1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * 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 /* 22*b5fca8f8Stomee * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_FS_ZFS_ZNODE_H 27fa9e4066Sahrens #define _SYS_FS_ZFS_ZNODE_H 28fa9e4066Sahrens 29fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 30fa9e4066Sahrens 31fa9e4066Sahrens #ifdef _KERNEL 32fa9e4066Sahrens #include <sys/isa_defs.h> 33fa9e4066Sahrens #include <sys/types32.h> 34da6c28aaSamw #include <sys/attr.h> 35fa9e4066Sahrens #include <sys/list.h> 36fa9e4066Sahrens #include <sys/dmu.h> 37fa9e4066Sahrens #include <sys/zfs_vfsops.h> 38f18faf3fSek #include <sys/rrwlock.h> 39fa9e4066Sahrens #endif 40fa9e4066Sahrens #include <sys/zfs_acl.h> 41fa9e4066Sahrens #include <sys/zil.h> 42fa9e4066Sahrens 43fa9e4066Sahrens #ifdef __cplusplus 44fa9e4066Sahrens extern "C" { 45fa9e4066Sahrens #endif 46fa9e4066Sahrens 47da6c28aaSamw /* 48da6c28aaSamw * Additional file level attributes, that are stored 49da6c28aaSamw * in the upper half of zp_flags 50da6c28aaSamw */ 51da6c28aaSamw #define ZFS_READONLY 0x0000000100000000 52da6c28aaSamw #define ZFS_HIDDEN 0x0000000200000000 53da6c28aaSamw #define ZFS_SYSTEM 0x0000000400000000 54da6c28aaSamw #define ZFS_ARCHIVE 0x0000000800000000 55da6c28aaSamw #define ZFS_IMMUTABLE 0x0000001000000000 56da6c28aaSamw #define ZFS_NOUNLINK 0x0000002000000000 57da6c28aaSamw #define ZFS_APPENDONLY 0x0000004000000000 58da6c28aaSamw #define ZFS_NODUMP 0x0000008000000000 59da6c28aaSamw #define ZFS_OPAQUE 0x0000010000000000 60da6c28aaSamw #define ZFS_AV_QUARANTINED 0x0000020000000000 61da6c28aaSamw #define ZFS_AV_MODIFIED 0x0000040000000000 62da6c28aaSamw 63da6c28aaSamw #define ZFS_ATTR_SET(zp, attr, value) \ 64da6c28aaSamw { \ 65da6c28aaSamw if (value) \ 66da6c28aaSamw zp->z_phys->zp_flags |= attr; \ 67da6c28aaSamw else \ 68da6c28aaSamw zp->z_phys->zp_flags &= ~attr; \ 69da6c28aaSamw } 70da6c28aaSamw 71fa9e4066Sahrens /* 72fa9e4066Sahrens * Define special zfs pflags 73fa9e4066Sahrens */ 74da6c28aaSamw #define ZFS_XATTR 0x1 /* is an extended attribute */ 75da6c28aaSamw #define ZFS_INHERIT_ACE 0x2 /* ace has inheritable ACEs */ 76da6c28aaSamw #define ZFS_ACL_TRIVIAL 0x4 /* files ACL is trivial */ 77da6c28aaSamw #define ZFS_ACL_OBJ_ACE 0x8 /* ACL has CMPLX Object ACE */ 78da6c28aaSamw #define ZFS_ACL_PROTECTED 0x10 /* ACL protected */ 79da6c28aaSamw #define ZFS_ACL_DEFAULTED 0x20 /* ACL should be defaulted */ 80da6c28aaSamw #define ZFS_ACL_AUTO_INHERIT 0x40 /* ACL should be inherited */ 81da6c28aaSamw #define ZFS_BONUS_SCANSTAMP 0x80 /* Scanstamp in bonus area */ 82da6c28aaSamw 83da6c28aaSamw /* 84da6c28aaSamw * Is ID ephemeral? 85da6c28aaSamw */ 86da6c28aaSamw #define IS_EPHEMERAL(x) (x > MAXUID) 87da6c28aaSamw 88da6c28aaSamw /* 89da6c28aaSamw * Should we use FUIDs? 