xref: /illumos-gate/usr/src/uts/common/fs/zfs/sys/dnode.h (revision bf16b11e8deb633dd6c4296d46e92399d1582df4)
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 /*
2228d97a71SMark Shellenbaum  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23*bf16b11eSMatthew Ahrens  * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
24fa9e4066Sahrens  */
25fa9e4066Sahrens 
26fa9e4066Sahrens #ifndef	_SYS_DNODE_H
27fa9e4066Sahrens #define	_SYS_DNODE_H
28fa9e4066Sahrens 
29fa9e4066Sahrens #include <sys/zfs_context.h>
30fa9e4066Sahrens #include <sys/avl.h>
31fa9e4066Sahrens #include <sys/spa.h>
32fa9e4066Sahrens #include <sys/txg.h>
33c717a561Smaybee #include <sys/zio.h>
34fa9e4066Sahrens #include <sys/refcount.h>
35fa9e4066Sahrens #include <sys/dmu_zfetch.h>
36744947dcSTom Erickson #include <sys/zrlock.h>
37fa9e4066Sahrens 
38fa9e4066Sahrens #ifdef	__cplusplus
39fa9e4066Sahrens extern "C" {
40fa9e4066Sahrens #endif
41fa9e4066Sahrens 
42fa9e4066Sahrens /*
43cdb0ab79Smaybee  * dnode_hold() flags.
44fa9e4066Sahrens  */
45fa9e4066Sahrens #define	DNODE_MUST_BE_ALLOCATED	1
46fa9e4066Sahrens #define	DNODE_MUST_BE_FREE	2
47fa9e4066Sahrens 
48cdb0ab79Smaybee /*
49cdb0ab79Smaybee  * dnode_next_offset() flags.
50cdb0ab79Smaybee  */
51cdb0ab79Smaybee #define	DNODE_FIND_HOLE		1
52cdb0ab79Smaybee #define	DNODE_FIND_BACKWARDS	2
53cdb0ab79Smaybee #define	DNODE_FIND_HAVELOCK	4
54cdb0ab79Smaybee 
55fa9e4066Sahrens /*
56fa9e4066Sahrens  * Fixed constants.
57fa9e4066Sahrens  */
58fa9e4066Sahrens #define	DNODE_SHIFT		9	/* 512 bytes */
59fa9e4066Sahrens #define	DN_MIN_INDBLKSHIFT	10	/* 1k */
60fa9e4066Sahrens #define	DN_MAX_INDBLKSHIFT	14	/* 16k */
61fa9e4066Sahrens #define	DNODE_BLOCK_SHIFT	14	/* 16k */
62fa9e4066Sahrens #define	DNODE_CORE_SIZE		64	/* 64 bytes for dnode sans blkptrs */
63fa9e4066Sahrens #define	DN_MAX_OBJECT_SHIFT	48	/* 256 trillion (zfs_fid_t limit) */
64fa9e4066Sahrens #define	DN_MAX_OFFSET_SHIFT	64	/* 2^64 bytes in a dnode */
65fa9e4066Sahrens 
660a586ceaSMark Shellenbaum /*
670a586ceaSMark Shellenbaum  * dnode id flags
680a586ceaSMark Shellenbaum  *
690a586ceaSMark Shellenbaum  * Note: a file will never ever have its
700a586ceaSMark Shellenbaum  * ids moved from bonus->spill
710a586ceaSMark Shellenbaum  * and only in a crypto environment would it be on spill
720a586ceaSMark Shellenbaum  */
730a586ceaSMark Shellenbaum #define	DN_ID_CHKED_BONUS	0x1
740a586ceaSMark Shellenbaum #define	DN_ID_CHKED_SPILL	0x2
750a586ceaSMark Shellenbaum #define	DN_ID_OLD_EXIST		0x4
760a586ceaSMark Shellenbaum #define	DN_ID_NEW_EXIST		0x8
770a586ceaSMark Shellenbaum 
78fa9e4066Sahrens /*
79fa9e4066Sahrens  * Derived constants.
