[linux.git] / fs / nilfs2 / ifile.h

/*
 * ifile.h - NILFS inode file
 *
 * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Written by Amagai Yoshiji <[email protected]>
 * Revised by Ryusuke Konishi <[email protected]>
 *
 */

#ifndef _NILFS_IFILE_H
#define _NILFS_IFILE_H

#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/nilfs2_fs.h>
#include "mdt.h"
#include "alloc.h"

#define NILFS_IFILE_GFP  NILFS_MDT_GFP

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 **);

#endif	/* _NILFS_IFILE_H */
Commit	Line	Data
43bfb45e RK	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 <[email protected]>
	21	* Revised by Ryusuke Konishi <[email protected]>
	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	#define NILFS_IFILE_GFP NILFS_MDT_GFP
	35
	36	static inline struct nilfs_inode *
	37	nilfs_ifile_map_inode(struct inode ifile, ino_t ino, struct buffer_head ibh)
	38	{
	39	void *kaddr = kmap(ibh->b_page);
	40	return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
	41	}
	42
	43	static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
	44	struct buffer_head *ibh)
	45	{
	46	kunmap(ibh->b_page);
	47	}
	48
	49	int nilfs_ifile_create_inode(struct inode , ino_t , struct buffer_head **);
	50	int nilfs_ifile_delete_inode(struct inode *, ino_t);
	51	int nilfs_ifile_get_inode_block(struct inode , ino_t, struct buffer_head *);
	52
	53	#endif /* _NILFS_IFILE_H */