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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25 #include <sys/bplist.h>
26 #include <sys/zfs_context.h>
27
28
29 void
bplist_create(bplist_t * bpl)30 bplist_create(bplist_t *bpl)
31 {
32 mutex_init(&bpl->bpl_lock, NULL, MUTEX_DEFAULT, NULL);
33 list_create(&bpl->bpl_list, sizeof (bplist_entry_t),
34 offsetof(bplist_entry_t, bpe_node));
35 }
36
37 void
bplist_destroy(bplist_t * bpl)38 bplist_destroy(bplist_t *bpl)
39 {
40 list_destroy(&bpl->bpl_list);
41 mutex_destroy(&bpl->bpl_lock);
42 }
43
44 void
bplist_append(bplist_t * bpl,const blkptr_t * bp)45 bplist_append(bplist_t *bpl, const blkptr_t *bp)
46 {
47 bplist_entry_t *bpe = kmem_alloc(sizeof (*bpe), KM_SLEEP);
48
49 mutex_enter(&bpl->bpl_lock);
50 bpe->bpe_blk = *bp;
51 list_insert_tail(&bpl->bpl_list, bpe);
52 mutex_exit(&bpl->bpl_lock);
53 }
54
55 void
bplist_iterate(bplist_t * bpl,bplist_itor_t * func,void * arg,dmu_tx_t * tx)56 bplist_iterate(bplist_t *bpl, bplist_itor_t *func, void *arg, dmu_tx_t *tx)
57 {
58 bplist_entry_t *bpe;
59
60 mutex_enter(&bpl->bpl_lock);
61 while (bpe = list_head(&bpl->bpl_list)) {
62 list_remove(&bpl->bpl_list, bpe);
63 mutex_exit(&bpl->bpl_lock);
64 func(arg, &bpe->bpe_blk, tx);
65 kmem_free(bpe, sizeof (*bpe));
66 mutex_enter(&bpl->bpl_lock);
67 }
68 mutex_exit(&bpl->bpl_lock);
69 }
70