80fa9e4066Sahrens  */
81fa9e4066Sahrens #define	DNODE_SIZE	(1 << DNODE_SHIFT)
82fa9e4066Sahrens #define	DN_MAX_NBLKPTR	((DNODE_SIZE - DNODE_CORE_SIZE) >> SPA_BLKPTRSHIFT)
83fa9e4066Sahrens #define	DN_MAX_BONUSLEN	(DNODE_SIZE - DNODE_CORE_SIZE - (1 << SPA_BLKPTRSHIFT))
84ea8dc4b6Seschrock #define	DN_MAX_OBJECT	(1ULL << DN_MAX_OBJECT_SHIFT)
851934e92fSmaybee #define	DN_ZERO_BONUSLEN	(DN_MAX_BONUSLEN + 1)
860a586ceaSMark Shellenbaum #define	DN_KILL_SPILLBLK (1)
87fa9e4066Sahrens 
88fa9e4066Sahrens #define	DNODES_PER_BLOCK_SHIFT	(DNODE_BLOCK_SHIFT - DNODE_SHIFT)
89fa9e4066Sahrens #define	DNODES_PER_BLOCK	(1ULL << DNODES_PER_BLOCK_SHIFT)
90fa9e4066Sahrens #define	DNODES_PER_LEVEL_SHIFT	(DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT)
91c1449561SEric Taylor #define	DNODES_PER_LEVEL	(1ULL << DNODES_PER_LEVEL_SHIFT)
92fa9e4066Sahrens 
93fa9e4066Sahrens /* The +2 here is a cheesy way to round up */
94fa9e4066Sahrens #define	DN_MAX_LEVELS	(2 + ((DN_MAX_OFFSET_SHIFT - SPA_MINBLOCKSHIFT) / \
95fa9e4066Sahrens 	(DN_MIN_INDBLKSHIFT - SPA_BLKPTRSHIFT)))
96fa9e4066Sahrens 
97fa9e4066Sahrens #define	DN_BONUS(dnp)	((void*)((dnp)->dn_bonus + \
98fa9e4066Sahrens 	(((dnp)->dn_nblkptr - 1) * sizeof (blkptr_t))))
99fa9e4066Sahrens 
10099653d4eSeschrock #define	DN_USED_BYTES(dnp) (((dnp)->dn_flags & DNODE_FLAG_USED_BYTES) ? \
10199653d4eSeschrock 	(dnp)->dn_used : (dnp)->dn_used << SPA_MINBLOCKSHIFT)
10299653d4eSeschrock 
103fa9e4066Sahrens #define	EPB(blkshift, typeshift)	(1 << (blkshift - typeshift))
104fa9e4066Sahrens 
105fa9e4066Sahrens struct dmu_buf_impl;
106503ad85cSMatthew Ahrens struct objset;
107fa9e4066Sahrens struct zio;
108fa9e4066Sahrens 
109fa9e4066Sahrens enum dnode_dirtycontext {
110fa9e4066Sahrens 	DN_UNDIRTIED,
111fa9e4066Sahrens 	DN_DIRTY_OPEN,
112fa9e4066Sahrens 	DN_DIRTY_SYNC
113fa9e4066Sahrens };
114fa9e4066Sahrens 
11599653d4eSeschrock /* Is dn_used in bytes?  if not, it's in multiples of SPA_MINBLOCKSIZE */
11614843421SMatthew Ahrens #define	DNODE_FLAG_USED_BYTES		(1<<0)
11714843421SMatthew Ahrens #define	DNODE_FLAG_USERUSED_ACCOUNTED	(1<<1)
11899653d4eSeschrock 
1190a586ceaSMark Shellenbaum /* Does dnode have a SA spill blkptr in bonus? */
1200a586ceaSMark Shellenbaum #define	DNODE_FLAG_SPILL_BLKPTR	(1<<2)
1210a586ceaSMark Shellenbaum 
122fa9e4066Sahrens typedef struct dnode_phys {
