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  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  * Written by Koji Sato <koji@osrg.net>.
  21  */
  22
  23 #ifndef _NILFS_CPFILE_H
  24 #define _NILFS_CPFILE_H
  25
  26 #include <linux/fs.h>
  27 #include <linux/buffer_head.h>
  28 #include <linux/nilfs2_fs.h>
  29
  30 #define NILFS_CPFILE_GFP        NILFS_MDT_GFP
  31
  32
  33 int nilfs_cpfile_get_checkpoint(struct inode *, __u64, int,
  34                                 struct nilfs_checkpoint **,
  35                                 struct buffer_head **);
  36 void nilfs_cpfile_put_checkpoint(struct inode *, __u64, struct buffer_head *);
  37 int nilfs_cpfile_delete_checkpoints(struct inode *, __u64, __u64);
  38 int nilfs_cpfile_delete_checkpoint(struct inode *, __u64);
  39 int nilfs_cpfile_change_cpmode(struct inode *, __u64, int);
  40 int nilfs_cpfile_is_snapshot(struct inode *, __u64);
  41 int nilfs_cpfile_get_stat(struct inode *, struct nilfs_cpstat *);
  42 ssize_t nilfs_cpfile_get_cpinfo(struct inode *, __u64 *, int, void *, unsigned,
  43                                 size_t);
  44
  45 #endif  /* _NILFS_CPFILE_H */