90da6c28aaSamw */ 91da6c28aaSamw #define USE_FUIDS(version, os) (version >= ZPL_VERSION_FUID &&\ 92da6c28aaSamw spa_version(dmu_objset_spa(os)) >= SPA_VERSION_FUID) 93fa9e4066Sahrens 94fa9e4066Sahrens #define MASTER_NODE_OBJ 1 95fa9e4066Sahrens 96fa9e4066Sahrens /* 97da6c28aaSamw * Special attributes for master node. 98fa9e4066Sahrens */ 99fa9e4066Sahrens #define ZFS_FSID "FSID" 100893a6d32Sahrens #define ZFS_UNLINKED_SET "DELETE_QUEUE" 101fa9e4066Sahrens #define ZFS_ROOT_OBJ "ROOT" 102e7437265Sahrens #define ZPL_VERSION_STR "VERSION" 103da6c28aaSamw #define ZFS_FUID_TABLES "FUID" 104fa9e4066Sahrens 105fa9e4066Sahrens #define ZFS_MAX_BLOCKSIZE (SPA_MAXBLOCKSIZE) 106fa9e4066Sahrens 107fa9e4066Sahrens /* Path component length */ 108fa9e4066Sahrens /* 109fa9e4066Sahrens * The generic fs code uses MAXNAMELEN to represent 110fa9e4066Sahrens * what the largest component length is. Unfortunately, 111fa9e4066Sahrens * this length includes the terminating NULL. ZFS needs 112fa9e4066Sahrens * to tell the users via pathconf() and statvfs() what the 113fa9e4066Sahrens * true maximum length of a component is, excluding the NULL. 114fa9e4066Sahrens */ 115fa9e4066Sahrens #define ZFS_MAXNAMELEN (MAXNAMELEN - 1) 116fa9e4066Sahrens 117e7437265Sahrens /* 118e7437265Sahrens * Convert mode bits (zp_mode) to BSD-style DT_* values for storing in 119e7437265Sahrens * the directory entries. 120e7437265Sahrens */ 121e7437265Sahrens #define IFTODT(mode) (((mode) & S_IFMT) >> 12) 122e7437265Sahrens 123b1b8ab34Slling /* 124b1b8ab34Slling * The directory entry has the type (currently unused on Solaris) in the 125b1b8ab34Slling * top 4 bits, and the object number in the low 48 bits. The "middle" 126b1b8ab34Slling * 12 bits are unused. 127b1b8ab34Slling */ 128b1b8ab34Slling #define ZFS_DIRENT_TYPE(de) BF64_GET(de, 60, 4) 129b1b8ab34Slling #define ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48) 130b1b8ab34Slling 131fa9e4066Sahrens /* 132fa9e4066Sahrens * This is the persistent portion of the znode. It is stored 133fa9e4066Sahrens * in the "bonus buffer" of the file. Short symbolic links 134fa9e4066Sahrens * are also stored in the bonus buffer. 135fa9e4066Sahrens */ 136fa9e4066Sahrens typedef struct znode_phys { 137fa9e4066Sahrens uint64_t zp_atime[2]; /* 0 - last file access time */ 138fa9e4066Sahrens uint64_t zp_mtime[2]; /* 16 - last file modification time */ 139fa9e4066Sahrens uint64_t zp_ctime[2]; /* 32 - last file change time */ 140fa9e4066Sahrens uint64_t zp_crtime[2]; /* 48 - creation time */ 141fa9e4066Sahrens uint64_t zp_gen; /* 64 - generation (txg of creation) */ 142fa9e4066Sahrens uint64_t zp_mode; /* 72 - file mode bits */ 143fa9e4066Sahrens uint64_t zp_size; /* 80 - size of file */ 144fa9e4066Sahrens uint64_t zp_parent; /* 88 - directory parent (`..') */ 145fa9e4066Sahrens uint64_t zp_links; /* 96 - number of links to file */ 146fa9e4066Sahrens uint64_t zp_xattr; /* 104 - DMU object for xattrs */ 147fa9e4066Sahrens uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */ 148fa9e4066Sahrens uint64_t zp_flags; /* 120 - persistent flags */ 149fa9e4066Sahrens uint64_t zp_uid; /* 128 - file owner */ 150fa9e4066Sahrens uint64_t zp_gid; /* 136 - owning group */ 151da6c28aaSamw uint64_t zp_zap; /* 144 - extra attributes */ 152da6c28aaSamw uint64_t zp_pad[3]; /* 152 - future */ 153da6c28aaSamw zfs_acl_phys_t zp_acl; /* 176 - 263 ACL */ 154fa9e4066Sahrens /* 155fa9e4066Sahrens * Data may pad out any remaining bytes in the znode buffer, eg: 156fa9e4066Sahrens * 157fa9e4066Sahrens * |<---------------------- dnode_phys (512) ------------------------>| 158fa9e4066Sahrens * |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->| 159fa9e4066Sahrens * |<---- znode (264) ---->|<---- data (56) ---->| 160fa9e4066Sahrens * 161da6c28aaSamw * At present, we use this space for the following: 162da6c28aaSamw * - symbolic links 163da6c28aaSamw * - 32-byte anti-virus scanstamp (regular files only) 164fa9e4066Sahrens */ 165fa9e4066Sahrens } znode_phys_t; 166fa9e4066Sahrens 167fa9e4066Sahrens /* 168fa9e4066Sahrens * Directory entry locks control access to directory entries. 169fa9e4066Sahrens * They are used to protect creates, deletes, and renames. 170fa9e4066Sahrens * Each directory znode has a mutex and a list of locked names. 171fa9e4066Sahrens */ 172fa9e4066Sahrens #ifdef _KERNEL 173fa9e4066Sahrens typedef struct zfs_dirlock { 174fa9e4066Sahrens char *dl_name; /* directory entry being locked */ 175fa9e4066Sahrens uint32_t dl_sharecnt; /* 0 if exclusive, > 0 if shared */ 176fa9e4066Sahrens uint16_t dl_namesize; /* set if dl_name was allocated */ 177fa9e4066Sahrens kcondvar_t dl_cv; /* wait for entry to be unlocked */ 178fa9e4066Sahrens struct znode *dl_dzp; /* directory znode */ 179fa9e4066Sahrens struct zfs_dirlock *dl_next; /* next in z_dirlocks list */ 180fa9e4066Sahrens } zfs_dirlock_t; 181fa9e4066Sahrens 182fa9e4066Sahrens typedef struct znode { 183fa9e4066Sahrens struct zfsvfs *z_zfsvfs; 184fa9e4066Sahrens vnode_t *z_vnode; 185fa9e4066Sahrens uint64_t z_id; /* object ID for this znode */ 186fa9e4066Sahrens kmutex_t z_lock; /* znode modification lock */ 187fa9e4066Sahrens krwlock_t z_map_lock; /* page map lock */ 188104e2ed7Sperrin krwlock_t z_parent_lock; /* parent lock for directories */ 189af2c4821Smaybee krwlock_t z_name_lock; /* "master" lock for dirent locks */ 190fa9e4066Sahrens zfs_dirlock_t *z_dirlocks; /* directory entry lock list */ 191104e2ed7Sperrin kmutex_t z_range_lock; /* protects changes to z_range_avl */ 192104e2ed7Sperrin avl_tree_t z_range_avl; /* avl tree of file range locks */ 193893a6d32Sahrens uint8_t z_unlinked; /* file has been unlinked */ 194fa9e4066Sahrens uint8_t z_atime_dirty; /* atime needs to be synced */ 1957f6e3e7dSperrin uint8_t z_zn_prefetch; /* Prefetch znodes? */ 196fa9e4066Sahrens uint_t