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 /* 22b5fca8f8Stomee * 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 #ifdef _KERNEL 30fa9e4066Sahrens #include <sys/isa_defs.h> 31fa9e4066Sahrens #include <sys/types32.h> 32da6c28aaSamw #include <sys/attr.h> 33fa9e4066Sahrens #include <sys/list.h> 34fa9e4066Sahrens #include <sys/dmu.h> 35fa9e4066Sahrens #include <sys/zfs_vfsops.h> 36f18faf3fSek #include <sys/rrwlock.h> 37fa9e4066Sahrens #endif 38fa9e4066Sahrens #include <sys/zfs_acl.h> 39fa9e4066Sahrens #include <sys/zil.h> 40fa9e4066Sahrens 41fa9e4066Sahrens #ifdef __cplusplus 42fa9e4066Sahrens extern "C" { 43fa9e4066Sahrens #endif 44fa9e4066Sahrens 45da6c28aaSamw /* 46da6c28aaSamw * Additional file level attributes, that are stored 47da6c28aaSamw * in the upper half of zp_flags 48da6c28aaSamw */ 49da6c28aaSamw #define ZFS_READONLY 0x0000000100000000 50da6c28aaSamw #define ZFS_HIDDEN 0x0000000200000000 51da6c28aaSamw #define ZFS_SYSTEM 0x0000000400000000 52da6c28aaSamw #define ZFS_ARCHIVE 0x0000000800000000 53da6c28aaSamw #define ZFS_IMMUTABLE 0x0000001000000000 54da6c28aaSamw #define ZFS_NOUNLINK 0x0000002000000000 55da6c28aaSamw #define ZFS_APPENDONLY 0x0000004000000000 56da6c28aaSamw #define ZFS_NODUMP 0x0000008000000000 57da6c28aaSamw #define ZFS_OPAQUE 0x0000010000000000 58da6c28aaSamw #define ZFS_AV_QUARANTINED 0x0000020000000000 59da6c28aaSamw #define ZFS_AV_MODIFIED 0x0000040000000000 60da6c28aaSamw 61da6c28aaSamw #define ZFS_ATTR_SET(zp, attr, value) \ 62da6c28aaSamw { \ 63da6c28aaSamw if (value) \ 64da6c28aaSamw zp->z_phys->zp_flags |= attr; \ 65da6c28aaSamw else \ 66da6c28aaSamw zp->z_phys->zp_flags &= ~attr; \ 67da6c28aaSamw } 68da6c28aaSamw 69fa9e4066Sahrens /* 70fa9e4066Sahrens * Define special zfs pflags 71fa9e4066Sahrens */ 72da6c28aaSamw #define ZFS_XATTR 0x1 /* is an extended attribute */ 73da6c28aaSamw #define ZFS_INHERIT_ACE 0x2 /* ace has inheritable ACEs */ 74da6c28aaSamw #define ZFS_ACL_TRIVIAL 0x4 /* files ACL is trivial */ 75da6c28aaSamw #define ZFS_ACL_OBJ_ACE 0x8 /* ACL has CMPLX Object ACE */ 76da6c28aaSamw #define ZFS_ACL_PROTECTED 0x10 /* ACL protected */ 77da6c28aaSamw #define ZFS_ACL_DEFAULTED 0x20 /* ACL should be defaulted */ 78da6c28aaSamw #define ZFS_ACL_AUTO_INHERIT 0x40 /* ACL should be inherited */ 79da6c28aaSamw #define ZFS_BONUS_SCANSTAMP 0x80 /* Scanstamp in bonus area */ 80da6c28aaSamw 81da6c28aaSamw /* 82da6c28aaSamw * Is ID ephemeral? 83da6c28aaSamw */ 84da6c28aaSamw #define IS_EPHEMERAL(x) (x > MAXUID) 85da6c28aaSamw 86da6c28aaSamw /* 87da6c28aaSamw * Should we use FUIDs? 