * each of which contains log records (i.e., transactions) followed by 45fa9e4066Sahrens * a log block trailer (zil_trailer_t). The format of a log record 46fa9e4066Sahrens * depends on the record (or transaction) type, but all records begin 47fa9e4066Sahrens * with a common structure that defines the type, length, and txg. 48fa9e4066Sahrens */ 49fa9e4066Sahrens 50fa9e4066Sahrens /* 51fa9e4066Sahrens * Intent log header - this on disk structure holds fields to manage 52fa9e4066Sahrens * the log. All fields are 64 bit to easily handle cross architectures. 53fa9e4066Sahrens */ 54fa9e4066Sahrens typedef struct zil_header { 55fa9e4066Sahrens uint64_t zh_claim_txg; /* txg in which log blocks were claimed */ 56fa9e4066Sahrens uint64_t zh_replay_seq; /* highest replayed sequence number */ 57fa9e4066Sahrens blkptr_t zh_log; /* log chain */ 58d80c45e0Sbonwick uint64_t zh_claim_seq; /* highest claimed sequence number */ 593589c4f0SNeil Perrin uint64_t zh_flags; /* header flags */ 603589c4f0SNeil Perrin uint64_t zh_pad[4]; 61fa9e4066Sahrens } zil_header_t; 62fa9e4066Sahrens 633589c4f0SNeil Perrin /* 643589c4f0SNeil Perrin * zh_flags bit settings 653589c4f0SNeil Perrin */ 663589c4f0SNeil Perrin #define ZIL_REPLAY_NEEDED 0x1 /* replay needed - internal only */ 673589c4f0SNeil Perrin 68fa9e4066Sahrens /* 69fa9e4066Sahrens * Log block trailer - structure at the end of the header and each log block 70fa9e4066Sahrens * 71fa9e4066Sahrens * The zit_bt contains a zbt_cksum which for the intent log is 72fa9e4066Sahrens * the sequence number of this log block. A seq of 0 is invalid. 73fa9e4066Sahrens * The zbt_cksum is checked by the SPA against the sequence 74fa9e4066Sahrens * number passed in the blk_cksum field of the blkptr_t 75fa9e4066Sahrens */ 76fa9e4066Sahrens typedef struct zil_trailer { 77fa9e4066Sahrens uint64_t zit_pad; 78fa9e4066Sahrens blkptr_t zit_next_blk; /* next block in chain */ 79fa9e4066Sahrens uint64_t zit_nused; /* bytes in log block used */ 80fa9e4066Sahrens zio_block_tail_t zit_bt; /* block trailer */ 81fa9e4066Sahrens } zil_trailer_t; 82fa9e4066Sahrens 83b4d654b0Sperrin #define ZIL_MIN_BLKSZ 4096ULL 84fa9e4066Sahrens #define ZIL_MAX_BLKSZ SPA_MAXBLOCKSIZE 85fa9e4066Sahrens #define ZIL_BLK_DATA_SZ(lwb) ((lwb)->lwb_sz - sizeof (zil_trailer_t)) 86fa9e4066Sahrens 87d80c45e0Sbonwick /* 88d80c45e0Sbonwick * The words of a log block checksum. 89d80c45e0Sbonwick */ 90d80c45e0Sbonwick #define ZIL_ZC_GUID_0 0 91d80c45e0Sbonwick #define ZIL_ZC_GUID_1 1 92d80c45e0Sbonwick #define ZIL_ZC_OBJSET 2 93d80c45e0Sbonwick #define ZIL_ZC_SEQ 3 94d80c45e0Sbonwick 95da6c28aaSamw typedef enum zil_create { 96da6c28aaSamw Z_FILE, 97da6c28aaSamw Z_DIR, 98da6c28aaSamw Z_XATTRDIR, 99da6c28aaSamw } zil_create_t; 100da6c28aaSamw 101da6c28aaSamw /* 102da6c28aaSamw * size of xvattr log section. 103da6c28aaSamw * its composed of lr_attr_t + xvattr bitmap + 2 64 bit timestamps 104da6c28aaSamw * for create time and a single 64 bit integer for all of the attributes, 105da6c28aaSamw * and 4 64 bit integers (32 bytes) for the scanstamp. 