1168404Spjd/*
2168404Spjd * CDDL HEADER START
3168404Spjd *
4168404Spjd * The contents of this file are subject to the terms of the
5168404Spjd * Common Development and Distribution License (the "License").
6168404Spjd * You may not use this file except in compliance with the License.
7168404Spjd *
8168404Spjd * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9168404Spjd * or http://www.opensolaris.org/os/licensing.
10168404Spjd * See the License for the specific language governing permissions
11168404Spjd * and limitations under the License.
12168404Spjd *
13168404Spjd * When distributing Covered Code, include this CDDL HEADER in each
14168404Spjd * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15168404Spjd * If applicable, add the following below this CDDL HEADER, with the
16168404Spjd * fields enclosed by brackets "[]" replaced with your own identifying
17168404Spjd * information: Portions Copyright [yyyy] [name of copyright owner]
18168404Spjd *
19168404Spjd * CDDL HEADER END
20168404Spjd */
21168404Spjd/*
22219089Spjd * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23249643Smm * Copyright (c) 2012 by Delphix. All rights reserved.
24168404Spjd */
25168404Spjd
26168404Spjd#ifndef	_SYS_FS_ZFS_ZNODE_H
27168404Spjd#define	_SYS_FS_ZFS_ZNODE_H
28168404Spjd
29168404Spjd#ifdef _KERNEL
30168404Spjd#include <sys/list.h>
31168404Spjd#include <sys/dmu.h>
32219089Spjd#include <sys/sa.h>
33168404Spjd#include <sys/zfs_vfsops.h>
34185029Spjd#include <sys/rrwlock.h>
35219089Spjd#include <sys/zfs_sa.h>
36219089Spjd#include <sys/zfs_stat.h>
37168404Spjd#endif
38168404Spjd#include <sys/zfs_acl.h>
39168404Spjd#include <sys/zil.h>
40168404Spjd
41168404Spjd#ifdef	__cplusplus
42168404Spjdextern "C" {
43168404Spjd#endif
44168404Spjd
45168404Spjd/*
46185029Spjd * Additional file level attributes, that are stored
47185029Spjd * in the upper half of zp_flags
48185029Spjd */
49185029Spjd#define	ZFS_READONLY		0x0000000100000000
50185029Spjd#define	ZFS_HIDDEN		0x0000000200000000
51185029Spjd#define	ZFS_SYSTEM		0x0000000400000000
52185029Spjd#define	ZFS_ARCHIVE		0x0000000800000000
53185029Spjd#define	ZFS_IMMUTABLE		0x0000001000000000
54185029Spjd#define	ZFS_NOUNLINK		0x0000002000000000
55185029Spjd#define	ZFS_APPENDONLY		0x0000004000000000
56185029Spjd#define	ZFS_NODUMP		0x0000008000000000
57185029Spjd#define	ZFS_OPAQUE		0x0000010000000000
58185029Spjd#define	ZFS_AV_QUARANTINED 	0x0000020000000000
59185029Spjd#define	ZFS_AV_MODIFIED 	0x0000040000000000
60219089Spjd#define	ZFS_REPARSE		0x0000080000000000
61219089Spjd#define	ZFS_OFFLINE		0x0000100000000000
62219089Spjd#define	ZFS_SPARSE		0x0000200000000000
63185029Spjd
64219089Spjd#define	ZFS_ATTR_SET(zp, attr, value, pflags, tx) \
65185029Spjd{ \
66185029Spjd	if (value) \
67219089Spjd		pflags |= attr; \
68185029Spjd	else \
69219089Spjd		pflags &= ~attr; \