z_blksz; /* block size in bytes */ 197fa9e4066Sahrens uint_t z_seq; /* modification sequence number */ 198ea8dc4b6Seschrock uint64_t z_mapcnt; /* number of pages mapped to file */ 199fa9e4066Sahrens uint64_t z_last_itx; /* last ZIL itx on this znode */ 200f18faf3fSek uint64_t z_gen; /* generation (same as zp_gen) */ 20167bd71c6Sperrin uint32_t z_sync_cnt; /* synchronous open count */ 202fa9e4066Sahrens kmutex_t z_acl_lock; /* acl data lock */ 203fa9e4066Sahrens list_node_t z_link_node; /* all znodes in fs link */ 204fa9e4066Sahrens /* 205fa9e4066Sahrens * These are dmu managed fields. 206fa9e4066Sahrens */ 207fa9e4066Sahrens znode_phys_t *z_phys; /* pointer to persistent znode */ 208fa9e4066Sahrens dmu_buf_t *z_dbuf; /* buffer containing the z_phys */ 209fa9e4066Sahrens } znode_t; 210fa9e4066Sahrens 211104e2ed7Sperrin 212fa9e4066Sahrens /* 213104e2ed7Sperrin * Range locking rules 214104e2ed7Sperrin * -------------------- 215104e2ed7Sperrin * 1. When truncating a file (zfs_create, zfs_setattr, zfs_space) the whole 216104e2ed7Sperrin * file range needs to be locked as RL_WRITER. Only then can the pages be 217104e2ed7Sperrin * freed etc and zp_size reset. zp_size must be set within range lock. 218104e2ed7Sperrin * 2. For writes and punching holes (zfs_write & zfs_space) just the range 219104e2ed7Sperrin * being written or freed needs to be locked as RL_WRITER. 220104e2ed7Sperrin * Multiple writes at the end of the file must coordinate zp_size updates 221104e2ed7Sperrin * to ensure data isn't lost. A compare and swap loop is currently used 222104e2ed7Sperrin * to ensure the file size is at least the offset last written. 223104e2ed7Sperrin * 3. For reads (zfs_read, zfs_get_data & zfs_putapage) just the range being 224104e2ed7Sperrin * read needs to be locked as RL_READER. A check against zp_size can then 225104e2ed7Sperrin * be made for reading beyond end of file. 226fa9e4066Sahrens */ 227fa9e4066Sahrens 228fa9e4066Sahrens /* 229fa9e4066Sahrens * Convert between znode pointers and vnode pointers 230fa9e4066Sahrens */ 231fa9e4066Sahrens #define ZTOV(ZP) ((ZP)->z_vnode) 232fa9e4066Sahrens #define VTOZ(VP) ((znode_t *)(VP)->v_data) 233fa9e4066Sahrens 234fa9e4066Sahrens /* 235fa9e4066Sahrens * ZFS_ENTER() is called on entry to each ZFS vnode and vfs operation. 236fa9e4066Sahrens * ZFS_EXIT() must be called before exitting the vop. 2373cb34c60Sahrens * ZFS_VERIFY_ZP() verifies the znode is valid. 238fa9e4066Sahrens */ 239fa9e4066Sahrens #define ZFS_ENTER(zfsvfs) \ 240fa9e4066Sahrens { \ 241f18faf3fSek rrw_enter(&(zfsvfs)->z_teardown_lock, RW_READER, FTAG); \ 24291ebeef5Sahrens if ((zfsvfs)->z_unmounted) { \ 243fa9e4066Sahrens ZFS_EXIT(zfsvfs); \ 244fa9e4066Sahrens return (EIO); \ 245fa9e4066Sahrens } \ 246fa9e4066Sahrens } 24791ebeef5Sahrens 248f18faf3fSek #define ZFS_EXIT(zfsvfs) rrw_exit(&(zfsvfs)->z_teardown_lock, FTAG) 