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428870ff BB |
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) 2010, Oracle and/or its affiliates. All rights reserved. | |
2696dfaf | 23 | * Copyright (c) 2013 by Delphix. All rights reserved. |
428870ff BB |
24 | */ |
25 | ||
26 | #ifndef _SYS_DSL_SCAN_H | |
27 | #define _SYS_DSL_SCAN_H | |
28 | ||
29 | #include <sys/zfs_context.h> | |
30 | #include <sys/zio.h> | |
31 | #include <sys/ddt.h> | |
32 | #include <sys/bplist.h> | |
33 | ||
34 | #ifdef __cplusplus | |
35 | extern "C" { | |
36 | #endif | |
37 | ||
38 | struct objset; | |
39 | struct dsl_dir; | |
40 | struct dsl_dataset; | |
41 | struct dsl_pool; | |
42 | struct dmu_tx; | |
43 | ||
44 | /* | |
45 | * All members of this structure must be uint64_t, for byteswap | |
46 | * purposes. | |
47 | */ | |
48 | typedef struct dsl_scan_phys { | |
49 | uint64_t scn_func; /* pool_scan_func_t */ | |
50 | uint64_t scn_state; /* dsl_scan_state_t */ | |
51 | uint64_t scn_queue_obj; | |
52 | uint64_t scn_min_txg; | |
53 | uint64_t scn_max_txg; | |
54 | uint64_t scn_cur_min_txg; | |
55 | uint64_t scn_cur_max_txg; | |
56 | uint64_t scn_start_time; | |
57 | uint64_t scn_end_time; | |
58 | uint64_t scn_to_examine; /* total bytes to be scanned */ | |
59 | uint64_t scn_examined; /* bytes scanned so far */ | |
60 | uint64_t scn_to_process; | |
61 | uint64_t scn_processed; | |
62 | uint64_t scn_errors; /* scan I/O error count */ | |
63 | uint64_t scn_ddt_class_max; | |
64 | ddt_bookmark_t scn_ddt_bookmark; | |
65 | zbookmark_t scn_bookmark; | |
66 | uint64_t scn_flags; /* dsl_scan_flags_t */ | |
67 | } dsl_scan_phys_t; | |
68 | ||
69 | #define SCAN_PHYS_NUMINTS (sizeof (dsl_scan_phys_t) / sizeof (uint64_t)) | |
70 | ||
71 | typedef enum dsl_scan_flags { | |
72 | DSF_VISIT_DS_AGAIN = 1<<0, | |
73 | } dsl_scan_flags_t; | |
74 | ||
75 | typedef struct dsl_scan { | |
76 | struct dsl_pool *scn_dp; | |
77 | ||
78 | boolean_t scn_pausing; | |
79 | uint64_t scn_restart_txg; | |
80 | uint64_t scn_sync_start_time; | |
81 | zio_t *scn_zio_root; | |
82 | ||
9ae529ec CS |
83 | /* for freeing blocks */ |
84 | boolean_t scn_is_bptree; | |
2696dfaf | 85 | boolean_t scn_async_destroying; |
9ae529ec | 86 | |
428870ff BB |
87 | /* for debugging / information */ |
88 | uint64_t scn_visited_this_txg; | |
89 | ||
90 | dsl_scan_phys_t scn_phys; | |
91 | } dsl_scan_t; | |
92 | ||
93 | int dsl_scan_init(struct dsl_pool *dp, uint64_t txg); | |
94 | void dsl_scan_fini(struct dsl_pool *dp); | |
95 | void dsl_scan_sync(struct dsl_pool *, dmu_tx_t *); | |
96 | int dsl_scan_cancel(struct dsl_pool *); | |
97 | int dsl_scan(struct dsl_pool *, pool_scan_func_t); | |
98 | void dsl_resilver_restart(struct dsl_pool *, uint64_t txg); | |
99 | boolean_t dsl_scan_resilvering(struct dsl_pool *dp); | |
100 | boolean_t dsl_dataset_unstable(struct dsl_dataset *ds); | |
101 | void dsl_scan_ddt_entry(dsl_scan_t *scn, enum zio_checksum checksum, | |
102 | ddt_entry_t *dde, dmu_tx_t *tx); | |
103 | void dsl_scan_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx); | |
104 | void dsl_scan_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx); | |
105 | void dsl_scan_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2, | |
106 | struct dmu_tx *tx); | |
107 | boolean_t dsl_scan_active(dsl_scan_t *scn); | |
108 | ||
109 | #ifdef __cplusplus | |
110 | } | |
111 | #endif | |
112 | ||
113 | #endif /* _SYS_DSL_SCAN_H */ |