70219089Spjd	VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zp->z_zfsvfs), \
71219089Spjd	    &pflags, sizeof (pflags), tx)); \
72185029Spjd}
73185029Spjd
74185029Spjd/*
75168404Spjd * Define special zfs pflags
76168404Spjd */
77185029Spjd#define	ZFS_XATTR		0x1		/* is an extended attribute */
78185029Spjd#define	ZFS_INHERIT_ACE		0x2		/* ace has inheritable ACEs */
79185029Spjd#define	ZFS_ACL_TRIVIAL 	0x4		/* files ACL is trivial */
80185029Spjd#define	ZFS_ACL_OBJ_ACE 	0x8		/* ACL has CMPLX Object ACE */
81185029Spjd#define	ZFS_ACL_PROTECTED	0x10		/* ACL protected */
82185029Spjd#define	ZFS_ACL_DEFAULTED	0x20		/* ACL should be defaulted */
83185029Spjd#define	ZFS_ACL_AUTO_INHERIT	0x40		/* ACL should be inherited */
84185029Spjd#define	ZFS_BONUS_SCANSTAMP	0x80		/* Scanstamp in bonus area */
85211932Smm#define	ZFS_NO_EXECS_DENIED	0x100		/* exec was given to everyone */
86168404Spjd
87219089Spjd#define	SA_ZPL_ATIME(z)		z->z_attr_table[ZPL_ATIME]
88219089Spjd#define	SA_ZPL_MTIME(z)		z->z_attr_table[ZPL_MTIME]
89219089Spjd#define	SA_ZPL_CTIME(z)		z->z_attr_table[ZPL_CTIME]
90219089Spjd#define	SA_ZPL_CRTIME(z)	z->z_attr_table[ZPL_CRTIME]
91219089Spjd#define	SA_ZPL_GEN(z)		z->z_attr_table[ZPL_GEN]
92219089Spjd#define	SA_ZPL_DACL_ACES(z)	z->z_attr_table[ZPL_DACL_ACES]
93219089Spjd#define	SA_ZPL_XATTR(z)		z->z_attr_table[ZPL_XATTR]
94219089Spjd#define	SA_ZPL_SYMLINK(z)	z->z_attr_table[ZPL_SYMLINK]
95219089Spjd#define	SA_ZPL_RDEV(z)		z->z_attr_table[ZPL_RDEV]
96219089Spjd#define	SA_ZPL_SCANSTAMP(z)	z->z_attr_table[ZPL_SCANSTAMP]
97219089Spjd#define	SA_ZPL_UID(z)		z->z_attr_table[ZPL_UID]
98219089Spjd#define	SA_ZPL_GID(z)		z->z_attr_table[ZPL_GID]
99219089Spjd#define	SA_ZPL_PARENT(z)	z->z_attr_table[ZPL_PARENT]
100219089Spjd#define	SA_ZPL_LINKS(z)		z->z_attr_table[ZPL_LINKS]
101219089Spjd#define	SA_ZPL_MODE(z)		z->z_attr_table[ZPL_MODE]
102219089Spjd#define	SA_ZPL_DACL_COUNT(z)	z->z_attr_table[ZPL_DACL_COUNT]
103219089Spjd#define	SA_ZPL_FLAGS(z)		z->z_attr_table[ZPL_FLAGS]
104219089Spjd#define	SA_ZPL_SIZE(z)		z->z_attr_table[ZPL_SIZE]
105219089Spjd#define	SA_ZPL_ZNODE_ACL(z)	z->z_attr_table[ZPL_ZNODE_ACL]
106219089Spjd#define	SA_ZPL_PAD(z)		z->z_attr_table[ZPL_PAD]
107219089Spjd
108185029Spjd/*
109185029Spjd * Is ID ephemeral?
110185029Spjd */
111185029Spjd#define	IS_EPHEMERAL(x)		(x > MAXUID)
112185029Spjd
113185029Spjd/*
114185029Spjd * Should we use FUIDs?
115185029Spjd */
116219089Spjd#define	USE_FUIDS(version, os)	(version >= ZPL_VERSION_FUID && \
117185029Spjd    spa_version(dmu_objset_spa(os)) >= SPA_VERSION_FUID)
118219089Spjd#define	USE_SA(version, os) (version >= ZPL_VERSION_SA && \
119219089Spjd    spa_version(dmu_objset_spa(os)) >= SPA_VERSION_SA)
120185029Spjd
121168404Spjd#define	MASTER_NODE_OBJ	1
122168404Spjd
123168404Spjd/*
124185029Spjd * Special attributes for master node.
