forked from Minki/linux
bd8169efae
This is a preparation for the successive cleanup ("nilfs2: allow btree
to directly call dat operations").
This adds functions bundling a few operations to change an entry of
virtual block address on the dat file.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
/*
|
|
* dat.h - NILFS disk address translation.
|
|
*
|
|
* 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_DAT_H
|
|
#define _NILFS_DAT_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/buffer_head.h>
|
|
#include <linux/fs.h>
|
|
|
|
|
|
struct nilfs_palloc_req;
|
|
|
|
int nilfs_dat_translate(struct inode *, __u64, sector_t *);
|
|
|
|
int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
|
|
void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
|
|
void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
|
|
int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
|
|
void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
|
|
sector_t);
|
|
int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
|
|
void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
|
|
void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
|
|
int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
|
|
struct nilfs_palloc_req *);
|
|
void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
|
|
struct nilfs_palloc_req *, int);
|
|
void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
|
|
struct nilfs_palloc_req *);
|
|
|
|
int nilfs_dat_mark_dirty(struct inode *, __u64);
|
|
int nilfs_dat_freev(struct inode *, __u64 *, size_t);
|
|
int nilfs_dat_move(struct inode *, __u64, sector_t);
|
|
ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned, size_t);
|
|
|
|
#endif /* _NILFS_DAT_H */
|