2 * Copyright (C) 2007 Oracle. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
19 #ifndef __PENDING_EXTENT__
20 #define __PENDING_EXTENT__
22 #if BTRFS_FLAT_INCLUDES
23 #include "kerncompat.h"
26 #include <btrfs/kerncompat.h>
27 #include <btrfs/rbtree.h>
28 #endif /* BTRFS_FLAT_INCLUDES */
35 struct rb_node rb_node;
40 void cache_tree_init(struct cache_tree *tree);
41 void remove_cache_extent(struct cache_tree *tree,
42 struct cache_extent *pe);
43 struct cache_extent *find_first_cache_extent(struct cache_tree *tree,
45 struct cache_extent *prev_cache_extent(struct cache_extent *pe);
46 struct cache_extent *next_cache_extent(struct cache_extent *pe);
47 struct cache_extent *find_cache_extent(struct cache_tree *tree,
49 int insert_cache_extent(struct cache_tree *tree, u64 start, u64 size);
50 int insert_existing_cache_extent(struct cache_tree *tree,
51 struct cache_extent *pe);
53 static inline int cache_tree_empty(struct cache_tree *tree)
55 return RB_EMPTY_ROOT(&tree->root);
58 static inline void free_cache_extent(struct cache_extent *pe)
63 struct cache_extent *alloc_pending_extent(u64 start, u64 size);