123fa9e4066Sahrens 	uint8_t dn_type;		/* dmu_object_type_t */
124fa9e4066Sahrens 	uint8_t dn_indblkshift;		/* ln2(indirect block size) */
125fa9e4066Sahrens 	uint8_t dn_nlevels;		/* 1=dn_blkptr->data blocks */
126fa9e4066Sahrens 	uint8_t dn_nblkptr;		/* length of dn_blkptr */
127fa9e4066Sahrens 	uint8_t dn_bonustype;		/* type of data in bonus buffer */
128fa9e4066Sahrens 	uint8_t	dn_checksum;		/* ZIO_CHECKSUM type */
129fa9e4066Sahrens 	uint8_t	dn_compress;		/* ZIO_COMPRESS type */
13099653d4eSeschrock 	uint8_t dn_flags;		/* DNODE_FLAG_* */
131fa9e4066Sahrens 	uint16_t dn_datablkszsec;	/* data block size in 512b sectors */
132fa9e4066Sahrens 	uint16_t dn_bonuslen;		/* length of dn_bonus */
133fa9e4066Sahrens 	uint8_t dn_pad2[4];
134fa9e4066Sahrens 
135fa9e4066Sahrens 	/* accounting is protected by dn_dirty_mtx */
136fa9e4066Sahrens 	uint64_t dn_maxblkid;		/* largest allocated block ID */
13799653d4eSeschrock 	uint64_t dn_used;		/* bytes (or sectors) of disk space */
138fa9e4066Sahrens 
139fa9e4066Sahrens 	uint64_t dn_pad3[4];
140fa9e4066Sahrens 
141fa9e4066Sahrens 	blkptr_t dn_blkptr[1];
1420a586ceaSMark Shellenbaum 	uint8_t dn_bonus[DN_MAX_BONUSLEN - sizeof (blkptr_t)];
1430a586ceaSMark Shellenbaum 	blkptr_t dn_spill;
144fa9e4066Sahrens } dnode_phys_t;
145fa9e4066Sahrens 
146fa9e4066Sahrens typedef struct dnode {
147fa9e4066Sahrens 	/*
148f7170741SWill Andrews 	 * Protects the structure of the dnode, including the number of levels
149f7170741SWill Andrews 	 * of indirection (dn_nlevels), dn_maxblkid, and dn_next_*
150fa9e4066Sahrens 	 */
151fa9e4066Sahrens 	krwlock_t dn_struct_rwlock;
152fa9e4066Sahrens 
15314843421SMatthew Ahrens 	/* Our link on dn_objset->os_dnodes list; protected by os_lock.  */
154fa9e4066Sahrens 	list_node_t dn_link;
155fa9e4066Sahrens 
156fa9e4066Sahrens 	/* immutable: */
157503ad85cSMatthew Ahrens 	struct objset *dn_objset;
158fa9e4066Sahrens 	uint64_t dn_object;
159fa9e4066Sahrens 	struct dmu_buf_impl *dn_dbuf;
160744947dcSTom Erickson 	struct dnode_handle *dn_handle;
161fa9e4066Sahrens 	dnode_phys_t *dn_phys; /* pointer into dn->dn_dbuf->db.db_data */
162fa9e4066Sahrens 
163fa9e4066Sahrens 	/*
164c543ec06Sahrens 	 * Copies of stuff in dn_phys.  They're valid in the open
165c543ec06Sahrens 	 * context (eg. even before the dnode is first synced).
166c543ec06Sahrens 	 * Where necessary, these are protected by dn_struct_rwlock.