88da6c28aaSamw */ 89da6c28aaSamw #define USE_FUIDS(version, os) (version >= ZPL_VERSION_FUID &&\ 90da6c28aaSamw spa_version(dmu_objset_spa(os)) >= SPA_VERSION_FUID) 91fa9e4066Sahrens 92fa9e4066Sahrens #define MASTER_NODE_OBJ 1 93fa9e4066Sahrens 94fa9e4066Sahrens /* 95da6c28aaSamw * Special attributes for master node. 96fa9e4066Sahrens */ 97fa9e4066Sahrens #define ZFS_FSID "FSID" 98893a6d32Sahrens #define ZFS_UNLINKED_SET "DELETE_QUEUE" 99fa9e4066Sahrens #define ZFS_ROOT_OBJ "ROOT" 100e7437265Sahrens #define ZPL_VERSION_STR "VERSION" 101da6c28aaSamw #define ZFS_FUID_TABLES "FUID" 102fa9e4066Sahrens 103fa9e4066Sahrens #define ZFS_MAX_BLOCKSIZE (SPA_MAXBLOCKSIZE) 104fa9e4066Sahrens 105fa9e4066Sahrens /* Path component length */ 106fa9e4066Sahrens /* 107fa9e4066Sahrens * The generic fs code uses MAXNAMELEN to represent 108fa9e4066Sahrens * what the largest component length is. Unfortunately, 109fa9e4066Sahrens * this length includes the terminating NULL. ZFS needs 110fa9e4066Sahrens * to tell the users via pathconf() and statvfs() what the 111fa9e4066Sahrens * true maximum length of a component is, excluding the NULL. 112fa9e4066Sahrens */ 113fa9e4066Sahrens #define ZFS_MAXNAMELEN (MAXNAMELEN - 1) 114fa9e4066Sahrens 115e7437265Sahrens /* 116e7437265Sahrens * Convert mode bits (zp_mode) to BSD-style DT_* values for storing in 117e7437265Sahrens * the directory entries. 118e7437265Sahrens */ 119e7437265Sahrens #define IFTODT(mode) (((mode) & S_IFMT) >> 12) 120e7437265Sahrens 121b1b8ab34Slling /* 122b1b8ab34Slling * The directory entry has the type (currently unused on Solaris) in the 123b1b8ab34Slling * top 4 bits, and the object number in the low 48 bits. The "middle" 124b1b8ab34Slling * 12 bits are unused. 125b1b8ab34Slling */ 126b1b8ab34Slling #define ZFS_DIRENT_TYPE(de) BF64_GET(de, 60, 4) 127b1b8ab34Slling #define ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48) 128b1b8ab34Slling 129fa9e4066Sahrens /* 130fa9e4066Sahrens * This is the persistent portion of the znode. It is stored 131fa9e4066Sahrens * in the "bonus buffer" of the file. Short symbolic links 132fa9e4066Sahrens * are also stored in the bonus buffer. 133fa9e4066Sahrens */ 134fa9e4066Sahrens typedef struct znode_phys { 135fa9e4066Sahrens uint64_t zp_atime[2]; /* 0 - last file access time */ 136fa9e4066Sahrens uint64_t zp_mtime[2]; /* 16 - last file modification time */ 137fa9e4066Sahrens uint64_t zp_ctime[2]; /* 32 - last file change time */ 138fa9e4066Sahrens uint64_t zp_crtime[2]; /* 48 - creation time */ 139fa9e4066Sahrens uint64_t zp_gen; /* 64 - generation (txg of creation) */ 140fa9e4066Sahrens uint64_t zp_mode; /* 72 - file mode bits */ 141fa9e4066Sahrens uint64_t zp_size; /* 80 - size of file */ 142fa9e4066Sahrens uint64_t zp_parent; /* 88 - directory parent (`..') */ 143fa9e4066Sahrens uint64_t zp_links; /* 96 - number of links to file */ 144fa9e4066Sahrens uint64_t zp_xattr; /* 104 - DMU object for xattrs */ 145fa9e4066Sahrens uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */ 146fa9e4066Sahrens uint64_t zp_flags; /* 120 - persistent flags */ 147fa9e4066Sahrens uint64_t zp_uid; /* 128 - file owner */ 