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
  28 struct nilfs_palloc_req;
  29
  30 int nilfs_dat_translate(struct inode *, __u64, sector_t *);
  31
  32 int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
  33 void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
  34 void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
  35 int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
  36 void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
  37                             sector_t);
  38 int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
  39 void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
  40 void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
  41 int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
  42                              struct nilfs_palloc_req *);
  43 void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
  44                              struct nilfs_palloc_req *, int);
  45 void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
  46                             struct nilfs_palloc_req *);
  47
  48 int nilfs_dat_mark_dirty(struct inode *, __u64);
  49 int nilfs_dat_freev(struct inode *, __u64 *, size_t);
  50 int nilfs_dat_move(struct inode *, __u64, sector_t);
  51 ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned int, size_t);
  52
  53 int 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 */