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

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * direct.h - NILFS direct block pointer.
 *
 * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
 *
 * Written by Koji Sato.
 */

#ifndef _NILFS_DIRECT_H
#define _NILFS_DIRECT_H

#include <linux/types.h>
#include <linux/buffer_head.h>
#include "bmap.h"


#define NILFS_DIRECT_NBLOCKS	(NILFS_BMAP_SIZE / sizeof(__le64) - 1)
#define NILFS_DIRECT_KEY_MIN	0
#define NILFS_DIRECT_KEY_MAX	(NILFS_DIRECT_NBLOCKS - 1)


int nilfs_direct_init(struct nilfs_bmap *);
int nilfs_direct_delete_and_convert(struct nilfs_bmap *, __u64, __u64 *,
				    __u64 *, int);


#endif	/* _NILFS_DIRECT_H */
Commit	Line	Data
ae98043f	1	/* SPDX-License-Identifier: GPL-2.0+ */
36a580eb KS	2	/*
	3	* direct.h - NILFS direct block pointer.
	4	*
	5	* Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
	6	*
4b420ab4	7	* Written by Koji Sato.
36a580eb KS	8	*/
	9
	10	#ifndef _NILFS_DIRECT_H
	11	#define _NILFS_DIRECT_H
	12
	13	#include <linux/types.h>
	14	#include <linux/buffer_head.h>
	15	#include "bmap.h"
	16
	17
36a580eb KS	18	#define NILFS_DIRECT_NBLOCKS (NILFS_BMAP_SIZE / sizeof(__le64) - 1)
	19	#define NILFS_DIRECT_KEY_MIN 0
	20	#define NILFS_DIRECT_KEY_MAX (NILFS_DIRECT_NBLOCKS - 1)
	21
	22
3033342a	23	int nilfs_direct_init(struct nilfs_bmap *);
36a580eb	24	int nilfs_direct_delete_and_convert(struct nilfs_bmap , __u64, __u64 ,
3033342a	25	__u64 *, int);
36a580eb KS	26
	27
	28	#endif /* _NILFS_DIRECT_H */