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/*
* Copyright (C) 2007 Oracle. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#ifndef __PENDING_EXTENT__
#define __PENDING_EXTENT__
#include "kerncompat.h"
#include "rbtree.h"
struct cache_tree {
struct rb_root root;
};
struct cache_extent {
struct rb_node rb_node;
u64 start;
u64 size;
};
void cache_tree_init(struct cache_tree *tree);
void remove_cache_extent(struct cache_tree *tree,
struct cache_extent *pe);
struct cache_extent *find_first_cache_extent(struct cache_tree *tree,
u64 start);
struct cache_extent *next_cache_extent(struct cache_extent *pe);
struct cache_extent *find_cache_extent(struct cache_tree *tree,
u64 start, u64 size);
int insert_cache_extent(struct cache_tree *tree, u64 start, u64 size);
int insert_existing_cache_extent(struct cache_tree *tree,
struct cache_extent *pe);
static inline void free_cache_extent(struct cache_extent *pe)
{
free(pe);
}
struct cache_extent *alloc_pending_extent(u64 start, u64 size);
#endif
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