125219089Spjd * "userquota@" and "groupquota@" are also valid (from
126219089Spjd * zfs_userquota_prop_prefixes[]).
127168404Spjd */
128168404Spjd#define	ZFS_FSID		"FSID"
129168404Spjd#define	ZFS_UNLINKED_SET	"DELETE_QUEUE"
130168404Spjd#define	ZFS_ROOT_OBJ		"ROOT"
131185029Spjd#define	ZPL_VERSION_STR		"VERSION"
132185029Spjd#define	ZFS_FUID_TABLES		"FUID"
133209962Smm#define	ZFS_SHARES_DIR		"SHARES"
134219089Spjd#define	ZFS_SA_ATTRS		"SA_ATTRS"
135168404Spjd
136168404Spjd#define	ZFS_MAX_BLOCKSIZE	(SPA_MAXBLOCKSIZE)
137168404Spjd
138168404Spjd/*
139252751Sdelphij * Path component length
140252751Sdelphij *
141168404Spjd * The generic fs code uses MAXNAMELEN to represent
142168404Spjd * what the largest component length is.  Unfortunately,
143168404Spjd * this length includes the terminating NULL.  ZFS needs
144168404Spjd * to tell the users via pathconf() and statvfs() what the
145168404Spjd * true maximum length of a component is, excluding the NULL.
146168404Spjd */
147168404Spjd#define	ZFS_MAXNAMELEN	(MAXNAMELEN - 1)
148168404Spjd
149168404Spjd/*
150185029Spjd * Convert mode bits (zp_mode) to BSD-style DT_* values for storing in
151185029Spjd * the directory entries.
152185029Spjd */
153185029Spjd#ifndef IFTODT
154185029Spjd#define	IFTODT(mode) (((mode) & S_IFMT) >> 12)
155185029Spjd#endif
156185029Spjd
157185029Spjd/*
158168404Spjd * The directory entry has the type (currently unused on Solaris) in the
159168404Spjd * top 4 bits, and the object number in the low 48 bits.  The "middle"
160168404Spjd * 12 bits are unused.
161168404Spjd */
162168404Spjd#define	ZFS_DIRENT_TYPE(de) BF64_GET(de, 60, 4)
163168404Spjd#define	ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48)
164168404Spjd
165168404Spjd/*
166168404Spjd * Directory entry locks control access to directory entries.
167168404Spjd * They are used to protect creates, deletes, and renames.
168168404Spjd * Each directory znode has a mutex and a list of locked names.
169168404Spjd */
170168404Spjd#ifdef _KERNEL
171168404Spjdtypedef struct zfs_dirlock {
172168404Spjd	char		*dl_name;	/* directory entry being locked */
173168404Spjd	uint32_t	dl_sharecnt;	/* 0 if exclusive, > 0 if shared */
174208131Smm	uint8_t		dl_namelock;	/* 1 if z_name_lock is NOT held */
175168404Spjd	uint16_t	dl_namesize;	/* set if dl_name was allocated */
176168404Spjd	kcondvar_t	dl_cv;		/* wait for entry to be unlocked */
177168404Spjd	struct znode	*dl_dzp;	/* directory znode */
178168404Spjd	struct zfs_dirlock *dl_next;	/* next in z_dirlocks list */
179168404Spjd} zfs_dirlock_t;
180168404Spjd
181168404Spjdtypedef struct znode {
182168404Spjd	struct zfsvfs	*z_zfsvfs;
183168404Spjd	vnode_t		*z_vnode;
184168404Spjd	uint64_t	z_id;		/* object ID for this znode */
