68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License v2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 021110-1307, USA.
|
|
*/
|
|
|
|
/*
|
|
* Defines and function declarations for users of the mkfs API, no internal
|
|
* definitions.
|
|
*/
|
|
|
|
#ifndef __BTRFS_CONVERT_COMMON_H__
|
|
#define __BTRFS_CONVERT_COMMON_H__
|
|
|
|
#include "kerncompat.h"
|
|
#include "common/defs.h"
|
|
#include "common/extent-cache.h"
|
|
|
|
#define SOURCE_FS_UUID_SIZE (16)
|
|
|
|
struct btrfs_mkfs_config;
|
|
|
|
struct btrfs_convert_context {
|
|
u32 blocksize;
|
|
u64 first_data_block;
|
|
u64 block_count;
|
|
u64 inodes_count;
|
|
u64 free_inodes_count;
|
|
u64 total_bytes;
|
|
u64 free_bytes_initial;
|
|
char *volume_name;
|
|
u8 fs_uuid[SOURCE_FS_UUID_SIZE];
|
|
const struct btrfs_convert_operations *convert_ops;
|
|
|
|
/* The accurate used space of old filesystem */
|
|
struct cache_tree used_space;
|
|
|
|
/* Batched ranges which must be covered by data chunks */
|
|
struct cache_tree data_chunks;
|
|
|
|
/* Free space which is not covered by data_chunks */
|
|
struct cache_tree free_space;
|
|
|
|
/*
|
|
* Free space reserved for ENOSPC report, it's just a copy free_space.
|
|
* But after initial calculation, free_space_initial is no longer
|
|
* updated, so we have a good idea on how much free space we really
|
|
* have for btrfs.
|
|
*/
|
|
struct cache_tree free_space_initial;
|
|
void *fs_data;
|
|
};
|
|
|
|
int make_convert_btrfs(int fd, struct btrfs_mkfs_config *cfg,
|
|
struct btrfs_convert_context *cctx);
|
|
|
|
#endif
|