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.
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.
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]
22 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
32 #include <sys/zfs_context.h>
38 typedef struct bpobj_phys {
40 * This is the bonus buffer for the dead lists. The object's
41 * contents is an array of bpo_entries blkptr_t's, representing
42 * a total of bpo_bytes physical space.
44 uint64_t bpo_num_blkptrs;
49 uint64_t bpo_num_subobjs;
52 #define BPOBJ_SIZE_V0 (2 * sizeof (uint64_t))
53 #define BPOBJ_SIZE_V1 (4 * sizeof (uint64_t))
55 typedef struct bpobj {
61 uint8_t bpo_havesubobj;
62 bpobj_phys_t *bpo_phys;
64 dmu_buf_t *bpo_cached_dbuf;
67 typedef int bpobj_itor_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx);
69 uint64_t bpobj_alloc(objset_t *mos, int blocksize, dmu_tx_t *tx);
70 void bpobj_free(objset_t *os, uint64_t obj, dmu_tx_t *tx);
72 int bpobj_open(bpobj_t *bpo, objset_t *mos, uint64_t object);
73 void bpobj_close(bpobj_t *bpo);
75 int bpobj_iterate(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx);
76 int bpobj_iterate_nofree(bpobj_t *bpo, bpobj_itor_t func, void *, dmu_tx_t *);
77 int bpobj_iterate_dbg(bpobj_t *bpo, uint64_t *itorp, blkptr_t *bp);
79 void bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx);
80 void bpobj_enqueue(bpobj_t *bpo, const blkptr_t *bp, dmu_tx_t *tx);
82 int bpobj_space(bpobj_t *bpo,
83 uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
84 int bpobj_space_range(bpobj_t *bpo, uint64_t mintxg, uint64_t maxtxg,
85 uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
91 #endif /* _SYS_BPOBJ_H */