148fa9e4066Sahrens uint64_t zp_gid; /* 136 - owning group */ 149da6c28aaSamw uint64_t zp_zap; /* 144 - extra attributes */ 150da6c28aaSamw uint64_t zp_pad[3]; /* 152 - future */ 151da6c28aaSamw zfs_acl_phys_t zp_acl; /* 176 - 263 ACL */ 152fa9e4066Sahrens /* 153fa9e4066Sahrens * Data may pad out any remaining bytes in the znode buffer, eg: 154fa9e4066Sahrens * 155fa9e4066Sahrens * |<---------------------- dnode_phys (512) ------------------------>| 156fa9e4066Sahrens * |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->| 157fa9e4066Sahrens * |<---- znode (264) ---->|<---- data (56) ---->| 158fa9e4066Sahrens * 159da6c28aaSamw * At present, we use this space for the following: 160da6c28aaSamw * - symbolic links 161da6c28aaSamw * - 32-byte anti-virus scanstamp (regular files only) 162fa9e4066Sahrens */ 163fa9e4066Sahrens } znode_phys_t; 164fa9e4066Sahrens 165fa9e4066Sahrens /* 166fa9e4066Sahrens * Directory entry locks control access to directory entries. 167fa9e4066Sahrens * They are used to protect creates, deletes, and renames. 168fa9e4066Sahrens * Each directory znode has a mutex and a list of locked names. 169fa9e4066Sahrens */ 170fa9e4066Sahrens #ifdef _KERNEL 171fa9e4066Sahrens typedef struct zfs_dirlock { 172fa9e4066Sahrens char *dl_name; /* directory entry being locked */ 173fa9e4066Sahrens uint32_t dl_sharecnt; /* 0 if exclusive, > 0 if shared */ 174fa9e4066Sahrens uint16_t dl_namesize; /* set if dl_name was allocated */ 175fa9e4066Sahrens kcondvar_t dl_cv; /* wait for entry to be unlocked */ 176fa9e4066Sahrens struct znode *dl_dzp; /* directory znode */ 177fa9e4066Sahrens struct zfs_dirlock *dl_next; /* next in z_dirlocks list */ 178fa9e4066Sahrens } zfs_dirlock_t; 179fa9e4066Sahrens 180fa9e4066Sahrens typedef struct znode { 181fa9e4066Sahrens struct zfsvfs *z_zfsvfs; 182fa9e4066Sahrens vnode_t *z_vnode; 183fa9e4066Sahrens uint64_t z_id; /* object ID for this znode */ 184fa9e4066Sahrens kmutex_t z_lock; /* znode modification lock */ 185fa9e4066Sahrens krwlock_t z_map_lock; /* page map lock */ 186104e2ed7Sperrin krwlock_t z_parent_lock; /* parent lock for directories */ 187af2c4821Smaybee krwlock_t z_name_lock; /* "master" lock for dirent locks */ 188fa9e4066Sahrens zfs_dirlock_t *z_dirlocks; /* directory entry lock list */ 189104e2ed7Sperrin kmutex_t z_range_lock; /* protects changes to z_range_avl */ 190104e2ed7Sperrin avl_tree_t z_range_avl; /* avl tree of file range locks */ 191893a6d32Sahrens uint8_t z_unlinked; /* file has been unlinked */ 192fa9e4066Sahrens uint8_t z_atime_dirty; /* atime needs to be synced */ 1937f6e3e7dSperrin uint8_t z_zn_prefetch; /* Prefetch znodes? */ 194fa9e4066Sahrens uint_t z_blksz; /* block size in bytes */ 195fa9e4066Sahrens uint_t z_seq; /* modification sequence number */ 196ea8dc4b6Seschrock uint64_t z_mapcnt; /* number of pages mapped to file */ 197fa9e4066Sahrens uint64_t z_last_itx; /* last ZIL itx on this znode */ 198f18faf3fSek uint64_t z_gen; /* generation (same as zp_gen) */ 19967bd71c6Sperrin uint32_t z_sync_cnt; /* synchronous open count */ 200fa9e4066Sahrens kmutex_t z_acl_lock; /* acl data lock */ 201fa9e4066Sahrens list_node_t z_link_node; /* all znodes in fs link */ 202fa9e4066Sahrens /* 203fa9e4066Sahrens * These are dmu managed fields. 