249f18faf3fSek 2503cb34c60Sahrens #define ZFS_VERIFY_ZP(zp) \ 2514ccbb6e7Sahrens if ((zp)->z_dbuf == NULL) { \ 2523cb34c60Sahrens ZFS_EXIT((zp)->z_zfsvfs); \ 2533cb34c60Sahrens return (EIO); \ 2543cb34c60Sahrens } \ 255fa9e4066Sahrens 256fa9e4066Sahrens /* 257fa9e4066Sahrens * Macros for dealing with dmu_buf_hold 258fa9e4066Sahrens */ 2594ccbb6e7Sahrens #define ZFS_OBJ_HASH(obj_num) ((obj_num) & (ZFS_OBJ_MTX_SZ - 1)) 260*b5fca8f8Stomee #define ZFS_OBJ_MUTEX(zfsvfs, obj_num) \ 261*b5fca8f8Stomee (&(zfsvfs)->z_hold_mtx[ZFS_OBJ_HASH(obj_num)]) 262fa9e4066Sahrens #define ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num) \ 263*b5fca8f8Stomee mutex_enter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num))) 264fa9e4066Sahrens #define ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num) \ 265*b5fca8f8Stomee mutex_exit(ZFS_OBJ_MUTEX((zfsvfs), (obj_num))) 266fa9e4066Sahrens 267fa9e4066Sahrens /* 268fa9e4066Sahrens * Macros to encode/decode ZFS stored time values from/to struct timespec 269fa9e4066Sahrens */ 270fa9e4066Sahrens #define ZFS_TIME_ENCODE(tp, stmp) \ 271fa9e4066Sahrens { \ 272*b5fca8f8Stomee (stmp)[0] = (uint64_t)(tp)->tv_sec; \ 2734ccbb6e7Sahrens (stmp)[1] = (uint64_t)(tp)->tv_nsec; \ 274fa9e4066Sahrens } 275fa9e4066Sahrens 276fa9e4066Sahrens #define ZFS_TIME_DECODE(tp, stmp) \ 277fa9e4066Sahrens { \ 2784ccbb6e7Sahrens (tp)->tv_sec = (time_t)(stmp)[0]; \ 2794ccbb6e7Sahrens (tp)->tv_nsec = (long)(stmp)[1]; \ 280fa9e4066Sahrens } 281fa9e4066Sahrens 282fa9e4066Sahrens /* 283fa9e4066Sahrens * Timestamp defines 284fa9e4066Sahrens */ 285fa9e4066Sahrens #define ACCESSED (AT_ATIME) 286fa9e4066Sahrens #define STATE_CHANGED (AT_CTIME) 287fa9e4066Sahrens #define CONTENT_MODIFIED (AT_MTIME | AT_CTIME) 288fa9e4066Sahrens 289fa9e4066Sahrens #define ZFS_ACCESSTIME_STAMP(zfsvfs, zp) \ 290fa9e4066Sahrens if ((zfsvfs)->z_atime && !((zfsvfs)->z_vfs->vfs_flag & VFS_RDONLY)) \ 291fa9e4066Sahrens zfs_time_stamper(zp, ACCESSED, NULL) 292fa9e4066Sahrens 293fa9e4066Sahrens extern int zfs_init_fs(zfsvfs_t *, znode_t **, cred_t *); 294fa9e4066Sahrens extern void zfs_set_dataprop(objset_t *); 295de8267e0Stimh extern void zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *, 296da6c28aaSamw dmu_tx_t *tx); 297fa9e4066Sahrens extern void zfs_time_stamper(znode_t *, uint_t, dmu_tx_t *); 298fa9e4066Sahrens extern void zfs_time_stamper_locked(znode_t *, uint_t, dmu_tx_t *); 299104e2ed7Sperrin extern void zfs_grow_blocksize(znode_t *, uint64_t, dmu_tx_t *); 3005730cc9aSmaybee extern int zfs_freesp(znode_t *, uint64_t, uint64_t, int, boolean_t); 301fa9e4066Sahrens extern void zfs_znode_init(void); 302fa9e4066Sahrens extern void zfs_znode_fini(void); 303fa9e4066Sahrens extern int zfs_zget(zfsvfs_t *, uint64_t, znode_t **); 304f18faf3fSek extern int zfs_rezget(znode_t *); 305fa9e4066Sahrens extern void zfs_zinactive(znode_t *); 