106da6c28aaSamw * 107da6c28aaSamw */ 108da6c28aaSamw 109da6c28aaSamw #define ZIL_XVAT_SIZE(mapsize) \ 110da6c28aaSamw sizeof (lr_attr_t) + (sizeof (uint32_t) * (mapsize - 1)) + \ 111da6c28aaSamw (sizeof (uint64_t) * 7) 112569e6c63Smarks 113569e6c63Smarks /* 114569e6c63Smarks * Size of ACL in log. The ACE data is padded out to properly align 115569e6c63Smarks * on 8 byte boundary. 116569e6c63Smarks */ 117569e6c63Smarks 118569e6c63Smarks #define ZIL_ACE_LENGTH(x) (roundup(x, sizeof (uint64_t))) 119569e6c63Smarks 120fa9e4066Sahrens /* 121fa9e4066Sahrens * Intent log transaction types and record structures 122fa9e4066Sahrens */ 123da6c28aaSamw #define TX_CREATE 1 /* Create file */ 124da6c28aaSamw #define TX_MKDIR 2 /* Make directory */ 125da6c28aaSamw #define TX_MKXATTR 3 /* Make XATTR directory */ 126da6c28aaSamw #define TX_SYMLINK 4 /* Create symbolic link to a file */ 127da6c28aaSamw #define TX_REMOVE 5 /* Remove file */ 128da6c28aaSamw #define TX_RMDIR 6 /* Remove directory */ 129da6c28aaSamw #define TX_LINK 7 /* Create hard link to a file */ 130da6c28aaSamw #define TX_RENAME 8 /* Rename a file */ 131da6c28aaSamw #define TX_WRITE 9 /* File write */ 132da6c28aaSamw #define TX_TRUNCATE 10 /* Truncate a file */ 133da6c28aaSamw #define TX_SETATTR 11 /* Set file attributes */ 134da6c28aaSamw #define TX_ACL_V0 12 /* Set old formatted ACL */ 135da6c28aaSamw #define TX_ACL 13 /* Set ACL */ 136da6c28aaSamw #define TX_CREATE_ACL 14 /* create with ACL */ 137da6c28aaSamw #define TX_CREATE_ATTR 15 /* create + attrs */ 138da6c28aaSamw #define TX_CREATE_ACL_ATTR 16 /* create with ACL + attrs */ 139da6c28aaSamw #define TX_MKDIR_ACL 17 /* mkdir with ACL */ 140da6c28aaSamw #define TX_MKDIR_ATTR 18 /* mkdir with attr */ 141da6c28aaSamw #define TX_MKDIR_ACL_ATTR 19 /* mkdir with ACL + attrs */ 142da6c28aaSamw #define TX_MAX_TYPE 20 /* Max transaction type */ 143da6c28aaSamw 144da6c28aaSamw /* 145da6c28aaSamw * The transactions for mkdir, symlink, remove, rmdir, link, and rename 146da6c28aaSamw * may have the following bit set, indicating the original request 147da6c28aaSamw * specified case-insensitive handling of names. 148da6c28aaSamw */ 149da6c28aaSamw #define TX_CI ((uint64_t)0x1 << 63) /* case-insensitive behavior requested */ 150fa9e4066Sahrens 151fa9e4066Sahrens /* 152fa9e4066Sahrens * Format of log records. 153fa9e4066Sahrens * The fields are carefully defined to allow them to be aligned 154fa9e4066Sahrens * and sized the same on sparc & intel architectures. 155fa9e4066Sahrens * Each log record has a common structure at the beginning. 156b19a79ecSperrin * 157b19a79ecSperrin * Note, lrc_seq holds two different sequence numbers. Whilst in memory 158b19a79ecSperrin * it contains the transaction sequence number. The log record on 159b19a79ecSperrin * disk holds the sequence number of all log records which is used to 160b19a79ecSperrin * ensure we don't replay the same record. The two sequence numbers are 161b19a79ecSperrin * different because the transactions can now be pushed out of order. 162fa9e4066Sahrens */ 163fa9e4066Sahrens typedef struct { /* common log record header */ 164fa9e4066Sahrens uint64_t lrc_txtype; /* intent log transaction type */ 165fa9e4066Sahrens uint64_t lrc_reclen; /* transaction record length */ 166fa9e4066Sahrens uint64_t lrc_txg; /* dmu transaction group number */ 167b19a79ecSperrin uint64_t lrc_seq; /* see comment above */ 168fa9e4066Sahrens } lr_t; 169fa9e4066Sahrens 170da6c28aaSamw /* 171da6c28aaSamw * Handle option extended vattr attributes. 