1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*
* 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) 2010, Oracle and/or its affiliates. All rights reserved.
*/
#ifndef _SYS_DSL_SCAN_H
#define _SYS_DSL_SCAN_H
#include <sys/zfs_context.h>
#include <sys/zio.h>
#include <sys/ddt.h>
#include <sys/bplist.h>
#ifdef __cplusplus
extern "C" {
#endif
struct objset;
struct dsl_dir;
struct dsl_dataset;
struct dsl_pool;
struct dmu_tx;
/*
* All members of this structure must be uint64_t, for byteswap
* purposes.
*/
typedef struct dsl_scan_phys {
uint64_t scn_func; /* pool_scan_func_t */
uint64_t scn_state; /* dsl_scan_state_t */
uint64_t scn_queue_obj;
uint64_t scn_min_txg;
uint64_t scn_max_txg;
uint64_t scn_cur_min_txg;
uint64_t scn_cur_max_txg;
uint64_t scn_start_time;
uint64_t scn_end_time;
uint64_t scn_to_examine; /* total bytes to be scanned */
uint64_t scn_examined; /* bytes scanned so far */
uint64_t scn_to_process;
uint64_t scn_processed;
uint64_t scn_errors; /* scan I/O error count */
uint64_t scn_ddt_class_max;
ddt_bookmark_t scn_ddt_bookmark;
zbookmark_t scn_bookmark;
uint64_t scn_flags; /* dsl_scan_flags_t */
} dsl_scan_phys_t;
#define SCAN_PHYS_NUMINTS (sizeof (dsl_scan_phys_t) / sizeof (uint64_t))
typedef enum dsl_scan_flags {
DSF_VISIT_DS_AGAIN = 1<<0,
} dsl_scan_flags_t;
typedef struct dsl_scan {
struct dsl_pool *scn_dp;
boolean_t scn_pausing;
uint64_t scn_restart_txg;
uint64_t scn_sync_start_time;
zio_t *scn_zio_root;
/* for debugging / information */
uint64_t scn_visited_this_txg;
dsl_scan_phys_t scn_phys;
} dsl_scan_t;
int dsl_scan_init(struct dsl_pool *dp, uint64_t txg);
void dsl_scan_fini(struct dsl_pool *dp);
void dsl_scan_sync(struct dsl_pool *, dmu_tx_t *);
int dsl_scan_cancel(struct dsl_pool *);
int dsl_scan(struct dsl_pool *, pool_scan_func_t);
void dsl_resilver_restart(struct dsl_pool *, uint64_t txg);
boolean_t dsl_scan_resilvering(struct dsl_pool *dp);
boolean_t dsl_dataset_unstable(struct dsl_dataset *ds);
void dsl_scan_ddt_entry(dsl_scan_t *scn, enum zio_checksum checksum,
ddt_entry_t *dde, dmu_tx_t *tx);
void dsl_scan_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx);
void dsl_scan_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx);
void dsl_scan_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2,
struct dmu_tx *tx);
boolean_t dsl_scan_active(dsl_scan_t *scn);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DSL_SCAN_H */
|