204fa9e4066Sahrens */ 205fa9e4066Sahrens znode_phys_t *z_phys; /* pointer to persistent znode */ 206fa9e4066Sahrens dmu_buf_t *z_dbuf; /* buffer containing the z_phys */ 207fa9e4066Sahrens } znode_t; 208fa9e4066Sahrens 209104e2ed7Sperrin 210fa9e4066Sahrens /* 211104e2ed7Sperrin * Range locking rules 212104e2ed7Sperrin * -------------------- 213104e2ed7Sperrin * 1. When truncating a file (zfs_create, zfs_setattr, zfs_space) the whole 214104e2ed7Sperrin * file range needs to be locked as RL_WRITER. Only then can the pages be 215104e2ed7Sperrin * freed etc and zp_size reset. zp_size must be set within range lock. 216104e2ed7Sperrin * 2. For writes and punching holes (zfs_write & zfs_space) just the range 217104e2ed7Sperrin * being written or freed needs to be locked as RL_WRITER. 218104e2ed7Sperrin * Multiple writes at the end of the file must coordinate zp_size updates 219104e2ed7Sperrin * to ensure data isn't lost. A compare and swap loop is currently used 220104e2ed7Sperrin * to ensure the file size is at least the offset last written. 221104e2ed7Sperrin * 3. For reads (zfs_read, zfs_get_data & zfs_putapage) just the range being 222104e2ed7Sperrin * read needs to be locked as RL_READER. A check against zp_size can then 223104e2ed7Sperrin * be made for reading beyond end of file. 224fa9e4066Sahrens */ 225fa9e4066Sahrens 226fa9e4066Sahrens /* 227fa9e4066Sahrens * Convert between znode pointers and vnode pointers 228fa9e4066Sahrens */ 229fa9e4066Sahrens #define ZTOV(ZP) ((ZP)->z_vnode) 230fa9e4066Sahrens #define VTOZ(VP) ((znode_t *)(VP)->v_data) 231fa9e4066Sahrens 232fa9e4066Sahrens /* 233fa9e4066Sahrens * ZFS_ENTER() is called on entry to each ZFS vnode and vfs operation. 234fa9e4066Sahrens * ZFS_EXIT() must be called before exitting the vop. 2353cb34c60Sahrens * ZFS_VERIFY_ZP() verifies the znode is valid. 236fa9e4066Sahrens */ 237fa9e4066Sahrens #define ZFS_ENTER(zfsvfs) \ 238fa9e4066Sahrens { \ 239f18faf3fSek rrw_enter(&(zfsvfs)->z_teardown_lock, RW_READER, FTAG); \ 24091ebeef5Sahrens if ((zfsvfs)->z_unmounted) { \ 241fa9e4066Sahrens ZFS_EXIT(zfsvfs); \ 242fa9e4066Sahrens return (EIO); \ 243fa9e4066Sahrens } \ 244fa9e4066Sahrens } 24591ebeef5Sahrens 246f18faf3fSek #define ZFS_EXIT(zfsvfs) rrw_exit(&(zfsvfs)->z_teardown_lock, FTAG) 247f18faf3fSek 2483cb34c60Sahrens #define ZFS_VERIFY_ZP(zp) \ 2494ccbb6e7Sahrens if ((zp)->z_dbuf == NULL) { \ 2503cb34c60Sahrens ZFS_EXIT((zp)->z_zfsvfs); \ 2513cb34c60Sahrens return (EIO); \ 