93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
|
|
* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _SYS_DMU_TRAVERSE_H
|
|
#define _SYS_DMU_TRAVERSE_H
|
|
|
|
#include <sys/zfs_context.h>
|
|
#include <sys/spa.h>
|
|
#include <sys/zio.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct dnode_phys;
|
|
struct dsl_dataset;
|
|
struct zilog;
|
|
struct arc_buf;
|
|
|
|
typedef int (blkptr_cb_t)(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
|
|
const zbookmark_phys_t *zb, const struct dnode_phys *dnp, void *arg);
|
|
|
|
#define TRAVERSE_PRE (1<<0)
|
|
#define TRAVERSE_POST (1<<1)
|
|
#define TRAVERSE_PREFETCH_METADATA (1<<2)
|
|
#define TRAVERSE_PREFETCH_DATA (1<<3)
|
|
#define TRAVERSE_PREFETCH (TRAVERSE_PREFETCH_METADATA | TRAVERSE_PREFETCH_DATA)
|
|
#define TRAVERSE_HARD (1<<4)
|
|
|
|
/*
|
|
* Encrypted dnode blocks have encrypted bonus buffers while the rest
|
|
* of the dnode is left unencrypted. Callers can specify the
|
|
* TRAVERSE_NO_DECRYPT flag to indicate to the traversal code that
|
|
* they wish to receive the raw encrypted dnodes instead of attempting
|
|
* to read the logical data.
|
|
*/
|
|
#define TRAVERSE_NO_DECRYPT (1<<5)
|
|
|
|
/* Special traverse error return value to indicate skipping of children */
|
|
#define TRAVERSE_VISIT_NO_CHILDREN -1
|
|
|
|
int traverse_dataset(struct dsl_dataset *ds,
|
|
uint64_t txg_start, int flags, blkptr_cb_t func, void *arg);
|
|
int traverse_dataset_resume(struct dsl_dataset *ds, uint64_t txg_start,
|
|
zbookmark_phys_t *resume, int flags, blkptr_cb_t func, void *arg);
|
|
int traverse_dataset_destroyed(spa_t *spa, blkptr_t *blkptr,
|
|
uint64_t txg_start, zbookmark_phys_t *resume, int flags,
|
|
blkptr_cb_t func, void *arg);
|
|
int traverse_pool(spa_t *spa,
|
|
uint64_t txg_start, int flags, blkptr_cb_t func, void *arg);
|
|
|
|
/*
|
|
* Note that this calculation cannot overflow with the current maximum indirect
|
|
* block size (128k). If that maximum is increased to 1M, however, this
|
|
* calculation can overflow, and handling would need to be added to ensure
|
|
* continued correctness.
|
|
*/
|
|
static inline uint64_t
|
|
bp_span_in_blocks(uint8_t indblkshift, uint64_t level)
|
|
{
|
|
unsigned int shift = level * (indblkshift - SPA_BLKPTRSHIFT);
|
|
ASSERT3U(shift, <, 64);
|
|
return (1ULL << shift);
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_DMU_TRAVERSE_H */
|