167fa9e4066Sahrens 	 */
168c543ec06Sahrens 	dmu_object_type_t dn_type;	/* object type */
169c543ec06Sahrens 	uint16_t dn_bonuslen;		/* bonus length */
170c543ec06Sahrens 	uint8_t dn_bonustype;		/* bonus type */
171fa9e4066Sahrens 	uint8_t dn_nblkptr;		/* number of blkptrs (immutable) */
172fa9e4066Sahrens 	uint8_t dn_checksum;		/* ZIO_CHECKSUM type */
173fa9e4066Sahrens 	uint8_t dn_compress;		/* ZIO_COMPRESS type */
174fa9e4066Sahrens 	uint8_t dn_nlevels;
175fa9e4066Sahrens 	uint8_t dn_indblkshift;
176c543ec06Sahrens 	uint8_t dn_datablkshift;	/* zero if blksz not power of 2! */
177744947dcSTom Erickson 	uint8_t dn_moved;		/* Has this dnode been moved? */
178c543ec06Sahrens 	uint16_t dn_datablkszsec;	/* in 512b sectors */
179c543ec06Sahrens 	uint32_t dn_datablksz;		/* in bytes */
180c543ec06Sahrens 	uint64_t dn_maxblkid;
1812acef22dSMatthew Ahrens 	uint8_t dn_next_type[TXG_SIZE];
182da03de99SMark Maybee 	uint8_t dn_next_nblkptr[TXG_SIZE];
183fa9e4066Sahrens 	uint8_t dn_next_nlevels[TXG_SIZE];
184fa9e4066Sahrens 	uint8_t dn_next_indblkshift[TXG_SIZE];
1850a586ceaSMark Shellenbaum 	uint8_t dn_next_bonustype[TXG_SIZE];
1860a586ceaSMark Shellenbaum 	uint8_t dn_rm_spillblk[TXG_SIZE];	/* for removing spill blk */
1871934e92fSmaybee 	uint16_t dn_next_bonuslen[TXG_SIZE];
188c543ec06Sahrens 	uint32_t dn_next_blksz[TXG_SIZE];	/* next block size in bytes */
189fa9e4066Sahrens 
190744947dcSTom Erickson 	/* protected by dn_dbufs_mtx; declared here to fill 32-bit hole */
191744947dcSTom Erickson 	uint32_t dn_dbufs_count;	/* count of dn_dbufs */
192713d6c20SMatthew Ahrens 	/* There are no level-0 blocks of this blkid or higher in dn_dbufs */
193713d6c20SMatthew Ahrens 	uint64_t dn_unlisted_l0_blkid;
194744947dcSTom Erickson 
195fa9e4066Sahrens 	/* protected by os_lock: */
196fa9e4066Sahrens 	list_node_t dn_dirty_link[TXG_SIZE];	/* next on dataset's dirty */
197fa9e4066Sahrens 
198fa9e4066Sahrens 	/* protected by dn_mtx: */
199fa9e4066Sahrens 	kmutex_t dn_mtx;
200c717a561Smaybee 	list_t dn_dirty_records[TXG_SIZE];
201*bf16b11eSMatthew Ahrens 	struct range_tree *dn_free_ranges[TXG_SIZE];
202fa9e4066Sahrens 	uint64_t dn_allocated_txg;
203fa9e4066Sahrens 	uint64_t dn_free_txg;
204fa9e4066Sahrens 	uint64_t dn_assigned_txg;
205fa9e4066Sahrens 	kcondvar_t dn_notxholds;
206fa9e4066Sahrens 	enum dnode_dirtycontext dn_dirtyctx;
207fa9e4066Sahrens 	uint8_t *dn_dirtyctx_firstset;		/* dbg: contents meaningless */
208fa9e4066Sahrens 
209fa9e4066Sahrens 	/* protected by own devices */
210fa9e4066Sahrens 	refcount_t dn_tx_holds;
211fa9e4066Sahrens 	refcount_t dn_holds;
212fa9e4066Sahrens 
213fa9e4066Sahrens 	kmutex_t dn_dbufs_mtx;
214744947dcSTom Erickson 	list_t dn_dbufs;		/* descendent dbufs */
215744947dcSTom Erickson 
216744947dcSTom Erickson 	/* protected by dn_struct_rwlock */
217ea8dc4b6Seschrock 	struct dmu_buf_impl *dn_bonus;	/* bonus buffer dbuf */
218744947dcSTom Erickson 
2190a586ceaSMark Shellenbaum 	boolean_t dn_have_spill;	/* have spill or are spilling */
220fa9e4066Sahrens 
221c717a561Smaybee 	/* parent IO for current sync write */
222c717a561Smaybee 	zio_t *dn_zio;
223c717a561Smaybee 
22414843421SMatthew Ahrens 	/* used in syncing context */
2250a586ceaSMark Shellenbaum 	uint64_t dn_oldused;	/* old phys used bytes */
2260a586ceaSMark Shellenbaum 	uint64_t dn_oldflags;	/* old phys dn_flags */
2270a586ceaSMark Shellenbaum 	uint64_t dn_olduid, dn_oldgid;
2280a586ceaSMark Shellenbaum 	uint64_t dn_newuid, dn_newgid;
2290a586ceaSMark Shellenbaum 	int dn_id_flags;
23014843421SMatthew Ahrens 
231fa9e4066Sahrens 	/* holds prefetch structure */
232fa9e4066Sahrens 	struct zfetch	dn_zfetch;
233fa9e4066Sahrens } dnode_t;
234fa9e4066Sahrens 
235744947dcSTom Erickson /*
236744947dcSTom Erickson  * Adds a level of indirection between the dbuf and the dnode to avoid
237744947dcSTom Erickson  * iterating descendent dbufs in dnode_move(). Handles are not allocated
238744947dcSTom Erickson  * individually, but as an array of child dnodes in dnode_hold_impl().
