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-rw-r--r--uts/common/fs/zfs/bplist.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/uts/common/fs/zfs/bplist.c b/uts/common/fs/zfs/bplist.c
new file mode 100644
index 000000000000..066ccc6b1e05
--- /dev/null
+++ b/uts/common/fs/zfs/bplist.c
@@ -0,0 +1,69 @@
+/*
+ * 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.
+ */
+
+#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);
+}
+
+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)) {
+ 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);
+}