release/src-rt-6.x.4708/linux/linux-2.6.36/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
  31 struct nilfs_palloc_req;
  32
  33 int nilfs_dat_translate(struct inode *, __u64, sector_t *);
  34
  35 int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
  36 void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
  37 void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
  38 int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
  39 void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
  40                             sector_t);
  41 int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
  42 void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
  43 void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
  44 int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
  45                              struct nilfs_palloc_req *);
  46 void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
  47                              struct nilfs_palloc_req *, int);
  48 void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
  49                             struct nilfs_palloc_req *);
  50
  51 int nilfs_dat_mark_dirty(struct inode *, __u64);
  52 int nilfs_dat_freev(struct inode *, __u64 *, size_t);
  53 int nilfs_dat_move(struct inode *, __u64, sector_t);
  54 ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned, size_t);
  55
  56 int nilfs_dat_read(struct inode *dat, struct nilfs_inode *raw_inode);
  57 struct inode *nilfs_dat_new(struct the_nilfs *nilfs, size_t entry_size);
  58
  59 #endif  /* _NILFS_DAT_H */