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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright (c) 2012, 2014 by Delphix. All rights reserved. 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 struct arc_buf; 41 42 typedef int (blkptr_cb_t)(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 43 const zbookmark_phys_t *zb, const struct dnode_phys *dnp, void *arg); 44 45 #define TRAVERSE_PRE (1<<0) 46 #define TRAVERSE_POST (1<<1) 47 #define TRAVERSE_PREFETCH_METADATA (1<<2) 48 #define TRAVERSE_PREFETCH_DATA (1<<3) 49 #define TRAVERSE_PREFETCH (TRAVERSE_PREFETCH_METADATA | TRAVERSE_PREFETCH_DATA) 50 #define TRAVERSE_HARD (1<<4) 51 52 /* Special traverse error return value to indicate skipping of children */ 53 #define TRAVERSE_VISIT_NO_CHILDREN -1 54 55 int traverse_dataset(struct dsl_dataset *ds, 56 uint64_t txg_start, int flags, blkptr_cb_t func, void *arg); 57 int traverse_dataset_resume(struct dsl_dataset *ds, uint64_t txg_start, 58 zbookmark_phys_t *resume, int flags, blkptr_cb_t func, void *arg); 59 int traverse_dataset_destroyed(spa_t *spa, blkptr_t *blkptr, 60 uint64_t txg_start, zbookmark_phys_t *resume, int flags, 61 blkptr_cb_t func, void *arg); 62 int traverse_pool(spa_t *spa, 63 uint64_t txg_start, int flags, blkptr_cb_t func, void *arg); 64 65 #ifdef __cplusplus 66 } 67 #endif 68 69 #endif /* _SYS_DMU_TRAVERSE_H */ 70