Root/fs/ocfs2/localalloc.h

1/* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
3 *
4 * localalloc.h
5 *
6 * Function prototypes
7 *
8 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public
21 * License along with this program; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 021110-1307, USA.
24 */
25
26#ifndef OCFS2_LOCALALLOC_H
27#define OCFS2_LOCALALLOC_H
28
29int ocfs2_load_local_alloc(struct ocfs2_super *osb);
30
31void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb);
32
33int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
34                     int node_num,
35                     struct ocfs2_dinode **alloc_copy);
36
37int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
38                    struct ocfs2_dinode *alloc);
39
40int ocfs2_alloc_should_use_local(struct ocfs2_super *osb,
41                 u64 bits);
42
43struct ocfs2_alloc_context;
44int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
45                   u32 bits_wanted,
46                   struct ocfs2_alloc_context *ac);
47
48int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
49                 handle_t *handle,
50                 struct ocfs2_alloc_context *ac,
51                 u32 bits_wanted,
52                 u32 *bit_off,
53                 u32 *num_bits);
54
55void ocfs2_local_alloc_seen_free_bits(struct ocfs2_super *osb,
56                      unsigned int num_clusters);
57void ocfs2_la_enable_worker(struct work_struct *work);
58
59#endif /* OCFS2_LOCALALLOC_H */
60

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