| /* | |
| * direct.h - NILFS direct block pointer. | |
| * | |
| * 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. | |
| * | |
| * 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 */ |