/*
   * cpfile.h - NILFS checkpoint file.
   *
   * 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_CPFILE_H
  #define _NILFS_CPFILE_H
  
  #include <linux/fs.h>
  #include <linux/buffer_head.h>

  #include <linux/nilfs2_api.h>		/* nilfs_cpstat */
  #include <linux/nilfs2_ondisk.h>	/* nilfs_inode, nilfs_checkpoint */

  
  int nilfs_cpfile_get_checkpoint(struct inode *, __u64, int,
  				struct nilfs_checkpoint **,
  				struct buffer_head **);
  void nilfs_cpfile_put_checkpoint(struct inode *, __u64, struct buffer_head *);
  int nilfs_cpfile_delete_checkpoints(struct inode *, __u64, __u64);
  int nilfs_cpfile_delete_checkpoint(struct inode *, __u64);
  int nilfs_cpfile_change_cpmode(struct inode *, __u64, int);
  int nilfs_cpfile_is_snapshot(struct inode *, __u64);
  int nilfs_cpfile_get_stat(struct inode *, struct nilfs_cpstat *);

  ssize_t nilfs_cpfile_get_cpinfo(struct inode *, __u64 *, int, void *,
  				unsigned int, size_t);

  int nilfs_cpfile_read(struct super_block *sb, size_t cpsize,
  		      struct nilfs_inode *raw_inode, struct inode **inodep);

  #endif	/* _NILFS_CPFILE_H */