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 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 38 bplist_destroy(bplist_t *bpl) 39 { 40 list_destroy(&bpl->bpl_list); 41 mutex_destroy(&bpl->bpl_lock); 42 } 43 44 void 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 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