original development tree for Linux kernel GTP module; now long in mainline.
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/*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Written by Koji Sato <koji@osrg.net>.
*/
#ifndef _NILFS_CPFILE_H
#define _NILFS_CPFILE_H
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/nilfs2_fs.h>
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,
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 */