239744947dcSTom Erickson  */
240744947dcSTom Erickson typedef struct dnode_handle {
241744947dcSTom Erickson 	/* Protects dnh_dnode from modification by dnode_move(). */
242744947dcSTom Erickson 	zrlock_t dnh_zrlock;
243744947dcSTom Erickson 	dnode_t *dnh_dnode;
244744947dcSTom Erickson } dnode_handle_t;
245744947dcSTom Erickson 
246744947dcSTom Erickson typedef struct dnode_children {
247744947dcSTom Erickson 	size_t dnc_count;		/* number of children */
248744947dcSTom Erickson 	dnode_handle_t dnc_children[1];	/* sized dynamically */
249744947dcSTom Erickson } dnode_children_t;
250744947dcSTom Erickson 
251fa9e4066Sahrens typedef struct free_range {
252fa9e4066Sahrens 	avl_node_t fr_node;
253fa9e4066Sahrens 	uint64_t fr_blkid;
254fa9e4066Sahrens 	uint64_t fr_nblks;
255fa9e4066Sahrens } free_range_t;
256fa9e4066Sahrens 
257503ad85cSMatthew Ahrens dnode_t *dnode_special_open(struct objset *dd, dnode_phys_t *dnp,
258744947dcSTom Erickson     uint64_t object, dnode_handle_t *dnh);
259744947dcSTom Erickson void dnode_special_close(dnode_handle_t *dnh);
260fa9e4066Sahrens 
2611934e92fSmaybee void dnode_setbonuslen(dnode_t *dn, int newsize, dmu_tx_t *tx);
2620a586ceaSMark Shellenbaum void dnode_setbonus_type(dnode_t *dn, dmu_object_type_t, dmu_tx_t *tx);
2630a586ceaSMark Shellenbaum void dnode_rm_spill(dnode_t *dn, dmu_tx_t *tx);
2640a586ceaSMark Shellenbaum 
265503ad85cSMatthew Ahrens int dnode_hold(struct objset *dd, uint64_t object,
266ea8dc4b6Seschrock     void *ref, dnode_t **dnp);
267503ad85cSMatthew Ahrens int dnode_hold_impl(struct objset *dd, uint64_t object, int flag,
268ea8dc4b6Seschrock     void *ref, dnode_t **dnp);
2691934e92fSmaybee boolean_t dnode_add_ref(dnode_t *dn, void *ref);
270fa9e4066Sahrens void dnode_rele(dnode_t *dn, void *ref);
271fa9e4066Sahrens void dnode_setdirty(dnode_t *dn, dmu_tx_t *tx);
272c717a561Smaybee void dnode_sync(dnode_t *dn, dmu_tx_t *tx);
273fa9e4066Sahrens void dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
274fa9e4066Sahrens     dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
275fa9e4066Sahrens void dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
276fa9e4066Sahrens     dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
277fa9e4066Sahrens void dnode_free(dnode_t *dn, dmu_tx_t *tx);
278fa9e4066Sahrens void dnode_byteswap(dnode_phys_t *dnp);
279fa9e4066Sahrens void dnode_buf_byteswap(void *buf, size_t size);
280fa9e4066Sahrens void dnode_verify(dnode_t *dn);
