[linux-2.6-block.git] / fs / nilfs2 / ifile.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * ifile.h - NILFS inode file
 *
 * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
 *
 * Written by Amagai Yoshiji.
 * Revised by Ryusuke Konishi.
 *
 */

#ifndef _NILFS_IFILE_H
#define _NILFS_IFILE_H

#include <linux/fs.h>
#include <linux/buffer_head.h>
#include "mdt.h"
#include "alloc.h"


static inline struct nilfs_inode *
nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
{
	void *kaddr = kmap(ibh->b_page);

	return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
}

static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
					   struct buffer_head *ibh)
{
	kunmap(ibh->b_page);
}

int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
int nilfs_ifile_delete_inode(struct inode *, ino_t);
int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);

int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *);

int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
		     size_t inode_size, struct nilfs_inode *raw_inode,
		     struct inode **inodep);

#endif	/* _NILFS_IFILE_H */
Commit	Line	Data
ae98043f	1	/* SPDX-License-Identifier: GPL-2.0+ */
43bfb45e RK	2	/*
	3	* ifile.h - NILFS inode file
	4	*
	5	* Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
	6	*
4b420ab4 RK	7	* Written by Amagai Yoshiji.
4b420ab4 RK	8	* Revised by Ryusuke Konishi.
43bfb45e RK	9	*
	10	*/
	11
	12	#ifndef _NILFS_IFILE_H
	13	#define _NILFS_IFILE_H
	14
	15	#include <linux/fs.h>
	16	#include <linux/buffer_head.h>
43bfb45e RK	17	#include "mdt.h"
	18	#include "alloc.h"
	19
43bfb45e RK	20
	21	static inline struct nilfs_inode *
	22	nilfs_ifile_map_inode(struct inode ifile, ino_t ino, struct buffer_head ibh)
	23	{
	24	void *kaddr = kmap(ibh->b_page);
4ad364ca	25
43bfb45e RK	26	return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
	27	}
	28
	29	static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
	30	struct buffer_head *ibh)
	31	{
	32	kunmap(ibh->b_page);
	33	}
	34
	35	int nilfs_ifile_create_inode(struct inode , ino_t , struct buffer_head **);
	36	int nilfs_ifile_delete_inode(struct inode *, ino_t);
	37	int nilfs_ifile_get_inode_block(struct inode , ino_t, struct buffer_head *);
	38
c7ef972c VD	39	int nilfs_ifile_count_free_inodes(struct inode , u64 , u64 *);
c7ef972c VD	40
f1e89c86 RK	41	int nilfs_ifile_read(struct super_block sb, struct nilfs_root root,
	42	size_t inode_size, struct nilfs_inode *raw_inode,
	43	struct inode **inodep);
79739565	44
43bfb45e	45	#endif /* _NILFS_IFILE_H */