1/*
 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 * Written by Amagai Yoshiji.
17 * Revised by Ryusuke Konishi.
 
 
 
 
18 *
19 */
20
21#ifndef _NILFS_IFILE_H
22#define _NILFS_IFILE_H
23
24#include <linux/fs.h>
25#include <linux/buffer_head.h>
 
26#include "mdt.h"
27#include "alloc.h"
28
29
30static inline struct nilfs_inode *
31nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
32{
33	void *kaddr = kmap(ibh->b_page);
34
35	return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
36}
37
38static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
39					   struct buffer_head *ibh)
40{
41	kunmap(ibh->b_page);
42}
43
44int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
45int nilfs_ifile_delete_inode(struct inode *, ino_t);
46int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);
47
48int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *);
49
50int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
51		     size_t inode_size, struct nilfs_inode *raw_inode,
52		     struct inode **inodep);
53
54#endif	/* _NILFS_IFILE_H */

 1/*
 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
35static inline struct nilfs_inode *
36nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
37{
38	void *kaddr = kmap(ibh->b_page);
 
39	return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
40}
41
42static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
43					   struct buffer_head *ibh)
44{
45	kunmap(ibh->b_page);
46}
47
48int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
49int nilfs_ifile_delete_inode(struct inode *, ino_t);
50int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);
51
52int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *);
53
54int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
55		     size_t inode_size, struct nilfs_inode *raw_inode,
56		     struct inode **inodep);
57
58#endif	/* _NILFS_IFILE_H */