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.
23 */
24
25#ifndef	_SYS_DSL_DEADLIST_H
26#define	_SYS_DSL_DEADLIST_H
27
28#include <sys/bpobj.h>
29#include <sys/zfs_context.h>
30
31#ifdef	__cplusplus
32extern "C" {
33#endif
34
35struct dmu_buf;
36struct dsl_dataset;
37
38typedef struct dsl_deadlist_phys {
39	uint64_t dl_used;
40	uint64_t dl_comp;
41	uint64_t dl_uncomp;
42	uint64_t dl_pad[37]; /* pad out to 320b for future expansion */
43} dsl_deadlist_phys_t;
44
45typedef struct dsl_deadlist {
46	objset_t *dl_os;
47	uint64_t dl_object;
48	avl_tree_t dl_tree;
49	boolean_t dl_havetree;
50	struct dmu_buf *dl_dbuf;
51	dsl_deadlist_phys_t *dl_phys;
52	kmutex_t dl_lock;
53
54	/* if it's the old on-disk format: */
55	bpobj_t dl_bpobj;
56	boolean_t dl_oldfmt;
57} dsl_deadlist_t;
58
59typedef struct dsl_deadlist_entry {
60	avl_node_t dle_node;
61	uint64_t dle_mintxg;
62	bpobj_t dle_bpobj;
63} dsl_deadlist_entry_t;
64
65void dsl_deadlist_open(dsl_deadlist_t *dl, objset_t *os, uint64_t object);
66void dsl_deadlist_close(dsl_deadlist_t *dl);
67uint64_t dsl_deadlist_alloc(objset_t *os, dmu_tx_t *tx);
68void dsl_deadlist_free(objset_t *os, uint64_t dlobj, dmu_tx_t *tx);
69void dsl_deadlist_insert(dsl_deadlist_t *dl, const blkptr_t *bp, dmu_tx_t *tx);
70void dsl_deadlist_add_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx);
71void dsl_deadlist_remove_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx);
72uint64_t dsl_deadlist_clone(dsl_deadlist_t *dl, uint64_t maxtxg,
73    uint64_t mrs_obj, dmu_tx_t *tx);
74void dsl_deadlist_space(dsl_deadlist_t *dl,
75    uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
76void dsl_deadlist_space_range(dsl_deadlist_t *dl,
77    uint64_t mintxg, uint64_t maxtxg,
78    uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
79void dsl_deadlist_merge(dsl_deadlist_t *dl, uint64_t obj, dmu_tx_t *tx);
80void dsl_deadlist_move_bpobj(dsl_deadlist_t *dl, bpobj_t *bpo, uint64_t mintxg,
81    dmu_tx_t *tx);
82
83#ifdef	__cplusplus
84}
85#endif
86
87#endif /* _SYS_DSL_DEADLIST_H */
88