blob: 23ad2f091e768c91b52caa69e672d2b9501223c0 [file] [log] [blame]
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 *
Ryusuke Konishi4b420ab2016-05-23 16:23:09 -070016 * Written by Amagai Yoshiji.
17 * Revised by Ryusuke Konishi.
Ryusuke Konishi43bfb452009-04-06 19:01:30 -070018 *
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 <linux/nilfs2_fs.h>
27#include "mdt.h"
28#include "alloc.h"
29
Ryusuke Konishi43bfb452009-04-06 19:01:30 -070030
31static inline struct nilfs_inode *
32nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
33{
34 void *kaddr = kmap(ibh->b_page);
Ryusuke Konishi4ad364c2016-05-23 16:23:25 -070035
Ryusuke Konishi43bfb452009-04-06 19:01:30 -070036 return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
37}
38
39static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
40 struct buffer_head *ibh)
41{
42 kunmap(ibh->b_page);
43}
44
45int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
46int nilfs_ifile_delete_inode(struct inode *, ino_t);
47int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);
48
Vyacheslav Dubeykoc7ef9722013-07-03 15:08:05 -070049int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *);
50
Ryusuke Konishif1e89c82010-09-05 12:20:59 +090051int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
52 size_t inode_size, struct nilfs_inode *raw_inode,
53 struct inode **inodep);
Ryusuke Konishi79739562009-11-12 23:56:43 +090054
Ryusuke Konishi43bfb452009-04-06 19:01:30 -070055#endif /* _NILFS_IFILE_H */