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 * 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_DAT_H
  24#define _NILFS_DAT_H
  25
  26#include <linux/types.h>
  27#include <linux/buffer_head.h>
  28#include <linux/fs.h>
  29
  30
  31struct nilfs_palloc_req;
  32
  33int nilfs_dat_translate(struct inode *, __u64, sector_t *);
  34
  35int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
  36void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
  37void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
  38int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
  39void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
  40                            sector_t);
  41int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
  42void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
  43void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
  44int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
  45                             struct nilfs_palloc_req *);
  46void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
  47                             struct nilfs_palloc_req *, int);
  48void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
  49                            struct nilfs_palloc_req *);
  50
  51int nilfs_dat_mark_dirty(struct inode *, __u64);
  52int nilfs_dat_freev(struct inode *, __u64 *, size_t);
  53int nilfs_dat_move(struct inode *, __u64, sector_t);
  54ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned, size_t);
  55
  56#endif  /* _NILFS_DAT_H */
  57