281fa9e4066Sahrens int dnode_set_blksz(dnode_t *dn, uint64_t size, int ibs, dmu_tx_t *tx);
282fa9e4066Sahrens void dnode_free_range(dnode_t *dn, uint64_t off, uint64_t len, dmu_tx_t *tx);
283fa9e4066Sahrens void dnode_diduse_space(dnode_t *dn, int64_t space);
284fa9e4066Sahrens void dnode_willuse_space(dnode_t *dn, int64_t space, dmu_tx_t *tx);
2858346f03fSJonathan W Adams void dnode_new_blkid(dnode_t *dn, uint64_t blkid, dmu_tx_t *tx, boolean_t);
286fa9e4066Sahrens uint64_t dnode_block_freed(dnode_t *dn, uint64_t blkid);
287fa9e4066Sahrens void dnode_init(void);
288fa9e4066Sahrens void dnode_fini(void);
289cdb0ab79Smaybee int dnode_next_offset(dnode_t *dn, int flags, uint64_t *off,
290cdb0ab79Smaybee     int minlvl, uint64_t blkfill, uint64_t txg);
2911934e92fSmaybee void dnode_evict_dbufs(dnode_t *dn);
292fa9e4066Sahrens 
293fa9e4066Sahrens #ifdef ZFS_DEBUG
294fa9e4066Sahrens 
295fa9e4066Sahrens /*
296fa9e4066Sahrens  * There should be a ## between the string literal and fmt, to make it
297fa9e4066Sahrens  * clear that we're joining two strings together, but that piece of shit
298fa9e4066Sahrens  * gcc doesn't support that preprocessor token.
299fa9e4066Sahrens  */
300fa9e4066Sahrens #define	dprintf_dnode(dn, fmt, ...) do { \
301fa9e4066Sahrens 	if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
302fa9e4066Sahrens 	char __db_buf[32]; \
303fa9e4066Sahrens 	uint64_t __db_obj = (dn)->dn_object; \
304fa9e4066Sahrens 	if (__db_obj == DMU_META_DNODE_OBJECT) \
305fa9e4066Sahrens 		(void) strcpy(__db_buf, "mdn"); \
306fa9e4066Sahrens 	else \
307fa9e4066Sahrens 		(void) snprintf(__db_buf, sizeof (__db_buf), "%lld", \
308fa9e4066Sahrens 		    (u_longlong_t)__db_obj);\
309fa9e4066Sahrens 	dprintf_ds((dn)->dn_objset->os_dsl_dataset, "obj=%s " fmt, \
310fa9e4066Sahrens 	    __db_buf, __VA_ARGS__); \
311fa9e4066Sahrens 	} \
312fa9e4066Sahrens _NOTE(CONSTCOND) } while (0)
313fa9e4066Sahrens 
3149c9dc39aSek #define	DNODE_VERIFY(dn)		dnode_verify(dn)
3159c9dc39aSek #define	FREE_VERIFY(db, start, end, tx)	free_verify(db, start, end, tx)
3169c9dc39aSek 
317fa9e4066Sahrens #else
318fa9e4066Sahrens 
319fa9e4066Sahrens #define	dprintf_dnode(db, fmt, ...)
3209c9dc39aSek #define	DNODE_VERIFY(dn)
3219c9dc39aSek #define	FREE_VERIFY(db, start, end, tx)
322fa9e4066Sahrens 
323fa9e4066Sahrens #endif
324fa9e4066Sahrens 
325fa9e4066Sahrens #ifdef	__cplusplus
326fa9e4066Sahrens }
327fa9e4066Sahrens #endif
328fa9e4066Sahrens 
329fa9e4066Sahrens #endif	/* _SYS_DNODE_H */
330