172da6c28aaSamw * 173da6c28aaSamw * Whenever new attributes are added the version number 174da6c28aaSamw * will need to be updated as will code in 175da6c28aaSamw * zfs_log.c and zfs_replay.c 176da6c28aaSamw */ 177da6c28aaSamw typedef struct { 178da6c28aaSamw uint32_t lr_attr_masksize; /* number of elements in array */ 179da6c28aaSamw uint32_t lr_attr_bitmap; /* First entry of array */ 180da6c28aaSamw /* remainder of array and any additional fields */ 181da6c28aaSamw } lr_attr_t; 182da6c28aaSamw 183da6c28aaSamw /* 184da6c28aaSamw * log record for creates without optional ACL. 185da6c28aaSamw * This log record does support optional xvattr_t attributes. 186da6c28aaSamw */ 187fa9e4066Sahrens typedef struct { 188fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 189fa9e4066Sahrens uint64_t lr_doid; /* object id of directory */ 190fa9e4066Sahrens uint64_t lr_foid; /* object id of created file object */ 191fa9e4066Sahrens uint64_t lr_mode; /* mode of object */ 192fa9e4066Sahrens uint64_t lr_uid; /* uid of object */ 193fa9e4066Sahrens uint64_t lr_gid; /* gid of object */ 194fa9e4066Sahrens uint64_t lr_gen; /* generation (txg of creation) */ 195fa9e4066Sahrens uint64_t lr_crtime[2]; /* creation time */ 196fa9e4066Sahrens uint64_t lr_rdev; /* rdev of object to create */ 197fa9e4066Sahrens /* name of object to create follows this */ 198fa9e4066Sahrens /* for symlinks, link content follows name */ 199da6c28aaSamw /* for creates with xvattr data, the name follows the xvattr info */ 200fa9e4066Sahrens } lr_create_t; 201fa9e4066Sahrens 202da6c28aaSamw /* 203da6c28aaSamw * FUID ACL record will be an array of ACEs from the original ACL. 204da6c28aaSamw * If this array includes ephemeral IDs, the record will also include 205da6c28aaSamw * an array of log-specific FUIDs to replace the ephemeral IDs. 206da6c28aaSamw * Only one copy of each unique domain will be present, so the log-specific 207da6c28aaSamw * FUIDs will use an index into a compressed domain table. On replay this 208da6c28aaSamw * information will be used to construct real FUIDs (and bypass idmap, 209da6c28aaSamw * since it may not be available). 210da6c28aaSamw */ 211da6c28aaSamw 212da6c28aaSamw /* 213da6c28aaSamw * Log record for creates with optional ACL 214da6c28aaSamw * This log record is also used for recording any FUID 215da6c28aaSamw * information needed for replaying the create. If the 216da6c28aaSamw * file doesn't have any actual ACEs then the lr_aclcnt 217da6c28aaSamw * would be zero. 218da6c28aaSamw */ 219da6c28aaSamw typedef struct { 220da6c28aaSamw lr_create_t lr_create; /* common create portion */ 221da6c28aaSamw uint64_t lr_aclcnt; /* number of ACEs in ACL */ 222da6c28aaSamw uint64_t lr_domcnt; /* number of unique domains */ 223da6c28aaSamw uint64_t lr_fuidcnt; /* number of real fuids */ 224da6c28aaSamw uint64_t lr_acl_bytes; /* number of bytes in ACL */ 225da6c28aaSamw uint64_t lr_acl_flags; /* ACL flags */ 226da6c28aaSamw /* lr_acl_bytes number of variable sized ace's follows */ 227da6c28aaSamw /* if create is also setting xvattr's, then acl data follows xvattr */ 228da6c28aaSamw /* if ACE FUIDs are needed then they will follow the xvattr_t */ 229da6c28aaSamw /* Following the FUIDs will be the domain table information. */ 230da6c28aaSamw /* The FUIDs for the owner and group will be in the lr_create */ 231da6c28aaSamw /* portion of the record. */ 232da6c28aaSamw /* name follows ACL data */ 233da6c28aaSamw } lr_acl_create_t; 234da6c28aaSamw 235fa9e4066Sahrens typedef struct { 236fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 237fa9e4066Sahrens uint64_t lr_doid; /* obj id of directory */ 238fa9e4066Sahrens /* name of object to remove follows this */ 239fa9e4066Sahrens } lr_remove_t; 240fa9e4066Sahrens 241fa9e4066Sahrens typedef struct { 242fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 243fa9e4066Sahrens uint64_t lr_doid; /* obj id of directory */ 244fa9e4066Sahrens uint64_t lr_link_obj; /* obj id of link */ 245fa9e4066Sahrens /* name of object to link follows this */ 246fa9e4066Sahrens } lr_link_t; 247fa9e4066Sahrens 248fa9e4066Sahrens typedef struct { 249fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 250fa9e4066Sahrens uint64_t lr_sdoid; /* obj id of source directory */ 251fa9e4066Sahrens uint64_t lr_tdoid; /* obj id of target directory */ 252fa9e4066Sahrens /* 2 strings: names of source and destination follow this */ 253fa9e4066Sahrens } lr_rename_t; 254fa9e4066Sahrens 255fa9e4066Sahrens typedef struct { 256fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 257fa9e4066Sahrens uint64_t lr_foid; /* file object to write */ 258fa9e4066Sahrens uint64_t lr_offset; /* offset to write to */ 259fa9e4066Sahrens uint64_t lr_length; /* user data length to write */ 260fa9e4066Sahrens uint64_t lr_blkoff; /* offset represented by lr_blkptr */ 261fa9e4066Sahrens blkptr_t lr_blkptr; /* spa block pointer for replay */ 262fa9e4066Sahrens /* write data will follow for small writes */ 263fa9e4066Sahrens } lr_write_t; 264fa9e4066Sahrens 265fa9e4066Sahrens typedef struct { 266fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 267fa9e4066Sahrens uint64_t lr_foid; /* object id of file to truncate */ 268fa9e4066Sahrens uint64_t lr_offset; /* offset to truncate from */ 269fa9e4066Sahrens uint64_t lr_length; /* length to truncate */ 270fa9e4066Sahrens } lr_truncate_t; 271fa9e4066Sahrens 272fa9e4066Sahrens typedef struct { 273fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 274fa9e4066Sahrens uint64_t lr_foid; /* file object to change attributes */ 275fa9e4066Sahrens uint64_t lr_mask; /* mask of attributes to set */ 276fa9e4066Sahrens uint64_t lr_mode; /* mode to set */ 277fa9e4066Sahrens uint64_t lr_uid; /* uid to set */ 278fa9e4066Sahrens uint64_t lr_gid; /* gid to set */ 279fa9e4066Sahrens uint64_t lr_size; /* size to set */ 280fa9e4066Sahrens uint64_t lr_atime[2]; /* access time */ 281fa9e4066Sahrens uint64_t lr_mtime[2]; /* modification time */ 282da6c28aaSamw /* optional attribute lr_attr_t may be here */ 283fa9e4066Sahrens } lr_setattr_t; 284fa9e4066Sahrens 285fa9e4066Sahrens typedef struct { 286fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 287fa9e4066Sahrens uint64_t lr_foid; /* obj id of file */ 288fa9e4066Sahrens uint64_t lr_aclcnt; /* number of acl entries */ 289fa9e4066Sahrens /* lr_aclcnt number of ace_t entries follow