tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 */