306fa9e4066Sahrens extern void zfs_znode_delete(znode_t *, dmu_tx_t *); 307fa9e4066Sahrens extern void zfs_znode_free(znode_t *); 308fa9e4066Sahrens extern void zfs_remove_op_tables(); 309fa9e4066Sahrens extern int zfs_create_op_tables(); 310fa9e4066Sahrens extern int zfs_sync(vfs_t *vfsp, short flag, cred_t *cr); 31172fc53bcSmarks extern dev_t zfs_cmpldev(uint64_t); 312de8267e0Stimh extern int zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value); 313e7437265Sahrens extern int zfs_set_version(const char *name, uint64_t newvers); 314da6c28aaSamw extern int zfs_get_stats(objset_t *os, nvlist_t *nv); 315874395d5Smaybee extern void zfs_znode_dmu_fini(znode_t *); 316da6c28aaSamw 317da6c28aaSamw extern void zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 318da6c28aaSamw znode_t *dzp, znode_t *zp, char *name, vsecattr_t *, zfs_fuid_info_t *, 319da6c28aaSamw vattr_t *vap); 3204ccbb6e7Sahrens extern int zfs_log_create_txtype(zil_create_t, vsecattr_t *vsecp, 321da6c28aaSamw vattr_t *vap); 322da6c28aaSamw extern void zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 323fa9e4066Sahrens znode_t *dzp, char *name); 324da6c28aaSamw extern void zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 325fa9e4066Sahrens znode_t *dzp, znode_t *zp, char *name); 326da6c28aaSamw extern void zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 327fa9e4066Sahrens znode_t *dzp, znode_t *zp, char *name, char *link); 328da6c28aaSamw extern void zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 329fa9e4066Sahrens znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp); 330b19a79ecSperrin extern void zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 331feb08c6bSbillm znode_t *zp, offset_t off, ssize_t len, int ioflag); 332b19a79ecSperrin extern void zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 333fa9e4066Sahrens znode_t *zp, uint64_t off, uint64_t len); 334b19a79ecSperrin extern void zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 335da6c28aaSamw znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp); 336da6c28aaSamw extern void zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 337da6c28aaSamw vsecattr_t *vsecp, zfs_fuid_info_t *fuidp); 338da6c28aaSamw extern void zfs_xvattr_set(znode_t *zp, xvattr_t *xvap); 339da6c28aaSamw extern void zfs_upgrade(zfsvfs_t *zfsvfs, dmu_tx_t *tx); 340fa9e4066Sahrens 341fa9e4066Sahrens extern zil_get_data_t zfs_get_data; 342fa9e4066Sahrens extern zil_replay_func_t *zfs_replay_vector[TX_MAX_TYPE]; 343fa9e4066Sahrens extern int zfsfstype; 344fa9e4066Sahrens 345fa9e4066Sahrens #endif /* _KERNEL */ 346fa9e4066Sahrens 34755434c77Sek extern int zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len); 34855434c77Sek 349fa9e4066Sahrens #ifdef __cplusplus 350fa9e4066Sahrens } 351fa9e4066Sahrens #endif 352fa9e4066Sahrens 353fa9e4066Sahrens #endif /* _SYS_FS_ZFS_ZNODE_H */ 354