| 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
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| 2 | /* |
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| 3 | * NILFS direct block pointer. |
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| 4 | * |
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| 5 | * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. |
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| 6 | * |
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| 7 | * Written by Koji Sato. |
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| 8 | */ |
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| 9 | |
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| 10 | #ifndef _NILFS_DIRECT_H |
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| 11 | #define _NILFS_DIRECT_H |
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| 12 | |
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| 13 | #include <linux/types.h> |
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| 14 | #include <linux/buffer_head.h> |
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| 15 | #include "bmap.h" |
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| 16 | |
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| 17 | |
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| 18 | #define NILFS_DIRECT_NBLOCKS (NILFS_BMAP_SIZE / sizeof(__le64) - 1) |
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| 19 | #define NILFS_DIRECT_KEY_MIN 0 |
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| 20 | #define NILFS_DIRECT_KEY_MAX (NILFS_DIRECT_NBLOCKS - 1) |
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| 21 | |
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| 22 | |
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| 23 | int nilfs_direct_init(struct nilfs_bmap *); |
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| 24 | int nilfs_direct_delete_and_convert(struct nilfs_bmap *, __u64, __u64 *, |
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| 25 | __u64 *, int); |
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| 26 | |
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| 27 | |
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| 28 | #endif /* _NILFS_DIRECT_H */ |
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| 29 | |
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