summaryrefslogtreecommitdiffstats
path: root/fs/ocfs2/refcounttree.h
blob: 9a3695cdbb534b11c44bd5d3022520ec1930c1f0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/* -*- mode: c; c-basic-offset: 8; -*-
 * vim: noexpandtab sw=8 ts=8 sts=0:
 *
 * refcounttree.h
 *
 * Copyright (C) 2009 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 version 2 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.
 */
#ifndef OCFS2_REFCOUNTTREE_H
#define OCFS2_REFCOUNTTREE_H

struct ocfs2_refcount_tree {
	struct rb_node rf_node;
	u64 rf_blkno;
	u32 rf_generation;
	struct rw_semaphore rf_sem;
	struct ocfs2_lock_res rf_lockres;
	struct kref rf_getcnt;
	int rf_removed;

	/* the following 4 fields are used by caching_info. */
	struct ocfs2_caching_info rf_ci;
	spinlock_t rf_lock;
	struct mutex rf_io_mutex;
	struct super_block *rf_sb;
};

#endif /* OCFS2_REFCOUNTTREE_H */