this */ 290da6c28aaSamw } lr_acl_v0_t; 291da6c28aaSamw 292da6c28aaSamw typedef struct { 293da6c28aaSamw lr_t lr_common; /* common portion of log record */ 294da6c28aaSamw uint64_t lr_foid; /* obj id of file */ 295da6c28aaSamw uint64_t lr_aclcnt; /* number of ACEs in ACL */ 296da6c28aaSamw uint64_t lr_domcnt; /* number of unique domains */ 297da6c28aaSamw uint64_t lr_fuidcnt; /* number of real fuids */ 298da6c28aaSamw uint64_t lr_acl_bytes; /* number of bytes in ACL */ 299da6c28aaSamw uint64_t lr_acl_flags; /* ACL flags */ 300da6c28aaSamw /* lr_acl_bytes number of variable sized ace's follows */ 301fa9e4066Sahrens } lr_acl_t; 302fa9e4066Sahrens 303fa9e4066Sahrens /* 304fa9e4066Sahrens * ZIL structure definitions, interface function prototype and globals. 305fa9e4066Sahrens */ 306fa9e4066Sahrens 307fa9e4066Sahrens /* 308510b6c0eSNeil Perrin * Writes are handled in three different ways: 309510b6c0eSNeil Perrin * 310510b6c0eSNeil Perrin * WR_INDIRECT: 311510b6c0eSNeil Perrin * In this mode, if we need to commit the write later, then the block 312510b6c0eSNeil Perrin * is immediately written into the file system (using dmu_sync), 313510b6c0eSNeil Perrin * and a pointer to the block is put into the log record. 314510b6c0eSNeil Perrin * When the txg commits the block is linked in. 315510b6c0eSNeil Perrin * This saves additionally writing the data into the log record. 316510b6c0eSNeil Perrin * There are a few requirements for this to occur: 317510b6c0eSNeil Perrin * - write is greater than zfs/zvol_immediate_write_sz 318510b6c0eSNeil Perrin * - not using slogs (as slogs are assumed to always be faster 319510b6c0eSNeil Perrin * than writing into the main pool) 320510b6c0eSNeil Perrin * - the write occupies only one block 321510b6c0eSNeil Perrin * WR_COPIED: 322510b6c0eSNeil Perrin * If we know we'll immediately be committing the 323510b6c0eSNeil Perrin * transaction (FSYNC or FDSYNC), the we allocate a larger 324510b6c0eSNeil Perrin * log record here for the data and copy the data in. 325510b6c0eSNeil Perrin * WR_NEED_COPY: 326510b6c0eSNeil Perrin * Otherwise we don't allocate a buffer, and *if* we need to 327510b6c0eSNeil Perrin * flush the write later then a buffer is allocated and 328510b6c0eSNeil Perrin * we retrieve the data using the dmu. 329fa9e4066Sahrens */ 330104e2ed7Sperrin typedef enum { 331104e2ed7Sperrin WR_INDIRECT, /* indirect - a large write (dmu_sync() data */ 332104e2ed7Sperrin /* and put blkptr in log, rather than actual data) */ 333104e2ed7Sperrin WR_COPIED, /* immediate - data is copied into lr_write_t */ 334104e2ed7Sperrin WR_NEED_COPY, /* immediate - data needs to be copied if pushed */ 335104e2ed7Sperrin } itx_wr_state_t; 336104e2ed7Sperrin 337fa9e4066Sahrens typedef struct itx { 338fa9e4066Sahrens list_node_t itx_node; /* linkage on zl_itx_list */ 339fa9e4066Sahrens void *itx_private; /* type-specific opaque data */ 340104e2ed7Sperrin itx_wr_state_t itx_wr_state; /* write state */ 34167bd71c6Sperrin uint8_t itx_sync; /* synchronous transaction */ 342abf76b6eSperrin uint64_t itx_sod; /* record size on disk */ 343fa9e4066Sahrens lr_t itx_lr; /* common part of log record */ 344fa9e4066Sahrens /* followed by type-specific part of lr_xx_t and its immediate