1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
8 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
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.
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.
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.
30 struct ocfs2_slot_info {
33 struct inode *si_inode;
34 struct buffer_head *si_bh;
35 unsigned int si_num_slots;
37 s16 si_global_node_nums[OCFS2_MAX_SLOTS];
40 int ocfs2_init_slot_info(struct ocfs2_super *osb);
41 void ocfs2_free_slot_info(struct ocfs2_slot_info *si);
43 int ocfs2_find_slot(struct ocfs2_super *osb);
44 void ocfs2_put_slot(struct ocfs2_super *osb);
46 void ocfs2_update_slot_info(struct ocfs2_slot_info *si);
47 int ocfs2_update_disk_slots(struct ocfs2_super *osb,
48 struct ocfs2_slot_info *si);
50 s16 ocfs2_node_num_to_slot(struct ocfs2_slot_info *si,
52 void ocfs2_clear_slot(struct ocfs2_slot_info *si,
55 void ocfs2_populate_mounted_map(struct ocfs2_super *osb);
57 static inline int ocfs2_is_empty_slot(struct ocfs2_slot_info *si,
60 BUG_ON(slot_num == OCFS2_INVALID_SLOT);
61 assert_spin_locked(&si->si_lock);
63 return si->si_global_node_nums[slot_num] == OCFS2_INVALID_SLOT;