1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * NILFS direct block pointer. 4 * 5 * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. 6 * 7 * Written by Koji Sato. 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 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 23 int nilfs_direct_init(struct nilfs_bmap *); 24 int nilfs_direct_delete_and_convert(struct nilfs_bmap *, __u64, __u64 *, 25 __u64 *, int); 26 27 28 #endif /* _NILFS_DIRECT_H */ 29