data */ 345fa9e4066Sahrens } itx_t; 346fa9e4066Sahrens 34767bd71c6Sperrin 34867bd71c6Sperrin /* 34967bd71c6Sperrin * zgd_t is passed through dmu_sync() to the callback routine zfs_get_done() 35067bd71c6Sperrin * to handle the cleanup of the dmu_sync() buffer write 35167bd71c6Sperrin */ 35267bd71c6Sperrin typedef struct { 35367bd71c6Sperrin zilog_t *zgd_zilog; /* zilog */ 35467bd71c6Sperrin blkptr_t *zgd_bp; /* block pointer */ 35567bd71c6Sperrin struct rl *zgd_rl; /* range lock */ 35667bd71c6Sperrin } zgd_t; 35767bd71c6Sperrin 35867bd71c6Sperrin 359fa9e4066Sahrens typedef void zil_parse_blk_func_t(zilog_t *zilog, blkptr_t *bp, void *arg, 360fa9e4066Sahrens uint64_t txg); 361fa9e4066Sahrens typedef void zil_parse_lr_func_t(zilog_t *zilog, lr_t *lr, void *arg, 362fa9e4066Sahrens uint64_t txg); 363fa9e4066Sahrens typedef int zil_replay_func_t(); 364c5c6ffa0Smaybee typedef int zil_get_data_t(void *arg, lr_write_t *lr, char *dbuf, zio_t *zio); 365fa9e4066Sahrens 366d80c45e0Sbonwick extern uint64_t zil_parse(zilog_t *zilog, zil_parse_blk_func_t *parse_blk_func, 367fa9e4066Sahrens zil_parse_lr_func_t *parse_lr_func, void *arg, uint64_t txg); 368fa9e4066Sahrens 369fa9e4066Sahrens extern void zil_init(void); 370fa9e4066Sahrens extern void zil_fini(void); 371fa9e4066Sahrens 372fa9e4066Sahrens extern zilog_t *zil_alloc(objset_t *os, zil_header_t *zh_phys); 373fa9e4066Sahrens extern void zil_free(zilog_t *zilog); 374fa9e4066Sahrens 375fa9e4066Sahrens extern zilog_t *zil_open(objset_t *os, zil_get_data_t *get_data); 376fa9e4066Sahrens extern void zil_close(zilog_t *zilog); 377fa9e4066Sahrens 3781209a471SNeil Perrin extern void zil_replay(objset_t *os, void *arg, 3791209a471SNeil Perrin zil_replay_func_t *replay_func[TX_MAX_TYPE]); 380d80c45e0Sbonwick extern void zil_destroy(zilog_t *zilog, boolean_t keep_first); 3813a8a1de4Sperrin extern void zil_rollback_destroy(zilog_t *zilog, dmu_tx_t *tx); 382fa9e4066Sahrens 383da6c28aaSamw extern itx_t *zil_itx_create(uint64_t txtype, size_t lrsize); 384fa9e4066Sahrens extern uint64_t zil_itx_assign(zilog_t *zilog, itx_t *itx, dmu_tx_t *tx); 385fa9e4066Sahrens 386b19a79ecSperrin extern void zil_commit(zilog_t *zilog, uint64_t seq, uint64_t oid); 387fa9e4066Sahrens 388e6ca193dSGeorge Wilson extern int zil_vdev_offline(char *osname, void *txarg); 3891d452cf5Sahrens extern int zil_claim(char *osname, void *txarg); 390b87f3af3Sperrin extern int zil_check_log_chain(char *osname, void *txarg); 391fa9e4066Sahrens extern void zil_sync(zilog_t *zilog, dmu_tx_t *tx); 392fa9e4066Sahrens extern void zil_clean(zilog_t *zilog); 393436b2950Sperrin extern int zil_is_committed(zilog_t *zilog); 394fa9e4066Sahrens 395fa9e4066Sahrens extern int zil_suspend(zilog_t *zilog); 396fa9e4066Sahrens extern void zil_resume(zilog_t *zilog); 397fa9e4066Sahrens 39817f17c2dSbonwick extern void zil_add_block(zilog_t *zilog, blkptr_t *bp); 39967bd71c6Sperrin 400*e09fa4daSNeil Perrin extern void zil_set_logbias(zilog_t *zilog, uint64_t slogval); 401*e09fa4daSNeil Perrin 402fa9e4066Sahrens extern int zil_disable; 403fa9e4066Sahrens 404fa9e4066Sahrens #ifdef __cplusplus 405fa9e4066Sahrens } 406fa9e4066Sahrens #endif 407fa9e4066Sahrens 408fa9e4066Sahrens #endif /* _SYS_ZIL_H */ 409