| /* 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 */ |