mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 00:04:15 +08:00
2961980972
This adds a meta data file which holds checkpoint entries in its data blocks. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*
|
|
* 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>
|
|
|
|
#define NILFS_CPFILE_GFP NILFS_MDT_GFP
|
|
|
|
|
|
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,
|
|
struct nilfs_cpinfo *, size_t);
|
|
|
|
#endif /* _NILFS_CPFILE_H */
|