185168404Spjd	kmutex_t	z_lock;		/* znode modification lock */
186168404Spjd	krwlock_t	z_parent_lock;	/* parent lock for directories */
187168404Spjd	krwlock_t	z_name_lock;	/* "master" lock for dirent locks */
188168404Spjd	zfs_dirlock_t	*z_dirlocks;	/* directory entry lock list */
189168404Spjd	kmutex_t	z_range_lock;	/* protects changes to z_range_avl */
190168404Spjd	avl_tree_t	z_range_avl;	/* avl tree of file range locks */
191168404Spjd	uint8_t		z_unlinked;	/* file has been unlinked */
192168404Spjd	uint8_t		z_atime_dirty;	/* atime needs to be synced */
193168404Spjd	uint8_t		z_zn_prefetch;	/* Prefetch znodes? */
194219089Spjd	uint8_t		z_moved;	/* Has this znode been moved? */
195168404Spjd	uint_t		z_blksz;	/* block size in bytes */
196168404Spjd	uint_t		z_seq;		/* modification sequence number */
197168404Spjd	uint64_t	z_mapcnt;	/* number of pages mapped to file */
198219089Spjd	uint64_t	z_gen;		/* generation (cached) */
199219089Spjd	uint64_t	z_size;		/* file size (cached) */
200219089Spjd	uint64_t	z_atime[2];	/* atime (cached) */
201219089Spjd	uint64_t	z_links;	/* file links (cached) */
202219089Spjd	uint64_t	z_pflags;	/* pflags (cached) */
203219089Spjd	uint64_t	z_uid;		/* uid fuid (cached) */
204219089Spjd	uint64_t	z_gid;		/* gid fuid (cached) */
205219089Spjd	mode_t		z_mode;		/* mode (cached) */
206168404Spjd	uint32_t	z_sync_cnt;	/* synchronous open count */
207168404Spjd	kmutex_t	z_acl_lock;	/* acl data lock */
208211932Smm	zfs_acl_t	*z_acl_cached;	/* cached acl */
209168404Spjd	list_node_t	z_link_node;	/* all znodes in fs link */
210219089Spjd	sa_handle_t	*z_sa_hdl;	/* handle to sa data */
211219089Spjd	boolean_t	z_is_sa;	/* are we native sa? */
212168404Spjd} znode_t;
213168404Spjd
214168404Spjd
215168404Spjd/*
216168404Spjd * Range locking rules
217168404Spjd * --------------------
218168404Spjd * 1. When truncating a file (zfs_create, zfs_setattr, zfs_space) the whole
219168404Spjd *    file range needs to be locked as RL_WRITER. Only then can the pages be
220168404Spjd *    freed etc and zp_size reset. zp_size must be set within range lock.
221168404Spjd * 2. For writes and punching holes (zfs_write & zfs_space) just the range
222168404Spjd *    being written or freed needs to be locked as RL_WRITER.
223168404Spjd *    Multiple writes at the end of the file must coordinate zp_size updates
224168404Spjd *    to ensure data isn't lost. A compare and swap loop is currently used
225168404Spjd *    to ensure the file size is at least the offset last written.
226168404Spjd * 3. For reads (zfs_read, zfs_get_data & zfs_putapage) just the range being
227168404Spjd *    read needs to be locked as RL_READER. A check against zp_size can then
228168404Spjd *    be made for reading beyond end of file.