2523cb34c60Sahrens } \ 253fa9e4066Sahrens 254fa9e4066Sahrens /* 255fa9e4066Sahrens * Macros for dealing with dmu_buf_hold 256fa9e4066Sahrens */ 2574ccbb6e7Sahrens #define ZFS_OBJ_HASH(obj_num) ((obj_num) & (ZFS_OBJ_MTX_SZ - 1)) 258b5fca8f8Stomee #define ZFS_OBJ_MUTEX(zfsvfs, obj_num) \ 259b5fca8f8Stomee (&(zfsvfs)->z_hold_mtx[ZFS_OBJ_HASH(obj_num)]) 260fa9e4066Sahrens #define ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num) \ 261b5fca8f8Stomee mutex_enter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num))) 262fa9e4066Sahrens #define ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num) \ 263b5fca8f8Stomee mutex_exit(ZFS_OBJ_MUTEX((zfsvfs), (obj_num))) 264fa9e4066Sahrens 265fa9e4066Sahrens /* 266fa9e4066Sahrens * Macros to encode/decode ZFS stored time values from/to struct timespec 267fa9e4066Sahrens */ 268fa9e4066Sahrens #define ZFS_TIME_ENCODE(tp, stmp) \ 269fa9e4066Sahrens { \ 270b5fca8f8Stomee (stmp)[0] = (uint64_t)(tp)->tv_sec; \ 2714ccbb6e7Sahrens (stmp)[1] = (uint64_t)(tp)->tv_nsec; \ 272fa9e4066Sahrens } 273fa9e4066Sahrens 274fa9e4066Sahrens #define ZFS_TIME_DECODE(tp, stmp) \ 275fa9e4066Sahrens { \ 2764ccbb6e7Sahrens (tp)->tv_sec = (time_t)(stmp)[0]; \ 2774ccbb6e7Sahrens (tp)->tv_nsec = (long)(stmp)[1]; \ 278fa9e4066Sahrens } 279fa9e4066Sahrens 280fa9e4066Sahrens /* 281fa9e4066Sahrens * Timestamp defines 282fa9e4066Sahrens */ 283fa9e4066Sahrens #define ACCESSED (AT_ATIME) 284fa9e4066Sahrens #define STATE_CHANGED (AT_CTIME) 285fa9e4066Sahrens #define CONTENT_MODIFIED (AT_MTIME | AT_CTIME) 286fa9e4066Sahrens 287fa9e4066Sahrens #define ZFS_ACCESSTIME_STAMP(zfsvfs, zp) \ 288fa9e4066Sahrens if ((zfsvfs)->z_atime && !((zfsvfs)->z_vfs->vfs_flag & VFS_RDONLY)) \ 289fa9e4066Sahrens zfs_time_stamper(zp, ACCESSED, NULL) 290fa9e4066Sahrens 291088f3894Sahrens extern int zfs_init_fs(zfsvfs_t *, znode_t **); 292fa9e4066Sahrens extern void zfs_set_dataprop(objset_t *); 293de8267e0Stimh extern void zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *, 294da6c28aaSamw dmu_tx_t *tx); 295fa9e4066Sahrens extern void zfs_time_stamper(znode_t *, uint_t, dmu_tx_t *); 296fa9e4066Sahrens extern void zfs_time_stamper_locked(znode_t *, uint_t, dmu_tx_t *); 297104e2ed7Sperrin extern void zfs_grow_blocksize(znode_t *, uint64_t, dmu_tx_t *); 2985730cc9aSmaybee extern int zfs_freesp(znode_t *, uint64_t, uint64_t, int, boolean_t); 299fa9e4066Sahrens extern void zfs_znode_init(void); 300fa9e4066Sahrens extern void zfs_znode_fini(void); 301fa9e4066Sahrens extern int zfs_zget(zfsvfs_t *, uint64_t, znode_t **); 302f18faf3fSek extern int zfs_rezget(znode_t *); 303fa9e4066Sahrens extern void zfs_zinactive(znode_t *); 304fa9e4066Sahrens extern void zfs_znode_delete(znode_t *, dmu_tx_t *); 305fa9e4066Sahrens extern void zfs_znode_free(znode_t *); 306fa9e4066Sahrens extern void zfs_remove_op_tables(); 307fa9e4066Sahrens extern