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Ryusuke Konishi43bfb452009-04-06 19:01:30 -07001/*
2 * ifile.h - NILFS inode file
3 *
4 * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 *
20 * Written by Amagai Yoshiji <amagai@osrg.net>
21 * Revised by Ryusuke Konishi <ryusuke@osrg.net>
22 *
23 */
24
25#ifndef _NILFS_IFILE_H
26#define _NILFS_IFILE_H
27
28#include <linux/fs.h>
29#include <linux/buffer_head.h>
30#include <linux/nilfs2_fs.h>
31#include "mdt.h"
32#include "alloc.h"
33
34#define NILFS_IFILE_GFP NILFS_MDT_GFP
35
36static inline struct nilfs_inode *
37nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
38{
39 void *kaddr = kmap(ibh->b_page);
40 return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
41}
42
43static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
44 struct buffer_head *ibh)
45{
46 kunmap(ibh->b_page);
47}
48
49int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
50int nilfs_ifile_delete_inode(struct inode *, ino_t);
51int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);
52
53#endif /* _NILFS_IFILE_H */