fs/nilfs2/cpfile.h

   1 /*
   2  * cpfile.h - NILFS checkpoint file.
   3  *
   4  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * Written by Koji Sato.
  17  */
  18
  19 #ifndef _NILFS_CPFILE_H
  20 #define _NILFS_CPFILE_H
  21
  22 #include <linux/fs.h>
  23 #include <linux/buffer_head.h>
  24 #include <linux/nilfs2_api.h>           /* nilfs_cpstat */
  25 #include <linux/nilfs2_ondisk.h>        /* nilfs_inode, nilfs_checkpoint */
  26
  27
  28 int nilfs_cpfile_get_checkpoint(struct inode *, __u64, int,
  29                                 struct nilfs_checkpoint **,
  30                                 struct buffer_head **);
  31 void nilfs_cpfile_put_checkpoint(struct inode *, __u64, struct buffer_head *);
  32 int nilfs_cpfile_delete_checkpoints(struct inode *, __u64, __u64);
  33 int nilfs_cpfile_delete_checkpoint(struct inode *, __u64);
  34 int nilfs_cpfile_change_cpmode(struct inode *, __u64, int);
  35 int nilfs_cpfile_is_snapshot(struct inode *, __u64);
  36 int nilfs_cpfile_get_stat(struct inode *, struct nilfs_cpstat *);
  37 ssize_t nilfs_cpfile_get_cpinfo(struct inode *, __u64 *, int, void *,
  38                                 unsigned int, size_t);
  39
  40 int nilfs_cpfile_read(struct super_block *sb, size_t cpsize,
  41                       struct nilfs_inode *raw_inode, struct inode **inodep);
  42
  43 #endif  /* _NILFS_CPFILE_H */