229168404Spjd */
230168404Spjd
231168404Spjd/*
232168404Spjd * Convert between znode pointers and vnode pointers
233168404Spjd */
234197153Spjd#ifdef DEBUG
235197153Spjdstatic __inline vnode_t *
236197153SpjdZTOV(znode_t *zp)
237197153Spjd{
238197153Spjd	vnode_t *vp = zp->z_vnode;
239197153Spjd
240197153Spjd	ASSERT(vp == NULL || vp->v_data == NULL || vp->v_data == zp);
241197153Spjd	return (vp);
242197153Spjd}
243197153Spjdstatic __inline znode_t *
244197153SpjdVTOZ(vnode_t *vp)
245197153Spjd{
246197153Spjd	znode_t *zp = (znode_t *)vp->v_data;
247197153Spjd
248197153Spjd	ASSERT(zp == NULL || zp->z_vnode == NULL || zp->z_vnode == vp);
249197153Spjd	return (zp);
250197153Spjd}
251197153Spjd#else
252168404Spjd#define	ZTOV(ZP)	((ZP)->z_vnode)
253168404Spjd#define	VTOZ(VP)	((znode_t *)(VP)->v_data)
254197153Spjd#endif
255168404Spjd
256252751Sdelphij/* Called on entry to each ZFS vnode and vfs operation  */
257168404Spjd#define	ZFS_ENTER(zfsvfs) \
258168404Spjd	{ \
259249643Smm		rrw_enter_read(&(zfsvfs)->z_teardown_lock, FTAG); \
260185029Spjd		if ((zfsvfs)->z_unmounted) { \
261168404Spjd			ZFS_EXIT(zfsvfs); \
262168404Spjd			return (EIO); \
263168404Spjd		} \
264168404Spjd	}
265168404Spjd
266252751Sdelphij/* Called on entry to each ZFS vnode and vfs operation that can not return EIO */
267197459Spjd#define	ZFS_ENTER_NOERROR(zfsvfs) \
268197459Spjd	rrw_enter(&(zfsvfs)->z_teardown_lock, RW_READER, FTAG)
269197459Spjd
270252751Sdelphij/* Must be called before exiting the vop */
271185029Spjd#define	ZFS_EXIT(zfsvfs) rrw_exit(&(zfsvfs)->z_teardown_lock, FTAG)
272185029Spjd
273252751Sdelphij/* Verifies the znode is valid */
274185029Spjd#define	ZFS_VERIFY_ZP(zp) \
275219089Spjd	if ((zp)->z_sa_hdl == NULL) { \
276185029Spjd		ZFS_EXIT((zp)->z_zfsvfs); \
277185029Spjd		return (EIO); \
278185029Spjd	} \
279185029Spjd
280168404Spjd/*
281168404Spjd * Macros for dealing with dmu_buf_hold
282168404Spjd */
283185029Spjd#define	ZFS_OBJ_HASH(obj_num)	((obj_num) & (ZFS_OBJ_MTX_SZ - 1))
284185029Spjd#define	ZFS_OBJ_MUTEX(zfsvfs, obj_num)	\
285185029Spjd	(&(zfsvfs)->z_hold_mtx[ZFS_OBJ_HASH(obj_num)])
286168404Spjd#define	ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num) \
287185029Spjd	mutex_enter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
288185029Spjd#define	ZFS_OBJ_HOLD_TRYENTER(zfsvfs, obj_num) \
289185029Spjd	mutex_tryenter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
290168404Spjd#define	ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num) \
291185029Spjd	mutex_exit(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
292168404Spjd
293252751Sdelphij/* Encode ZFS stored time values from a struct timespec */
294168404Spjd#define	ZFS_TIME_ENCODE(tp, stmp)		\
295168404Spjd{						\
296185029Spjd	(stmp)[0] = (uint64_t)(tp)->tv_sec;	\
297185029Spjd	(stmp)[1] = (uint64_t)(tp)->tv_nsec;	\
298168404Spjd}
299168404Spjd
300252751Sdelphij/* Decode ZFS stored time values to a struct timespec */
301168404Spjd#define	ZFS_TIME_DECODE(tp, stmp)		\
302168404Spjd{						\
303185029Spjd	(tp)->tv_sec = (time_t)(stmp)[0];		\
304185029Spjd	(tp)->tv_nsec = (long)(stmp)[1];		\
305168404Spjd}
306168404Spjd
307168404Spjd/*
308168404Spjd * Timestamp defines
309168404Spjd */
310168404Spjd#define	ACCESSED		(AT_ATIME)
311168404Spjd#define	STATE_CHANGED		(AT_CTIME)
312168404Spjd#define	CONTENT_MODIFIED	(AT_MTIME | AT_CTIME)
313168404Spjd
314168404Spjd#define	ZFS_ACCESSTIME_STAMP(zfsvfs, zp) \
315168404Spjd	if ((zfsvfs)->z_atime && !((zfsvfs)->z_vfs->vfs_flag & VFS_RDONLY)) \
316219089Spjd		zfs_tstamp_update_setup(zp, ACCESSED, NULL, NULL, B_FALSE);
317168404Spjd
