LXR linux/fs/nilfs2/dat.h

   1/*
   2 * dat.h - NILFS disk address translation.
   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_DAT_H
  20#define _NILFS_DAT_H
  21
  22#include <linux/types.h>
  23#include <linux/buffer_head.h>
  24#include <linux/fs.h>
  25#include <linux/nilfs2_ondisk.h>        /* nilfs_inode, nilfs_checkpoint */
  26
  27
  28struct nilfs_palloc_req;
  29
  30int nilfs_dat_translate(struct inode *, __u64, sector_t *);
  31
  32int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
  33void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
  34void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
  35int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
  36void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
  37                            sector_t);
  38int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
  39void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
  40void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
  41int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
  42                             struct nilfs_palloc_req *);
  43void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
  44                             struct nilfs_palloc_req *, int);
  45void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
  46                            struct nilfs_palloc_req *);
  47
  48int nilfs_dat_mark_dirty(struct inode *, __u64);
  49int nilfs_dat_freev(struct inode *, __u64 *, size_t);
  50int nilfs_dat_move(struct inode *, __u64, sector_t);
  51ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned int, size_t);
  52
  53int nilfs_dat_read(struct super_block *sb, size_t entry_size,
  54                   struct nilfs_inode *raw_inode, struct inode **inodep);
  55
  56#endif  /* _NILFS_DAT_H */
  57