1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * ifile.h - NILFS inode file
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Written by Amagai Yoshiji.
8*4882a593Smuzhiyun * Revised by Ryusuke Konishi.
9*4882a593Smuzhiyun *
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #ifndef _NILFS_IFILE_H
13*4882a593Smuzhiyun #define _NILFS_IFILE_H
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include <linux/fs.h>
16*4882a593Smuzhiyun #include <linux/buffer_head.h>
17*4882a593Smuzhiyun #include "mdt.h"
18*4882a593Smuzhiyun #include "alloc.h"
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun static inline struct nilfs_inode *
nilfs_ifile_map_inode(struct inode * ifile,ino_t ino,struct buffer_head * ibh)22*4882a593Smuzhiyun nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun void *kaddr = kmap(ibh->b_page);
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
nilfs_ifile_unmap_inode(struct inode * ifile,ino_t ino,struct buffer_head * ibh)29*4882a593Smuzhiyun static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
30*4882a593Smuzhiyun struct buffer_head *ibh)
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun kunmap(ibh->b_page);
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
36*4882a593Smuzhiyun int nilfs_ifile_delete_inode(struct inode *, ino_t);
37*4882a593Smuzhiyun int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *);
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
42*4882a593Smuzhiyun size_t inode_size, struct nilfs_inode *raw_inode,
43*4882a593Smuzhiyun struct inode **inodep);
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun #endif /* _NILFS_IFILE_H */
46