27db5d147f
When we sync the kernel we're going to pull in the fs.h dependency, which defines BLOCK_SIZE/BLOCK_MASK. Avoid this conflict by renaming the image definitions with the IMAGE_ prefix. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: David Sterba <dsterba@suse.com>
79 lines
2 KiB
C
79 lines
2 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.
|
|
*/
|
|
|
|
#ifndef __BTRFS_IMAGE_METADUMP_H__
|
|
#define __BTRFS_IMAGE_METADUMP_H__
|
|
|
|
#include "kerncompat.h"
|
|
#include "kernel-lib/rbtree.h"
|
|
#include "kernel-lib/list.h"
|
|
#include "kernel-shared/ctree.h"
|
|
|
|
#define IMAGE_BLOCK_SIZE SZ_1K
|
|
#define IMAGE_BLOCK_MASK (IMAGE_BLOCK_SIZE - 1)
|
|
|
|
#define ITEMS_PER_CLUSTER ((IMAGE_BLOCK_SIZE - sizeof(struct meta_cluster)) / \
|
|
sizeof(struct meta_cluster_item))
|
|
|
|
#define COMPRESS_NONE 0
|
|
#define COMPRESS_ZLIB 1
|
|
|
|
struct dump_version {
|
|
u64 magic_cpu;
|
|
int version;
|
|
int max_pending_size;
|
|
unsigned int extra_sb_flags:1;
|
|
};
|
|
|
|
extern const struct dump_version dump_versions[];
|
|
const extern struct dump_version *current_version;
|
|
|
|
struct meta_cluster_item {
|
|
__le64 bytenr;
|
|
__le32 size;
|
|
} __attribute__ ((__packed__));
|
|
|
|
struct meta_cluster_header {
|
|
__le64 magic;
|
|
__le64 bytenr;
|
|
__le32 nritems;
|
|
u8 compress;
|
|
} __attribute__ ((__packed__));
|
|
|
|
/* cluster header + index items + buffers */
|
|
struct meta_cluster {
|
|
struct meta_cluster_header header;
|
|
struct meta_cluster_item items[];
|
|
} __attribute__ ((__packed__));
|
|
|
|
struct fs_chunk {
|
|
u64 logical;
|
|
u64 physical;
|
|
/*
|
|
* physical_dup only store additional physical for BTRFS_BLOCK_GROUP_DUP
|
|
* currently restore only support single and DUP
|
|
* TODO: modify this structure and the function related to this
|
|
* structure for support RAID*
|
|
*/
|
|
u64 physical_dup;
|
|
u64 bytes;
|
|
struct rb_node l;
|
|
struct rb_node p;
|
|
struct list_head list;
|
|
};
|
|
|
|
#endif
|