diff options
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/space_reftree.h')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/space_reftree.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/space_reftree.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/space_reftree.h new file mode 100644 index 000000000000..249b15be6729 --- /dev/null +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/space_reftree.h @@ -0,0 +1,57 @@ +/* + * 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 2009 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* + * Copyright (c) 2013 by Delphix. All rights reserved. + */ + +#ifndef _SYS_SPACE_REFTREE_H +#define _SYS_SPACE_REFTREE_H + +#include <sys/range_tree.h> + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct space_ref { + avl_node_t sr_node; /* AVL node */ + uint64_t sr_offset; /* range offset (start or end) */ + int64_t sr_refcnt; /* associated reference count */ +} space_ref_t; + +void space_reftree_create(avl_tree_t *t); +void space_reftree_destroy(avl_tree_t *t); +void space_reftree_add_seg(avl_tree_t *t, uint64_t start, uint64_t end, + int64_t refcnt); +void space_reftree_add_map(avl_tree_t *t, range_tree_t *rt, int64_t refcnt); +void space_reftree_generate_map(avl_tree_t *t, range_tree_t *rt, + int64_t minref); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_SPACE_REFTREE_H */ |