int zfs_create_op_tables(); 308fa9e4066Sahrens extern int zfs_sync(vfs_t *vfsp, short flag, cred_t *cr); 30972fc53bcSmarks extern dev_t zfs_cmpldev(uint64_t); 310de8267e0Stimh extern int zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value); 311e7437265Sahrens extern int zfs_set_version(const char *name, uint64_t newvers); 312da6c28aaSamw extern int zfs_get_stats(objset_t *os, nvlist_t *nv); 313874395d5Smaybee extern void zfs_znode_dmu_fini(znode_t *); 314da6c28aaSamw 315da6c28aaSamw extern void zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 316da6c28aaSamw znode_t *dzp, znode_t *zp, char *name, vsecattr_t *, zfs_fuid_info_t *, 317da6c28aaSamw vattr_t *vap); 3184ccbb6e7Sahrens extern int zfs_log_create_txtype(zil_create_t, vsecattr_t *vsecp, 319da6c28aaSamw vattr_t *vap); 320da6c28aaSamw extern void zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 321fa9e4066Sahrens znode_t *dzp, char *name); 322da6c28aaSamw extern void zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 323fa9e4066Sahrens znode_t *dzp, znode_t *zp, char *name); 324da6c28aaSamw extern void zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 325fa9e4066Sahrens znode_t *dzp, znode_t *zp, char *name, char *link); 326da6c28aaSamw extern void zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, 327fa9e4066Sahrens znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp); 328b19a79ecSperrin extern void zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 329feb08c6bSbillm znode_t *zp, offset_t off, ssize_t len, int ioflag); 330b19a79ecSperrin extern void zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 331fa9e4066Sahrens znode_t *zp, uint64_t off, uint64_t len); 332b19a79ecSperrin extern void zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 333da6c28aaSamw znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp); 334da6c28aaSamw extern void zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 335da6c28aaSamw vsecattr_t *vsecp, zfs_fuid_info_t *fuidp); 336da6c28aaSamw extern void zfs_xvattr_set(znode_t *zp, xvattr_t *xvap); 337da6c28aaSamw extern void zfs_upgrade(zfsvfs_t *zfsvfs, dmu_tx_t *tx); 338fa9e4066Sahrens 339*0fab61baSJonathan W Adams extern caddr_t zfs_map_page(page_t *, enum seg_rw); 340*0fab61baSJonathan W Adams extern void zfs_unmap_page(page_t *, caddr_t); 341*0fab61baSJonathan W Adams 342fa9e4066Sahrens extern zil_get_data_t zfs_get_data; 343fa9e4066Sahrens extern zil_replay_func_t *zfs_replay_vector[TX_MAX_TYPE]; 344fa9e4066Sahrens extern int zfsfstype; 345fa9e4066Sahrens 346fa9e4066Sahrens #endif /* _KERNEL */ 347fa9e4066Sahrens 34855434c77Sek extern int zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len); 34955434c77Sek 350fa9e4066Sahrens #ifdef __cplusplus 351fa9e4066Sahrens } 352fa9e4066Sahrens #endif 353fa9e4066Sahrens 354fa9e4066Sahrens #endif /* _SYS_FS_ZFS_ZNODE_H */ 355