direct.h 645 B

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