/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2012 by Delphix. All rights reserved. */ #include <sys/bplist.h> #include <sys/zfs_context.h> void bplist_create(bplist_t *bpl) { mutex_init(&bpl->bpl_lock, NULL, MUTEX_DEFAULT, NULL); list_create(&bpl->bpl_list, sizeof (bplist_entry_t), offsetof(bplist_entry_t, bpe_node)); } void bplist_destroy(bplist_t *bpl) { list_destroy(&bpl->bpl_list); mutex_destroy(&bpl->bpl_lock); } void bplist_append(bplist_t *bpl, const blkptr_t *bp) { bplist_entry_t *bpe = kmem_alloc(sizeof (*bpe), KM_SLEEP); mutex_enter(&bpl->bpl_lock); bpe->bpe_blk = *bp; list_insert_tail(&bpl->bpl_list, bpe); mutex_exit(&bpl->bpl_lock); } /* * To aid debugging, we keep the most recently removed entry. This way if * we are in the callback, we can easily locate the entry. */ static bplist_entry_t *bplist_iterate_last_removed; void bplist_iterate(bplist_t *bpl, bplist_itor_t *func, void *arg, dmu_tx_t *tx) { bplist_entry_t *bpe; mutex_enter(&bpl->bpl_lock); while ((bpe = list_head(&bpl->bpl_list))) { bplist_iterate_last_removed = bpe; list_remove(&bpl->bpl_list, bpe); mutex_exit(&bpl->bpl_lock); func(arg, &bpe->bpe_blk, tx); kmem_free(bpe, sizeof (*bpe)); mutex_enter(&bpl->bpl_lock); } mutex_exit(&bpl->bpl_lock); }