xref: /illumos-gate/usr/src/uts/common/fs/zfs/sys/dmu_traverse.h (revision aedf2b3bb56b025fcaf87b49ec6c8aeea07f16d7)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_SYS_DMU_TRAVERSE_H
27 #define	_SYS_DMU_TRAVERSE_H
28 
29 #include <sys/zfs_context.h>
30 #include <sys/spa.h>
31 #include <sys/zio.h>
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 struct dnode_phys;
38 struct dsl_dataset;
39 struct zilog;
40 
41 typedef int (blkptr_cb_t)(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
42     const zbookmark_t *zb, const struct dnode_phys *dnp, void *arg);
43 
44 #define	TRAVERSE_PRE			(1<<0)
45 #define	TRAVERSE_POST			(1<<1)
46 #define	TRAVERSE_PREFETCH_METADATA	(1<<2)
47 #define	TRAVERSE_PREFETCH_DATA		(1<<3)
48 #define	TRAVERSE_PREFETCH (TRAVERSE_PREFETCH_METADATA | TRAVERSE_PREFETCH_DATA)
49 
50 int traverse_dataset(struct dsl_dataset *ds, uint64_t txg_start,
51     int flags, blkptr_cb_t func, void *arg);
52 int traverse_pool(spa_t *spa, blkptr_cb_t func, void *arg, uint64_t txg_start);
53 
54 #ifdef	__cplusplus
55 }
56 #endif
57 
58 #endif /* _SYS_DMU_TRAVERSE_H */
59