318185029Spjdextern int	zfs_init_fs(zfsvfs_t *, znode_t **);
319168404Spjdextern void	zfs_set_dataprop(objset_t *);
320185029Spjdextern void	zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *,
321185029Spjd    dmu_tx_t *tx);
322219089Spjdextern void	zfs_tstamp_update_setup(znode_t *, uint_t, uint64_t [2],
323219089Spjd    uint64_t [2], boolean_t);
324168404Spjdextern void	zfs_grow_blocksize(znode_t *, uint64_t, dmu_tx_t *);
325168404Spjdextern int	zfs_freesp(znode_t *, uint64_t, uint64_t, int, boolean_t);
326168404Spjdextern void	zfs_znode_init(void);
327168404Spjdextern void	zfs_znode_fini(void);
328168404Spjdextern int	zfs_zget(zfsvfs_t *, uint64_t, znode_t **);
329185029Spjdextern int	zfs_rezget(znode_t *);
330168404Spjdextern void	zfs_zinactive(znode_t *);
331168404Spjdextern void	zfs_znode_delete(znode_t *, dmu_tx_t *);
332168404Spjdextern void	zfs_znode_free(znode_t *);
333168404Spjdextern void	zfs_remove_op_tables();
334168404Spjdextern int	zfs_create_op_tables();
335168404Spjdextern dev_t	zfs_cmpldev(uint64_t);
336185029Spjdextern int	zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value);
337185029Spjdextern int	zfs_get_stats(objset_t *os, nvlist_t *nv);
338185029Spjdextern void	zfs_znode_dmu_fini(znode_t *);
339168404Spjd
340185029Spjdextern void zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
341185029Spjd    znode_t *dzp, znode_t *zp, char *name, vsecattr_t *, zfs_fuid_info_t *,
342185029Spjd    vattr_t *vap);
343185029Spjdextern int zfs_log_create_txtype(zil_create_t, vsecattr_t *vsecp,
344185029Spjd    vattr_t *vap);
345185029Spjdextern void zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
346219089Spjd    znode_t *dzp, char *name, uint64_t foid);
347219089Spjd#define	ZFS_NO_OBJECT	0	/* no object id */
348185029Spjdextern void zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
349168404Spjd    znode_t *dzp, znode_t *zp, char *name);
350185029Spjdextern void zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
351168404Spjd    znode_t *dzp, znode_t *zp, char *name, char *link);
352185029Spjdextern void zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
353168404Spjd    znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp);
354168404Spjdextern void zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
355168404Spjd    znode_t *zp, offset_t off, ssize_t len, int ioflag);
356168404Spjdextern void zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
357168404Spjd    znode_t *zp, uint64_t off, uint64_t len);
358168404Spjdextern void zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype,
359185029Spjd    znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp);
360168404Spjd#ifndef ZFS_NO_ACL
361185029Spjdextern void zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
362185029Spjd    vsecattr_t *vsecp, zfs_fuid_info_t *fuidp);
363168404Spjd#endif
364219089Spjdextern void zfs_xvattr_set(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx);
365185029Spjdextern void zfs_upgrade(zfsvfs_t *zfsvfs, dmu_tx_t *tx);
366209962Smmextern int zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx);
367168404Spjd
368168404Spjdextern zil_get_data_t zfs_get_data;
369168404Spjdextern zil_replay_func_t *zfs_replay_vector[TX_MAX_TYPE];
370168404Spjdextern int zfsfstype;
371168404Spjd
372168404Spjd#endif /* _KERNEL */
373168404Spjd
374168404Spjdextern int zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len);
375168404Spjd
376168404Spjd#ifdef	__cplusplus
377168404Spjd}
378168404Spjd#endif
379168404Spjd
380168404Spjd#endif	/* _SYS_FS_ZFS_ZNODE_H */
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