convert/common.h

   1 /*
   2  * This program is free software; you can redistribute it and/or
   3  * modify it under the terms of the GNU General Public
   4  * License v2 as published by the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful,
   7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   9  * General Public License for more details.
  10  *
  11  * You should have received a copy of the GNU General Public
  12  * License along with this program; if not, write to the
  13  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  14  * Boston, MA 021110-1307, USA.
  15  */
  16
  17 /*
  18  * Defines and function declarations for users of the mkfs API, no internal
  19  * defintions.
  20  */
  21
  22 #ifndef __BTRFS_CONVERT_COMMON_H__
  23 #define __BTRFS_CONVERT_COMMON_H__
  24
  25 #include "kerncompat.h"
  26 #include "common-defs.h"
  27 #include "extent-cache.h"
  28
  29 struct btrfs_mkfs_config;
  30
  31 struct btrfs_convert_context {
  32         u32 blocksize;
  33         u64 first_data_block;
  34         u64 block_count;
  35         u64 inodes_count;
  36         u64 free_inodes_count;
  37         u64 total_bytes;
  38         char *volume_name;
  39         const struct btrfs_convert_operations *convert_ops;
  40
  41         /* The accurate used space of old filesystem */
  42         struct cache_tree used_space;
  43
  44         /* Batched ranges which must be covered by data chunks */
  45         struct cache_tree data_chunks;
  46
  47         /* Free space which is not covered by data_chunks */
  48         struct cache_tree free_space;
  49
  50         void *fs_data;
  51 };
  52
  53 int make_convert_btrfs(int fd, struct btrfs_mkfs_config *cfg,
  54                               struct btrfs_convert_context *cctx);
  55
  56 #endif